List | Piping Technology & Products, Inc.

72" I.D. Cryogenic Insulated Supports for a Project in Algeria

February 16, 2010

PT&P manufactured 72″ dia. insulated supports for temperatures as low as -260°F. The insulation is multi-layered comprised of polyurethane foam with a density of 20 PCF, a vapor barrier, an aluminum metal jacket, and acoustic pads. The acoustic pads are installed around the cold shoe to absorb vibration. The base and bearing plates are fabricated from carbon steel. The shoes will be used to support and insulate piping in a receiving & regassification plant and refinery.

Do you require cryogenic insulated supports in your piping system? Get pricing now!

Cryogenic Insulated Supports with Acoustic Pads for a Project in Algeria

February 9, 2010

The operating temperature for these cryogenic shoes ranges from -290°F to 90°F. They are designed for 56″ diameter pipe and are capable of supporting loads up to 40,000 lb. The insulation is multi-layered comprised of 20 PCF polyurethane, a vapor barrier, an aluminum metal jacket, and acoustic pads. The acoustic pads are installed around the cold shoe to absorb vibration. The base and bearing plates are fabricated from carbon steel.

February 2010 News

February 5, 2010

PT&P is Now Certified with Texas Board of Professional Engineers
Piping Technology & Products, Inc. has been approved for registration with the Texas Board of Professional Engineers.

View Texas Board of Professional Engineers Certificate

In an effort to ensure safe engineering practices throughout the State of Texas, the Texas Board of Professional Engineers has acknowledged that Piping Technology & Projects meets the necessary qualifications to provide professional engineering services and has therefore awarded PT&P a certificate stating its eligibility.

164 Wide Base Sliding Insulated Supports for a Power Station

February 2, 2010

The hot shoes are fabricated from A-36 carbon steel with 304 stainless steel slide plates. The 18″ dia. hot shoe has a maximum vertical load of 5500 lb. and the 24″ dia. hot shoe is capable of loads up to 13,750 lb. All the supports in this project are designed for temperatures of up to 1200°F. In addition to the insulation, these supports are capable of sliding axially or laterally as part of the piping system.

Special U-Type Constant Spring Supports

January 19, 2010

PT&P designed a constant load support system for a fluid tank with a load of 105,000 lb. over an area of 5′ W x 20′ L. To prevent twisting of the fluid container, the support system is designed to allow for “level” vertical movement. This was achieved by using a special system composed of three U-Type constant units. Each unit employs two springs working in parallel with a common large base plate and a load flange to support the entire 5′ width of the container.

The constants will support loads of 39,000 lb., 36,000 lb., and 30,000 lb., with a total travel of 4″ in the “upwards” direction. The spring coils were coated in neoprene, and all the other major components were hot dip galvanized to inhibit corrosion. These constants were constructed primarily from carbon steel with the use of stainless steel and PTFE, 25% glass filled slide plates.

Want to learn more about constant springs? Instantly view a past constant webinar today!

78″ Long 200 C-Type Constant Spring Assembly for a Power Plant

January 12, 2010

78" Long 200 C-Type Constant Spring Assembly Each constant spring support is designed to carry a 27,200 lb. load and provide 13″ downward travel. Special spring coils are used in order to reduce the entire length of the pipe hanger assembly. The frame and all internal moving components’ geometry are optimized as well to reduce the overall size. In total, the frame and casing combination measure 78″L x 21½”W x 33¾”H. The customer requested frame modification for special lug locations. Do you require constant spring assemblies for your plant? Get pricing today! Read More

Variable Spring Supports for an Off-Shore Oil and Gas Refinery

January 5, 2010

C-Type Variable Spring Support Assemblies

The C-Type variable spring assemblies range in overall length from 3′-2½” to 3′-5/8″, and the F-Type measures 1′-1½. The C-Type variables are designed with an operating load of 1653 lb. and a spring rate of 680 lb/in. The F-Type variable is designed with an operating load of 1511 lb. and a spring rate of 340 lb/in.

The variable supports will be utilized in a highly corrosive environment; therefore, Grade 316 stainless steel was used with a unique 3-coat paint system applied to the can housing.

Want to learn more about variable springs? Watch a past variable spring webinar now!

Big Ton Spring Supports with Low Friction Rollers

December 29, 2009

PT&P fabricated several big ton spring assemblies consisting of two different models for a refinery expansion project in India. The larger model has an operating load of 25,590 lb. and a design travel of .420″ up.

The smaller model has an operating load of 12,100 lb. and a design travel of .443″ up. The big tons will be utilized to support substantial vertical loads while simultaneously providing a large platform to accommodate axial movement of the piping system across the load flange. Low friction rollers are installed to reduce the sliding friction between the load flange and the bottom section of a pipe shoe.

Do you require big ton springs in your plant or refinery? Let us price them for you today!

5′ 7-1/2″ Tall F-Type Variable Spring Support Assemblies for an Oil Refinery in California

December 22, 2009

PT&P designed and fabricated F-type variables for an oil refinery in California. The variable springs are designed for an operating load of 49,771 lb. and an installed load of 43,000 lb. Two coils are used in tandem to achieve a vertical movement of 1-5/8″ downward. The variables are fabricated from hot-dipped galvanized carbon steel and are customized with an extended load column to reach an installed height of 67-1/2″. The variables for this project are the largest standard double springs offered; however, PT&P can customize to any load specification. Standard load testing was performed prior to shipment.

Want to learn more about variable springs? Instantly view a past variables webinar!

Constant Spring Assemblies Custom Designed for Replacement of Failed Supports

December 15, 2009

This initial order included PT&P’s field services division testing and recalibrating four constant spring supports not manufactured by PT&P. A preliminary inspection of the original constants revealed deformations in the spring coil housing. This is indicative of defective coils; therefore, before any load tests were conducted, inspection windows were cut into the spring coil cover to confirm the initial hypothesis (Figure 2). Inspection of the coils revealed complete deterioration with broken and missing sections of the spring. Subsequent inspections of the remaining three assemblies illustrated similar failures. The original constants were then disassembled (Figure 3) to determine the feasibility of replacing only the coils while utilizing the original frame/cam components.

The original spring coils were different in spring rate, length, and diameter than any standard PT&P coils; therefore, multiple coils were required to duplicate the overall function of the existing coils. Using multiple coils also required modifications to the existing frames. In an effort to expedite the overall delivery schedule, entirely new constant springs were manufactured in one week (Figure 1). The four new constants measure 53″ long, 13″ wide and 86″ tall. They have a 18-3/4″ diameter spring coil with a coil housing of 20-1/2″ diameter. The new constant assemblies are designed for an operating load of 13,332 lb., travel of 13″ upward and 2″ downward for a combined total travel of 15″. A load test throughout the total travel range was performed on each constant.

Want to learn more about constant springs? Watch a recording of a past constant webinar today!

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