Hydraulic Control Valve

Technical Requirement:
  1. Design & Manufacture: CJ/T 219
  2. Face-to-Face: Manufacturer standard
  3. End Flanges: GB/T 17241.6
  4. Inspection & Test: CJ/T 219 / GB/T 13927

Description

The Hydraulic Valve is a pilot-operated, diaphragm-actuated automatic control valve that uses line pressure to regulate the system. Fitted with a pressure-reducing pilot, it maintains a constant downstream pressure regardless of changes in upstream pressure or flow demand. The same main valve body can be configured with different pilots for float level control, pressure sustaining or flow control functions.

Technical Specifications:
  • Pressure Class: PN10 / PN16 / PN25
  • Size Range: DN50 – DN600
  • Applicable Medium: Clean water, raw water
  • Operating Temperature: 0°C to 80°C
Main Parts and Materials:
Parts NameMaterials
Body, CoverDuctile Iron QT450-10
Disc / SeatDuctile Iron / Stainless Steel with EPDM
DiaphragmNylon-reinforced NBR
Pilot & Needle ValveBrass / Stainless Steel
Control TubingCopper / Stainless Steel
Key Product Features:
  1. Stable Downstream Pressure: Pilot control keeps outlet pressure constant.
  2. Multi-Function Platform: Pressure reducing, sustaining, level or flow control by changing the pilot.
  3. No External Power: Fully hydraulic operation from system pressure.
  4. Adjustable Response: Needle valve sets opening and closing speed.
  5. Easy Monitoring: Inlet and outlet pressure gauges included.
Applications:

Ideal for Municipal Water Networks, High-Rise Building Zoning, Reservoir & Tank Filling, and Irrigation Systems. Specifically suited for automatic pressure and level control in water distribution.

Additional information

Standard

GB