What is a PICV (Pressure Independent Control Valve)

A Pressure Independent Control Valve is designed to combine the functions of three separate valves: a control valve, a balancing valve, and a differential pressure regulator. PICVs ensure a constant flow rate regardless of pressure fluctuations in the system.

Key Features:

• Combines control and balancing into a single body

• Maintains flow setpoint even with system pressure changes

• Typically used in fan coil units, chilled beams, and terminal units

• Compatible with modulating or on/off actuators

What is a PIBCV (Pressure Independent Balancing and Control Valve)

A Pressure Independent Balancing and Control Valve (PIBCV) offers additional precision in balancing, especially in large or complex networks. While it performs similar pressure-independent regulation, PIBCVs often emphasize manual or automatic presetting, aiding in system commissioning.

Key Features:

• Includes mechanical or digital flow setting capability

• Supports fine-tuned balancing adjustments

• Ideal for multi-zone systems or large buildings

• Enhanced for hydronic commissioning and diagnostics

PICV VS PIBCV

Application Scenarios

• Use PICV when you need reliable pressure-independent flow with simplified installation. Ideal for terminal units with stable load profiles.

• Use PIBCV when your system requires detailed commissioning, multiple load zones, or integration into a Building Management System (BMS) with monitoring and flow validation.