Test leak without gas supply (capillary leakage)
A test leak without gas supply consists of a glass capillary (4), in a stainless steel housing (5). On the gas entrance (6) and the gas release (3) sinter filter protect the capillary of contamination.
Test leak with helium supply
Test leaks with helium supply consist of a cylindrical stainless steel housing, which is filled with helium. In the inside is a diffusion leak, which is connected to a fitting over a lock valve.