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Environmental & Combustion Controls
VP527A1067
Two-way, Unitary, O.D.: 1/2 in. (12.7 mm); Nominal: 3/8 in. (9.5 mm), 1.0 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), 1.0 Cv, Water
Body Pattern Two-way
Capacity (Cv) 1.0 Cv
Capacity (Kv) 0.86 Kv
Spring Range (psi) 2 psi to 5 psi
Spring Range (kPa) 14 kPa to 34 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 45 psid at 8 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
14004932-001 - Pneumatic Valve Adapter (M6410/M7410 linkage and a green main spring to allow to retrofit an electric actuator)