Sustaining Con. Head Pilot Op. Float Valve

Sustaining Constant Head Pilot Operated Float Valve (DH)

Product Code: DH

Basic Applications:

The Constant Head Pilot Operated Float Valves With Sustaining Valve are used with reservoir tanks to maintain water levels.

Product Description:

These pilot valves are designed to fully open when the water level reaches the preset low level and to close drip-tight when the level reaches the preset high point. In addition they maintain a constant inlet pressure.

Features:

  • Fully Adjustable
  • Durably Constructed
  • Material Prevents Rust Contamination
  • Easy Installation and Maintenance
  • Adjustable flow rate
The opening and closing function of the main valve is controlled by the pressure that goes through the diaphragm chamber from the inlet side of the main valve to the pilot valve. When the water level rises to the close position of the pilot valve, the inlet pressure remains inside the diaphragm chamber of the main valve; thus pressure pushes the diaphragm downwards and the valve seat will be closed. After the water level drops to the open position of the pilot valve, the pressure remaining inside the diaphragm chamber will be discharged into the tank. Then the inlet pressure pushed the diaphragm upwards and the valve seat till open.
 
The DH unit is equipped with a Sustaining Valve. This valve ensures that the inlet pressure never goes below a specified level. Thus ensuring the constant supply of water to the entire system, solving the system problem of peak-cut.
 
The DH is also equipped with a perforated strainer that lengthens the life of the diaphragm. The adjustable spindle enables full control of the flow rate. The top cover features easy access for maintenance.

Specifications:

Applicable Fluid: Water
Working Temperature: 0 to 80°C
Working Pressure (inlet): 0.05 to 1.0 MPa
Set Pressure Range: (Choice of spring range)
0.05 to 0.1 MPa,
0.1 to 0.35 MPa,
0.35 to 0.55 MPa

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