• Tight Up to Set Pressure: Pilot control keeps high seat forces all the way to set point, helping eliminate product losses.
• Full Open at Set Point: Snap action opening permits full opening at set pressure, allowing for higher settings and overcoming freezing or sticking problems.
• Pop or Modulating Action: Pilot selection allows a choice between rapid snap opening action and proportional modulating action to best suit the process.
• Resilient Seats and Diaphragms: Extensive selection of seat and diaphragm materials to meet most conditions and provide long maintenance-free operation.
• Balanced Against Back Pressure: Valves can be connected to closed header systems without loss of valve lift or set pressure fluctuations.
• Remote Sensing: This option permits the pressure in the protected system to be accurately sensed at the PRV regardless of the inlet piping pressure losses to the PRV.
• Field Test Connection: Valve function can be verified in place without removing the valve to a test bench or raising process pressures.
• Manual Blowdown: The valve can be actuated manually or remotely to depressurize a system.
   

Sizes: 2" to 12"
Orifices: 3.35 to 113.0 in2 [21.61 to 729.03 cm2]
Temperature Range: -320 to +200°F [-196 to +93°C]
Pressure Range: 4" wc to 50 psig [10 mbarg to 3.45 barg]
Vacuum Range: -1 oz [-4.3 mbarg] full open weight loaded
Vacuum Range: -2 in wc to -5 psig pilot operated [-5 mbarg to -0.345 barg]
Code: ASME VIII [15 psig and above]