I have a question regarding the use of compressed air at reduced pressure
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There is currently a compressed air storage tank with a pressure of 0.8 MPa. A DN25 pipeline is connected to the tank, and behind this DN25 pipeline lies a gas-liquid two-phase atomizing nozzle that requires an air pressure of 0.3–0.6 MPa. The air pressure supplied to the nozzle must be adjustable within the range of 0.3–0.6 MPa, but it must not exceed 0.6 MPa. How should this DN25 pipeline be designed? Is there a pressure relief valve available to allow the outlet pressure to be adjusted? What are the methods for making such adjustments?
The adjustment methods include: adjustment via pressure relief valves, adjustment via self-acting control valves, adjustment via pressure sensor-based interlock control valves, and manual adjustment. Or reduce the gas source pressure
What is the principle behind self-acting regulation? Are there any introductions to such regulation methods as well as relevant products? Thank you