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Honeywell VP527 Pneumatic Water Valve

Pneumatic Water Valve
VP527

Normally open, single-seated, high pressure valve provides proportional control of hot and/or cold water in unit air conditioners and fan coil units. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell devices.

• Small size permits installation where space is limited.
• Forged brass, straight-through body with end connections threaded for 45 degrees SAE flare fitting nuts.
• Spring-loaded, self-adjusting, Buna-N “V”-ring packing is replaceable without shutting system down.
• High-temperature rolling diaphragm actuator (aluminum cover) and high-temperature plastic diaphragm retaining cup with integral air connection for 1/4 in. (6 mm) O.D. plastic tubing.
• Integral seat and brass plug with removable composition disc provides equal percentage flow.
• Stainless steel stem, 3/16 in. (5 mm) diameter.

Select a link under the "item" tab below to order.

Cat #(inch)(psi)(Cv)Type of End ConnectionClose-off Ratings at Branch Line Pressure
VP527A1018O.D.: 1/2 in.; Nominal: 3/8 in.3 psi to 10 psi0.63 Cv45 deg. SAE flare130 psid at 13 psi
VP527A1026O.D.: 1/2 in.; Nominal: 3/8 in.3 psi to 10 psi1.0 Cv45 deg. SAE flare45 psid at 13 psi
VP527A1034O.D.: 1/2 in.; Nominal: 3/8 in.3 psi to 10 psi1.6 Cv45 deg. SAE flare45 psid at 13 psi
VP527A1059O.D.: 1/2 in.; Nominal: 3/8 in.2 psi to 5 psi0.63 Cv45 deg. SAE flare130 psid at 8 psi
VP527A1067O.D.: 1/2 in.; Nominal: 3/8 in.2 psi to 5 psi1.0 Cv45 deg. SAE flare45 psid at 8 psi
VP527A1075O.D.: 1/2 in.; Nominal: 3/8 in.2 psi to 5 psi1.6 Cv45 deg. SAE flare45 psid at 8 psi
Valve Type: Unitary
Body Pattern: Two-way
Body Pressure: 250 psi (1724 kPa)
Air Connections: Push on for 1/4 in. O.D. plastic tubing
Valve Action: Proportional Normally Open
Controlled Medium: Water
Operating Humidity Range (% RH): 5 to 95% RH
Temperature Range: 35 F to 250 F (2 C to 121 C)
Maximum Safe Actuator Diaphragm Temperature: 230 F (110 C)
Maximum Diaphragm Pressure: 30 psi (205 kPa)


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