BONETTI Piston valves are suitable as Modulating Flow Control valves

Piston valves are primarily used as on/off globe valves, but they are also suitable for use as modulating control valves.

The flow path for BONETTI Piston valves provides an excellent means for control of flow rate, even when just the standard lantern bushing component is used, and which is not designed for modulating flow control.

To obtain the best performance as the modulating flow control piston valve, the valve is fitted with a special lantern bushing (see picture) that has a multiple orifice cage design, which will yield an equal percentage flow characteristic.

Upon request, linear or quick opening flow characteristics are also available.

Our flow control piston valve design provides tight shut-off when closed, and, therefore, does not require additional valves to ensure tight sealing.

Even in cases where there are high pressure differentials, our piston flow control valves do not permit vibration or noise, thanks to the fact that our piston is continuously guided by the upper ring.

This is, very much in contrast with conventional control valves with contoured plugs.

Piston valves, both standard as well as flow control type, can be automated with various types of actuators that operate by means of signals generated by process controllers.