Common sealing material of valve

Nitrile butadiene rubber: usually black, the color can be adjusted according to customer needs, but need to increase some cost, and will affect the effect of rubber. Nitrile butadiene rubber oil resistance and the use of temperature range to determine whether the seal material isNitrile butadiene rubber.

Silicone rubber has good heat resistance, cold resistance, oil resistance, chemical resistance, aging resistance, insulation, flame retardant performance. Widely used in the household electrical appliances industry, electronic industry, and human contact with a variety of supplies used in such aspects as seals or rubber parts;

Epdm has excellent ozone resistance, excellent corrosion resistance and heat resistance, and can be used for a long time at -60-120 degrees Celsius. Good water resistance and electrical insulation.

Ptfe has excellent chemical stability, corrosion resistance, weather resistance, high lubrication performance; The disadvantage is poor elasticity.