If you're looking for the best products for your industrial vacuum system, SMC has just the solution. From our vacuum filters to our vacuum regulators and vacuum gripper systems, we're always aiming to increase efficiency, save energy and ensure high performance. To ensure a vehicle’s engine performance, all components need to function smoothly, from small ones, such as the heater control valve and engine management light, to the main parts of a car, like the hot coolant or the battery. Differential pressure switches are typically used for preventative maintenance. Typical applications could include energy-saving, purifying, and monitoring air filters and ventilation flow. Hydraulic Pressure Switches

A coolant/antifreeze leak can occur due to a number of factors, including a blown radiator hose, a faulty hose on the intake, a warped head gasket, or, most commonly, EGR valve failure. Prior to effective engine control unit computers, engine vacuum was used for many functions in an automobile. Vacuum switches were employed to regulate this flow. For instance a dual port vacuum switch located in a port on the intake manifold monitored the coolant temperature in the coolant crossover. It received vacuum (port E on the switch) from the carburetor. The vacuum flowed through the switch to a vacuum solenoid (such as a heat riser, used to restrict exhaust allowing the engine to heat up faster). When the coolant heated to operating temperature the vacuum switch closed off the port (port S on the vacuum switch) turning off the vacuum to the heat riser. The result is to clear the exhaust restriction. The switch monitored the temperature and when conditions were right it performed its designed function. Find sources: "Vacuum switch"– news · newspapers · books · scholar · JSTOR ( December 2009) ( Learn how and when to remove this template message)

Among them, although a vacuum switching valve is a minor part, it plays an important role in securing a workable automobile.

Secure the new switch in place within the install environment. The specific method for this will depend on where it is being installed In the long run, the worst-case scenario is that driving with a vacuum leak and elevated temperatures caused by operating a lean air-fuel ratio might lead to broken engines. If you are replacing an existing pressure switch, this will need to be carefully removed before the new device can be fitted Differential pressure switches are used to detect the difference in pressure between two set points. If pressure drops or exceeds the pre-defined value, an alert will be triggered to make or break the circuit.While there can be double and single poles in vacuum switches, there can also be either single or double throws. A throw refers to how many positions a switch can activate.