Series 620

The Series 620 are high purity two stage regulators designed for non-corrosive gases requiring precise and stable delivery pressure control. These regulators provide constant outlet pressure regardless of inlet pressure fluctuations.

This regulator features a unique, specially designed stainless steel diaphragm that gives maximum accuracy and provides stable regulation of delivery pressure.

A nickel plated brass, diffusion resistant, packless diaphragm shut-off valve is available for flow control and to maintain system purity.

Captured 1/16” FNPT vent ports are provided for both stages to allow for venting of hazardous gases in the event of a diaphragm failure. This regulator is capable of withstanding internal vacuums during purging operations.

Series 620 Design Features

  • Filtered seat for added gas stream purity
  • Stainless steel diaphragm
  • Metal to metal body to diaphragm seal
  • 2 1/2˝single scale gauge
  • 316 stainless steel filter
  • Brass nickel plated bar stock body
  • Capturable vent in bonnet (1/16˝ FNPT)
  • Threaded front and rear bonnet for panel mounting