Butterfly valve rubber seat is used on butterfly valve. It’s not an universal product, since each brand butterfly valve is different on details. If the detail parts can’t match, there will be leakage.
Depending on the fluid passing through and the way it’s used, the material of butterfly valve rubber seat can be pure rubber, PTFE bonded rubber, metal bonded rubber, PTFE.
As for rubber types, FKM, EPDM, NBR are the most common used. For more choices, contact Jiacheng New Material (SJK) for consult. We will suggest you the best cost material according to your working conditions.