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Title: Operation And Maintenance Of Rubber Plug Type Regulators
Author: R. H. Welker
Source: 1965 Southwestern Gas Measurement Short Course (Now called ISHM)
Year Published: 1965
Abstract: With our long history of working with rubber it is not surprising to see it offered once again in a gas regulator, in the form of a solid rubber plug. A rubber plug that is the very heart of the regulator and, indeed, all major components in the regulator that actuate the plug are meant as compliments to it rather than irreplaceable features in themselves. Think for a minute of the important features that gas men desire in regulators. They must perform better than ever, even though pressures are going up in the name of efficiency and the controlled variable is being drawn within limits that heretofore were well nigh impossible to obtain. Gas men want the ability to handle high pressure drops, yet at the same time they want the regulator that is handling these drops to be able to work perfectly when the pressure drop begins to equalize across it. As every gas man knows, there are always times when pipeline pressures fade far below the normal lows, and it is during these rare periods when we want the regulators to go wide open if necessary to insure continuity of service to the customer. Our modern reguulators need a positive shutoff, the ability to handle low flows, a friction free operation, quietness, compactness, resistance to cutting, speed of operation, easy maintenance and low maintenance costs.

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