Pressure indicator

摘要

A pressure indicator: a body having a pressure chamber which has an inlet for communication with a fluid; a resilient diaphragm having a periphery sealed against the body and having one side thereof exposed to the fluid within the chamber; an indicating arm having an inner end which is integrally formed with the other side of the diaphragm and an outer end arm which is adjacent to a scale, the arrangement being such that pressure of the fluid within the chamber causes resilient deformation of the diaphragm which in turn causes the outer end of the arm to move relative to the scale thereby indicating the pressure of the fluid in the chamber.

主权项

1. A pressure indicator, comprising:
a body having a pressure chamber which has an inlet for communication with a fluid: a resilient diaphragm having a periphery sealed against the body and having a first side thereof exposed to the fluid within the chamber; an indicating arm having an inner end which is integrally formed with a second side of the diaphragm and an outer end which is adjacent to a scale; and a fulcrum integrally formed with the diaphragm, which serves to cause rotation of the indicating arm on resilient deformation of the diaphragm, wherein the pressure indicator is arranged such that pressure of the fluid within the chamber causes resilient deformation of the diaphragm which in turn causes the outer end of the indicating arm to move relative to the scale thereby indicating the pressure of the fluid in the chamber.