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.
