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Engineered Spring Supports — The Pipe Supports Blog

F-Type and C-Type Variable Spring Supports for an Acid Plant in Canada

August 4th, 2013 Comments off

F-Type and C-Type Variable Spring Supports for an Acid Plant in Canada

PT&P designed and fabricated F-type and C-type variable spring supports for an acid plant in Canada. The variables range from 4″-8″ in diameter and can accommodate between .039″– 5.02″ in movement. They are designed for an operating temperature of 200°F and operating loads between 509 lb. and 13,489 lb. The variable springs are coated with a red oxide coating to protect against corrosion and underwent standard and load travel tests prior to shipment.

Custom “Mini” Big Ton Spring Supports Designed for a Centrifugal Fan in an Chemical Refinery

May 26th, 2013 Comments off

Custom "Mini" Big Ton Spring Supports Designed for a Centrifugal Fan in an Chemical Refinery

PT&P custom designed “mini” big ton spring supports to support a large centrifugal fan at a chemical refinery in Texas. They are designed to support a total weight of 33,000 lb. within a maximum space envelope of 4″ wide x 16″ long x 8″ tall. As a result, these mini big-tons were fabricated using coils which could be placed in parallel within their respective frames. Four of the unites were comprised of four inner coils nested inside four outer coils to produce an operating load of 4,478 lb. and an overall spring rate of 2,740 lb./in. The smaller load capacity units were configured of four individual coils in parallel with an operating load of 3,735 lb. and a spring rate of 2,300 lb./in. The frame, load flange and all internal components were fabricated from carbon steel. The spring coils were fabricated from ASTM A-5160 spring steel. All supports were tested through their total working range to confirm load capacity and functionality.

C-Type Variable Spring Support Assemblies Designed for an Oil Sands Mine

April 21st, 2013 Comments off

C-Type Variable Spring Support Assemblies Designed for an Oil Sands Mine

PTP-2 160 C-Type variable spring support assemblies were designed and fabricated for an oil sands mine in Canada. The variables are 8″-12″ diameter, 16″ to 32-1/2″ overall length, and designed for an operating load of 5590 lb. with an upwards travel of 0.787″. The variables were fabricated from carbon steel with a hot-dipped galvanized finish and standard load and travel testing was completed prior to shipment.

G-Type Constant Spring Support, 96″ Long by 40″ High, Designed to Support a 12,818 lb. Load

February 10th, 2013 Comments off

G-Type Constant Spring Support, 96" Long by 40" High, Designed to Support a 12,818 lb. Load
This PTP-100 Type-G constant spring support is 96″ long by 40″ high and will support a 12,818 lb. load. It has an actual travel of 0.3″ and total travel of 1-1/2″. The G-type constant is comprised of two standard constant spring housing sub-assemblies joined together with an intermediate bridge assembly. The bridge assembly is customized to handle up to 26,000 lb. of hydro load. The G-type assembly allows for use in applications with limited space. Special identification tags were installed in addition to PT&P’s standard name plates per the customer’s request. Standard testing was performed and witnessed by an outside inspector prior to shipment.

Variable Spring Hanger and Pipe Clamp Assemblies Designed for a Cogeneration Plant in Canada

January 27th, 2013 Comments off

Variable Spring Hanger and Pipe Clamp Assemblies Designed for a Cogeneration Plant in Canada

These variable spring hanger and pipe clamp assemblies were custom designed for pipes ranging from 6″ to 20″ diameters at a co-generation plant in Canada. The spring can, threaded rods, weldless eyenuts, welded beam attachments and Fig. 80 pipe clamps were fabricated from hot-dipped galvanized carbon steel. The assemblies are capable of an overall load of 10,790 lb. with a total travel of 1/2″. A total of 21 spring hanger and clamp assemblies underwent standard load and travel testing.

Stainless Steel Constant Spring Supports for an Oil Refinery in the Virgin Islands

December 17th, 2012 Comments off

Stainless Steel Constant Spring Supports for an Oil Refinery in the Virgin Islands

PT&P custom designed  C-type constant spring supports for an oil refinery in the Virgin Islands. They are fabricated entirely from 304 stainless steel to support piping in a highly corrosive environment. The design loads are 7,000 lb., 9,500 lb., and 11,000 lb. with movements of 2-1/2″ and 3″. The constants measure 29″ L x 22″ W x 20″ H. Standard load and travel testing was conducted prior to shipment.

New Webinar: Pipe Supports for Beginners- Constants & Variables

December 6th, 2012 Comments off

View the recording at: http://info.pipingtech.com/webinar-beginners/

This webinar series was created to explain the basic principles of different types of pipe supports in the simplest way possible. It is geared towards “non-engineers” who want to have a better understanding of pipe supports. This particular presentation will give you a brief introduction to pipe supports and will then solely concentrate on constant and variable spring supports. It will explain the various designs, applications, and details of each support using simple terms and a lot of visual aids. The presentation will conclude with general guidelines of the maintenance and ordering process of constants and variables.

Over 40 Constant Spring Supports Designed to Support Production Pipes

November 12th, 2012 Comments off

Fig. 200 U-Type Constant Spring Support

Over 40 constant spring supports were custom designed to support production pipes in an oil refinery. This picture shows a Fig. 200 U-Type constant spring support.

Fig. 100 B-Type Constant Spring Support

This picture shows a Fig. 100 B-Type constant spring support.

The constants range in size from 22″ to 30″ in height, 35″ to 85″ in length, and 12″ to 31″ in width. Their load capacities range from 1,800 lb. to 20,800 lb. with a vertical movement ranging from 7″ to 11-1/2″. All constants were fabricated from A-36 carbon steel and painted with a 3-coat paint system. Each constant went through standard load and travel testing per MSS Standards prior to shipment.

Variable Spring Hanger and Structural Steel Assembly for a Solar Electric Generating System

October 28th, 2012 Comments off

Variable Spring HangersVariable Spring Hanger and Structural Steel Assembly

These variable spring hangers were designed for a 10″ pipe line in a solar electric generating system. All assemblies were fabricated from A-36 carbon steel with a hot-dipped galvanize finish. The picture on the left shows a structural steel assembly supporting a PTP-1 variable spring and a Fig.80 heavy 3-bolt clamp designed for a 3,789 lb. load. The picture on the right shows two PTP-2 variable spring hangers welded to a structural steel beam designed for a 675 lb. load. Each pipe hanger assembly went through standard load and travel testing prior to shipping.

200 E-Type Horizontal Constant Spring Supports for a Fired Heater Radiant Manifold

October 15th, 2012 Comments off

200 E-Type Horizontal Constant Spring Supports for a Fired Heater Radiant Manifold

These 200 E-Type horizontal constant spring supports are fabricated from A-36 carbon steel with a hot-dipped galvanize finish. The pins made for constants operation are A-322-4140 high strength carbon steel. The constants range in size from 22-3/4″ to 26-1/4″ heights, 60″ to 90″ lengths, 18″ width, and 19-1/2″ to 23-1/2″ in coil housing diameters. They are designed for 23,160 lb. to 33,700 lb. loads and 6-1/2″ to 14″ of total travel. A total of sixteen assemblies were custom designed for a fired heater radiant manifold. Each pipe hanger assembly went through standard load and travel testing prior to shipping.

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