Pressure reducing valve

Question 1

Purpose of pressure reducing valve?

Answer 1

• take a continuously changing higher pressure gas –> reduces to lower constant working pressure (no fluctuation)
• reduces to 45 - 55 psi

Question 2

What is a regulator

Answer 2

2 components

• PRV to reduce pressure
• flowmeter to control flowrate

Question 3

What are 2 classification of PRV?

Answer 3

1. single stage /multi-stage
   - -> number of steps required to reduce pressure to desired level
2. preset / adjustable PRV
   - ->Preset: designed to deliver a fixed outlet pressure
   - ->adjustable: deliver a range of outlet pressure