This series of high pressure metallic back pressure valves incorporates a Viton diaphragm, high pressure spring with aluminum metallic top and bottom discs.
The metallic top is made of aluminum, optional metallic materials available upon request
Optional top materials available under Top Options.
Viton diaphragm is the standard, optional diaphragm materials available upon request.
Refer to misc. options for additional accessories (i.e. gauges)