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Environmental & Combustion Controls
VP527A1018
Two-way, Unitary, O.D.: 1/2 in. (12.7 mm); Nominal: 3/8 in. (9.5 mm), 0.63 Cv, Water

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Overview
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.

Product Prices
Package Type Product Base Price($) Order Quantity
U
1 + $274.50
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Features

• 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.
Product Specifications  Back To Top
Description Two-way, Unitary, O.D.: 1/2 in. (12.7 mm); Nominal: 3/8 in. (9.5 mm), 0.63 Cv, Water
Body Pattern Two-way
Capacity (Cv) 0.63 Cv
Capacity (Kv) 0.54 Kv
Spring Range (psi) 3 psi to 10 psi
Spring Range (kPa) 21 kPa to 69 kPa
Valve Action Proportional Normally Open
Valve Type Unitary
Type of End Connection 45 deg. SAE flare
End Connection Size (in.) O.D.: 1/2 in.; Nominal: 3/8 in.
End Connection Size (mm) O.D.: 12.7 mm; Nominal: 9.5 mm
Body Pressure (psi) 250 psi
Body Pressure (kPa) 1724 kPa
Maximum Diaphragm Pressure (psi) 30 psi
Maximum Diaphragm Pressure (kPa) 205 kPa
Dimensions (in.) 4 1/8 in. high x 3 1/8 in. wide
Dimensions (mm) 105 mm high x 79 mm wide
Temperature Range (F) 35 F to 250 F
Temperature Range (C) 2 C to 121 C
Maximum Safe Actuator Diaphragm Temperature (F) 230 F
Maximum Safe Actuator Diaphragm Temperature (C) 110 C
Air connections Push on for 1/4 in. O.D. plastic tubing
Controlled Medium Water
Operating Humidity Range (% RH) 5 to 95% RH
Close-off Ratings at Branch Line Pressure 130 psid at 13 psi

Literature and other Resources Download Back To Top
Installation Instructions - (VP527 Valve Rebuild Kits - English/French)
Installation Instructions - (VP527A Pneumatic Water Valve English/French)
Service Data - (VP527A Pneumatic Water Valve)
Specification Data - (VP527A Pneumatic Water Valve)
Pneumatic Water Valve Dimension(LineArt)
Pneumatic Water Valve Dimension(LineArt - Web Quality Image)
Close-off Ratings for VP527 Pneumatic Valve Graph(LineArt)
Close-off Ratings for VP527 Pneumatic Valve Graph(LineArt - Web Quality Image)
Typical piping for VP527 Pneumatic Valve Wiring(LineArt)
Typical piping for VP527 Pneumatic Valve Wiring(LineArt - Web Quality Image)
VP527A dimensions in in. (mm) Dimension(LineArt)
VP527A dimensions in in. (mm) Dimension(LineArt - Web Quality Image)
Pneumatic Water Valve Main(Photo_BW - Web Quality Image)
Pneumatic Water Valve Main(Photo_BW - Print Quality Image)
Pneumatic Water Valve Main(Photo_Color - Web Quality Image)
Pneumatic Water Valve Main(Photo_Color - Print Quality Image)
Valve Rebuild Kit Exploded(LineArt)
Valve Rebuild Kit Exploded(LineArt - Web Quality Image)
Pneumatic Water Valve Ad Slick(LineArt)
Pneumatic Water Valve Ad Slick(LineArt - Web Quality Image)
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Dimensional Diagram
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Product Accessories
14003648-001 - Vandalism Resistant Assembly, Cover assembly with 1/8 in NPT air Connection and push-in retainer to replace standard Cover
14004932-001 - Pneumatic Valve Adapter (M6410/M7410 linkage and a green main spring to allow to retrofit an electric actuator)