A pressure responsive switch senses a change in pressure and responds to such changes by alternately making and eaking an electrical connection. Pressure-sensitive switches are used in a variety of appcations where it is desired to switch apparatus on or off at predetermined pressures. These switches are utized in a wide variety of appcations, as environmental appcations. Pressure switches include set-point pressure switches that actuate when a specified pressure is reached and pressure measuring switches that are capable of measuring the ambient pressure and reacting accordingly. A pressure responsive switch generally comprises a diaphragm responsive to a pressure change, a rigid ring for securing the diaphragm, and a pair of electrically conductive contacts that eak contact based on movement of the diaphragm. Mechanical pressure switches typically provide an output signal in the form of a switch closure in response to appcation of mechanical or atmospheric pressure. A differential is a device which utizes differential fluid pressure from low and high pressure sources to actuate an electric switch at a pre-set actuation point. Differential pressure switches are commonly employed to control the operation of snap action switches.
Abr Enviro Systems, created in year 2007, is trusted names in assembling, sending out, supplying and exchanging Air Pollution Controlling Equipment.