Which is better for regulation: a single-seat diaphragm pressure regulator with pressure interlock, or a self-acting pressure regulator?
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Which is better for regulation: a single-seat diaphragm pressure regulator with pressure interlock, or a self-acting pressure regulator? Used for pressure regulation in low-pressure steam pipelines
For applications requiring high adjustment precision, automatic regulation using a single-seat diaphragm pressure regulator is employed; for those with lower requirements, a self-acting pressure regulator can be used, which is also cost-effective.
The self-acting control valve installed on its steam pipeline requires a high-temperature resistant diaphragm, which is costly; therefore, it is better to use a control circuit consisting of a pressure transmitter and a control valve for regulation.
It depends on the process application and flow: if it is about controlling the total inlet pressure of a device or unit, a control valve should be used to ensure a stable and accurate steam pressure for the downstream devices and units； Selection of pressure interlock control for key processes ； For the control of gas pressure in devices, individual unit equipment, or systems, self-acting control valves are used.