O-ring Material performance analysis:

Nitrile butadiene rubber (NBR) ： Main characteristics: Oil resistant and wear-resistant; Hardness: Normal 70 degrees; Service temperature: 20 to 100 degrees below zero;

EPDM ： Main characteristics: No oil resistance, wear resistance and aging resistance; Hardness: Normal 70 degrees; Service temperature: - 30 to 120 degrees below zero;

Fluorocarbon (FKM) ： Main characteristics: Oil resistant, abrasion resistant, acid and alkali resistant; Hardness: Conventional 75 degrees; Service temperature: 20 to 200 degrees below zero;

Perfluoroether rubber (FFKM): Main characteristics : Excellent performance and high price; Hardness: Conventional 75 degrees; Service temperature: Normal 250 degrees;