... and break for 10s respectively, lasting 1h, the check valve should be unblocked.Flow characteristicsPressure 0.02Mpa Flux >3L/ ... for 12h, but not connect through the water, the valve should be no deformation, and the coil should not ... 1s, no flashover or breakdown;Non-return functionYesFiltering functionBuilt-out filter screenAdjustment functionNoAngle between coil and valve body360, 270, 180, 90Power ...