The Honeywell VPE25M25BL valve is a pressure-independent control valve (PICV) from the VPE series, designed for hydraulic balancing and flow control in heating, cooling and fan coil systems. Thanks to its integrated differential pressure control, it ensures a constant flow rate regardless of pressure fluctuations in the pipe network, eliminating the need for a separate balancing valve.

The VPE25M25BL model is supplied without an actuator (BL = without actuator, with G1" female thread, DN25), with a maximum adjustable flow rate of 2,500 l/h. The flow rate can be adjusted externally using a special key, even while the system is in operation, without interrupting the flow of the medium. The valve body, made of durable DZR brass, ensures a long service life even under conditions of degraded circulating medium.

The VPE series features a unique differential pressure regulator design that can be inspected and flushed, allowing the valve to operate reliably even with an increased content of iron oxides in the water (up to 900 ppm according to Honeywell internal tests, in accordance with VDI 2035). The valve is fully compatible with Honeywell M6410, M7410, MLP and other series of electric actuators.

Features and benefits

• Integrated pressure control – eliminates the need for a separate balancing valve
• Constant flow rate with differential pressure fluctuations of 16–800 kPa
• External flow adjustment during operation without interrupting the system
• Inspectable and flushable pressure regulator – resistant to impurities
• Operation with heavily contaminated medium (up to 900 ppm Fe₂O₃) in accordance with VDI 2035
• Shut-off tightness Class IV according to IEC 60534-4 (0.01% Kvs)
• Linear control characteristic (reprogrammable to equal percentage via actuator)
• Rangeability 100:1, control range 1:1,000 according to IEC 60534
• DZR brass body (ASTM CuZn36Pb2As) – high resistance to dezincification
• Built-in measuring ports for on-site flow verification
• Compatible with the full range of Honeywell actuators (M6410, M7410, MLP series)
• UL & CE certification for actuators; actuator enclosure rating IP54