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SR04B Series FCU Valves

SR04B Series FCU Valves

SR04 series motorized valve is a shorter design against SR01 series motorized valve in order to meet different customers’ requirements on the cost.
Material Valve body: Forged brass
Seal: Nitrile butadiene rubber (NBR)
Cover: Aluminum
Chassis: Stainless steel
Working media Chilled/hot water
Media temperature 2~94℃ (36~201℉)
Body pressure 1.6Mpa (232psi)
Pipe connection: NPT(N), BSP(G), Sweat(S), Inverted Flare(I)
Sealing method Flat sealing
Power supply

24VAC(A1), 110VAC(A2), 120VAC(A3), 220VAC(A4),

230VAC(A5), 240VAC(A6), 50/60Hz

Power consumption 6.5W by hysteresis synchronous motor
Action time By motor: about 15s after power on
By spring: about 5s after power off
Operation method Normal-close(C), Normal-open(O), Bypass(B)
Working ambient temperature <40℃ (104℉)
Working ambient humidity 10~90% RH no condensation
Storage temperature -20~65℃ (-68~149℉)
Auxiliary micro-switch (S) 250VAC, 3A for optional

SR04B Series FCU Valves

Model Type Size Kvs Closing-off pressure (Mpa/psi)
SR04GC21520A4 2-way G1/2″/ 15mm 2.0 0.20/29
SR04GC21532A4 2-way G1/2″/ 15mm 3.2 0.15/22
SR04GB31543A4 3-way diverting G1/2″/ 15mm 4.3 0.10/15
SR04GC22020A4 2-way G3/4″/ 20mm 2.0 0.20/29
SR04GC22032A4 2-way G3/4″/ 20mm 3.2 0.15/22
SR04GB32046A4 3-way diverting G3/4″/ 20mm 4.6 0.10/15
SR04GC22557A4 2-way G1″/ 25mm 5.7 0.10/15
SR04GB32557A4 3-way diverting G1″/ 25mm 5.7 0.10/15
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