KSB BOA-Control PIC, Руководство по эксплуатации

Страница: 18 / 36

4 Valve Description
18 of 36
BOA-Control PIC
7138.8/01-EN
Part No. Description Material Note
563 Pin CW617N -
580.1/.2
6)
Cap CW617N Red (580.1), blue (580.2)
700 Piping (capillary tube) Copper -
722 Top flange G-AlSi4.5MnMg -
732 Holder (actuator) AISI304 -
734 Screwed union CW617N -
901 Hexagon head bolt Stainless steel A2 -
950.1/.3 Spring AISI302 -
950.2 Spring Steel 2FD -
4.8 Function
Design The valves basically consist of body 100, body bonnet 161 and the functional unit.
Nominal sizes DN 10 - 25 have male threaded ends and nominal sizes DN 32 - 50 have
female threaded ends to ISO 288. From DN 65, the valves have flanged line
connections.
Function The valves maintain a constant volume flow rate as defined by the presetting,
irrespective of fluctuating pressures in the system. This function is achieved by means
of an integral fluid-controlled actuator which moves the functional unit. The valve is
provided with a shut-off function.
The flow rate can be measured at the two pressure measurement connection
branches 131.1/.2 in conjunction with a differential pressure gauge.
4.9 Scope of supply
The following items are included in the scope of supply:
▪ Valve
Valves from DN 65 require an actuator or manual gearbox to be fully functional.
4.10 Dimensions and weights
For dimensions and weights please refer to the type series booklet.