China High Quality 4 Inch Cast Iron Check Valve Suppliers – PN16 DN50 Rubber Disc Swing Check Valve (Rubber Lined) – UNIQUE

Technical conditions and materials:

·Face-to-face sizes conform to EN558-1, basic series 48(DIN 3202 F6) soft sealing conforms to EN 12334 ·Diaphragm closing, rapid and soundless ·Diaphragm material NBR EPDM ·Final inspection conforms to EN12266 ·Applicable size: DN40~DN500 ·Applicable temperature: -20~100°C ·Valve body: cast iron/nodular cast iron ·Valve disc: EPDM wrapped

Characteristics

1. Swing check valve disc 90°C action provides better non-return function for clean fluid. 2. Stainless steel or bronze internals, high abrasion resistance, good sealing performance and strong corrosion resistance 3. Rubber disc swing check valve is on-off in 45°C, rapid and soundless, offering better on-return function for fluid with many foreign substances. 4. Rubber disc swing check valve is wrapped by EPDM or other materials suitable for different mediums. 5. The surface and internal of valve body are with epoxy resin corrosion-proof coating