For spring cans capable of 40,000 lb. or greater, we recommend you use jacking bolts to remove the travel stops. Visit our visual media section to learn the Solution for Removing Travel Stops at Heavy Loads.
Blog Category: ENGINEERED SPRING SUPPORTS
232 Variable Spring Supports for a Natural Gas Processing and Separation Plant
May 14, 2012
A total of 232 variable spring supports were custom designed for a natural gas processing and separation plant. This project included various spring sizes from PTP-1 30 C-type to PTP-4 160 F-type assemblies. The variables are fabricated from carbon steel, galvanized and coated with a special 3-coat paint system to protect against corrosive byproducts such as sulphur. The F-types include 304 stainless steel and PTFE, 25% glass filled slide plate assemblies.
251 Variable Furnace Springs for a Chemical Plant in Virginia
April 2, 2012
251 variable furnace springs were designed and fabricated for fertilizer production at a chemical plant in Virginia. The furnace cans are carbon steel and painted with red-oxide primer to avoid any potential hazards where exposed to high temperatures. This project included figures: PTP-1-120, PTP-2-150, PTP-2-180, PTP-4-100 and PTP-4-200 variable furnace springs with operating loads ranging from 1,042 lb. to 15,512 lb. A load test on all variable springs was conducted prior to shipment.
Variable Springs with Guided Load Columns and PTFE Lined Pipe Saddles
March 2, 2012
These F-type variable spring supports are fabricated from carbon steel with a hot dipped galvanized finish and designed with guided load columns to provide stability for minimum lateral movement. The fig. 46 pipe saddles are also fabricated from carbon steel with a HDG finish and lined with PTFE, 25% glass filled material. The pipe saddles are designed for 8″ to 36″ diameter pipe sizes, and the entire assembly is 50″ in height. These variable-saddle support assemblies are capable of supporting up to 22,300 lb. and 1″ vertical movements. We performed standard spring loading tests and a Q.C. inspection prior to shipping to an offshore oil and gas platform near Malaysia.
Read MoreStock Upthrust Constants Modified with an Auxillary Platform
January 16, 2012
These 200 U-Type constant spring supports were modified to increase their installed height by adding a secondary plate and angles, which will be welded to the structural beam. The constants range in size from 25″ to 27″ in height, 52″ to 67″ in length, and 25″ in width. Their load capacities range from 10,300 lb. to 13,000 lb. with vertical movement ranging from 3″ to 4-1/2″. All constants were fabricated from A-36 carbon steel, and went through standard load and travel testing per MSS Standards prior to shipment.
Do you have a similar application that requires upthrust constants? Get pricing today!
PTP-1 F-Type Variable Spring Assemblies
December 19, 2011
These PTP-1 F-Type variable spring assemblies fabricated from A-36 carbon steel, were custom designed to accommodate a height of 11-11/16″ while keeping the same spring rate. The F-Type variable is used to support the pipe from below and are typically mounted to concrete pads via anchor bolts or welded to structural steel. The variables are designed for loads up to 6,500 lb. and a total upward travel of 5/16″.
Want to learn more about variable springs? Check out a recording of a past live webinar.
U-Type Constant Springs Custom Designed for Large Travel for an Oil Refinery
September 19, 2011
These figure 200 U-type constant springs were fabricated from A-36 carbon steel and range in size from 30-1/2″ to 41″ in height, 25″ to 31″ in width, and 68″ to 80″ in length. 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. Loads range from 9,000 lb. to 42,000 lb., and vertical movements range from 6″ to 11″. All the constants went through standard load and travel testing per MSS Standards prior to shipment.
Want to learn more about constant springs? Instantly view a recording of a past webinar.
F-type Variable Spring Support with a Stainless Steel Wire Rope Isolator
September 6, 2011
This F-type variable spring support was customized with a wire rope isolator for a facility located in Canada. The variable spring was designed for a load of 12,000 lb. The wire rope isolator is essentially a 1.25″ diameter stainless steel rope looped eight times between two chemically conversion coated aluminum alloy retaining bars. The wire rope isolator is effective in vibration isolation and energy absorption.
Need a similar support? We’d be happy to serve your needs!
Variable Spring Supports for a Gas Storage Facility in Abu Dhabi
August 1, 2011
A total of 90 variable spring supports were designed and manufactured to support pipe lines in a gas storage facility in Abu Dhabi. The pictures above show PTP-4 Double Spring B-Type, PTP-6 Triple Springs B-Type, PTP-1 Triple Springs D-Type, and PTP-4 Double Springs F-Type, (also known as F-Cans). Load capacities range from 1,000 lb. to 45,000 lb., and movements range from 3/8″ to 3″. A two-layer custom paint was applied over the hot-dip galvanized finish to protect against a severely corrosive environment. Travel stops were chained to the spring can housing, so they can be reused during plant shutdowns. Load and quality assurance tests were performed on all the supports prior to shipment.
Need variable spring supports for your piping system? Get pricing today.
Custom Designed Variable Spring Supports with Stainless Steel Slide Plates
June 20, 2011
This custom designed variable spring assembly is comprised of a standard PTP-1-160 type F variable spring with a supplementary extension and load flange with a stainless steel slide plate. The variable is fabricated entirely from carbon steel with a hot-dipped galvanize finish. The extension is schedule 40 pipe, 8″ in diameter and 12-5/16″ in height. The slide plate is fabricated from A240 grade stainless steel and is welded to the top of the load flange. This support will be used underneath a 16″ diameter pipe with a dummy leg. It is designed for 1/16″ vertical travel and 1/8″ horizontal travel for an oil refinery in Algeria.
Do you require custom variables or slide plates for your piping system? Get pricing today!