Pressure-independent control valve

A pressure-independent control valve is a control category intended to reduce the effect of differential-pressure variation on regulated flow, but products achieve this in different ways. The current name does not establish an HVAC-only application, pressure range, cartridge, or balancing mechanism. Control range, pressure reference, actuator, commissioning method, and hydraulic conditions must come from the actual model datasheet.

Application and duty

Flow control in variable-pressure networks after product mechanism and range are verified

TECHNICAL REFERENCE

Selection summary

Continuous modulation of flow, pressure, temperature or level with the required flow characteristic

Control-valve selection requires capacity sizing plus cavitation, flashing, noise, velocity and rangeability checks; line size alone does not determine valve size.

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