Pulse signals again so that the system pressure valve for the apc table, begin the next cycle to work. Differential pressure switch used in HVAC systems is mainly controlled according to the resistance and flow curves HVAC equipment magnehelic pressure table, HVAC water-side heat exchanger (tube type, shell and tube, plate and tube plate commonly used heat exchanger), water filters, valves and pumps have their pressure drop and flow performance curves, as long as the measurement of differential pressure switch sides with a preset value, you can accurately control the traffic. Gas pressure switch can be used to perceive Africa corrosive gas pipeline pressure difference, vacuum, overpressure and poor flow parameters. Conventional applications include: · · fan running condition monitoring alarm monitoring filter blockage · ventilation duct static pressure difference table | Youbisheng Electromechanical | Shenzhen pressure table provided by Changzhou gifted Litas Electrical Co., Ltd. established. Changzhou Li gifted Litas Electrical Co., Ltd. (www.abc.com) is Changzhou, Jiangsu, indicator leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Li gifted Litas electromechanical leadership with the staff warmly welcome all inquiries negotiations, founded gifted Litas electromechanical a better future.