Two way solenoid valves SV series two ways normal closed solenoid valves with pistons can be widely used in refrigeration,Website:://.fs-controls.com, pneumatic and hydraulic system,also in boiler and fire-fighting, etc.Solenoid valves use full-closed magneticcoil and DIN international standard electric plug,so it is characterized by its good insulation, waterproof, moisture proof,anti-vibration and corrosion resistance.Types