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

May 23rd, 2016 Comments off

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 lb. Bronzphite® is best suited for high loads, low velocity applications and where the use of oil or grease is undesirable or unfeasible. The bronze plate acts as the bearing surface, withstanding heavy loads, while the graphite inserts provide a solid, oil-free lubricant. 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.

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

May 6th, 2016 Comments off

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 upwards 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.

Compact Spring Supports Designed for an Oil Refinery in Minnesota

April 8th, 2016 Comments off

Compact Spring Supports Designed for an Oil Refinery in Minnesota

These compact spring supports were custom designed for an oil refinery in Minnesota. Typically, compact spring supports are used to support large loads but small movements relieving process equipment nozzles from overloading. In this case, the springs are designed to support loads of 5,605 lb., 4,747 lb. and 1,250 lb. and movements of 0.133” and 0.029” upward and 0.199″ downward, respectfully.

Compact spring supports utilize engineered Belleville (disc spring) washers. Since these spring supports contain disc springs, both the support housings and the springs contained in the housings are made from 304 stainless steel. Corrosion resistance is significantly increased by using this combination. Glass coatings can also be applied to both the housing and springs to make the support system virtually impervious. Each assembly underwent load testing prior to shipment.

Big Ton Spring Supports Designed to Support a Pressure Vessel in an LNG Facility in Australia

March 18th, 2016 Comments off

Big Ton Spring Supports Designed to Support a Pressure Vessel in an LNG Facility in Australia

These big ton spring supports were custom designed for an LNG plant in Australia. These units were designed with PTFE, 25% glass filled slide plates, and will be used under the saddle supports of a horizontal pressure vessel. The big tons were selected due to a combination of confined space, heavy loads, and thermal expansion. The units measure 28-3/8″ x 25-3/8″ x 13” and are capable of supporting a load up to 11,488 lb while accommodating a down travel of 0.31 inches.

Variable Spring Hangers Designed for an Upstream and Valve Project in Thailand

February 19th, 2016 Comments off

Variable Spring Hangers Designed for an Upstream and Valve Project in Thailand

PT&P designed and manufactured these variable spring hanger assemblies for an upstream and valve project in Thailand. The variables clamp sizes range from 6″ to 12″ diameter with installed heights ranging from 6-8/8″ to 12-1/4″ from the structure to the center of the pipe. The B-Type pipe hanger assembly uses coil springs to support the load and allow for some movement. They are furnished with one lug welded to the top of the spring casing which allows the assembly to be suspended from structural members for pipe support. All forty-seven variable spring supports were quality checked with a 100% spring coil deflection test and a load cell calibration to set the assemblies at the prescribed installed load.

Custom Sway Strut and Pipe Clamp Assemblies for an LNG Plant in Australia

January 22nd, 2016 Comments off

Custom Sway Strut and Pipe Clamp Assemblies for an LNG Plant in Australia

PT&P fabricated and designed 52 of these custom sway strut assemblies for a liquid natural gas plant in Australia. These are manufactured from carbon steel with 304 stainless steel pins. The pipe sizes range from 2”-72” diameter, with a total length ranging from 27” to 137”. The sway struts are fabricated to restrain either tensile or compressive force in one direction while providing for movement due to thermal expansion or contraction in another direction. These sway struts have an operating temperature of 650°F and are designed for operating loads ranging of 650 lb. to 120,000 lb.

Special Sway Struts Designed for an LNG Plant in Australia

January 11th, 2016 Comments off

Special Sway Struts Designed for an LNG Plant in Australia

PT&P custom designed and fabricated 67 mini sway strut assemblies for a liquid natural gas plant in Australia. The sway struts are fabricated from galvanized carbon steel with 304 stainless steel pins. They are 14-7/16” long and capable of a 62,200 lb. load with an operating temperature of 650°F. The sway struts are fabricated to restrain either tensile or compressive force in one direction while providing for movement due to thermal expansion or contraction in another direction.

G-Type Variable Springs Support Designed for an LNG Facility

December 23rd, 2015 Comments off

G-Type Variable Spring Supports Designed for an LNG Facility

PT&P designed these G-Type variable spring support assemblies for an LNG facility in Saudi Arabia. The variables are comprised of two standard spring housing joined together with an intermediate bridge assembly. They are designed an upwards travel range of 0.078″ to 0.118″. The variables were fabricated from carbon steel with a hot-dipped galvanized finish. Standard load and travel testing was completed prior to shipment.

Custom F-Type Constant Spring Supports for Oil Refinery

November 6th, 2015 Comments off

Custom Constant Spring Supports for Oil Refinery

PT&P designed 100-F type constant spring supports for an oil refinery in Alabama. These custom constant spring supports are 32” x 12” x 23.5” and designed to support an operating load of 650 lb. with 14” of total travel. The constants are fabricated from A36 carbon steel and the coil is from 5160H alloy material. Standard load and travel testing were completed to ensure the quality and performance of these constants.

36” Dia. Cryogenic Pipe Saddles Designed for an LNG Facility

October 23rd, 2015 Comments off

36” Dia. Cryogenic Pipe Saddles Designed for a LNG Facility

36” Dia. Cryogenic Pipe Saddles Designed for an LNG Facility

PT&P custom-designed pipe saddles with micarta base insulation for an LNG facility in Australia. The saddles were fabricated from 304L stainless steel plates with thickness ranging from 1/8” to 3/8”. The micarta blocks range in thickness from ¼”-3”. The saddles were designed to support pipes up to 36” in diameter at an operating temperature of -300°F. Standard Q.C. and dimensional tests were performed prior to shipment.

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