The sealing element is vital for valves, preventing media leakage when closed. Made of durable, corrosion-resistant materials, it withstands pressure, temperature, and corrosion. Its repeated friction during operation makes material choice and manufacturing quality crucial for sealing performance and valve lifespan, regardless of valve type.
TIANYU Class 150 DN300-DN1000 WCB full welded trunnion-mounted ball valve: worm gear operated, soft-sealed, -29℃~300℃, ANSI Class VI leakage. Ideal for municipal, oil/gas, chemical, power sectors needing reliable large-diameter flow control. API 6D compliant, cost-effective, low maintenance, with superior leak-tightness.Customize with 304/316 stainless steel body, RPTFE/PEEK seals, Class 300/600 pressure rating, fire-safe design (API 607), NACE MR0175 for sour service, or electric/pneumatic actuator. Tailor to your media, pressure, temperature, and installation requirements.