Proportion-Air electronic pilots can be used in gate valve pressure control applications to remotely actuate the gate valve open and closed. Most often, this is used in a curing (drying) process of some sort. Gate valve pressure control for steam is widely used – however, we recommend our steam regulators for this kind of application.
In this drawing, a QB2 with a PSR series regulator is controlling the pressure on the dome of several gate valves in a wood curing process. Variable pressure on the dome of the regulators controls the air pressure going to furnaces. Also in the application, the QB2 assembly is placed inside an enclosure – this can be to protect against heat or to meet hazardous location requirements.
We have electronic pilots suitable for every size of (pneumatically operated) gate valve available. We just need to know the max flow required to fully open or close the valve in the time you require.