Explain the working principle of thermostatic expansion valve with the help of neat diagram.

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Explain the working principle of thermostatic expansion valve with the help of neat diagram.

written 6.8 years ago by

shaikhrehan227 • 410

modified 5.7 years ago by

abhishektiwari1 • 100

Subject:- Refrigeration and Air Conditioning

Topic:- Vapor Compression Refrigeration System

Difficulty:- Medium

refrigeration and air conditioning

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written 5.7 years ago by

shaikhrehan227 • 410

The thermostatic expansion valve consists of a needle valve, a seat, a metallic diaphragm, a spring, adjusting screw and a feeler bulb.
The opening or closing of valve depends upon following forces acting on the diaphragm:

i. Spring pressure acting on bottom of diaphragm

ii. Evaporator pressure acting on bottom …

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