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Custom Designed Upthrust Constant Spring Supports

Custom Designed Upthrust Constant Spring Supports

PT&P designed Fig. PTP 200-U upthrust constant spring supports modified to accommodate an increased installed height. PT&P fabricated these constant assemblies from A36 carbon steel. They were designed for temperatures up to 185°F, and a load of 15,737 lb. The constants are capable of a downward total travel of 2″ and are 61″ L x 25″ W x 39″ H. Standard load and travel tests were conducted prior to shipment.

When it comes to supporting piping and related components that experience significant vertical movement, constant spring supports are the go-to solution. These specialized supports are designed to keep the load consistent throughout the full range of movement, eliminating any significant deviations. But what makes them indispensable for industrial applications? Let’s break it down.

What Are Constant Spring Supports?

Constant springs maintain a steady supporting force as pipes expand and contract due to temperature changes. They come in horizontal or vertical designs and can be customized to handle various loads, movements, and configurations. Their ability to adapt to dynamic conditions ensures the integrity and efficiency of piping systems across diverse industries.

Key Benefits of Constant Spring Supports

  1. Manage Pipe Movement: Handle changes in pipe position caused by temperature fluctuations.
  2. Maintain Alignment: Prevent misalignment, ensuring pipes stay in proper positions.
  3. Reduce Thermal Stress: Minimize stress caused by thermal expansion and contraction.
  4. Adapt to Variable Loads: Provide reliable support in changing conditions.
  5. Versatility: Perfect for both high-temperature and cryogenic systems.

Constant spring supports find their way into a wide range of applications, including:

  • Piping Systems: Essential in refineries, power plants, and chemical processing facilities.
  • HVAC Systems: Support ducts in heating, ventilation, and air conditioning systems.
  • Steam Systems: Ensure proper alignment in steam piping for manufacturing and power generation.
  • Oil and Gas Pipelines: Compensate for temperature changes over long distances.
  • Process Equipment: Safeguard reactors, heat exchangers, and vessels from stress-induced damage.
  • Rotating Equipment: Reduce stress on pumps and compressors by supporting connected piping, prolonging equipment life.

Spotlight on U-Type Constant Springs

U-Type constant springs are particularly popular for their ability to provide steady support to pipelines, ducts, and other structures experiencing thermal movement. These springs play a vital role in maintaining system integrity and preventing damage across various industrial settings.

From managing thermal expansion in pipelines to safeguarding critical equipment, constant spring supports are the unsung heroes of industrial operations. Their reliability and adaptability make them an invaluable asset across countless applications.

At our Houston-based facility, we design and manufacture constant spring supports with unmatched speed and precision. Operating 24/7, we are equipped to handle both small emergency orders and large-scale production needs. Our expertise spans industries like energy, oil & gas, petrochemicals, manufacturing, and more—delivering solutions globally. Our wide range of industry expertise demonstrates our unique ability to provide solutions across the globe in every sector we serve.

PT&P REF. ORIGINAL POST 03242015

110 Custom Pipe Clamps for a Construction Company

110 Custom Designed Pipe Clamps For A Construction Company In Ohio

Type: Pipe Clamps
Size: 12″ wide | 42″ Dia. pipe
Material: A36 carbon steel with PVC pad
Testing: Standard Q.C. Inspections

Piping Technology and Products, Inc. custom-designed a total of 110 of these large pipe clamps for an interstate natural gas pipeline in Ohio. The pipe clamps are fabricated from A36 carbon steel with PVC pad bonded to the clamp’s inside radius. The pipe clamps have a physical size of 12" wide, for a 42" diameter pipe. Standard QC inspections were performed with a turn-around time of 8 weeks.

The interstate natural gas pipeline project focused on constructing a 256-mile route. The project, targeting the energy needs in the Midwest at the time. Clearing activities started in Lake Marlboro, Nimishillen, and Washington townships, setting up the groundwork for the pipeline route that would run from eastern Ohio to the northern and western parts of the state.

The exact number of pipe clamps stocked by Piping Technology & Products (PT&P) can vary in the hundreds, as we offer a wide range of pipe clamps to accommodate different pipe sizes, materials, and load requirements. PT&P typically stocks a variety of types, including standard pipe clamps, adjustable clamps, riser clamps, U-bolts, and custom clamps, such as these, designed for specific applications however, in most cases we fabricate specifically in our Houston headquarters to the project and client needs based on the design where sizes, material, and technical requirements may vary.

This year, we made significant capital investments in our manufacturing operations to enhance efficiency and deliver top-quality support structures in greater quantities, enabling faster field deliveries.

PT&P REF. ORIGINAL POST 04302018

Big Ton Spring Supports Custom Designed for a Chemical Plant in Singapore

Big Ton Spring Supports Custom Designed For A Chemical Plant In Singapore

Type: Big Ton Spring Supports
Material: Carbon Steel/SAE 5160H
Design: 1.75″ up & Operating Load 130,642 N
Testing: Standard Load & Travel Tests

PT&P custom designed big ton spring supports for a chemical plant in Singapore. These supports are ideal for bearing the weight of large, heavy equipment such as compressors, vessels, and pumps in power and petrochemical plants. The supports feature a carbon steel housing and frame, with a spring coil made from SAE 5160H. The design allows for a controlled movement of 1.75 inches upward under an operating load of 130,642 N. This solution prevents the need for a complete redesign of the piping system, offering significant cost savings to the customer. These custom Big Ton supports were delivered within six weeks.

Throughout the years, we’ve encountered numerous instances where clients have approached us with unique and unconventional applications requiring either a completely new product or modifications to an existing one. A prime example is our Big Ton, which was developed in response to a client’s request for a support capable of bearing 1 million pounds. We’ve designed Big Tons for a range of industries, including LNG, petrochemical, refining, and PDH facilities. Beyond design and manufacturing, these supports undergo thorough in-house testing by our QC teams to ensure full functionality before being shipped to the client. Click here to watch a video to see how this support can be adjusted in the field.

PT&P REF. ORIGINAL POST 12262017

Compact Spring Supports Designed for an Oil Refinery

Compact Spring Supports Designed For 9K Load At An Oil Refinery

Type: Compact Spring Supports
Material: Carbon Steel w/ Hot-Dipped Galvanized (HDG)
Design: 9,000 lb. Load | +/-0.125″ Vertical Movement
Testing: Load Testing

PT&P custom-designed 76 compact spring supports also known as “disc spring” supports, for a major oil refinery. These specialized supports are ideal for placement beneath equipment flanges to minimize excessive loads on delicate machinery. As an industry leader, PT&P has been supplying custom compact springs globally for over a decade.

Compact spring supports are essential for small-travel systems, helping prevent equipment failures, ensuring safe plant operations, and reducing operational costs. They provide the same load-bearing capacity as conventional springs while requiring 50% less space. If unaddressed, pipe strain can lead to issues such as misalignment, thermal expansion, and pipe lift-off, placing undue stress on expensive equipment.

