Overview
Single-seated, straight-through, pneumatic valves used for proportional control of unit air conditioners using hot and/or chilled water. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell devices.
Features
- Available in normally-open (A models) or normally-closed models (B models).
- Straight-through pattern.
- Rotating actuator for aligning air connection with control air piping.
- Molded replaceable composition disc for tight shut-off.
- Flare tube connections.
- Small physical size.
Product Specifications
- Dimensions (in.)
- 6 7/8 in. high x 5 1/8 in. diameter
- Dimensions (mm)
- 175 mm high x 130 mm diameter
- Temperature Range (F)
- 40 F to 240 F; Maximum Actuator Temperature--160 F
- Temperature Range (C)
- 4 C to 116 C; Maximum Actuator Temperature--71 C
- Operating Humidity Range (% RH)
- 5 to 95% RH
- Connection Size (in.)
- O.D.: 5/8 in.; Nominal: 1/2 in.
- Connection Type
- 45 deg. SAE flare
- Body Pattern
- Two-way, Straight-through, Offset
- Spring Range (psi)
- 9 psi to 13 psi
- Spring Range (kPa)
- 62 kPa to 90 kPa
- Air connections
- 1/8 in. NPT
- Capacity (Cv)
- 2.5 Cv
- Capacity (Kv)
- 2.16 Kv
- Valve Action
- Proportional Normally Closed
- Valve Type
- Unitary
- Body Pressure (psi)
- 250 psi
- Body Pressure (kPa)
- 1724 kPa
- Maximum Diaphragm Pressure (psi)
- 25 psi
- Maximum Diaphragm Pressure (kPa)
- 172 kPa
- Controlled Fluid
- Water
- Close-off Ratings at Branch Line Pressure
- 50 psid (345 kPa) at 7 psi (48 kPa)
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