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F-Type Variable Spring Supports Designed for a Chemical Processing Plant
May 19, 2026

F-Type Variable Spring Supports Designed for a Chemical Processing

PT&P manufactured F-type variable spring supports spring supports for a chemical processing plant in Texas.

These variable spring supports were designed with an internal guide and engineered to accommodate 0.09 inches of vertical movement. The units were specified for a 5,350 lb. cold load and a 5,450 lb. hot load, ensuring proper load support throughout operating conditions.

A key design challenge for this project involved the required hydro-test load. The supports needed to withstand a hydro-test load exceeding 33,000 lbs, which significantly surpassed the standard maximum hydro-test capacity of approximately 18,000 lbs.

To address this requirement, PT&P incorporated special collars in conjunction with the standard travel stops. These collars were specifically engineered to absorb the extreme hydro-test loads by utilizing the high-strength characteristics of the load flange and housing assembly, while effectively bypassing the threaded internal components of the spring support.

This custom solution provided the strength and reliability required for the application while maintaining the operational functionality of the variable spring assembly.

 

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Custom Big Ton Springs Designed for a 122,000 lb. Load for a Chemical Plant
May 4, 2026

Custom Big Ton Springs Designed for a 122,000 lb. Load for a Chemical Plant

Type: Big Ton Spring Supports
Size: 52-3/4″ L x 38-3/4″ W x 91″ H
Design: 121,916 lb. Load | 3/4″ Upwards Movement
Material: HDG Carbon Steel | Neoprene Coated Springs
Testing: Load Calibration Test | Hydro-tested

Piping Technology & Products (PT&P) custom-designed a big ton spring support for a chemical plant in Pennsylvania to support a vessel with a load exceeding 121,916 lbs and accommodating 3/4 inch of upward movement.

The unit measures 52-3/4″ L x 38-3/4″ W x 91″ H and was engineered to handle substantial loads while allowing controlled movement within a confined space. Big Ton spring supports are specifically designed for heavy-duty applications, including vessels, compressors, and pumps in power and petrochemical facilities.

By incorporating a compact, high-capacity support solution, PT&P helped the client avoid a costly redesign of the piping system, delivering both engineering efficiency and cost savings.

This unit features an internal guide and a specially designed pedestal to meet the required elevation and withstand hydro-test loading conditions. A load calibration test was conducted prior to shipment to ensure performance and accuracy.

This project demonstrates PT&P’s ability to provide custom-engineered solutions for extreme load conditions, combining reliability, precision, and cost-effective design.

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