Variable Springs for a Propane Dehydrogenation Unit in Texas

November 5, 2018

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 unit in Texas. The spring cans, rods, welded beam attachments, turnbuckles and clevises are fabricated from hot-dipped galvanized carbon steel. The variables can accommodate an elevation difference up to 11’-5” from the bottom of the steel to the connection of the pipe. They were designed for an operating load of 20,000 lb., a spring rate of 4,700 lb./in. and 0.007” upward movement. Standard load testing was conducted prior to shipping.

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Hold-Down Pipe Clamps with Slide Plates for LNG Service

October 19, 2018

HD-2 Hold-Down Pipe Clamps with PTFE Slide Plates Designed for an LNG Plant in Australia

Type: Hold-Down Pipe Clamps
Size: 8″ Dia. Pipe
Material: Carbon Steel | HDG
Design: Up to 400°F Temperatures

PT&P designed and manufactured standard HD-2 hold-down pipe clamps for an LNG plant in Australia. They are fabricated from hot-dipped galvanized carbon steel and include PTFE slide plates. The hold-downs are designed for 8″ diameter pipe and an operating temperature up to 400°F. The HD-2 is a restraint type hold down which allows axial movement while restraining lateral movement.

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Over 100 Cryogenic Pipe Supports Designed for a Nitrogen Facility in Colorado

September 10, 2018

Over 100 Cryogenic Pipe Supports Designed for a Nitrogen Facility in Colorado

Type: Pre-insulated Pipe Supports “Cold Shoes”
Material: CS | Red Oxide Primer | PUF Insulation
Size Range: 1/2″ – 6″ Thick Insulation | 1″ – 18″ Dia.
Design: -300°F Temperature | Lateral Restraints / Guides

PT&P custom designed more than one-hundred cryogenic pipe supports for a nitrogen facility in Colorado. The cold shoes are designed for pipe sizes ranging from 1″ to 18” diameter. They are designed with polyurethane insulation ranging from ½” to 5” thick. The clamps are carbon steel and coated with a red oxide finish. The cold shoes are designed as lateral restraints/guides that can support loads in two directions. Standard quality control tests were performed with a 6-8 week turn-around time.

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Cryogenic Supports with Micarta® Insulation for a LNG Facility in Australia

August 20, 2018

Cryogenic Supports with Micarta® Insulation for a LNG Facility in Australia

Type:  Insulated Pipe Supports “Cold Shoes”
Material:  CS | 304L SS | Micarta® Insulation
Size Ranges:  12-18″ L | 6-15″ W | 6-40″ H | 8-24″ Dia.
Design:  -320°F | Testing: PMI | Q.C. | MTR’s Provided

PT&P custom designed insulated supports for a cryogenic pipeline at an LNG facility in Australia. They are fabricated with 304L stainless steel plates and Micarta® G-10 insulation. Micarta® is designed to prevent LNG temperatures of -320°F from transferring to the base and surrounding pipe rack steel. The base plates are fabricated from carbon steel. These pipe saddles are designed to support pipes with dimensions ranging from 12”-18” in length, 6”-15” in width and 6”-40” in height. The nominal pipe size range is 8”-24” diameter. MTR’s were provided and non-destructive testing (PMI) was preformed, along with standard Q.C. inspection prior to shipment.

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Big Ton Spring Supports for an Oil Refinery in Australia

July 2, 2018

PT&P Custom Designed Big Ton Spring Supports for an Oil Refinery in Australia

Type: Big Ton Spring Supports
Material: Carbon Steel w/ HDG Finish
Design: 13,457 lb. Load | 0.35" Vertical
Testing: Load and Travel Tests

These big ton springs are used in supporting large heavy units such as compressors, vessels and pumps in power and petrochemical plants. The housing and frame are fabricated from carbon steel and hot-dipped galvanized, and the spring coils are dipped in a neoprene coating. The units are 48” x 40” x 20”. The big ton spring support is designed to allow limited movement of 0.35″ upwards and an operating load of 13,457 lb. This design saved the customer from having to entirely redesign the piping system, which saved them thousands of dollars. Load and travel tests were performed prior to shipping to an oil refinery in Australia.

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Big Ton Spring Supports Designed for an Oil Refinery in Australia

May 29, 2018

Big Ton Spring Supports Designed for an Oil Refinery in Australia

Type: Big Ton Spring Supports
Material: A36 carbon steel | Hot-dipped Galvanized | SS Slide Plates
Design: 16,276 lb. Ld. | 0.196″ Up Travel

The big ton spring support is used for supporting large heavy units such as compressors, vessels and pumps in power and petrochemical plants. The housing and frame are fabricated from carbon steel and the spring coils are coated in neoprene. Polished stainless steel slide plates are added to the top of the load flange, which reduces the coefficient of friction to allow for lateral movement. This big ton spring support is designed to allow limited movement of 0.196″ upwards, with an operating load of 16,276 lb. This big ton spring enabled the client to reduce engineering man hours by avoiding the redesign of the piping system due to limited space requirement.

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Sway Braces Designed for a Mechanical Equipment Supplier

May 14, 2018

Sway Braces Custom Designed for a Mechanical Equipment Supplier

Type: Fig. 555 Sway Braces
Size: 34-7/8” to 42-1/4″
Material: A36 carbon steel | Hot-dipped Galvanized
Design: 17,827 lb. Ld. | 12″ Travel | 7,200 lb. Spring Rate

PT&P custom designed Fig. 555 sway braces for a mechanical equipment supplier in Canada. The sway braces are fabricated from carbon steel, hot-dipped galvanized and range in length from 34-7/8” to 42-1/4″. The largest sway brace was designed for an operating load of 17,827 lb., a design travel of 12″ in either compression or extension and a spring rate of 7,200 lb. per inch. The smallest sway brace was designed for an operating load of 200 lb., a design travel of 9″ in either compression or extension and a spring rate of 1,800 lb. per inch.

The specified loads and/or movements exceed those of PT&P’s standard sway brace; therefore, these sway braces required a custom design and fabrication. Each sway brace was configured with a unique combination of carbon steel, spring coils, housings and internal components to accommodate the non-standard loads and movements.

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