Custom High-Temperature Insulated Pipe Supports with Rollers for a Vaporizer

March 21, 2023

Custom High-Temperature Insulated Pipe Supports With Rollers For A Vaporizer

Pipe Shields, Inc., a division of PT&P custom-designed insulated pipe supports with rollers for high-temperature pipelines for a Vaporizer located in Malaysia. The “hot shoes” are fabricated from A36 carbon steel and include FireTemp 28 PCF & 18 PCF. The supports are 79” OD x 18” long x 87” high and designed with Hilman rollers for supporting the pipe from below while allowing it to move axially with minimum friction. Quality control inspections were performed before shipping.


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Constant Assemblies Custom-Designed for Hot Service at a Leading Plastic Manufacturing Plant in North Carolina

February 28, 2023

Constant Assemblies Custom-Designed For Hot Service At A Leading Plastic Manufacturing Plant In North Carolina

Type: Custom-Designed Constant Spring Supports
Size: PTP-100 B-Type | 16” x 24” x 30”
Material: A36 Carbon Steel | Hot-dipped Galvanized| Epoxy Coating
Design: Load Range: 2,280 lb. to 7,143 lb. | 2″ Total Travel
Testing: Q.C. Inspection | Load and Travel Tests

PT&P custom-designed Constant Spring Support with travel stop adjustment rods for a manufacturing company. We “re-created” the design of constants sold years ago by our now sister company, Fronek Anchor/Darling. The constants needed to fit the “envelope” or space of the original constants sold to this client for an application in an existing plant. The constants were fabricated from A36 carbon steel, hot-dipped galvanized, and painted with an epoxy coating. The assemblies are designed for an operating load ranging from 2,280 lb. to 7,143 lb. with 2″ of total travel. Standard load and travel test and Q.C. inspections were completed prior to shipment to North Carolina.

We have a great deal of experience manufacturing constant spring supports similar to that of existing constants if needed to fit existing space limitations. We can also refurbish constants manufactured by competitors if the units are repairable. So whether the constants are for large duct systems in power and refining plants or focused around renewable, carbon-neutral plants, we can assist our clients to find a cost-effective solution.


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PT&P’s Smart Maintenance Solutions

February 24, 2023

Field Service
Smart Maintenance Solutions

  • 40+ Years of Manufacturing & Field Services
  • 3 Million Pipe Supports Installed Globally Today
  • 1000+ Audits Done for Pipe Supports & Expansion Joints
  • World’s 1st Use of Sensors/A.I. to Pipe Supports
  • 50+ Pipe Support & Expansion Joint Design & Stress Engineers

PT&P In Action


PT&P In Action


Field Services was called out to consult on how to properly support a high temperature line with extreme movement at a coal refinery.

Clamp on pipe shoe was replaced 60 feet off the ground on a critical line at a LNG plant in Florida.



A Texas chemical plant sent us their old expansion joint to be replaced with a new one reusing the existing flanges for ease of installation. 


A local refinery asked for our help to size and replace another manufacturer’s failed spring hanger for a PTP equivalent in under 24 hours.


An Oklahoma Coal Power Plant contracted Field Services to install a few 54,000 lb capacity Constant Spring hangers 250 feet up on the unit where a crane could only get so close.


A proactive pipe support inspection was done before a major turnaround in Illinois, which saved them from a few major issues.

After a hurricane in Southern Louisiana, a few of our snubbers were inspected for fluid leaks and visible damage, all passed.



This Field Engineer collected information from a coal dust covered tag so that he could replace it with a PTP equivalent.

What We Do


  • Audit
  • Installation / Repair
  • Isometrics and Database
  • Troubleshooting
  • Stress Analysis & FEA
  • Turnaround Planning
  • Reverse Engineering
  • Testing**

Products Supported

  • Snubbers
  • Variables
  • Constants
  • Expansion Joints
  • Hot & Cold Shoes
  • Sway Braces
  • *All Brands Supported

**Burst Testing, Helium Testing, Cycle Testing, Load Testing, Snubber Testing, Hydro-Static Testing, Bellows Fatigue Testing, Bellows Leak Test, Pneumatic Testing, Spring-rate Testing, Ultrasonic Testing, Radiography Testing, Magnetic Particle Testing, Liquid-Penetrant Inspection, Positive Material Identification (PMI)

Expertise & Service

  • 24×7 Globally
  • Field Team with Over 150 Years of Experience
  • Access to 50+ Design Engineers
  • 500+ Production Experts
  • Grade A Safety Record
  • Knowledge Base of 1000+ Audits

Who We Serve

  • All Major Petro-Chemical
  • Power Generation
  • Industrial Food Production
  • Semiconductor
  • Automotive
  • Military & Defense
  • Shipping

