Flow Control Valve:

A flow control valve regulates the flow or pressure of a fluid. Control valves normally respond to signals generated by independent devices such as flow meters or temperature gauges.

Control valves are normally fitted with actuators and positioners. Pneumatically-actuated globe valves and Diaphragm Valves are widely used for control purposes in many industries, although quarter-turn types such as (modified) ball, gate and butterfly valves are also used.


D
D
A
Opening
Inches
MM
MM
"C"MM
1 1/2
38.1
90.0
6.0
2
50.8
108.0
8.0
2 1/2
63.5
128.0
10.0
3
76.2
135.0
12.0