All You Need to Know About Post Weld Heat Treatment | PWHT – ZECOslide gate valves
API 602 Gate Valves, Bolted Bonnet, Rising Stem, Socket Weld with 100mm Long Plain End Nipples Welded at Both Ends, PWHT. So have you heard of PWHT? What’s PWHT? Table of Contents Overview of Post Weld Heat Treatment (PWHT) PWHT encompasses many different types of potential treatments: Post Heating: Stress Relieving: When PWHT is required…