The inner cavity of the valve body, the sealing groove of the disassembly surface, and the flange sealing surface are all coated with PTFE (or reinforced FEP) lining as a whole, with a thickness of 2-3mm. The lining is formed by compression molding and sintering process, and is firmly combined with the metal valve body without bubbles or delamination defects. It can completely isolate corrosive media such as strong acids, strong alkalis, and organic solvents from contact with carbon steel/stainless steel valve bodies, eliminating the risk of corrosion and leakage.

1. Corrosion & Wear Resistance

The valve body material can be selected from carbon steel (WCB) and stainless steel (304/316). The lining options include PTFE, FEP, and nitrile rubber. The PTFE lining version withstands most corrosive media, while the wear-resistant modified lining handles slurry media containing solid particles like desulfurization wastewater.

2. Fatigue Resistance & High Performance

Featuring an integrated forging process, the valve stem connects to the plate without pins, eliminating loosening risks. Rated for over 100,000 opening/closing cycles. Low torque design allows for labor-saving manual operation and fast response (≤ 3 seconds) when paired with pneumatic or electric actuators.