Pulsing signal to the electronic control box, ordered valve for the pressure switch, then the pressure on the main channel A, B unloading What is pressure switch, piston cavity under the action of the second end of the spring, the trip Switch contacts 1 and 2 off the price differential pressure switch, touch the bridge at the median. The system starts the second cycle to work, once the main channel between A and B pressure has reached the set value, the piston moves to the right, the trip switch contacts 3 and 4 closed / DPS Series adjustable pressure switch can be used in the oil, water Fluid and air pressure detection works filters, pumps, heat exchangers, chillers and coils, etc., and when the pressure of domestic pressure switch | Xinghua pressure switch | Li gifted Litas by Changzhou gifted Li Li Electrical and Mechanical Limited. Changzhou Li gifted Litas Electrical Co., Ltd. (www.abc.com) strong, credible, in Changzhou, Jiangsu display instrumentation industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead stand gifted Litas electromechanical and you hand into the brilliant, for a better future!