Combination washer

It is integrally vulcanized by a rubber ring and a metal ring. It is a sealing ring for sealing threads and flanges. The ring consists of a metal ring and a rubber gasket. The metal ring is rust-proof, and the rubber ring is generally made of oil-resistant nitrile rubber or fluororubber. The combination pad is available in both metric and imperial sizes and has a combination of metal pad and rubber in the standard JB982-77 combination pad. The combination sealing gasket is used for the sealing of the threaded pipe joint and the screw plug. It is generally used together with the ferrule type pipe joint to block the oil port, and is mainly used for the static sealing of the end face of the screw connection of the hydraulic valve pipe joint, and is suitable for the British and American standards. Inch thread and static sealing of the end face of the French and German standard metric thread joints. The combination sealing gasket can be divided into A type and B type according to the structural form; it can be divided into all-inclusive and semi-package according to different rubber coating.