lindab | we simplify construction 2-way control valves LinFlow-A LinFlow-A with adapter and actuator Valve LinFlow-A Adapter VA 64 Actuator APR-40405 Presetting of valves Picture 4: Remove the handwheel (8), do the presetting of the valve, the adapter VA 64 and actuator can easily be attached. Technical data Materials: 1. Body 2. Headwork 3. Stem 4. Spring 5. O-Ring 6. Gland 7. Presetting screw 8. Handwheel 9. Presetting knob 10. Presetting ring 11. Shutter 12. Half Cartridge body 13. Clip 14. O-Rings CW617N (EN 12165) CuZn40Pb2 CW614N (EN 12164) CuZn39Pb3 AISI303 AISI302 EPDM-X CW614N (EN 12164) CuZn39Pb3 CW614N (EN 12164) CuZn39Pb3 ABS nylon GF nylon GF CW614N (EN 12164) CuZn39Pb3 CW614N (EN 12164)CuZn39Pb3 Acetal copolymer EPDM-X 6 7 5 4 3 2 8 9 10 11 12 13 1 14 Picture 5: Section view of LinFlow-A showing internal parts. 10 9 8 Picture 6: Remove the handwheel (8). Rotate the white presetting knob (9) till the desired position. Rotate counter clockwise (CCW) to increase and clockwise (CW) to decrease. CCW CW Picture 7: Example: changing the position from 5 to 8, (Increasing). Turn the presetting knob (CCW) until the blue presetting ring indicator reads 8. Stroke F.C.-Stern stroke -0 [mm] => valve fully closed F.O.-Stern stroke -3 [mm] => valve fully open Picture 8: Stern stroke 0 - 3 [mm] Pressure drop diagrams / Presetting position ( ) ∆ p = q w 2 w K V √ q w = K V x ∆ p w Where: q w : is the water flow rate [m 3 /h] K V : is the flow rate factor [m 3 /h] ∆ p w : is the pressure drop across the valve [bar] Find presetting position for the desired K V value in the cor- responding diagram 1 on the following pages. Lindab reserves the right to make changes without prior notice 3 2021-02-12
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