The object of this paper is to discuss the analysis, design and testing of valves for controlling and regulating the flow and pressure in high temperature gas systems.
The flow control valves have been operated in both ON-OFF and proportional control modes, controlling the products of combustion of solid propellant at 2000°F.
The areas to be discussed in detail will be:
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1.
Initial static and dynamic analysis.
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2.
Design and material problems.
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3.
Valve actuation methods.
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4.
Resulting test data.
Two types of pressure regulating valves will be considered those that maintain a constant gas pressure for varying gas flow by monitoring the gas pressure at the valve and those that sense pressure from a remote part of the system. An example of the latter type is a valve that is used to maintain constant pressure in a freon expulsion system that uses a solid propellant pressurizing source.
The conclusions from this work are that it is feasible and practical to control high temperature gas accurately and reliably, as substantiated by extensive test data.