Blog Category: ENGINEERED SPRING SUPPORTS

C-Type Constant Spring Supports for a Refinery in Texas
July 10, 2017

C-Type Constant Spring Supports For A Refinery In Texas

Type: Constant Spring Supports
Size: 25″ in Height x 17-38″ in Length x 11-5/8″ in Width
Material: A-36 Carbon Steel with HDG Finish
Design: 981 lb. to 1828 lb. load | 2-1/2″ to 3″ Vertical Movement Range
Testing: Standard Load and Travel Testing per MSS Standards

Piping Technology & Products, Inc. designed and manufactured C-type constant spring support assemblies for a refinery in Texas. The constants are 25″ in height, 17-3/8″ in length, and 11-5/8″ in width. Their load capacities range from 981 lb. to 1828 lb., with a vertical movement ranging from 2-1/2″ to 3″. All constants were fabricated from A-36 carbon steel with a hot-dipped galvanized finish, and underwent standard load and travel testing per MSS Standards prior to shipment.

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F-Type Variable Springs for a Refinery in Oklahoma
June 26, 2017

F-Type Variable Spring Cans For A Refinery In Oklahoma

Type: Variable Spring Supports
Size: 70 7/8″ tall and 17 3/4″ wide
Material: Carbon Steel and PTFE Slide Plates
Design: 30,980 lb. load/2,083 lb. spring rate
Testing: 35,000 lb hydrotest

PT&P manufactured variable spring supports for a refinery in Oklahoma. These F-Type PTP-6 spring cans are 70 7/8″ tall and 17 3/4″ wide. They are completely fabricated from carbon steel with PTFE slide plates welded on the load flange and internal guide. They are designed for an operating load of 30,980 lb. .with a spring rate of 2,083 lb./in. and 0.49″ of movement. These variables were hydrotested with a load of 35,000 lb. prior to shipment.

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Big Ton Spring Supports Designed for a LNG Facility in Australia
February 7, 2017

Big Ton Spring Supports Designed For A Liquid Natural Gas Facility In Australia

Type: Big Ton Spring Supports
Size: 19-5/8″ x 19-5/8″ x 15″
Material: Hot-dipped Galvanized Carbon Steel | A193 Gr. B7
Design: Movements: 3/16 ” – 1/4″ | 16,619 lb. Load
Testing: Load Cell throughout Operating Range

These big ton spring supports were designed for a liquid natural gas (LNG) plant in Australia. They were selected because the application required supporting heavy loads as the supported equipment undergoes thermal expansion during operation. The assemblies are fabricated from hot-dipped galvanized carbon steel. The travel stop rods and nuts material is A193 Gr. B7. The units measure 19-5/8″ x 19-5/8″ x 15″ and are capable of supporting loads up to 13,619 lb. while accommodating movements from 3/16″ to 1/4″. The big tons were tested with a load cell to insure proper operation throughout the big ton’s operating range.

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PT&P Variable Spring Supports
January 10, 2017

Learn more about the variable springs constructed at Piping Tech.

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Learn more about the various types of variable spring supports made at Piping Tech, ranging from F-Type, G-Type, springs for furnace applications and much more.

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Variable Spring Hangers Designed for an Ammonia Plant
January 9, 2017

Variable Spring Hangers Designed For An Ammonia Plant

Type: B-Type Variable Spring Hanger
Size: PTP-2 Standard Variable Spring
Material: Hot-dipped Galvanized Carbon Steel
Design: 0.955″ Downward Movement | Cold Load: 12,183 lb. | Hot Load: 14,723 lb.
Testing: Hydro-load Test: 15,750 lb.

PT&P designed and fabricated variable spring hangers for an Ammonia Plant in Louisiana. This B-Type PTP-2 variable hanger is fabricated from carbon steel and hot-dipped galvanized to protect against corrosion. The variable is designed for 0.955″ of downward movement and an installed load of 12,183 and an operating load of 14,723 lb. This variable included a 1″ forged steel clevis and the assembly was tested at a hydro-load of 15,750 lb.

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Type-C Variable Assemblies with Dual Travelers for a De-coker Unit
December 22, 2016

Type-C Variable Assemblies With Dual Travelers For A De-Coker Unit

Type: Variables with dual travelers
Design: Operating load: 1,698-21,756 lbs
Material: A36 Carbon Steel with HDG finish
Size: Horizontal Travelers range from size 2 to size 4

These dual travelers with Type-C variable spring hanger assemblies were custom designed by Piping Technology & Products for valves in a de-coker unit in Texas. All completed assemblies were fabricated from A36 carbon steel with an HDG finish. The travelers range from size 2 to size 4 and are designed for 12″ of horizontal movement. The variables are designed for an operating loads ranging from 1,698-21,756 lbs.

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Variable Spring Supports Designed for a Furnace Application in Oklahoma
September 26, 2016

Variable Spring Supports Designed For A Furnace Application In Oklahoma

Type: Variable Spring Supports
Design: 1,765 lb. Load | +/- 5% Spring Rate
Material: Carbon Steel with Red Oxide Primer
Testing: Standard Spring Rate & Calibration Tests

PT&P custom designed variable spring supports for a furnace application at a Nitrogen Facility in Oklahoma. The furnace springs are fabricated from carbon steel and painted with a red-oxide primer to help prevent corrosion. The spring supports are designed to support loads up to 1,765 lb. With a spring rate calibrated to be within +/- 5% of the theoretical value.

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Big Ton Spring Supports Custom Designed for an LNG Facility
September 13, 2016

Big Ton Spring Supports Custom Designed For An Lng Facility

Type: Big Ton Spring Supports with PTFE Slide Plates
Size: 29-7/8″ x 29-7/8″ 16-1/2″
Material: Carbon Steel with HDG Finish | PTFE, 25% Glass Filled Slide Plate
Testing: Tested in a press connected to the load cell

PT&P custom designed big ton spring supports with PTFE slide plates for an LNG facility in Australia. The components within the spring housing include load columns, travel stops, spring coils and lifting lugs. Each assembly is designed for an operating load ranging from 16,276 lb. to 34,479 lb. and will allow for movement between 0.16″ and 0.24″. They are fabricated from hot-dipped galvanized carbon steel and measure 29-7/8″ x 29-7/8″ x 16-1/2″. The big ton spring support is ideal for applications that have very heavy loads with thermal expansion because of the stability they provide throughout the range of travel. These supports were tested in the press connected to a load cell to insure proper operation throughout the entire working range of the coils.

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Constant Spring Supports Design and Application Webinar
August 11, 2016
This webinar is over, view the recording in the webinar archives

Constant Spring Support

This Webinar will focus on the different types of constant spring supports. Learn about the special features available, in addition to the design of a constant support. View how the different cam/coil configurations produce a unique response to an applied load. Discover the step by step process used to size a spring for your application. Learn about the different attachments, testing, and installation and maintenance procedures. View examples of failed supports provided by our Field Service Division and learn why they failed and how to prevent it. Gain knowledge of the valuable tips used when deciding to adjust or replace a constant spring support, as well as shutdown and isolation procedures.

The featured presenter, Jerry Godina has over 15 years experience as a pipe support designer and manages PT&P’s engineer training development program. He also inspects existing supports, consults on site remediation projects and oversees installation on a regular basis.

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