In a typical refinery, pipe strain-related problems can result in pump repair costs exceeding $15 million annually. Compact springs play a vital role in supporting centrifugal pumps, compressors, air-cooled heat exchangers, vessels, and steam turbines. Additionally, they help facilities meet regulatory standards, including API, ASME, UBC, and compliance requirements from OSHA, EPA, WISHA, and other governing bodies.

The springs are constructed with stainless steel Belleville washers, while the housings are made from A-36 carbon steel and finished with a hot-dipped galvanized coating for corrosion resistance. Each assembly stands 3 inches tall, designed to support a 9,000-pound load with a movement capacity of +/- 0.125 inches (upward). Prior to shipment, every assembly underwent rigorous load testing to ensure performance.

Compact springs are engineered to reduce excessive loads on process equipment by effectively managing nozzle loads and maintaining flange seals. They can be installed directly beneath equipment, offering both space efficiency and performance reliability. Additionally, these springs are ideal for corrosive environments, such as those exposed to saltwater, marine air, or harsh chemicals. By utilizing corrosion-resistant materials like stainless steel or applying amorphous glass coatings, compact springs are built to withstand even the most challenging conditions.

PT&P REF. ORIGINAL POST 10192021

Variable Supports Fabricated in 48 hours for an Emergency Plant Shutdown

Variable Spring Supports Fabricated In Less Than 48 Hours For An Emergency Plant Shutdown Overseas In The Asia-Pacific Region

PT&P received a rush order for variable spring supports at 4:41 pm, quite late into the workday; however, this is business as usual, our manufacturing facility in Houston, TX operates 24/7 to support our customers.

Variable Spring Supports Fabricated In Less Than 48 Hours For An Emergency Plant Shutdown Overseas In The Asia-Pacific Region Variable Spring Supports Fabricated In Less Than 48 Hours For An Emergency Plant Shutdown Overseas In The Asia-Pacific Region
In this case, the customer’s olefins plant was experiencing significant losses and urgently needed to replace the springs to resume operations. Seven variable springs were designed, fabricated, and shipped within just two days to minimize downtime.

The F-type variable spring support is designed to support piping from below, directly from the foundation, concrete column, or supporting structural pipe rack steel. Adjustment is made by inserting a bar into holes in the load column and turning the load column as a jackscrew. As global leaders in variable spring manufacturing, we leveraged our adaptive manufacturing processes, utilizing pre-fabricated in-house components that allow for quick assembly as soon as orders are placed.

These variables were fabricated from carbon steel and hot-dipped galvanized for corrosion protection. They are designed to support loads ranging from 713 lb. to 1668 lb. and movements of 0.148″ to 0.133″. Load and travel tests, along with Q.C. inspections were performed before shipment.

Variable springs are used in many applications that include:

 

  • Paper and Pulp Mills
  • Petrochemical refineries for plastics, chemicals, polymers
  • Renewable plants for solar, carbon black, hydrogen, blue ammonia, and biochar facilities
  • Power plants for nuclear and fossil fuel power

PT&P REF. ORIGINAL POST 04132021

Hydraulic Snubbers Designed for LLDPE Chemical Plant

Hydraulic Snubbers Designed For Lldpe Chemical Plant

The Fronek A/DE Hydraulic Snubber is a manifold-designed hydraulic device that includes a high-pressure main cylinder, a flow control section with dual-stage velocity-sensitive poppet valves, and a spring-energized reservoir.   These Fig. 511 AD long hydraulic snubbers were created for a linear low-density (LLDPE) chemical plant in Louisiana. The snubbers with two (2) rear brackets range in length from 34-⅝” to 49”. They are designed with spherical, self-aligning ball bushings that allow for + 5° of angular motion or misalignment.  The snubbers can handle maximum loads varying up to 5520 lb. Cylinder sizes are 1-½” and 2-½” and have a 6” stroke. The hydraulic fluid is petroleum based and the seals are a mix of buna-nitrile and polyurethane and the pressurized hydraulic reservoir allows mounting in any spatial orientation. The snubbers are painted with a primer that utilizes zinc filled powder manufactured by Tnemec. Ⓡ  The formulation for the primer is Series H90-97 | Tneme-Zinc. Ⓡ

Specific applications where hydraulic snubbers are commonly used include:

  • Power Plants (Nuclear and Thermal): To protect piping and equipment from seismic events or pressure surges.
  • Petrochemical and Oil Refineries: To mitigate damage from vibrations, pressure fluctuations, and thermal expansion.
  • Industrial Piping Systems: To prevent failure due to dynamic forces like water hammer or large temperature swings.
  • Bridges and Structures: To absorb and reduce the effect of seismic or wind-induced forces.
  • Marine and Offshore Platforms: To protect against waves and operational vibrations.

Hydraulic snubbers are critical in environments where sudden forces could lead to catastrophic failures or damage. At both Fronek A/D and PT&P, we offer a wide range of experience and expertise in the manufacture and design of various pipe supports while maintaining a competitive price. We also offer 24×7 web-based emergency services, providing field service and quick turn-around time when you need it most.

PT&P REF. ORIGINAL POST 06212016

100-E Type Constant Spring Supports Custom Designed for a Power Plant in Canada

100-E Type Constant Spring Supports Custom Designed For A Power Plant In Canada

Type: Constant Spring Supports
Size: 52 1/4″ x 62 1/8″
Material: Carbon Steel
Design: Operating Load 21,600 to 26,350 lbs & of 3-7” of Movement
Testing: Standard Load & Travel Tests

PT&P custom designed and manufactured constant spring supports for a power plant in Canada. Four constant assemblies were fabricated using carbon steel and hot-dip galvanized to prevent corrosion. The custom-designed constants, sized and identified as 100-73 Type-E and 100-69 Type-E, were manufactured for a thermochemical process within the plant. These supports are designed for operating loads of 21,600 lbs. and 26,350 lbs., respectively, both with an operating movement of 3.7 inches. Load and travel testing were completed before shipment.

Constant spring supports are used for piping and related components where higher levels of vertical travel occur. Their job is to support the working load over the whole travel area while keeping it constant, i.e. without any considerable deviations. Constant spring supports are available in horizontal or vertical designs, and in a variety of sizes to accommodate different loads, movements, and hanger arrangements.

They maintain a consistent support force as pipes expand or contract with temperature changes. This helps:

      • Manage Pipe Movement: Accommodates changes in pipe position due to temperature variations.
      • Maintain Alignment: Keeps pipes properly aligned, preventing misalignment issues.
      • Reduce Thermal Stress: Minimizes stress caused by thermal expansion and contraction.
      • Handle Variable Loads: Provides reliable support under varying conditions.
      • Ensure Versatility: Suitable for both high-temperature and cryogenic systems.

