Overview
Normally open, single-seated, high pressure valve, provides proportional control of hot/cold water in air conditioner and fan coil units. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell devices.
Features
Small size permits installation where space is limited.Forged brass, straight-through body with end connections threaded for 45 degrees SAE flare fitting nuts.Spring-loaded, self-adjusting, Buna-N "V"-ring packing is replaceable without shutting system down.High-temperature rolling diaphragm actuator (aluminum cover) and high-temperature plastic diaphragm retaining cup with integral air connection for 1/4 in. (6 mm) O.D. plastic tubing.Integral seat and brass plug with removable composition disc provides equal percentage flow.Stainless steel stem, 3/16 in. (5 mm) diameter.
- Dimensions (in.) : 4 1/8 in. high x 3 1/8 in. wide
- Dimensions (mm) : 105 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 : Two-way
- Spring Range (psi) : 3 psi to 10 psi
- Spring Range (kPa) : 21 kPa to 69 kPa
- Air connections : Push on for 1/4 in. O.D. plastic tubing
- Capacity (Cv) : 0.63 Cv
- Capacity (Kv) : 0.54 Kv
- Valve Action : Proportional Normally Open
- Valve Type : Unitary
- Body Pressure (psi) : 250 psi
- Body Pressure (kPa) : 1724 kPa
- Maximum Diaphragm Pressure (psi) : 30 psi
- Maximum Diaphragm Pressure (kPa) : 205 kPa
- Controlled Fluid : Water
- Close-off Ratings at Branch Line Pressure : 130 psid at 13 psi
