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.
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.
- Dimensions (in.) : Pipe centerline to top of actuator: 3 1/2 in. Face-to-face: 2 9/32 in.
- Dimensions (mm) : Pipe centerline to top of actuator: 89 mm, Face-to-face: 58 mm
- Includes : 3-10 psi spring is packed in box
- Comments : Replacement for VP531A1020 and VP531A1038
- Operating Humidity Range (% RH) : 5 to 95% RH
- Connection Size (in.) : 1/2 in.
- Connection Type : NPT
- Body Pattern : Two-way
- Spring Range (psi) : 2 psi to 5 psi
- Spring Range (kPa) : 14 kPa to 34 kPa
- Air connections : Push on for 1/4 in. O.D. plastic tubing
- Capacity (Cv) : 2.3 Cv
- Capacity (Kv) : 1.99 Kv
- Valve Action : Proportional Normally Open
- Valve Type : Unitary
- Body Pressure (psi) : 150 psi
- Body Pressure (kPa) : 1034 kPa
- Maximum Diaphragm Pressure (psi) : 30 psi
- Maximum Diaphragm Pressure (kPa) : 205 kPa
- Controlled Fluid : Steam,Water
- Close-off Ratings at Branch Line Pressure : 70 psid at 20 psi (with 2 to 5 psi spring)
