• July 09. 2021

I Test Purpose To verify the pressure cycling performance of the gate valve stem packing seals at 15000PSI, -50~350℉. II Product and fixture 1. Product structure The seals include 1 of A ring, 1 of spring, 1 of U ring, 1 of B ring, and 1 of C ring, see fig. 1: 2. Material : 1-PTFE+13% Carbon fiber+2%Graphite (PC007) 2-PTFE+13% Carbon fiber+2%Graphite (PC007) 3-Elgiloy Golden 4-PTFE+13% Carbon fibe...

• September 23. 2025

JST Seals possesses comprehensive in-house capabilities to perform PR2 tests under stringent conditions, ensuring the reliability and performance of our sealing products. Our facility is equipped with advanced testing apparatus, including material abrasion testers, high- and low-temperature PR2/PR2F test systems, ultra-low temperature equipment using liquid nitrogen (-320.8°F / -196°C), and a rang...