Flowserve 025000 Series Manual de usuario descargar pdf (Pagina 9)

Flow Control Division

Kammer Control Valves

11.00

Hex bolt Waisted bolt Studs

Thread DIN 933 DIN 2510 DIN 939

A2-70 1.7709 1.7258 CK 35

M 8 20 Nm – – –

M 10 35 Nm – – 20 Nm

M 12 60 Nm 44 Nm 36 Nm 35 Nm

M 16 145 Nm 115 Nm 92 Nm 80 Nm

M 20 280 Nm – – –

M 24 250 Nm – – 270 Nm

4.2.11 Using torque wrench, gradually tighten all bolts alter-

nating crosswise to following torques (see following

table).

Note: When the housing bolts are tightened, the halves

of the housing must always be parallel (see fig. 5).

4.2.12 Replace packing by inserting packing rings one at a

time tapping each one down with a suitable bushing.

IMPORTANT: ensure that the gaps in the packing

rings are distibuted evenly around the circumferance

in the packing box (gaps not in line).

Note:

different packings and fitting sequence is shown

in the spare parts list.

6.1.13 Insert packing follower. Fit gland nut for transport

purposes only. Gland nut to be fitted correctly and

tightened down when actuator is mounted.

4.2.14 When performing subsequent pressure test, note the

max. permissible pressure for the bellows. After the

check for leaks, close off test connection with plug or

suitable gauge.

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Flowserve 025000 Series Manual de usuario Pagina 9