Flowserve AK 45 Bedienungsanleitung PDF herunterladen (Seite 14)

Maintenance – continued –

Torques for tightening

All torques refer to a room temperature of 20 °C.

1. Observe the danger note on page 4!

2. Unscrew body screws

A and take the cover E off the body I, Fig. 2

3. Unscrew hand purging knob

4. Unscrew valve insert

5. Unscrew sealing plug

L and strainer J.

6. Clean strainer, sealing plug and gasket surfaces.

7. Clean seating surfaces of body and cover.

8. Apply heat-resistant lubricant to all threads, seating surfaces of the valve insert and of the cover

(e. g. WINIX

2150).

9. Replace gasket

H only if there are visual signs of damage.

10. Replace gasket

K if there are visual signs of damage.

11. Mount new hand purging knob

F and tighten with a torque of 40 Nm.

12. Mount new valve insert

B and tighten with a torque of 90 Nm.

13. Put cover on valve body. Tighten body screws evenly with

25 Nm.

14. Mount sealing plug

L together with strainer J and tighten with 120 Nm.

Replace hand purging knob and valve insert

Tools

■ Spanner 16 mm A.F., DIN 3113, Form B

■ Spanner 19 mm A.F., DIN 3113, Form B

■ Spanner 22 mm A.F., DIN 3113, Form B

■ Torque spanner 20-120 Nm, DIN ISO 6789

WINIX

2150 is a registered trademark of WINIX GmbH, Norderstedt

Item

Designation Torque [Nm]

Valve insert 090

Hand purging knob 040

Body screws 025

Sealing plug 120

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Flowserve AK 45 Bedienungsanleitung Seite 14