Shanghai Jianggong Valve Manufacturing Co., Ltd.
                                                                                                           
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34 Years
Since 1992
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ZY47F Flange Connection Adjustable Differential Pressure Control Valve 50-300mm DN 1.6MPa PN

Price Negotiable
Price: USD85.9/Set - 7889.9/Set
MOQ: 1 Set
Delivery Time: 14 days
Brand: JGPV
Product Description
Ductile Iron Flange Connection Adjustable Differential Pressure Control Valve
The ZY47F series adjustable differential pressure control valve is a hydraulic condition balancing valve that automatically maintains constant pressure difference in heating and water systems. This self-regulating valve operates without external energy, using pressure changes in the controlled medium for automatic adjustment.
Technical Specifications
Parameter Specification
Nominal Diameter (DN) 50-300 mm
Nominal Pressure (PN) 1.6 MPa
Strength Test Pressure 2.4 MPa (Water)
Sealing Test Pressure 1.76 MPa (Water)
Material Ductile Iron
Sealing Material NBR, EPDM
Construction Type Pass-through
Working Temperature 0-80°C
Connection Method Flange
Application Fields Hydraulic Engineering, HVAC, Water Supply
Key Features & Benefits
  • Self-powered operation using controlled medium pressure changes for automatic adjustment
  • Dual resolution structure with compact design and minimal valve stem imbalance force
  • Maintains constant pressure difference in controlled systems with 25:1 adjustable pressure ratio
  • Internal self-adjustment capability reduces external network pressure fluctuations
  • Automatically eliminates pipeline residual pressure head and flow deviation
  • Provides constant user inlet and outlet pressure difference with anti-clogging function
Operating Principle
The valve consists of a dual-channel automatic regulating valve and a controller separated by a diaphragm. When system resistance changes due to user adjustments, the pressure difference between supply (P1) and return (P2) water drives the regulating valve until pressure balance is achieved, ensuring stable system performance.

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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shanghai Jianggong Valve Manufacturing Co., Ltd.
Location No. 5089, Nanzhu Road, Zhuqiao Town, Pudong New Area, 201324, P. R. China
Contact Person David Chen

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