Our capability to quickly design and manufacture these supports is unmatched in the industry. Our Houston-based operations run 24/7, ensuring we can handle small emergency requests and maintain high production capacity for our clients’ needs. Constant springs can be used in several applications. We have designed and manufactured for different industries all over the world. Some of the industries we have supported are energy and utilities, geothermal, oil & gas, petrochemical & chemical, renewable energy & environmental solutions, industrial & manufacturing, and infrastructure.

Our wide range of industry expertise demonstrates our unique ability to provide solutions across the globe in every sector we serve.

Cryogenic Insulated Pipe Supports Designed for a Petrochemical Complex in Louisiana

Cryogenic Pipe Supports Designed For A Petrochemical Complex In Louisiana

Type: Pre-Insulated Pipe Supports for Cryogenic Application
Size: 46″ – 52″ Diameter Range | 10 lb. & 20 lb. Density PUF Foam
Material: Hot-dipped Galvanized Carbon Steel | PUF | Polyester Film & Aluminum Foil
Testing: Dimensional and Visual Inspection

These cold shoe pre-insulated pipe supports were designed for a cryogenic pipeline at a petrochemical complex in Louisiana. These supports range in size from 46" to 52" in diameter and are engineered for temperatures as low as -20°F. The supports feature a dual-density polyurethane foam (PUF) insulation: the top portion has a density of 10 lb., while the bottom is 20 lb. high-density PUF. The shoe and bearing plates are constructed from carbon steel and finished with hot-dip galvanization for durability and corrosion protection. These cold shoes also include a vapor barrier, consisting of a three-layer lamination of polyester film and aluminum foil, ensuring effective insulation. Standard quality control tests were conducted on all units before shipment to ensure compliance with performance standards.

This type of cold shoe design is also utilized on liquefied natural gas (LNG) storage tanks. Liquefied Natural Gas (LNG) storage tanks are specialized containers designed to store LNG, which is natural gas that has been cooled to a liquid state at approximately -260°F (-162°C). This liquefaction process reduces the volume of the gas by about 600 times, making it much more efficient to store and transport. Most LNG tanks are double-walled with an inner and outer shell. The inner shell, typically made of stainless steel or nickel alloy, contains the LNG, while the outer shell, often made of carbon steel or concrete, provides structural support and can store up to 200,000 cubic meters or more.

Our pre-insulated pipe support portfolio is the most complete in terms of the types of insulation we work with and the industries we serve. We design and manufacture supports with:

  1. Permali (Cold Shoe) – Temperature range: Ambient to -300°F – Compressive strength: 22,000 PSI – Tensile strength: 28,000 PSI **

  2. Micarta (Cold Shoe) – Temperature range: Ambient to -300°F – Compressive strength: 39,000 PSI – Tensile strength: 12,000 PSI **

  3. Polyurethane (Cold Shoe) – Temperature range: Ambient to -300°F – Compressive strength: 200 PSI to 911 PSI (dependent on density) – Tensile strength: 12,000 PSI

  4. Foam Glass (Cold or Hot Shoe)** – Temperature range: -450°F to 1,000°F – Compressive strength: 100 PSI – Tensile strength: 50 PSI

  5. Marinite (Hot Shoe) – Temperature range: Ambient to 1,200°F – Compressive strength: 2,000 PSI – Tensile strength: 500 PSI **F. Calcium Silicate (Hot Shoe)** – Temperature range: Ambient to 1,200°F – Compressive strength: 160 PSI – Tensile strength: 50 PSI

The supports can be manufactured with carbon steel or stainless or the material the project may require. The thrush plates can be hastelloy, inconel, etc depending on the pipe material. Working with different metallurgies is a part of standard manufacturing protocols.

These supports are deployed in semiconductor, petrochemical, nuclear, blue hydrogen, blue ammonia, solar, LNG, pharma, data centers, automotive, mines, pulp/paper, building materials, food processing and EV battery plants.

PT&P REF. ORIGINAL POST 03282017

Variable Springs for a Propane Dehydrogenation Unit in Texas

Variable Spring Supports For A Propane Dehydrogenation Unit In Texas

Type: Variable Spring Supports
Size: Accommodate Elevation Difference up to 11′-5″
Material: Carbon Steel | Hot-dipped Galvanized
Design: 20,000 lb. Load | 4,700 lb./in. Spring Rate

PT&P designed and manufactured over 50 variable spring supports for a propane dehydrogenation (PDH) unit in Texas. The components, including the spring cans, rods, welded beam attachments, turnbuckles, and clevises, were fabricated from hot-dipped galvanized carbon steel to ensure durability and corrosion resistance. These variable spring supports are engineered to accommodate an elevation difference of up to 11’-5″ from the bottom of the steel structure to the pipe connection. They are designed to handle an operating load of 20,000 lb., with a spring rate of 4,700 lb./in., and facilitate a 0.007″ upward movement. Each support underwent standard load testing before being shipped to ensure they met the required specifications and performance standards.
In addition to spring supports, PDH units require other products from the Piping Technology and Products portfolio. Our field service team regularly works with PDH units by doing inspections and fine-tuning the supports because of the heavy loads the equipment requires. The experience of our team coupled with the knowledge and access to our specialized tools and equipment has clients calling us on a regular basis.
Spring supports are one example of what we can provide, but we also have designed and manufactured floating rings, fabric and metallic expansion joints, slide plates, constant supports, and fabricated pipe shoes, guides, and anchors in PDH units. PDH plants have the unique challenge of having high-temperature requirements.

Increasing demand for propylene in various industries such as automotive, packaging, and construction is driving the growth of the PDH unit market. Propylene is a key ingredient in the production of various plastics and synthetic materials, which are in high demand globally. Rising investments in petrochemical infrastructure in emerging economies, particularly in Asia-Pacific and the Middle East, are creating new opportunities for PDH unit manufacturers. The increasing demand for petrochemical products in these regions is driving the installation of new PDH units.

Variable spring supports are widely used in various industrial applications where pipelines, equipment, or structures experience vertical movement due to thermal expansion, weight changes, or other dynamic loads. Some common applications are heat exchangers, reactors, steam pipelines, high-temperature piping, and pumping stations to name a few. At PT&P, we specialize in designing and manufacturing custom variable spring supports tailored to meet the specific needs of both new plant constructions and retrofitting projects. Our expertise extends to creating custom solutions that seamlessly integrate into existing applications in older plants, even when the design is based on a competitor’s model. This flexibility ensures that our clients receive the optimal support system for their unique requirements, regardless of the plant’s age or existing infrastructure.

PT&P REF. ORIGINAL POST 11062018

Hold-Down Pipe Clamps for a Steam Methane Reformer (SMR) Supplying High-purity Hydrogen

Hold-Down Pipe Clamps Designed To Limit Vibration Caused By Rotating Equipment And Avoid Damage To The Surrounding Piping System

PT&P has significant expertise in the custom design and fabrication of hold-down pipe clamps, specifically tailored for piping systems and skid-mounted units across the power, chemical, and refinery industries worldwide. These hold-downs are engineered to minimize vibration caused by rotating equipment and to protect the surrounding piping systems from potential damage.

