The CLA-VAL Model 134E/D-41 Solenoid Control Valve is an on-off control valve which either opens or closes upon receiving an electrical signal to the solenoid pilot control and a local reset action. This valve consists of a 100G/2100G U.L. listed HYTROL main valve, a three-way solenoid valve, an auxiliary pilot valve and a manual reset pilot. This control system alternately applies pressure to/or relieves pressure from the diaphragm chamber of the main valve.