Houston, TX, USA, 02/10/00:  In January 2000, Piping Technology & Products, Inc., a manufacturer of high quality engineered products, designed and built two 33 1/2 inches travel and two 25 inches travel constant load spring hangers. These constant load spring hangers will be in service at a geothermal production well in Hawaii, where they will be used to support a pipe that carries hot water discharged from a geothermal production well to a separator. 

The well will produce 2.8 Million gallons of water per hour at a discharge temperature of 680° F, and a pressure of 2800 psi. These custom designed constant load spring hangers provide extraordinarily large travel distance. The 33 1/2" travel and the 25" travel constant load spring hangers are designed to provide a constant 16,000 lbs. and 6,000 lbs support for a pipe moving a vertical distance of 33 1/2" and 25" respectively.

PT&P's constant load spring hangers are principally used to support pipes and equipment subjected to vertical movement due to thermal expansion at locations where transfer of stress to other supports or equipment can be critical. All constant load spring hangers are designed per Manufacturers Standardization Society (MSS), ANSI, and ASME specification. Design calculations are performed using design software developed in-house and calculations are further checked using hand calculations. Piping Technology & Products, Inc. also has full in-house finite element analysis capabilities to prove designs. PT&P provides 24-hour emergency field service during installation or plant shutdowns.