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Title: Fundamental Principles Pilot Of Operated Regulators
Author: Doug Butler
Source: 1987 Western Gas Measurement Short Course
Year Published: 1987
Abstract: This categorizing of all regulator (plus all construction modifications) tends to be an oversln plic8tion. but exceptions are rare. Lets examine each of them closely. Self Operated Regulators An example of a self operated regulator is a spring opened valve directly opposed by a diaphragm assembly (Figure 1). Gas. at increasing downstream pressure. acts on the diaphragm assembly to overcome the force of the spring. closing the valve. When downstream pressure falls. spring force is greater than the force of the gas acting on the diaphragm. and the valve opens

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