When your pressure instrumentation needs call for extreme dampening or corrosive/viscous media protection, a correctly specified diaphragm seal will fill your needs. As an authorized WIKA fill center, FloSource is capable of meeting all your diaphragm seal assembly needs. Our current inventory consists of stainless steel and Alloy 20 diaphragms in sizes: 1/4″ through 1″. Our current fill fluids are glycerine, silicone oil, and halocarbon liquid. These diaphragm seals can be mounted with pressure gauges, switches, and transmitters.