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.
- 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) : 1.0 Cv
- Capacity (Kv) : 0.86 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)
