Piping Technology & Products, Inc. designed and manufactured variable spring supports for a refinery in Forney, Texas.
The spring supports are made of carbon steel and have a length by casing diameter range from 9-3/16 by 8-5/8 to 53-11/16 by 12 ¾. In order to insure the quality of the springs, compression tests were used with a load capacity of 21,500 pounds.