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KONAN ELECTRIC CO., LTD is a Japanese leading manufacturer and supplier of Pneumatic and Hydraulic Fluid Components for factory automation and energy-saving applications.

Konan’s highly reliable and durable products have been developed with superior technologies to meet the needs and demands especially in the heavy industries such as power plants, steel mills, chemical plants, as well as many other industrial fields. Our products and services are highly used not only in Japan but over 50 countries around the world.

Pilot-acting 3-port Solenoid Valves

YS203/204 series

Pilot-acting 3-port Solenoid Valves


YS203/204 series pilot-operated diaphragm style 3-port solenoid valves show distinguished performance in high flow rate applications. 
The valves have no sliding parts, thus free from damage by contaminated fluids. 


Model code

YS203Normally closedValve opens when solenoid is energized.
YS204Normally openValve opens when solenoid is de-energized.
Port sizeRc 3/8 ・ 1/2
Orifice size15.9mm
Body materialBrass
Seal/Seat materialNitrile rubber, fluorine rubber, ethylene propylene rubber
HousingStandardConduit type
OthersExplosion-proof, NEMA 4 drip-proof, housing with terminal box, and others.
Rated voltageAC100V,110V,200V,220V(50/60Hz) AC120V,220V(60Hz)


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