| 摘要 |
A pressure gauge including a hollow cylinder, a first housing member having a first pressure inlet disposed at a first end of the cylinder, and a second housing member having a second pressure inlet disposed at a second end of the cylinder. The pressure gauge also includes a piston slidably disposed in the first housing member. The piston includes a remote indicator coupled to an end of the piston. At least a portion of the remote indicator extends into the hollow cylinder. A spring is disposed in the cylinder abutting the remote indicator and urges the remote indicator toward the second housing member. An increased pressure difference between the first pressure inlet and the second pressure inlet causes the remote indicator to move away from the second housing member and toward the first housing member, and the remote indicator provides a measure of the pressure difference relative to indicia included on the pressure gauge. |