The hold-downs are constructed from carbon steel and feature a hot-dipped galvanized coating for enhanced durability. To further improve their performance, PTFE slide plates are incorporated into the design, which reduces friction between the pipe and the clamp, allowing for controlled movement when necessary. Additionally, fabric pads are used to enhance vibration dampening, ensuring the integrity of the system.

These clamps are designed for pipelines with diameters ranging from 2″ to 16″. The dimensions of the hold-downs vary, with sizes ranging from 3″ wide x 9-1/8″ long to 8″ wide x 25-3/4″ long. They are built to withstand operating temperatures of up to 200°F. A meticulous Quality Control visual inspection was conducted prior to shipment, ensuring that only the highest quality products are delivered.

Hold-downs are used in many applications. This year we have supplied them to refineries, semiconductor plants, chemical plants, and power plants. We were the first in the industry to create a catalog to make it easy for our clients to select what would work best in their application. Take a look at a Product Figure Index to see what we offer. PT&P can custom design and fabricate hold-downs for any pipe size application. Beyond hold-downs, PT&P also offers a variety of vibration control devices designed to accommodate different pipe orientations and locations, providing comprehensive solutions for vibration management in complex piping systems.

PT&P REF. ORIGINAL POST 09222020

Graphite Slide Plates Ranging in Size from 4″ to 10″

 

 

Graphite Slide Plates For An Technology And Engineering Company In North Carolina

Type: Graphite Slide Plates
Size: 4”-10” Length | 4”-10″ Width
Material: Graphite Sheets | Carbon Steel
Design: 2000 PSI Operating Pressure

PT&P manufactured multiple graphite slide plates for a technology and engineering company in North Carolina. The materials for these slide plates are made of graphite sheets with carbon steel backing pads. The dimensions range in length 4″ to 10″ and width 4″ to 10″ with an operating pressure of 2000 PSI. The carbon steel backing pads are hot dipped galvanized. The graphite pads were then bonded to carbon steel backing plates with a ¾ lip all around to allow for field welding. For high temperature applications, we can also bond and bolt the graphite slides to the carbon steel backing plates.

The materials used for slide plates can be specified based on the design. Other materials used in addition to graphite are:

  • PTFE
  • Bronzephite
  • Stainless Steel
  • Marinite

Comparison Chart of the different options:

Temperature Max Load Coefficient of Friction
Graphite +1000F Air & +3000F Intert Loads up to 2000 PSI 0.15
PTFE -320F to +400F Loads up to 0.01 to 0.20
25%Glass filled 2000 PSI
Bronzphite Up to 500F Loads up to 5000 PSI 0.15
Stainless Steel Up to 1500F Loads up to 5000 PSI 0.06 to 0.08 (polished)
Marinite +400F to +800F 100 PSI to 2500 PSI 0.06 to 0.08

Common applications for slide plates include:

  • Bridges: Railroad, Highway, Overpasses
  • Vibration Pads
  • Heat Exchangers
  • Wind Tunnels
  • Transmission Towers
  • Offshore Drilling Rigs
  • Airports
  • Dust Collectors , Overpasses
  • Heavy Machinery
  • Refinery Equipment
  • Air Preheaters
  • Nuclear Applications
  • Storage Tanks
  • Domes

PT&P REF. ORIGINAL POST 07292019

Variable Spring Supports for a Major Pipeline Expansion Project

Ptp Variable Spring 182218

PT&P supplied F-type variable spring supports for a pipeline 1150 km (715 miles) long carrying various kinds of crude and refined products including gasoline, diesel, and jet fuel. By removing the old pipeline and replacing it with a larger diameter pipeline, the capacity of this line tripled the previous capacity allowing for it to carry 85% more of what is transported through British Columbia. This increased, in turn, oil tanker capacity at the terminal seven times.

These spring supports are designed for small movements and operating loads ranging from 15,679 lb. to 19,688 lb. The housing is fabricated from A-36 carbon steel, hot-dipped galvanized, and then painted with 3 different coats (primer, intermediate, and topcoat) of paint to protect against the harsh Canadian winters while providing long-term protection against corrosion. These variables will include PTFE, 25% glass filled, and slide plates welded to the top of the load flange to allow for translational movement. Each spring is load tested and then preset to the specified installed load and inspected for quality assurance before shipment.

Why PT&P? For this particular project, the PT&P team worked with the client through the client’s six-month bidding process on the project. Our unique combination of experience, engineering expertise, and production knowledge enabled customers to secure the project. PTP addressed coating considerations, and technical queries, and met the demanding delivery needs of the project. PT&P’s turnaround time from PO receipt to the material on-site was 10 weeks.

PT&P REF. ORIGINAL POST 02012022

Custom Compact Springs Designed to Support a Storage Tank

PT&P partnered with Disc Spring Technology (DST) and is now manufacturing the compact spring support. Resolve your overloaded pump/ heat exchanger/ vessel nozzle loads with the DST Compact Spring Support. The DST Compact Spring Support is specifically designed to relieve excess loading on process equipment.

Benefits: Minimizes excessive loads on sensitive equipment, same load for smaller working range (25-50% less space), ideal for locating under equipment flanges & reduces design time, maintenance cost, and accidents.

Custom Compact Springs Designed To Support A Storage Tank

Type: Compact Spring Supports
Material: A-36 Carbon Steel | HDG | Stainless Steel
Design: 0.25″ Movement (upward) | 5,000 lb. Load
Testing: Load and Travel Testing

These compact spring supports were custom-designed to support a storage tank at a facility in Texas. The housing was fabricated from A-36 carbon steel and hot-dipped galvanized to protect them against corrosion. The disc springs are engineered using the stainless steel Belleville disc springs designed for large loads but small movements. In this case, the springs are designed to support a load of 5,000 lb. and movement of 0.25" (upward). The installed height can range from 5" to 10" depending on the client-specified load and movement. As a result, compact springs are ideal for "tight spaces" such as modular process skid mounted piping, machinery, and equipment for military and industrial applications. Disc springs can also be installed beneath rotating equipment (such as pumps and compressors) to help reduce or eliminate the transfer of vibration to associated steel and concrete structures. Each of these assemblies underwent load testing and visual inspection prior to shipment.

PT&P REF. ORIGINAL POST 10092017

Glossary of Terms

 

 

Adjustable: Having linear adjustment capability (usually with threads).

Adjustment Device: Components which provide for linear adjustability (e.g.) Turn-buckle, Hanger Rod, Nut, and Load Coupling.

All Thread Rod: A rod threaded its full length. (See Product)

Alloy Pipe Clamp: A Pipe Clamp made from low chrome-moly (less than 5% chrome) materials for the purpose of resisting the effects of piping temperatures in the 750 degrees F. to 1,100 degrees F range. (See Product)

Anchor: A rigid device used to prevent essentially all pipe rotation and displacement at the point of application.

Anchor Bolts: Threaded items used to attach embed plates into concrete on structural supports.