PT&P has serviced customers in 41 countries


Unparalleled Value

  • On-Site Support for less than $75/day with Our Smart Maintenance Plan
  • More than 30% of Critical Pipe Support Issues Missed by Generalist Engineers/Inspectors
  • Over 80% of Unplanned Outage due to Pipe Supports Failure Resolved within 48 hours
  • Over 20,000 Client Maintenance & Engineering Personnel Trained
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Bronzphite® Slide Plate Assemblies Designed for an Oil Refinery in Canada

February 21, 2023

Bronzphite® Slide Plate Assemblies Designed For An Oil Refinery In Canada

Type: Bronzphite® Slide Plate Assemblies
Size: 1/2” x 4” x 4” | 1/2” x 7-1/2” x 7-1/2”.
Design: 1100°F Operating Temperature | 5000 PSI Load
Material: HDG Carbon Steel | Bronzphite®
Testing: Visual & Dimensional Tests

Piping Technology & Products, Inc. manufactured Bronzphite® slide plate assemblies for an oil refinery in Canada. The Bronzphite® is used as the lower slide plate bearing surface and measures 1/2″ x 4″ x 4″, and the carbon steel backing plates are 1/2″ x 7-1/2″ x 7-1/2″. The upper slide plate material is polished stainless steel. Bronzphite consists of a bronze plate that utilizes graphite inserts. Bronze is used because of its hardness and load-carrying abilities. The graphite “crumbles” when the load or weight of the equipment is placed on top of the slide plate assembly. This produces a thin film of graphite which acts as an oil-free lubricant between the lower bronze slide plate and upper stainless steel slide plate. The graphite greatly reduces friction between the two surfaces. The assembly is designed for an operating temperature of up to 1100°F, with an operating load of up to 5,000 PSI. Standard visual and dimensional tests were performed prior to a two-week delivery.

Piping Technology & Products and its subsidiaries are poised and ready to meet your project needs in their entirety. We design and build slide plates and an extensive range of additional products. We offer the largest and most comprehensive offering of products and services globally with US-based manufacturing for all your piping system considerations. Our foundation is based in oil, gas, power, and petrochemical; however, we work with mining, automotive, life sciences, data center, semiconductors, packaging, wood processing, and lumber plants serving over 50% of the S&P 100. We have been able to consistently match customer need dates to our production capabilities by utilizing our local engineering and manufacturing teams and our 24/7 2-shift operations and leveraging our 47-year history of experience and industry know-how. Bronzphite® slide plate assemblies


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Variable Springs with Clevis Hangers for an Ethylene Cracker Plant

January 31, 2023

B-Type Variable Spring Supports With Clevis Hangers For An Ethylene Cracker Plant In Texas

Type: Variable Spring Supports with Clevis Hangers
Material: A36 Carbon Steel | 304 Stainless Steel
Design: 800°F | 619 lb. Ld. | 0.5″ Up Travel
Testing: Load and Travel Tests

Piping Technology & Products designed these B-Type variable spring supports with clevis hangers for an ethylene cracker plant in Texas. Interestingly enough, we recently supplied over 50,000 supports to one of the largest ethane cracker polymer plants in the US, which was completed last year. In addition to variables, we supplied slide bearing plates, hot and cold insulated shoes/supports, snubbers/sway braces/sway struts, pipe hanger hardware, expansion joints metal bellows, rectangular & circular spacers, davit arms, welded pipe shoes, rod hanger assembly, and wear Pads

On this client order, the variable spring supports, threaded rods, and hex nuts were fabricated from A36 carbon steel, and the clevis hangers from 304 stainless steel. The assemblies are 83-1/8″ in length, and the spring size is 6-80-B. They are designed for an operating temperature of 800°F, an operating load of 619 lb, and 0.5″ of movement. Standard load and travel tests were performed prior to shipment.


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B Type & C Type Constants for an Oil Refinery in Louisiana

January 3, 2023

B Type &Amp; C Type Constants For An Oil Refinery In Louisiana

Type: B-Type & C-Type Constant Spring Supports
Size: 12″ x 18″ x 20″ to 12″ x 12″ x 32″
Material: A36 Carbon Steel | Hot-dipped Galvanized
Design: Operating Load Range: 475 lb. to 1,250 lb.
Movement of 2-1/4″ to 5″
Testing: Q.C. Inspection | Load and Travel Tests

PT&P fabricated multiple B-Type and C-Type constant spring supports for an oil refinery in Louisiana. The constants are fabricated from A36 carbon steel and hot-dipped galvanized. The dimensions range from 12” x 18” x 20” to 12” x 12” x 32”. The operating load range is 475 lb. to 1,250 lb. with movement of 2-1/4” to 5”. Standard load testing was completed to ensure quality and performance.


