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Name different parts of a pressure gauge. Explain the use of hair spring in the pressure gauge.?

Instrumentation
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Question added by ELDHO GEORGE , MECHANICAL ENGINEER , ARKAD ENGINEERING AND CONSTRUCTION CO. KSA
Date Posted: 2018/08/20
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Faseem Abdulla Kattil Veedu
by Faseem Abdulla Kattil Veedu , Lead Instrumentation Engineer/Procurement Engineer , Sinopec Branch Of International Petroleum Coorporation

Pressure gauge includes following components:

a. ‘C’ type bourdon tube.

b. Connecting link

c. Sector gear

d. Pinion Gear

e. Hair spring f. Pointer

g. Dial

Use of hair spring: Hair spring is responsible for controlling torque. It is also used to eliminate any play into linkages.

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