Band Hanger: A Pipe Attachment providing for vertical adjustment, consisting principally of a formed steel strap.

Beam Clamp: A type of forged or fabricated clamp that is used to attach rod hangers to beams by clamping onto the load flange. (See Product)

Big Ton Spring: A multi-spring coil device that lends itself to supporting very high loads and providing a great amount of stability. (See Product)

Bracket: Cantilevered member, with or without a kneebrace, designed to withstand a gravity load and/or horizontal forces.

Bulk Material: Material which has been packaged in a manner in which identical items are grouped together and are identified only by quantity, size and/or manufacturer’s figure number.

“C” Clamp: “C” shaped Beam Clamp which attaches to a flange of a structural member and provides for attaching a threaded rod. (See Product)

Center Beam Clamp: A jaw type Beam Clamp for use with I-beams and wide flange beams which provides a centered beam connection for the remainder of the Pipe Hanger Assembly.

Channel Clamp: A Side Beam Clamp with channel adapter and hook rod, which attaches to the bottom flange of a channel beam and provides a connection for the remainder of the Pipe Hanger Assembly.

Clevis Hanger: A Pipe Attachment providing vertical adjustment, consisting of a clevis type top bolted to a formed steel bottom strap. (See Product)

Cold Piston Setting: An indicated piston position on a Hydraulic Snubber, denoting proper installation setting of the unit with the piping in the cold position.

Cold Setting: The position at which a Spring Hanger or Mechanical Snubber indicator is set denoting the proper installation setting of the unit with the piping in the cold position.

Cold Spring: The act of pre-stressing a piping system during installation in order that the equipment reactions will be lower in the operating condition. This pre-stress is accomplished by the proper closure of the Cut Short gaps.

Completely Engineered Hanger Assembly: Pipe Hanger Assembly which has been designed, detailed and provided with a complete bill of material.

Component: Any of a range of devices which are used to make up a Pipe Hanger Assembly.

Concrete Fastener: A device installed in concrete by means of a drilled hole, to which a pipe hanger can be attached.

Concrete Insert Box: A cast-in-place insert which provides for a rod attachment capable of nominal lateral adjustment.

Constant Support Hanger: A mechanical and spring coil device which produces a relatively constant supporting effect, while permitting vertical pipe movement. (See Product)

Deviation: A term used to describe the accuracy of a Constant Support Hanger which is a measure of the maximum difference between the actual and specified supporting effect, through its travel cycle, expressed as a percentage.

Elbow Lug: A Pipe Attachment welded to an elbow for the purpose of attaching the remainder of the Pipe Hanger Assembly.

Embed Plates: Steel plates sunk into concrete piers used to provide structural support for pipe racks, pipe supports, etc.

Extension Riser Clamp: A Pipe Clamp for the support of vertical piping, whose ears have been extended to permit the transfer of the piping load to a bearing surface upon which the ears of the clamp will rest.

Extension Split Clamp: A Pipe Clamp primarily used on non-insulated piping and provided with a female threaded attachment.

Eye Rod: A Hanger Rod having an end formed in a circular or pear shape, permitting attachment to other components by means of a bolt or pin. The eye may be forged, welded or non-welded. (See Product)

Eye Socket: A device which provides for the attachment of a threaded Hanger Rod to the bolt of another component.

Forged Clevis: A device which provides for the attachment of a threaded Hanger rod to a bolted or pinned connection.

Guide: A device used to permit pipe movement in a predetermined direction while restraining movement in other directions.

Hanger Rod: Round steel bar normally threaded used to connect other components, to make up a Pipe Hanger Assembly. (See Product)

Heavy Bracket: A Bracket used for the support of heavy loads.

Horizontal Traveler: Any device which will permit the upper end of a Pipe Hanger to move in a manner which will accommodate horizontal piping. (See Product)

Hot Piston Setting: The position at which the piston on a Hydraulic Snubber should be with the piping in the hot or operating position.

Hydraulic Snubber: A hydraulic cylinder or rotating vane device used for the control of shock or sway in piping systems, while allowing for normal thermal expansion. (See Product)

Hydrostatic Lock: See Travel Stop.

Hydrostatic Test: A pre-operational test, whereby the piping system is subjected to a pressurized fluid test in excess of the operational pressure to assure the integrity of the system. (See Test)

Hydrostatic Test Load:  A temporary loading condition consisting of a total of the gravitational piping, insulation and test fluid weights for piping systems subject to hydrostatic tests. (See Test)

Insert: A device, embedded in concrete, to which a Pipe Hanger Assembly can be attached.

Insert Nut: A female threaded device which locks into position in an Insert and receives a threaded Hanger Rod.

Instrument Supports: Devices fabricated from small bore piping used to support process instrumentation such as temperature sensors, flow meters, etc. (See Product)

Jacket: A non-load bearing metal covering placed around the insulation to protect it against damage.

Kneebrace: A diagonal structural member used to transfer load or provide stability.

Light Bracket: A Bracket used for the support of light loads.

Limit Stop: An internal device built into a Variable Spring or Constant Support Hanger to prevent the overstressing of the spring coil, over-travel, or release of the load.

Liner: Material placed between pipe and pipe attachment to protect piping from damage or other undesirable effects.

Load Adjustment Scale: A scale used on a Constant Support Hanger to indicate the load adjustment.

Load Bolt or Pin: A bolt or pin which is used to support the weight being carried by the Pipe Hanger Assembly; e.g. the top pin or bolt in a Three Bolt Pipe Clamp.

Load Coupling: An Adjustment Device used to connect the Hanger Rod to a Variable Spring Hanger or Constant Support Hanger.

Load Indicator: The load plate or other means used to indicate the reading on the Load Scale of a Variable Spring Hanger.

Load Scale: A scale attached to a Variable Spring Hanger to provide a means of indicating the supported load.

Load Variation: A term associated with Variable Spring Hangers used to describe the difference in supporting effect between the hot and cold elevations of the support point.

Mark Number: A unique number used to identify pipe hangers.

Mechanical Snubber: A mechanical device used for the control of shock or sway in piping systems, while allowing for normal thermal expansion. (See Product)

Medium Bracket: A Bracket used for the support of moderate loads.

Multiple Support: A Pipe Hanger Assembly consisting of a common cross member used to support parallel run or banks of piping.

Non-Metallic Wear Pad: A sacrificial plate used to prevent damage to the pipe by absorbing the frictional load caused by the movement of pipe on structural steel. (See Product)

Offset: A relative displacement between the Structural Attachment and Pipe Attachment, which may be incorporated into the design of the Pipe Hanger Assembly to accommodate the piping movement.

Pipe Attachment: Any device used to connect the pipe to the remainder of the Pipe Hanger Assembly.

Pipe Clamp: A bolted Pipe Attachment which clamps around the pipe to connect the pipe to the remainder of a Pipe Hanger Assembly. (See Product)

Pipe Clip: A Pipe Attachment used to hold the pipe directly to a structure, also referred to as a strap or pipe strap.

