- Model 97177 - Double Port Regulator

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The Shand & Jurs Biogas 97177 Double Ported Regulator provides sensitive control at a preset upstream or downstream pressure (up to 20' w. c.) in biogas lines such as those in low pressure digesters, landfills, lagoons and other fermentation processes. The regulator is a balanced, double ported valve that is actuated through a mechanical offset by a large spring-loaded diaphragm. The valve can be configured as a backpressure (upstream) regulator to provide reliable control of gas flow or as a pressure reducing (downstream) regulator, which will maintain a constant downstream pressure.

Backpressure Regulator: Valve opens when upstream pressure exceeds set point. Pressure Reducing Regulator: Valve opens when downstream pressure drops below set point.

Field adjustment of the set point is easily done by adjustment of the diaphragm spring, which is provided with a visual indicator.

The valve is available in two standard pressure ranges from 1' to 10' w. c. and 10' to 20' w. c. Standard sizes are 2' through 8' flanged connections with optional 1' NPT connection available (consult factory). A 1' NPT external sense connection is provided. Connection should be made a minimum of 10 feet from the regulator.

The Shand & Jurs 97177 is especially designed for hydrogen sulfide and hot, wet methane, which are the main components of digester gas streams in municipal wastewater treatment facilities. Standard materials of construction include aluminum, carbon steel or cast iron body with aluminum diaphragm housing (consult factory for other materials). All internal trim material is constructed from 304 stainless steel. The standard diaphragm material is Nylon reinforced Buna N with optional Viton and Teflon materials available (consult factory). The combination of these components will withstand the severest of process environments.

The 97177 is 100% U.S. made.

  • Upstream or Downstream Control
  • Balanced Double Port/Plug Design
  • Large Diaphragm for Increased Sensitivity
  • Externally Adjustable Set Point with Visual Indicator
  • Fewer Moving Parts for Longer Service Life
  • No External Power Source Required

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