List | Piping Technology & Products, Inc.

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. To accommodate customer-specified travel and spring rates, 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 ductwork 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

PT&P REF. ORIGINAL POST 11092021

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 services 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, thermoplastic 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.

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 the PT&P field services, 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.

PT&P REF. ORIGINAL POST 05182021

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

November 15, 2022

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.

PT&P REF. ORIGINAL POST 08182020

B-Type Variable Spring Hangers for an overseas LNG Facility

November 1, 2022

Type:	B-Type Variable Spring Support Assemblies
Size:	13″ to 120″ range pipe elevation
Design:	Operating Loads: 9,320 lb. to 28,2000 lb. Spring Rates 4,700 lb./in. & 5,320 lb./in
Material:	\| Hot-dipped Galvanized Carbon Steel
Testing:	Load & Travel Test \| Q.C. Inspection

These variables were supplied to an overseas LNG facility where accessibility is limited due to the remote location in the facility as well as the plant itself. Products shipped must be very dependable and long-lasting because of the difficulty of shipping to this location. Variables use coiled springs to support a load and allow movement. The resistance of the coil to a load change during compression is why these devices are called “variables”. We offer a variety of different designs of variable spring pipe supports. PT&P, with its long-standing history and experience, has set up optimized manufacturing to offer an unparalleled set of customization options with minimal impact on delivery timeframes to support JIT deliveries and help manage cash flows on such large capital-intensive projects. In addition to our standard (hot-dipped galvanized, neoprene coated spring coils) variable spring supports, we can customize our springs to accommodate special materials, finish, dimension, load, load adjustment, travel, and travel stops, as well as provide sensors for remote monitoring.

Given the shift in global LNG production due to volatile political situations outside the US, the US has become the largest exporter of LNG this year globally. US LNG exports will continue to grow because of increased LNG export capacity, increased international natural gas and LNG prices, and increased global demand, especially in Europe.

During the initial build-out in LNG globally in the late 1990s/early 2000s, PTP provided the platform to its customers and their clients for extensive innovation concerning all phases of development concerning pipe supports for LNG plants and terminals, starting with product design, testing, material, and climate considerations. As the “thought leaders” in product design, we helped develop and produce the now most commonly used cryogenic supports utilizing G-10 insulation. As LNG capital projects return to the US, you can count on PTP to provide an unparalleled track record and expertise to move your LNG projects along safely in a timely, cost-effective manner to meet world energy needs.

PT&P REF. ORIGINAL POST 04072020

Sway Strut & 3-Bolt Pipe Clamp Assemblies

October 25, 2022

Type:	Sway Strut & 3-Bolt Pipe Clamp Assembly
Size:	30″ NPS \| 44-1/8″ CC \| 4″ Adjustment
Material:	Carbon Steel \| 304 Stainless Steel
Design:	Restrain Tensile/Compressive Force in 1 Direction Permit Movement in Other Directions

PT&P fabricated and designed sway strut and 3-bolt pipe clamp assemblies for a power plant in California. Supplied to a natural gas-fired, combined-cycle facility, the plant will produce over 620-megawatts of power and help to repower older generating infrastructure with more environmentally friendly technology. The assemblies are manufactured from carbon steel with 304 stainless steel load pins. They are designed for a 30″ diameter pipe. This sway strut has a pin to pin length of 44–1/8″ and comes with a standard 4″ adjustment. The sway struts are designed to restrain either tensile or compressive force in one direction while providing for movement due to thermal expansion or contraction in other directions.View Product.

PT&P REF. ORIGINAL POST 08132019

Sway Struts Designed for an LNG Liquefaction and Export Facility

October 18, 2022

Piping Technology & Products is a manufacturer of all types of pipe supports to areas all over the world ranging from sports stadiums to geothermal to infrastructure applications. In fact, many of the items you will see on our website were developed for the specific requirements of a customer who could not use the standard designs available in our industry. These sway strut assemblies were designed and fabricated for a large LNG liquefaction and export plant. Sway struts are used in a wide range of applications in power plants, chemical and refineries to restrain movement in tension (or X plane) while allowing lateral movement (in the Y and Z plane). These fig. 2100F, size C sway struts are designed with 4” adjustment for loads up to 4,500 lb. The pins are fabricated from a high alloy steel for added strength and the threaded rod ends are carbon steel and hot-dipped galvanized. The sway strut body was hot-dipped galvanized after the donut and pipe were welded. The rod ends and end brackets were galvanized a second time for added corrosion resistance after the holes for the IKO bearings and pins are enlarged to fit these component parts. The C-C dimension is 30-11/16” and a quality control inspection involving thread engagement was completed prior to shipment. Piping Technology and Products is a manufacturer of all types of pipe supports to areas all over the world ranging from sports stadiums to geothermal to infrastructure applications. In fact, many of the items you will see on our website were developed for the specific requirements of a customer who could not use the standard designs available in our industry. If you do not find what you need, or if you need technical advice, please contact us.

PT&P REF. ORIGINAL POST 06222021

Standard Pipe Support Components Available on Amazon

September 21, 2022

Need a standard product quickly? Or know what you need and don’t need a quote? Skip the line and order through Amazon. From forged carbon steel turnbuckles and light or heavy 2-bolt, 3-bolt pipe clamps, riser clamps to long tangent u-bolts, we stock standard sizes for your quick-turn orders.