Pipe Covering Protection Saddle: A device used to prevent damage to the insulation at the support point. (See Product)

Pipe Hanger: A device which is suspended from a structure and is used to carry the piping load in tension.

Pipe Hanger Assembly: A general term used to describe a series of assembled components which make up a Pipe Hanger, Pipe Support, Restraint, Anchor, Guide, etc.

Pipe Hanger Cold Load: Loading at ambient temperature, resulting from the use of Variable Spring Hangers in the support of a piping system. The cold load equals the operating load plus or minus the Load Variation.

Pipe Hanger Cold Spring Load: An additional force that may occur at a support point as a result of the Cold Spring of a piping system.

Pipe Hanger Deadweight Load: Loading condition which considers only the dead weight of the piping, insulation, and contents.

Pipe Hanger Design Load: The combination of operating and other loads as defined by job specification.

Pipe Hanger Friction Load: Loading as a result of frictional forces due to sliding surfaces.

Pipe Hanger Hot Load: Operating load on a Variable Spring Hanger (normally represents deadweight under operating conditions.)

Pipe Hanger Seismic Load: Temporary loading associated with the occurrence of an earthquake.

Pipe Hanger Thermal Load: Loading introduced by the restraint of a piping system against thermal expansion or contraction.

Pipe Hanger Water Hammer Load: Temporary loading resulting from a change in the flow rate of the piping contents.

Pipe Roll: A roller device used to support horizontal piping and provide for axial movement.

Pipe Saddle Supports: A Stanchion utilizing a curved section for cradling the pipe. (See Product)

Pipe Shoe: Normally a Tee section attached to the pipe to transmit the load or forces to the adjacent structure. (See Product)

Pipe Slide: A device consisting of a Pipe Attachment and a Slide Plate, to accommodate horizontal pipe movement.

Pipe Support: A device by which piping is carried from beneath and is used to carry the piping weight in compression.

Plate Lug: An attachment welded to a structural member or piping, to provide for a pinned or bolted connection to the remainder of a Pipe Hanger Assembly.

Protection Saddle: See Pipe Covering Protection Saddle. (See Product)

Protection Shield: A metal shield used to maintain the integrity of the Vapor Barrier and/or protect the insulation at support locations. (See Product)

Restraint: Any device which prevents, resists or limits the free movement of the piping.

Restraining Control Device: Any hydraulic, mechanical, spring, or rigid device used for the control of shock and sway in piping systems.

Rigid Hanger: A Pipe Hanger which does not permit vertical movement.

Rigid Support: A Pipe Support which does not permit vertical movement.

Riser: Any vertical portion of a piping system.

Riser Clamp: A Pipe Clamp for the support of vertical piping having separate Load Bolts, to transfer the piping load to the remainder of the Pipe Hanger Assembly. (See Product)

Rod Coupling: A tapped device used to join two threaded rods.

Rod Hanger: An adjustable vertical assembly consisting of a Structural Attachment, Hanger Rod (with or without intermediate components), and Pipe Attachments. (See Product)

Roll Stand: A pipe roller mounted in a stand, used to support horizontal piping from beneath and providing for axial movement.

Roll and Plate: A pipe roller and bearing plate used for minimal axial movement where no vertical adjustment is necessary.

Roll Hanger: A Pipe Attachment which utilizes a pipe roller for axial movement and is used in a Suspension Hanger.

Roll Plate: A flat device which provides a bearing surface for a pipe roll.

Saddle: See Pipe Covering Protection Saddle. (See Product)

Semi-Engineered Hanger Assembly: A Pipe Hanger Assembly which has been indicated on a piping drawing and has been designated as a specific type; i.e. rigid, spring, etc. with Spring Hangers indicating load, movement, spring type and size. This hanger assembly is field fabricated utilizing Bulk Material where applicable.

Shear Lug: A welded Pipe Attachment subjected primarily to shear stress, transferring axial pipe load to the supporting member.

Shield: See Protection Shield.

Side Beam Bracket: A Bracket provided with a hole in the vertical leg for bolting to the building structure and a hole in the horizontal leg to receive a threaded Hanger Rod.

Side Beam Clamp: A Beam Clamp that attaches to a flange of an I-beam or wide flange beam and provides an off-center attachment for the remainder of a Pipe Hanger Assembly.

Single Pipe Roll: A Pipe Attachment which utilizes a Pipe Roll for axial movement and is used in a Trapeze Hanger or Support.

Sleeper: A horizontal beam, usually located at grade, upon which horizontal pipe runs are supported.

Slide Plate: A flat plate whose surface has been prepared in a manner which will facilitate a sliding motion. (See Product)

Sliding Support: A device providing support from beneath by offering no resistance, other than frictional, to horizontal movement.

Snubber: A hydraulic, mechanical, or spring device used for the control of shock and sway in piping systems. (See Product)

Spider Guide: A Pipe Attachment for insulated piping used for maintaining alignment of piping through its axial expansion and contraction cycles. (See Product)

Split Ring: A Pipe Clamp used on non-insulated piping, provided with a hinge which permits installation before or after the piping is in place.

Spring Cushion Hanger: A simple, non-calibrated, single rod spring support, used for providing a cushioning effect.

Spring Cushion Roll: A pair of spring coils with retainers, for use with a Single Pipe Roll.

Spring Hanger: A Pipe Hanger, using a spring or springs, to permit vertical movement in a piping system. (See Product)

Spring Snubber: See Spring Sway Brace. (See Product)

Spring Sway Brace: A spring device used for the control of vibration or shock, or bracing against sway in piping systems. (See Product)

Stanchion: A Pipe Support using a vertical member in compression.

Steel Clevis: A forged or fabricated device used to fit over a welding lug in the attachment of a pipe to a structural support. (See Product)

Stop: A device used to limit pipe movement in a specific direction.

Structural Attachment: A device used to connect the remainder of the Pipe Hanger Assembly to the structure.

Strut: A rigid tension/compression member. (See Product)

Sway Brace: See Restraint Control Device. (See Product)

Swivel Turnbuckle: A device which provides flexibility at the pipe connection, in addition to linear adjustment for Suspension Hanger.

Three Bolt Pipe Clamp: A Pipe Clamp normally used for horizontal insulated piping, which utilizes clamping bolts to attach the clamp to the pipe and a separate Load Bolt to transfer the piping weight to the remainder of the Pipe Hanger Assembly from a point outside the insulation. (See Product)

Top Beam Clamp: A Beam Clamp which attaches to the top of a structural beam and provides an attachment to the remainder of the Pipe Hanger Assembly from the side of the beam.

Trapeze Hanger: A Pipe Hanger consisting of parallel vertical rods which are suspended from a structure and connected at their lower ends by a horizontal member from which the pipe is supported. Some of its uses are for clearing overhead obstructions or where insufficient vertical space is available to accommodate a single Suspension Hanger.

