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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
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 :
Spring Range (psi) :
2 psi to 5 psi
Spring Range (kPa) :
14 kPa to 34 kPa
Capacity (Cv) :
0.63 Cv
Capacity (Kv) :
0.54 Kv
Valve Type :
Body Pressure (psi) :
250 psi
Body Pressure (kPa) :
1724 kPa
Maximum Diaphragm Pressure (psi) :
30 psi
Maximum Diaphragm Pressure (kPa) :
205 kPa
Controlled Fluid :
Close-off Ratings at Branch Line Pressure :
130 psid at 8 psi

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