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Water Pressure Balancing Valve

Water Pressure Balancing Valve

PHF-DDY series water pressure balancing valve is used for terminal flow control and regulation of fan coil units, cold ceilings and other HVAC systems in HVAC systems.
PHF-DDY valves are not affected by system pressure changes and can ensure full-stroke regulation control at any flow rate.
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 Water Pressure Balancing Valve｜Product Features

  • P/T measuring ports are available.

  • The valve characteristics are not affected by the flow setting size.

  • It is composed of an adjustable flow dynamic balancing valve, a dynamic pressure difference balancing valve and a regulating valve with full stroke adjustment capability, integrating three valves in one. (PICV)

  • It can achieve 100% adjustment and balance of water volume in the system, while creating a more comfortable environment and energy-saving effect. When the system is rebuilt again, it does not need to be hydraulically balanced again.

product-640-640

 

Order code Product model Specification Diameter Connection thread Dimensions Kv value Stroke Recommended adapter driver
L H H1
14136 PHF-DDY-20L 2 way DN20 G3/4 85 178 192 2 3 DRQ-1K
14137 PHF-DDY-25L 2 way DN25 G1 85 195 203 2 3 DRQ-1K
14138 PHF-DDY-32L 2 way DN32 G1-1/4 120 226 245 4 6 DFQ-JL
14139 PHF-DDY-X40L 2 way DN40 G1-1/2 140 265 240 14 20 DFQ-S1000X
14140 PHF-DDY-X50L 2 way DN50 G2 140 290 250 14 20 DFQ-S1000X

 

 

Installation Instructions

 

 

● This valve is compatible with Siemens actuators.
● The valve stem moves downwards in the direction of valve closing.
● Before installing the valve, ensure that the pipeline is clean and free of scale, metal flakes and other debris left during welding.
● The pipeline must be concentric when connected to the valve body and not subject to vibration. The water flow direction should be consistent with that marked on the valve body.
● When the actuator is installed vertically on the valve body, avoid installing the actuator under the valve and leave enough space for daily maintenance (such as disassembling the actuator).
● When maintaining the valve, the power supply must be cut off or isolated, and the water system should not be under pressure.

 

FAQ

 

1.Can the water pressure balancing valve accurately control water flow?
Yes, it relies on the electric actuator and sensor to work together to accurately adjust the water flow according to system requirements and improve energy efficiency.

 

2.Can the pressure balancing valve be used in low-pressure systems?
Yes, although it is usually used in medium and high-pressure systems, it can also adapt to the needs of low-pressure water systems by setting valve parameters.

 

3.Will the water pressure balancing valve automatically reset when the power is off?
Depending on the design, some electric balancing valves will remain in their original state after power failure, while others will automatically reset to the default position or closed state.

 

4.Does the electric actuator of the hydraulic electric balancing valve require regular maintenance?
Yes, the electric actuator should be regularly checked for its electrical connections, mechanical operation, and cleaned of dust to ensure stable operation.

 

5.How to deal with the scale problem of the hydraulic electric balancing valve?
Regularly cleaning the scale inside the pipe and valve body can prevent the scale from affecting the sealing and accuracy of the valve, especially in hard water environments.

 

 

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