Pulse signals again so that the system pressure valve for the micro-switch effect, begin the next cycle to work. Pressure switch in the HVAC system application is mainly based on the resistance and flow curve control HVAC equipment What is the differential pressure switch, HVAC water-side heat exchanger (tube type, shell and tube, plate and pipe commonly used Plate heat exchanger), water filters, valves and pumps have their pressure drop and flow performance curve, simply measuring differential pressure switch sides with a pre-set value, you can accurately control the traffic. Transmitters (1) temperature transmitter (14) air conditioner remote control (0) flow switch (15) level switch (7) pressure switch (17) pressure and vacuum switches (9) timer switch (1) Vibration switch (0 pressure switch specifications | Youbisheng Electromechanical |. xiangshui pressure switch from Changzhou Li gifted Litas Electrical Co., Ltd. Changzhou legislation provides excellent Litas Electrical Co., Ltd. (www.abc.com) is Changzhou, Jiangsu, display instruments leader, over the years, the company implement scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In stand gifted Litas electromechanical leadership with the staff warmly welcome all inquiries negotiations, founded gifted Litas electromechanical a better future.