The PWQ947F dynamic high-performance balancing valve is a high-end hydronic control valve that integrates motorized continuous modulation with dynamic pressure compensation capabilities. It is tailor-made for modern intelligent data center liquid cooling systems (such as Coolant Distribution Units - CDUs), super high-rise HVAC variable-flow water systems, smart microelectronics, and biopharmaceutical piping networks. Adopting a flanged connection profile, the valve incorporates an advanced pressure-balanced trim internally, which automatically neutralizes the impact of dynamic system differential pressure fluctuations on the flow, making the output flow rate purely dependent on the input control signal. Coupled with a high-precision smart electric actuator, it accepts 4-20mA, 0-10V analog signals, or Modbus bus communication to deliver precise linear or equal-percentage flow control across the full stroke, perfectly eliminating dynamic hydronic imbalance. It not only fulfills the strict requirements of variable-flow precision regulation and low pressure drop but also provides a bubble-tight complete shutoff function, delivering a perfect 2-in-1 integration of regulation and isolation for smart, energy-efficient green networks.

Product Diagram：PWQ947F High-Performance Pressure-Balanced Balancing Valve

1 . Dynamic Pressure Compensation & Anti-Interference: The valve features an internal pressure-balanced mechanism that self-adapts to counteract dynamic pressure fluctuations caused by the opening/closing of other branches. It locks the preset flow rate regardless of grid pressure shifts, entirely preventing hydronic cross-interference.

2 . Precision Motorized Linear Regulation: Equipped with a smart electric actuator supporting standard analog and digital bus controls, the relative flow rate exhibits an excellent equal-percentage or linear characteristic curve against the input signal. The streamlined flow path without dead zones ensures exceptionally high regulation accuracy.

3 . Resilient Bubble-Tight Complete Shutoff: Utilizing a high-density PTFE soft seal, this valve breaks through the structural limitations of conventional regulating or balancing valves that fail to close tightly. It serves as an absolute isolation valve during system shutdown or terminal equipment maintenance, achieving zero internal leakage.

4 . Highly Integrated to Simplify Piping: By seamlessly blending "dynamic balancing," "motorized modulation," and "tight shutoff" into a single valve body, it eliminates the need to install separate balancing and motorized control valves sequentially, greatly optimizing installation space and lowering hardware procurement costs.

5 . Superior Corrosion Resistance & Cleanliness: The valve body and all core moving parts are cast and machined from SS304 (16P) stainless steel. Long-term contact with hot/cold water, up to 50% concentration glycol solutions, or high-standard deionized water yields no rust or impurity precipitation, sustaining coolant loop cleanliness.

6 . Robust Flanged Profile & High Durability: Designed with standard flange interfaces, the optimized inner fluid channels minimize water resistance and yield an extremely low pressure drop when fully open. The heavy-duty design safely absorbs the frequent thermal and mechanical shocks of high-frequency variable-flow modulation.

Structure Diagram ：PWQ947F High-Performance Pressure-Balanced Balancing Valve

List of Component Names and Materials

Equal Percentage Flow Characteristic Curve Diagram

Performance Specification Sheet

Sensor performance parameters

Standard requirements for external dimensions

Design Standard: GB/T 12237, GB/T 19672, API 6D, ASME B16.34

Connection Flange: GB/T 9113, HG/T 20592, ASME B16.5

Inspection and Test: GB/T 13927, API 598, API 6D

Pressure-Temperature Rating: GB/T 12224, ASME B16.34, API 608

Outline Diagram ：PWQ947F High-Performance Pressure-Balanced Balancing Valve

Outline dimension table

△P: Pressure differential when the valve is fully open (Unit: KPa)

V: Rated flow rate when the pressure differential is △P (Unit: m3/h)

Kvs: The volumetric flow rate of the medium through the flow control valve when the valve is fully open, the pressure differential across the valve is 100KPa (1bar), and the density of the medium is 1g/cm3.

Due to the rapid R&D iteration speed of valve products from China Kaivex Valve Group Co., Ltd., the above technical parameters and specification documents, including product overview, features, parts materials, outline dimension charts, CAD drawings, and product instruction manuals, are for your reference only. For actual applications, please contact our valve sales engineers to obtain the support you need for free. Thank you!