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High-Temperature Pre-Insulated Pipe Support for a Chemical Plant

December 20, 2022

Custom High-Temperature Pre-Insulated Pipe Support For A Chemical Plant

This custom-designed insulated pipe support will be used for a high-temperature pipeline at a chemical plant in Canada. This Hot Shoe was customized without the u-base and modified with an extended length. It will be used to prevent the movement of a 6″ diameter pipe in the axial direction. Axial stops will be welded to the clamp O.D. in the field. The plates are 11-5/8″ O.D. x 48″ in length and fabricated from A36 carbon steel. The insulation is 2″ thick high-density calcium silicate and well-suited for temperatures up to 1200°F. A hot shoe is a pipe support that can be used for high-temperature applications, such as high-pressure steam lines or boiler feed water, where heat loss through the pipe support is not desirable. Insulated Hot Shoes can be designed and used for temperatures up to 1400° Fahrenheit.


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Furnace Applications – Spring Supports, Expansion Joints & Furnace Seal Bags

December 6, 2022

Ptp Furnace Application Products

An industrial furnace, also known as a direct heater or a direct-fired heater, is a device used to provide heat for an industrial process. Furnace designs vary as to their function, heating duty, type of fuel, and method of introducing combustion air. Heat is generated by an industrial furnace by mixing fuel with air or oxygen, or from electrical energy. The residual heat will exit the furnace as flue gas. Types of industrial furnaces include batch ovens, vacuum furnaces, and solar furnaces. Industrial furnaces are used in applications such as chemical reactions, cremation, oil refining, glasswork, metallurgy, mechanical engineering, chemicals, ceramic, and building materials. Industrial furnaces using fossil fuels are characterized by heat losses from flue gases with a temperature of 500°C and above.

PT&P supplies many products that are well-suited for furnace applications. The first category we’ll take a look at is Engineered Spring Supports. We size furnace springs the same way as we would for a conventional variable or constant spring support. Construction may include a welded design instead of bolted and custom nameplates with the test data and ID tag. Most furnace spring supports are coated with red oxide primer to avoid potential hazards when exposed to high temperatures.

Ptp Furnace Application Variables In Service Combined

PT&P specially designed and fabricated hundreds of altered Type A Variable Spring Hangers in order to accommodate the special travel and spring rate needed to support the furnace tubes of a hydrogen reformer in Venezuela. In order to accommodate customer-specified travel and spring rate, modified spring coils were required. With a travel of 8-7/8″, the variable spring hanger casing lengths were increased from the standard size of 32″ to over 6′ long. The calculated spring rate is 79 lb/sq in for an operating load of 2,804 lb. and an installed load of 3,505 lb. The housings are coated with heat-resistant paint, which protects the spring coils from corrosion and high temperatures in the furnace area.

Expansion Joints are not installed inside furnaces due to the extremely high temperatures of the environment and the piping system. Expansion joints will typically be found on the duct work and in the piping coming in and out of the furnace. In the last six months, we have shipped over 40% of our expansion joint jobs in less than 2 weeks to meet customer project deliverables.
Fabric Expansion Joint Application

Fabric Expansion Joints that are in-service near furnaces, typically include a 3-layer belt consisting of Silicone, Fiberglass, PTFE, and Mineral Wool Insulation. The configurations are either round, rectangular or square as seen in the examples below.

Ptp Furnace Application Products

Furnace Bags are used to seal high-temperature tubes that penetrate the furnace floor. The furnace bag consists of multiple layers of flexible, flame and heat resistant, impervious fabric designed to operate from start-up to high-temperature design conditions. The bag will expand and contract with the varying furnace temperatures.

Furnace Bag

Stainless steel clamps or band straps connect one end of the pipe that goes through the penetration opening and the other to another sleeve in the furnace floor. A tapered steel coil is installed around the conduit inside the bag to prevent the fabric from collapsing inward during vacuum conditions. PT&P’s standard furnace seal bag is nickel reinforced, with a special coating that reduces airborne fibers and increases tensile strength.


Furnace Application Diagram


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PT&P Manufactures and Installs an 85 ft. Pipe Rack and Pipe Spools

November 22, 2022

PT&P supplied “on-time delivery” of two industrial structural steel pipe racks and the accompanying pipe spools that would be attached to storage tanks measuring approximately 120 ft. in diameter and over 85 ft. tall. Pre-Engineered Pipe Racks attached to storage tanks are used in a wide range of industries from Waste Water Treatments plants, Community Water Storage Tanks, to Above Ground Storage Tanks used in Refineries, Natural Gas, and Petrochemical plants.

PT&P leveraged its breadth of manufacturing and engineering capabilities to reduce costs for its client in the deployment of this Pipe Rack. Our focus was to complete as much work as possible in our production facility, where costs are typically far lower than in the field. We made adjustments to the design to aid in-field deployment to minimize total overall costs. This project also leveraged our capabilities with structural steel, pipe spools, TPI, and insulation. We have all of these capabilities in-house, which made it easy to fabricate the complex structures in this project.

