Material

Valve body: Forged brass

Seal: Nitrile butadiene rubber (NBR)

Chassis and Cover: Fireproof ABS plastic

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

Rubber ball 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

Model

Type

Size

Kvs/Cvs

Closing-off pressure (Mpa/psi)

SR12GC21520A4

2-way

G1/2″/ 15mm

2.0/2.3

0.25/36

SR12GC21532A4

2-way

G1/2″/ 15mm

3.2/3.7

0.20/29

SR12GB31532A4

3-way diverting

G1/2″/ 15mm

3.2/3.7

0.20/29

SR12GC22032A4

2-way

G3/4″/ 20mm

3.2/3.7