This valve is also called “OR valve”. As the air is supplied to either IN side, it is output from the OUT side. When the air pressure levels are different, the air with higher pressure flows to the OUT side. Max. operating pressure Min. operating pressure Ambient and fluid temperature Flow-rate characteristics Port size Weight Model VR1210-01 VR1220-02 1.0 MPa 0.05 MPa .5 to 60°C (No freezing) 24 g 45 g Symbol Model/Specifications Relay valves for controlling the pneumatic signal lines. b C[dm3/(s・bar)] 1.3 0.2 2.9 0.2 (IN) (IN) (OUT) 1 2 1 1 8 1 4 Nil Thread type Rc VR12 0 01 NPT VR 1210 VR 1220 N F G 01 Port size 1 8 1 8 02 1 4 1 2 Body size 1 4 1 No. 2 1 ADC Brass 4 3 NBR IN SMC OUT IN 38 17.2 16 29 3 x 1/8 16 16 50 20 21 38 20 3 x 1/4 21.2 IN SMC IN OUT How to Order Construction Dimensions VR1210 VR1220 Component Parts Transmitters: Shuttle Valve Series VR1210/1220 standard standard (Low pressure side) (High pressure side) (Low pressure side) (High pressure side) Description When right port has higher pressure When left port has higher pressure Description Valve body Valve guide Material Note No. Valve O-ring Material Brass, NBR Note 6.6 mounting hole 5.5 mounting hole Applicable model Platinum silver RoHS 2363 VM VMG VR51 VHK VH VHS�ｮ VHS VR