Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: Low Pressure Regulators
Author: m. D. Gilbert
Source: 1945 Southwestern Gas Measurement Short Course (Now called ISHM)
Year Published: 1945
Abstract: A brief study of a single regulator design will illustrate clearly the individual elements, their relationship and method of operation. Fig. 1 presents a typical regulator which incorporates in fimplest form the principal elements involved. This regulator is designed to accept the gas at the left and it maintains the desired pressure in the consuming system connected to the opening on the right. The desired or controlling pressure has access to the space below the diaphragm and its upward force is opposed by the weight mounted on the top of the diaphragm. This weight is the standard to which the outlet pressure is com- pared. The diaphragm assembly is directly con- nected to the valve assembly which in this case consists of two valves operating in two orifices. the upper section of the diaphragm case has access to the atmosphere. This is necessary in this design because a movement of the diaphragm in either direction will cause a change in the volume above the diaphragm. If entrance and exit of air were prevented by elimination of the diaphragm vent opening, a change in volume above the diaphragm and cause a change in pressure in this space, and any change in the pressure above the dia- phragm would influence the forces applied to the top of the diaphragm and thus change the standard which is the force opposing the controlling pressure under the diaphragm,

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.