What are pneumatic valves used for
Pneumatic valves are mechanisms that are used to modulate or control the flow of air or gas within a pneumatic system. They control the gas at its source, regulating its passage through pipes and hoses as required. The valve can be opened or closed in several ways, either electrically using a solenoid or motorised actuator, manually, mechanically or pneumatically. Typically, pneumatic valves are two, three and four-way. Parameters for their classification include:
- the operating pressure, also referred to as the pressure range
- the operating medium, i.e. the variety of fluid that the valve can control
- the flow capacity, also called flow coefficient
- the response time
- the cycle speed, i.e. the maximum number of cycles that can be performed in a given time frame
- the nominal coil voltage
- the port size: the physical dimensional parameters specify the size of the port on the equipment and the style of thread.
How to buy them
A wide range of pneumatic valves is available on the Sistem Pnuematica website, to meet all needs and requirements. The company, in fact, has distinguished itself in the industrial panorama for the production of fundamental elements for pneumatic systems, becoming a real point of reference in the sector. Sistem Pneumatica provides its customers with all kinds of valves, in particular:
- servovalves or pneumatic block valves: thanks to pneumatic piloting, they allow or block the passage of compressed air in the circuit. They are available in both bidirectional and unidirectional versions
- check valves: allow compressed air to flow in one direction, indicated on the valve body by an arrow, and prevent it from flowing in the opposite direction.
- safety valves: they are activated by releasing the upstream air into the atmosphere if the pressure in the pneumatic circuit exceeds a certain value, or by manual operation.