OEM Worm Gear Wafer Butterfly Valve with Nylon Covered Disc Manufacturers, Factory

Our valve connection standards include DIN, ASME, JIS, GOST, BS etc. It’s easy for customers to choose the suitable valve, helping reduce their inventory stock.

Our valve seat uses imported natural rubber, with more than 50% rubber content inside. The seat has high elasticity and long service life, capable of opening and closing over 10,000 times without damage.

Each valve is cleaned by an ultra-sonic cleaning machine to eliminate all internal contaminants, guaranteeing absolute cleanliness and preventing pollution to the pipeline.

Bolts and nuts utilize SS304 material for superior rust protection capability, ensuring long-term durability in challenging working conditions.

The handle utilizes ductile iron for superior corrosion resistance compared to standard handles. Internal spring and pin are made of SS304. Semicircle structural design provides an ergonomic, comfortable touch feeling.

Each product of ZFA includes an individual material report for all main valve parts. Every batch features an exclusive casting stove number for full material traceability.

ZFA Valve body adopts a solid precision casting structure, providing higher unit weight, structural integrity, and exceptional exterior appearance across ductile iron, carbon steel, and stainless steel.

Through precise natural cooling, the adhesive strength of the powder coating is significantly enhanced compared to standard types, guaranteeing zero color change or fading within 36 months.

Pneumatic actuators adopt an advanced double piston structure, delivering high operational precision, high efficiency, and stable output torque throughout its service life.