1

Ring with dial for presetting

2

Variable presetting opening

3

Differential pressure controller

4

Flow control valve

5

On/Off control valve

6

Pressure test point, blue ribbon, P-

7

Pressure test point, red ribbon, P+

A

Inlet port A

B

Outlet port B

 

PICV VQ..46..Q (shown here) is additionally equipped with pressure test points P/T.