Dowty Seal, Buna, Edwards, EH Booster, QMB Blower, E1/E2M, Part# 2104008 – vacstellar

Description

This Edwards Dowty Seal (Part# 2104008) is made of Buna rubber. It fits EH Boosters (EH250, EH500), QMB Blowers (QMB250, QMB500), and E1/E2M pumps (E1M40, E2M40, E1M80, E2M80). It creates a leak-proof seal at threaded connections, preventing oil leaks and maintaining vacuum integrity A Dowty Seal is a special type of washer. It has a rubber O-ring bonded to a metal outer ring. You use it under bolts or plugs. When you tighten the bolt, the rubber squeezes and creates a tight seal. It stops oil from leaking out and air from leaking .