*If you need assistance, we are always available 24×7 via our emergency service or just send an email to [email protected].

Fig. 30 Forged Carbon Steel Turnbuckle	Fig. 60 Heavy Two-Bolt Pipe Clamp
Fig. 70 Light Three-Bolt Pipe Clamp	Fig. 80 Heavy Three-Bolt Pipe Clamp
Fig. 90 Riser Clamp	Fig. 100 Long Tangent U-Bolt
Piping Technology & Products, Inc. Expansion Joint (85 PSI)	Piping Technology & Products, Inc. Expansion Joint (150 PSI)
Piping Technology & Products, Inc. Expansion Joint (300 PSI)

Custom Designed Pipe Shoes for a Facility in Louisiana

September 13, 2022

Type:	Pipe Shoes
Size:	20” x 20”x 12”
Material:	A 516 Gr. 20 Carbon Steel \| 304 Stainless Steel
Testing:	Standard Q.C. Inspection

Pipe shoes and pipe guides are available in a variety of designs. Slide plates may be included on the pipe shoes for smooth sliding. Custom pipe shoes and anchors can be designed to meet your specific design requirements. We can design pipe supports, such as these, for use on pipelines containing expansion joints or other critical components where lateral and vertical pipe movement needs to be controlled. Similar to this design, we can also manufacture pipe supports such as spider guides (our PT&P Fig.6) that are used adjacent expansion joints in order to avoid a fulcrum that could impose lateral and vertical deflection on critical components such as pumps, compressors, and turbines often used in various green energy plants such as nuclear, geothermal, solar, biomass and hydropower. The guides of the spider guide can be furnished with split sleeves for easy installation or solid, and they can be modified to suit special applications.

PT&P custom-designed and fabricated multiple pipe shoes for a general industrial contractor in Louisiana. The base of the pipe shoes are fabricated utilizing low-temperature carbon steel A516 Gr. 70, and the clamps are fabricated from 304 stainless steel. The pipe shoes provide rigid support to the pipeline in the vertical and lateral directions while allowing axial movement. The dimensions are 20″ x 20″x 12″.

PT&P REF. ORIGINAL POST 10102019

Compact Springs for a Chemical Manufacturing Plant for Agriculture

August 16, 2022

Compact spring supports (also known as disc springs) were custom-designed for a chemical plant in the agricultural industry. We design each compact spring for specific applications. Usually, they are used in “tight” spaces where the conventional variable spring is too tall to fit the allowable space between the pipeline and supporting steel structures. In general, compact springs serve the same function as a conventional variable spring, to relieve vibration and stress in the pipeline and associated equipment. The springs supplied here are designed for loads ranging from 5,038 lb. to 15,144 lb. and spring rates from 5,904 lb./in. to 44,455 lb./in. Also, these disc springs were designed for thermal movement ranging from 0.011” to 0.46”. The assemblies are fabricated from 304 stainless steel and include Bronzphite® and stainless steel slide plates to lower the coefficient of friction due to lateral movement. Since there is lateral movement, the conventional variable spring would require “internally guided load columns”, however, these units incorporate a “guiding” feature within the spring’s design. They have an installed height of 10-1/2″ – 26”. Each assembly underwent load testing and other NDE and visual inspection by our QC department before shipment. Applications such as skid-mounted process equipment, pump and control skids, skid plants, and other types of skid packages where space is extremely limited are ideal applications for compact springs.

PT&P REF. ORIGINAL POST 07122021

Pipe Saddles Custom Designed for LNG Facility

August 3, 2022

Type:	Heavy-Duty Pipe Saddles
Size:	Up to 48” Diameter
Material:	A36 Carbon Steel
Testing:	Q.C. Visual Inspection \| Pipe Dimensional Tests

This week’s featured product, Piping Technology & Products, Inc. custom-designed heavy-duty pipe saddles for an LNG facility in Louisiana. The pipe saddles are part of a large liquefaction project and range in size. The largest pipe saddle will support a 48” diameter pipeline. They are fabricated utilizing A516 Gr70N low-temperature carbon steel base plates, and web plates. Standard Q.C., visual inspection with pipe dimensional tests were performed prior to shipment. A pipe saddle is a structure consisting of a saddle and integral base used to support the pipe by transmitting the load or forces to the adjacent structure. Since we are a custom fabrication shop, we specialize in the design and manufacture of pipe shoes and saddles to accommodate sloping lines, pipe elbows, hot and cold temperature lines, as well as storage tanks and pressure vessels. In addition to pipe saddles, we have also supplied a wide variety of pipe supports to LNG projects, as well as, Floating Rings. Below is just a brief list of supports supplied to LNG projects from our product portfolio:

Varibale Assemblies

Constants Assemblies

Pipe Hanger Hardware

Slide plates and wear pads

Snubbers, Sway braces

Cryogenic Insulated Shoes-G10 as well as PUF

Insulated Trunnions

Adjustable Pipe Stands

Our products have gone into all key components of LNG facilities ranging from the liquefaction plant, the flare lines, loading lines, the terminals, and storage tank facilities.

PT&P REF. ORIGINAL POST 01082020

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