Commercial Building Controls : Pneumatic Products : Pneumatic Valves : VP526 : VP526A1084/U
Three-way mixing, unitary water valve with 1/2 in. O.D. and 1.0 Cv capacity
Overview
Three-way pneumatic mixing valve provides proportional control of hot and/or cold water in unit air conditioners and fan coil systems. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell devices.
Features
- Small size permits installation where space is limited.
- Direct-acting, rolling diaphragm actuator with integral high temperature plastic air connector for 1/4 in. (6-mm) O.D. plastic tubing.
- Spring loaded, self-adjusting Buna-N "V"-ring packing replaceable.
- Brass seats (integral lower, removable upper) and contoured plug provide metal-to-metal seating.
- Stainless steel stem.
- Linear and constant total flow throughout full plug travel.
Product Specifications
- Dimensions (in.)
- 4 7/8 in. high x 3 1/8 in. wide
- Dimensions (mm)
- 124 mm high x 79 mm wide
- Temperature Range (F)
- 35 F to 250 F; Maximum Safe Actuator Diaphragm Temperature--230 F
- Temperature Range (C)
- 2 C to 121 C; Maximum Safe Actuator Diaphragm Temperature--110 C
- Operating Humidity Range (% RH)
- 5 to 95% RH
- Connection Size (in.)
- O.D.: 1/2 in.; Nominal: 3/8 in.
- Connection Type
- 45 deg. SAE flare
- Body Pattern
- Three-way Mixing
- 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)
- 1.0 Cv
- Capacity (Kv)
- 0.86 Kv
- Valve Action
- Proportional Normally Open Ports B to AB
- Valve Type
- Unitary
- Body Pressure (psi)
- 250 psi
- Body Pressure (kPa)
- 1724 kPa
- Maximum Diaphragm Pressure (psi)
- 29 psi
- Maximum Diaphragm Pressure (kPa)
- 200 kPa
- Controlled Fluid
- Water
- Close-off Ratings at Branch Line Pressure
- 5 psid at 0 psi for Port A,50 psid at 12 psi for Port B
