Flowserve BK 37 Manuale Utente Scaricare il pdf (Pagina 13)

MOLYKOTE

is a registered trademark of Dow Corning GmbH, Wiesbaden

All torques are based at 20 °C room temperature.

Item

Designation Torque [Nm]

B / C

Thermovit

regulator 100

Hexagon nut 60

GESTRA steam traps type BK 37... BK 28... and BK 29... do not require any special maintenance.

However, if used in new installations which have not been rinsed it may be necessary to check and

clean the trap.

Maintenance

1. Remove cover A from body F, Fig. 2, Fig. 3

2. Remove regulator

B or C using a spanner.

3. Unscrew regulator

B or C and take off strainer D.

4. Clean body, regulator, cover and strainer.

5. Clean gasket seating surfaces and insert new gasket

6. Clean sealing surfaces of regulator

B or C and body F.

7. Replace strainer

8. Screw in regulator

B or C and tighten with a torque of 100 Nm.

9. Apply heat-resistant lubricant to threads of the expansion bolts

H (use for instance MOLYKOTE

HSC+®)

10. Replace cover

A. Insert expansion bolts H and tighten hexagon nuts G at room temperature in

diagonally opposite pairs with a torque of

225 Nm.

Replacing Regulator

n Spanner A.F. 24 mm, DIN 3113, form B

n Torque spanner 20-100 Nm, ISO 6789

n Torque spanner 80-400 Nm, ISO 6789

Tools

Torques required for tightening

1 2 ... 8 9 10 11 12 13 14 15 16

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Flowserve BK 37 Manuale Utente Pagina 13