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Premier Control Technologies Fluid Solutions

Jordan Valve Mark 608 Series Gas Pressure Regulators

  • Self-operated with no need for an external power source
  • Extra-large diaphragm provides greater sensitivity and accuracy
  • Setpoint range of 2" w.c. to 5psi (5.0 mbar to 0.34 bar)

The Mark 608 series from Jordan valve is a gas pressure regulator which has been designed to be easy to use and adapt to a range of low pressure gas regulation.


A primary application of the Mark 608 is in tank blanketing where the blanketing gas flow is regulated and kept fresh with further flow of gas.

It is designed to be completely self operated which means that there is no need for an external power source as well as a standard extra large diaphragm to allow for greater accuracy.

Pressure and temperature ranges

The set point range is between 2" w.c. to 5 psi (5mbar to 0.34 bar) and the maximum inlet pressure is 4 bar.

Due to the soft elastomer plug, the shutoff on the Mark 608 is rated to ANSI Class VI and the device has also been ATEX certified. Temperature rating goes up to 135°C and the downstream pressure cannot exceed 1.7 bar (25psig).

Body and materials

A range of materials can be used to fit the application. The body can be either Bronze, Carbon Steel or Stainless steel. Diaphragm materials that are available are Buna-N/Nylon, Viton/Nomex or EPDM with polyester reinforcement. The regulator can be sized to 1 and ½" or 2" (DN40 – DN50).

Data sheets and manuals


Richards Industrials