Travel Indicator: For Constant Support Hangers, a device attached to a moveable arm of a Constant Support Hanger, used to indicate the reading on the Travel Scale in order to show the vertical pipe movement. For Variable Spring Hangers, the spring load plate which indicates the reading on the Load/Travel scale in order to show the vertical pipe movement.

Travel Scale: A device attached to a spring unit, whose purpose is to provide for an indication of the vertical pipe movement.

Travel Stop: A device which temporarily locks the moveable parts of a Spring Hanger in a fixed position, enabling a load to be transferred through the Spring Hanger to the supporting structure while maintaining the piping at a desired elevation during erection and/or Hydrostatic Testing.

Turnbuckle: A device with one left-hand female threaded end and one right-hand female threaded end, used to join two threaded rods and provide linear adjustment. (See Product)

U-Bolt: A U-shaped rod with threaded ends, that fits around a pipe and is attached to a supporting member. (See Product)

Vapor Barrier: An uninterrupted covering for an insulated pipe to preclude the introduction of moisture into the insulation.

Variability: The Load Variation of a Variable Spring Hanger divided by the Hot Load expressed as a percentage.

Variable Spring Hanger: A spring coil device which produces a varying supporting effect while permitting vertical pipe movement. (See Product)

Welded Beam Attachment: A u-shaped flat bar device, normally welded to a steel beam used to connect the remainder of a Pipe Hanger Assembly. (See Product)

Welded Pipe Attachment: A Pipe Attachment which requires welding to the pipe in order to connect the pipe to the remainder of the Pipe Hanger Assembly. (See Product)

Welding Lug: A steel device that is welded to supports or structural steel to allow for the suspension of pipe using rod hangers. (See Product)

Weldless Eye Nut: A forged steel device which provides for the attachment of a threaded Hanger Rod to a bolt or pin connection. (See Product)

Wide Flange Beam Clamp with Links: A steel Beam Clamp for the suspension of pipe loads from structural beams.

Yoke U-Bolt: A type of clamp that includes a u-shaped rod with threaded ends, that fits around a pipe and is recommended for the suspension of high-temperature piping. (See Product)

Mechanical Snubbers Designed for an Industrial Chemical Plant in Brazil

Mechanical Snubbers Designed For An Industrial Chemical Plant In Brazil

Type: Mechanical Snubbers
Size: Length: 40-3/8” to 60-3/4″
Material: Carbon Steel | Hot-dipped Galvanized | Paint
Design: 1,000 lb.  – 6,000 Load | Stroke: 4″ – 5″

Mechanical snubbers are designed to allow pipe deflection in tension or compression when operating under normal conditions, but if an impulse load occurs (such as a water hammer, earthquake, wind, or other transient forces), the snubber becomes activated and acts as a rigid restraint to limit pipe movement. So, in general, mechanical snubbers t have two modes of operation. In passive mode, the resistance mechanism is disengaged and the snubber “free wheels” with very low resistance. In active mode, the mechanism is engaged, and the snubber limits the acceleration to a low threshold value, becoming a rigid restraint. Mechanical snubbers are used in nuclear, geothermal, and other green energy plants, as well as, the traditional chemical, refinery, and power plants. Our superior design combined with rugged construction and corrosion-resistant parts makes these units extremely reliable for a wide range of loads and movements. Typically mechanical snubbers require no maintenance. Our team of engineers can also custom design and test snubbers to accommodate your unique application.

For this particular project, in addition to the mechanical snubbers, we also supplied pre-insulated cold supports, constants, variables, and rod hangers which were delivered ahead of schedule to meet the client’s delivery needs. PT&P and its subsidiaries design and manufacture the largest range of products for piping systems globally. With today’s supply chain considerations, projects can mitigate risk by working with a single strategic supplier and ensuring timely project completion and success. Our approach is unique. The key factors are our focus on the following:

  • Systems – Proprietary systems allow PT&P to manage complexity
  • Engineering – 10 Industrial Engineers in Production
  • Automation – extensive investment in automation
  • Quality – IS0 9001 certified with a large QA team
  • Training – programs to grow personnel to highly artisan/skilled functions (e.g. TIG Welding Gauge Material)
  • Scale – 500+ Production Employees and over 10% of the team are engineers
  • Experience – 40+ years with 5M+ products in service

PT&P REF. ORIGINAL POST 07152022

Big Ton Spring Supports Designed for an LNG Facility in Australia

Big Ton Spring Supports Designed For An Lng Facility In Australia

These big ton variable spring assemblies were custom designed for an LNG plant in Western Australia. They were specially designed with PTFE, 25% glass-filled slide plates, and will be used to both support the vertical load and allow thermal growth of horizontal pressure vessel saddle supports. These units measure 30″ x 30″ and are capable of supporting a load up to 95,000 lb. with down travel of 2 to 5mm vertical.

Horizontal pressure vessels are used in a wide range of industries as storage containers, separation tanks, or settling drums. Our Big Ton springs have also been designed and manufactured to support very large Gasifiers. These units mix air, steam, and coal under high temperatures/pressures to produce syngas which is considered a source of renewable energy because it’s more efficient than direct combustion of the original feedstock (coal) since it can be combusted at higher temperatures so that the thermodynamic upper limit produces better efficiency.

As one of the first companies to design, manufacture, and test big tons, we possess the engineering expertise, testing, and “know-how” in order to meet or exceed many of our client’s expectations. Our exceptional design team is able to build 3D models and perform FEAs in order to ascertain optimum designs for big tons for given applications.

PT&P REF. ORIGINAL POST 02092016

Hold-Down Pipe Clamps Designed for a 36″ Diameter Natural Gas Pipeline

Hold-Down Pipe Clamps Designed For A 36&Quot; Diameter Natural Gas Pipeline

Type: HD-2 Hold-Down Pipe Clamps
HD Size: 36″ Dia. x 12″ W x 8-7/16″ H
Wedge Size: 23-3/16″ L x 6″ W
Material: Carbon Steel | PTFE
Testing: Standard Q.C. Tests

PT&P designed 50 HD-2 hold-down pipe clamps with pipe wedges for a natural gas pipeline in Texas. They were fabricated from carbon steel and include PTFE slide plates. The hold-downs are designed for a 36" pipeline, and are 12" wide by 8-7/16" tall. The wedges are 23-3/16" long by 6" wide. They are designed for an operating temperature of 400°F and have an adjustable height. Standard quality control tests were performed prior to shipment.

The natural gas pipeline network in the United States is indeed extensive, with over 3 million miles of pipelines crisscrossing the country. These pipelines play a crucial role in transporting natural gas from production sites, such as gas wells and processing plants, to distribution centers and ultimately to consumers, including both commercial and residential users. This vast network ensures that natural gas, an essential energy source for heating, cooking, and electricity generation, reaches homes and businesses across the nation reliably and efficiently.

At Piping Technology and Products, we specialize in custom designed Hold Downs meeting the requirements for a large array of clients. Hold down clamps are a versatile pipe support used in various industries and applications to secure pipelines and they play a crucial role in ensuring workpiece stability, precision, and safety across a wide range of processes in the chemical, refinery, power plant industries.

