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