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Environmental & Combustion Controls
VP531C1042
Two-way, Unitary, O.D.: 7/8 in. (22.2 mm); Nominal: 3/4 in. (19.1 mm), 2.6 Cv, Steam or Water

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Overview
Normally-open, single-seated valve provides proportional control of steam or hot or cold water in terminal 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 + $280.08
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Features

• Available in several capacities and spring ranges for various application requirements.
• Easily replaceable actuator assembly for convenience of service.
• Compact size for use inside most unit enclosures.
Product Specifications  Back To Top
Description Two-way, Unitary, O.D.: 7/8 in. (22.2 mm); Nominal: 3/4 in. (19.1 mm), 2.6 Cv, Steam or Water
Body Pattern Two-way
Capacity (Cv) 2.6 Cv
Capacity (Kv) 2.24 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 Solder
End Connection Size (in.) O.D.: 7/8 in.; Nominal: 3/4 in.
End Connection Size (mm) O.D.: 22.2 mm; Nominal: 19.1 mm
Body Pressure (psi) 150 psi
Body Pressure (kPa) 1034 kPa
Maximum Diaphragm Pressure (psi) 30 psi
Maximum Diaphragm Pressure (kPa) 205 kPa
Dimensions (in.) Pipe centerline to top of actuator: 3 1/2 in. Face-to-face: 3 1/32 in.
Dimensions (mm) Pipe centerline to top of actuator: 89 mm; Face-to-face: 77 mm
Temperature Range (F) 40 F to 240 F (140 F max difference, alternating hot and cold water service)
Temperature Range (C) 4 C to 116 C (78 K max difference, alternating hot and cold water service)
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 Steam
Controlled Medium Water
Operating Humidity Range (% RH) 5 to 95% RH
Includes 3-10 psi spring is packed in box
Comments Replacement for VP531A1103 and VP531A1111
Close-off Ratings at Branch Line Pressure 70 psid at 20 psi (with 2 to 5 psi spring)

Literature and other Resources Download Back To Top
Specification Data - (VP531A Terminal Unit Valves - English/French)
Installation Instructions - (VP531A Pneumatic Terminal Unit Valves English/French)
Installation Instructions - (VP531C Valve Rebuild Kits - English/French)
Service Data - (VP531A Pneumatic Terminal Unit Valve)
VP531C close off ratings. Graph(LineArt)
VP531C close off ratings. Graph(LineArt - Web Quality Image)
VP531A, C solder body connection. Installation(LineArt)
VP531A, C solder body connection. Installation(LineArt - Web Quality Image)
Typical operation of V531 Wiring(LineArt)
Typical operation of V531 Wiring(LineArt - Web Quality Image)
Proper screwed valve installation practice. Multiple Parts(LineArt)
Proper screwed valve installation practice. Multiple Parts(LineArt - Web Quality Image)
VP531A close off ratings. Graph(LineArt)
VP531A close off ratings. Graph(LineArt - Web Quality Image)
VP531C close off ratings. Graph(LineArt)
VP531C close off ratings. Graph(LineArt - Web Quality Image)
Approximate dimensions of VP531A, C Dimension(LineArt)
Approximate dimensions of VP531A, C Dimension(LineArt - Web Quality Image)
VP531A, C solder body connection. Installation(LineArt)
VP531A, C solder body connection. Installation(LineArt - Web Quality Image)
Typical operation of V531 Wiring(LineArt)
Typical operation of V531 Wiring(LineArt - Web Quality Image)
Proper screwed valve installation practice. Multiple Parts(LineArt)
Proper screwed valve installation practice. Multiple Parts(LineArt - Web Quality Image)
Approximate dimensions of VP531A, C Dimension(LineArt)
Approximate dimensions of VP531A, C Dimension(LineArt - Web Quality Image)
VP531C Close-off Rating Graph(LineArt)
VP531C Close-off Rating Graph(LineArt - Web Quality Image)
Pneumatic Terminal Unit Valve Dimension(LineArt)
Pneumatic Terminal Unit Valve Dimension(LineArt - Web Quality Image)
VP531A close off ratings. Graph(LineArt)
VP531A close off ratings. Graph(LineArt - Web Quality Image)
Typical Piping for VP531C Pneumatic Terminal Unit Valve Wiring(LineArt)
Typical Piping for VP531C Pneumatic Terminal Unit Valve Wiring(LineArt - Web Quality Image)
Pneumatic Terminal Unit Valve Main(Photo_BW - Web Quality Image)
Pneumatic Terminal Unit Valve Main(Photo_BW - Print Quality Image)
Pneumatic Terminal Unit Valve Main(Photo_Color - Web Quality Image)
Pneumatic Terminal Unit Valve Main(Photo_Color - Print Quality Image)
Pneumatic Terminal Unit Valve Main(Photo_BW - Web Quality Image)
Pneumatic Terminal Unit Valve Main(Photo_BW - Print Quality Image)
Pneumatic Terminal Unit Valve Main(Photo_Color - Web Quality Image)
Pneumatic Terminal Unit Valve Main(Photo_Color - Print Quality Image)
Pneumatic terminal unit valve Ad Slick(LineArt)
Pneumatic terminal unit valve Ad Slick(LineArt - Web Quality Image)
Close-off ratings for VP531 Pneumatic Terminal Unit Valve Graph(LineArt)
Close-off ratings for VP531 Pneumatic Terminal Unit Valve Graph(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)