The Watts W-M116 Pressure Relief, Sustaining or Backpressure
Control Valve is designed to adjust, set and maintain piping
upstream pressure when it’s installed in the pipeline; while it is
installed in the by-pass line, the function is pressure relief. It’s
generally used in city water supply, industrial and agricultural
water transmission pipeline, etc.
The inlet side of the main valve connects to the pilot valve by control tube, when the pressure of inlet side
is greater than the set pressure value of pilot valve, the pilot valve opens, and the pressure of diaphragm
upper cavity is removed, then the main valve opens. The pressure of main valve reduces, when the
pressure drops to the set pressure, pilot valve closes, and the main valve closes.
Nominal Diameter: DN50~DN300
Maximum Working Pressure: 1.6MPa
Working Temperature: 0℃~80℃
Fluid Medium: Water
Pressure Regulating Range: 20PSI~200PSI (0.14MPa~1.4MPa)