Vacuum system

Solenoid valves are widely used in vacuum applications. Direct and semi-direct valve types are the most common. They do not require a minimum level of stress, which makes them best suited for these situations. Vacuum solenoid valves are usually designed to be leak-free, which is a necessary requirement under such conditions.

Vacuum applications include the electronics industry, vacuum manufacturing and automation systems, and vacuum pumps that require partial removal of air.

Home heating equipment

Heaters use gas or wood to heat water and distribute it to various fixtures, such as bathroom shower heads, kitchen faucets, and other fixtures. The heart of the heater's operation is the solenoid valve.

These open and close automatically to let in cold and hot water. The flow rate in the circuit is usually high, which makes a pilot-operated solenoid valve most suitable.

Refrigeration equipment and systems

An important use of solenoid valves is in refrigeration systems. Refrigeration solenoid valves serve multiple functions in these installations. It prevents the high-pressure compressor from starting and protects the compressor from liquid hammer problems. The valve also closes and opens the refrigerant passage as needed, helping to prevent refrigerant from entering the evaporator when the compressor is stopped.

Car washer

Car wash equipment delivers high-pressure water and detergent to clean motor vehicles. To mix and lift water and cleaning solutions, these devices use a series of automatic solenoid valves.

These valves are usually direct-acting. To protect valves from corrosive chemicals in cleaning solutions, manufacturers use nickel-plated brass. ​

Air compressor unit

An air compressor takes in air, compresses it, and sends it to a compressed air storage tank. When air enters the tank, it must maintain pressure. This is achieved through the use of solenoid valves.

The compressed air solenoid valve is energized to shut off the flow of fluid, in this case air, and allow the built-up pressure to remain in the tank.

Compressed air pressure should not be left inside the tank for long periods of time. When the coil is de-energized, the valve opens and releases air into the system.

Hot drink machine

These are machines that dispense coffee, tea, and other beverages. They are commonly found in offices and commercial establishments, although some can be used in private locations. Hot beverage machines typically use direct-acting solenoid valve systems.Valves open and close in sequence to allow fluid to flow through the system.

Water mixing in safety faucet

Where hygiene requirements are strict, solenoid valves are used to automatically mix hot and cold water before flowing out of the faucet or faucet. Typically, these devices are equipped with a sensor to detect the presence of a person. It can be an infrared sensor or any other device.Behind the installation are two water solenoid valves. They open simultaneously to let in hot and cold water. Due to the high flow rates involved, the type used is usually a pilot operated solenoid valve.

Floor scrubber

The scrubber must dispense the right amount of water and detergent at the same time. To ensure this, solenoid valves are used for each function.Since the fluid being controlled has no pressure, most of the valves used are direct-acting.

Water metering device

These are mechanical devices that regulate the amount of water dispensed. They are used in different places, such as the food industry, to measure the precise amount of water in a mixture. The solenoid valves used in these instruments are usually pilot operated.

These are easily adapted to the high flow rates common in installations. These water solenoid valves have an auxiliary lift function when system pressure is low.

Natural Gas Fixtures and Appliances

Solenoid valves are used in industrial and domestic gas systems to open or stop the flow of natural gas. Gas solenoid valves can also be found in devices that use pneumatic actuators to perform different functions. Natural gas solenoid valves control the flow of air in a home gas heating system, indicating when the gas must come on to heat water and when it must turn off.

In conclusion

Solenoid valves are a common device on the job today. They are found almost everywhere, from automated manufacturing systems, automobiles, refrigeration and air conditioning systems to farm pumps and irrigation systems.

In contrast to pneumatic valves or some types of hydraulic valves, they can be found in most household appliances and fixtures.In industrial and engineering systems, solenoid valves have the most applications.

The list of applications is by no means exhaustive, the examples explained here are the most common.