PT&P REF. ORIGINAL POST 04082019

U-Type Constant Spring Supports Designed for an LNG Plant in Canada

U-Type Constant Spring Supports Designed For An Lng Plant In Canada

PT&P designed U-Type constant spring supports for an LNG plant in Canada. These are horizontal constants designed to support piping from below where the base plate is bolted directly to the top of the steel or the foundation using anchor bolts. These specific constant springs are designed to support an operating load of 67,420 lb. with 6″ of total upward travel. The constants are fabricated from galvanized carbon steel for protection against corrosion. Standard load and travel testing were completed to ensure the quality and performance of these constants.
U-Type constant springs are commonly used in industrial applications where there is a need to support pipelines, ducts, or other structures subjected to thermal expansion or contraction. These springs are designed to provide a constant supporting force over a defined range of movement, typically in response to temperature changes. Here are some specific applications where U-Type constant springs might be used:

  1. Piping Systems: In industrial plants, refineries, chemical processing facilities, and power plants, pipelines are often subjected to temperature fluctuations due to the flow of hot fluids. U-Type constant springs can be employed to support these pipelines and compensate for thermal expansion or contraction, preventing excessive stress on the piping system.
  2. HVAC Systems: Heating, ventilation, and air conditioning (HVAC) systems often involve ductwork that expands and contracts with changes in temperature. U-Type constant springs can be installed to support HVAC ducts and accommodate thermal movements, ensuring structural integrity and preventing damage.
  3. Steam Systems: Steam distribution systems in industries such as power generation, food processing, and manufacturing also require support for piping subjected to thermal expansion. U-Type constant springs are used to maintain proper alignment and support in steam piping systems, preventing issues such as pipe stress and misalignment.
  4. Oil and Gas Pipelines: In the oil and gas industry, pipelines are essential for transporting crude oil, natural gas, and petroleum products over long distances. U-Type constant springs help support these pipelines and compensate for temperature changes, ensuring the reliability and safety of the transportation infrastructure.
  5. Process Equipment: Various types of process equipment, such as reactors, heat exchangers, and vessels, experience thermal expansion and contraction during operation. U-Type constant springs may be employed to support and compensate for the movement of such equipment, reducing the risk of damage and prolonging service life.

U-Type constant springs play a crucial role in maintaining the structural integrity and reliability of industrial systems and equipment subjected to thermal expansion or contraction.

Constant springs are sometimes installed near rotating equipment such as pumps and compressors used in manufacturing, mining operations, utilities, oil and gas extraction, and cross-country pipelines. By providing constant support to piping leading to rotating equipment subject to both vertical and horizontal movement, these types of spring hangers help to decrease stresses imposed on rotating equipment, thereby extending the life of the bearings and seals within these units.

In our continued efforts to meet projects needs for operationally best in class design with the lowest cost and time to market we created the world’s smallest constant spring support.

Nano Constant
We have designed and built constants for not only refineries, LNG, geothermal plants, petrochemical plants, and renewable energy facilities. The use applications include coker replacement, debottlenecking of furnace operations, installation of a new VDU (vacuum distillation unit) heater, tube, and heater replacement, and flare gas recovery units where the installation of constant spring hangers helped to improve the efficiency of the system or process.

Constant spring supports alongside our portfolio of products are shipped worldwide from our Houston, Texas headquarters, where all our products are manufactured. We are open for plant tours. If you are interested, please let us know so we can schedule some time with your team.

 

PT&P REF. ORIGINAL POST 05102016

Variable Spring Support with Bronzphite® Slide Plates for a Facility in Canada

Variable Spring Support With Bronzphite® Slide Plates Designed For A Facility In Canada

PT&P manufactured these F-type variable spring supports for a facility in Canada. The springs are fabricated from A36 carbon steel with a hot-dipped galvanized finish. The variables installed heights range from 11" to 15" and are designed for operating conditions up to 4,000 lbs. Bronzphite® is best suited for high loads, low-velocity applications and where the use of oil or grease is undesirable or not feasible. The bronze plate acts as the bearing surface, withstanding heavy loads, while the graphite inserts provide a solid, oil-free lubricant. Type F base springs are not typically designed for lateral loads, so slide plates such as Bronzphite® are employed to reduce the stress that could be imposed on the spring and pipeline by reducing the sliding friction between the spring’s load flange and the pipe shoe, trunnion or supporting steel. Also added to these springs are Internally Guided Load Columns which provide additional support for lateral loads. As with all of our variable supports, these were quality-checked with a 100% spring coil deflection test and a load cell calibration to set the assembly at the prescribed installed load.

PT&P REF. ORIGINAL POST 05232016

54" Dia. Pre-Insulated Pipe Shoes Custom Designed for a Pipeline in Texas

54&Quot; Dia. Pre-Insulated Pipe Shoes Custom Designed For A Pipeline In Texas

Pipe Shields/PT&P designed and manufactured pre-insulated pipe shoes for a 54″ diameter pipeline in a propane dehydrogenation unit within a chemical processing plant in Texas. The hot shoes are custom-designed with a wide base along with slide plates to accommodate lateral movement and axial movements of +/- 4 1/2″. We designed the hot shoes to include additional bolting along with bolting torque recommendations in order to help prevent slippage of the pipe inside the pipe shoe. We designed the supports to accommodate vertical loads up to 22,200 lb. and temperatures up to 1800°F. The outer part of the shoe was manufactured of hot-dipped galvanized carbon steel while the inner insulation material is 4″ thick high-density calcium silicate insulation.

Here’s a breakdown of their key purposes:

  1. Load Bearing and Movement: Insulated pipe supports are designed to carry the weight of the pipe while also accommodating necessary movement. This is important to prevent stress on the piping system and ensure its longevity.
  2. Insulation: In areas where regular pipe insulation cannot be installed, such as at support points, high density insulated pipe supports can both support the vertical load while providing a layer of insulation. This helps to maintain the temperature of the fluid flowing through the pipes and minimizes heat loss.
  3. Cost Efficiency: By reducing heat loss and minimizing the need for additional insulation materials, insulated pipe supports can help minimize the overall cost of field installation. Additionally, their pre-assembled nature saves installation time, further contributing to cost efficiency.
  4. Non-Welded Design: Unlike traditional supports that may require welding to attach to the pipe, insulated pipe supports are not welded. This simplifies installation and reduces the risk of damage to the pipe or insulation during the installation process.
  5. Shipment as Fully Assembled Units: Insulated pipe supports are typically shipped as fully assembled units, except for certain types like riser supports and anchor supports, which may require some welding during installation. This pre-assembly reduces the need for on-site assembly and ensures consistency in quality across installations.

Overall, insulated pipe supports offer a comprehensive solution for maintaining thermal efficiency, structural integrity, and cost-effectiveness in piping systems.

PT&P REF. ORIGINAL POST 02242015

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