Pneumatic valve sealing material used at home and abroad

use pneumatic valve sealing material at home and abroad are mainly rubber, plastics, composite materials, fiber and metal, etc. Nitrile butadiene rubber, NBR ( Code) , oil resistant, heat resistant, wear resistant, working temperature: - ℃ ~ ℃, used in the manufacture of o-ring, oil seal. Fluorine rubber, FKM ( Code) , heat, acid and alkali resistant, oil resistant, working temperature: - ℃ ~ ℃, high temperature resistant, chemical, fire resistant fluid. Ptfe ethylene: PYFE ( Code) , features: good chemical stability, heat resistance, cold resistance, high mechanical strength, high pressure resistance, good self-lubrication, working temperature: - ℃ ~ ℃. Main use: wear ring, ring, ring, etc. Polyacrylate rubber: ACM ( Code) And features: heat resistance than NBR, can in polar additives containing various kinds of pneumatic valves, oil hydraulic oil, lubricating oil and poor water resistance. POM, POM, Code) , characteristics: good oil resistance, heat resistance, abrasion resistance, compressive strength, impact resistance, good self-lubricating performance, size is stable, but poor flexible, working temperature: - ℃ ~ ℃. Purpose: to the ring, ring. Silicone rubber: MO& VMQ（ Code) , characteristics: good heat resistance, cold resistance, compression permanent deformation is small, but the low mechanical strength of pneumatic valves, working temperature: - ℃ ~ ℃.