Each pipe rack had an overall dimension of 12 ft. wide and 113 ft. tall and was fabricated from carbon steel. Due to the overall length, each frame was fabricated in two sections in our shop in order to transport each to the job site. Additionally, each frame was provided with lifting lugs designed by PT&P to facilitate both, the transporting of each frame half-section and the subsequent vertical lift of each completed unit. Each pipe rack was fitted with 9 pipe spools ranging in diameter from 2″ to 12″ (6 were insulated pipe spools, and 3 were non-insulated pipe spools). The pipe material used to fabricate the pipe spools were SA-53, SA-106, and SA-333.

Six of the pipe spools were supplied pre-insulated. At the ends of each section of the pipe spool, there were bare sections of pipe where PT&P Field Service would later perform “tie-in welds” in the field.

Ptp Pipe Racks Large Tank Installation 181868 500Pxw

After completing shop fabrication, the pipe racks were prepared to be transported to the job site location for final assembly before installation by PT&P Field Services. This consisted of bolting the two halves of the pipe rack together and completing the “tie-in welds” at each pipe spool connection. All of the “tie-in welds” were examined and verified by X-ray analysis. After completion of all the “tie-in welds”, PT&P Insulation Department installed insulation in the field on the 6 pipe spools requiring insulation at these connection points.

Ptp Rod Hangers 181868
Rigid Rod Hangers

Each section of the pipe spool was supported from the top of the rack by a rigid rod hanger also supplied by PT&P. Rod hanger assemblies are round steel bars normally threaded and used to connect other components, such as pipe support hardware, to make a pipe hanger assembly. PT&P’s field service team installed the main pipe rack with seven pipe spools each over 86 ft. long on large storage tanks. The pipe spools were positioned on the pipe rack steel using special U-bolts to “guide” the piping.

U-bolts are u-shaped rods with threaded ends that fit around a pipe and are attached to a supporting member. These U-bolts were coated in plastic to prevent corrosion between the pipe and the U-bolt material. Additionally, Thermal Plastic Isolators (TPI) were also used to prevent corrosion between the pipe rack steel and the pipe spools. TPI can be customized in height, width, length of TPI, hole sizes, hole locations, and special shapes.

Tpi Pipe
U-Bolt with TPI
Frp Wear Pads 143770
FRP Wear Pads

Also installed on the Insulated pipe spools were FRP wear pads that rested on the thermoplastic Isolator. FRP is also known as non-metallic wear pads, which are used for corrosion protection for uninsulated piping systems to extend the life of the pipe.

Ptp Pipe Racks Large Tank Installation Layout 600Px

After assembly by PT&P Field Service, each complete unit was lifted vertically into position and bolted to the storage tank at the “tank connection points.” This demonstrates our ability to provide rare expertise in all facets of project management including planning, engineering design, logistics, and job site management.

We have a fully diversified operation that is customizable based on your unique needs. If you just need stock supports and standard items, we can provide them very quickly. Our engineering team can help find the best support(s) for your application. Or our field service team can inspect your pipeline conditions and recommend the best solutions. Our team also regularly completes installations and conducts on-site project management. We are your one-stop shop for pipe supports, insulated supports, expansion joints, vibration solutions, pipe stress analysis, and more.


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Over 1/2 a Million Instrument Stands for LNG Service and Operator

November 15, 2022

Over 1/2 A Million Instrument Stands For Lng Service And Operator

Floor mount Support Modules utilize a 1/4" steel base plate to clamp, bolt, or weld instrument assemblies directly to a wall or beam. These Primary Modules can be used independently or together with Secondary Modules to construct a universal support package for any instrument in any position. These units were furnished with a hot-dipped galvanized finish to protect against corrosion. We can also provide other finishes such as painted or powder-coated. Instrument stands are used in almost any plant that utilizes process instrumentation such as flow meters, pressure, and temperature sensors, and other instruments used to monitor processes both onshore and offshore. PT&P also offers a complete line of adjustable instrument support components which, when combined, will create various configurations to your exact requirements or individual needs. In addition, we can also provide customized instrument supports fabricated from 304 SS or other materials according to your company’s specifications. We have supplied instrument stands for coker units, LNG, and refinery facilities. For additional information about our Instrument Support Stands, please click on the following link: PT&P Instrument Supports Catalog

In these times of supply chain considerations and challenges on major projects, we’ve consistently been the best partner to ensure timely design, production, and delivery of project needs on any scale with the largest range of products and services throughout your piping systems. Along with being a proven supplier on multi-billion dollar projects, we also work hand in hand with single-plant turnaround needs every day.


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