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Environmental & Combustion Controls
VP522B1003
Three-way Diverting, Sequencing, Unitary, O.D.: 1/2 in. (12.7 mm); Nominal: 3/8 in. (9.5 mm), Port A: 1.5 Cv, Port B: 1.5 Cv, Water

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Overview
Three-pipe, sequencing, pneumatically operated water valve for controlling both hot and cold water flow in fan-coil and induction 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 + $523.11
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Features

• Corrosion resistant.
• Molded-in composition discs for tight shutoff.
• Flare connections for easy installation.
• Operator rotates 360 degrees for convenient air piping alignment.
Product Specifications  Back To Top
Description Three-way Diverting, Sequencing, Unitary, O.D.: 1/2 in. (12.7 mm); Nominal: 3/8 in. (9.5 mm), Port A: 1.5 Cv, Port B: 1.5 Cv, Water
Body Pattern Three-way Diverting, Sequencing
Capacity (Cv) Port A: 1.5 Cv, Port B: 1.5 Cv
Capacity (Kv) Port A: 1.3 Kv, Port B: 1.3 Kv
Spring Range (psi) Adjustable
Spring Range (kPa) Adjustable
Valve Action Diverting/Sequencing
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) 25 psi
Maximum Diaphragm Pressure (kPa) 172 kPa
Dimensions (in.) 9 7/8 in. high x 5 1/8 in. diameter
Dimensions (mm) 257 mm high x 130 mm diameter
Temperature Range (F) 35 F to 250 F
Temperature Range (C) 2 C to 121 C
Maximum Actuator Temperature (F) 160 F
Maximum Actuator Temperature (C) 71 C
Air connections 1/8 in. NPT
Controlled Medium Water
Operating Humidity Range (% RH) 5 to 95% RH
Close-off Ratings at Branch Line Pressure 15 psid at 13 psi

Literature and other Resources Download Back To Top
Service Data - (VP522A Sequencing Water Valve)
Specification Data - (VP522A Sequencing Water Valves)
Installation Instructions - (VP522A Sequencing Water Valve)
VP522 Pneumatic Sequencing Water Valve Dimensions Dimension(LineArt)
VP522 Pneumatic Sequencing Water Valve Dimensions Dimension(LineArt - Web Quality Image)
VP522 Operating Sequence on Control Air Pressure increase Chart(LineArt)
VP522 Operating Sequence on Control Air Pressure increase Chart(LineArt - Web Quality Image)
Pneumatic Sequencing Water Valve Dimension(LineArt)
Pneumatic Sequencing Water Valve Dimension(LineArt - Web Quality Image)
Typical Piping for VP522 Pneumatic Sequencing Water Valve Installation(LineArt)
Typical Piping for VP522 Pneumatic Sequencing Water Valve Installation(LineArt - Web Quality Image)
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