April 13, 2021
PT&P received a rush order this past week for variable spring supports at 4:41 pm, quite late into the workday; however, this is business as usual, our manufacturing facility in Houston, TX operates 24/7 to support our customers.
In this case, the customer facility, an olefins plant was incurring a significant loss and needed to replace the springs to resume operations as quickly as possible. The seven (7) variable springs were designed, fabricated, and shipped within 2 days. The F-type variable spring support is designed to support piping from below, directly from the foundation, concrete column, or supporting structural pipe rack steel. Adjustment is made by inserting a bar into holes in the load column and turning the load column as a jackscrew. The base plate is bolted to the case and has four holes for fastening.
As global leaders in variable spring manufacturing, we used our adaptive manufacturing processes in which the PT&P pre-fabricated component parts that make up these variables are easily assembled when orders are placed. These variables were fabricated from carbon steel and hot-dipped galvanized for corrosion protection. They are designed to support loads ranging from 713 lb. to 1668 lb. and movements of 0.148” to 0.133”. Load and travel tests, along with Q.C. inspections were performed before shipment. Variable springs are used in mills, refineries, chemical, plastics, polymer, solar, power, biochar, renewables, carbon black, LNG boilers, food, packaging, and wastewater treatment plants to support piping as it goes through its’ range of movement.