Flowserve Valtek MaxFlo 3 Manual de usuario descargar pdf (Pagina 10)

User instructions - MaxFlo 3 - VLENIM0052-02 02.07

9 ACTUATOR REMOUNTING

NOTE: The MaxFlo 3 valve opens in a clockwise direc-

tion when looking down the valve shaft.

9.1 When remounting the actuator to the valve, refer to the

appropriate actuator manual.

NOTE: The actuator stroke stops must be adjusted cor-

rectly to avoid any over-rotation of the plug stroke. Poor

adjustment can cause damage to the valve. Pay special

attention to the adjustment of the closing stop when the

valve has a soft seat.

9.2 Install the valve in the pipeline as indicated in the “Instal-

lation” section according to the orientation recommen-

dations given at the end of the manual.

Figure 6a: old design

It is possible to upgrade from the old design (prior to

mid-2006) by changing the bonnet (40) and the pack-

ing stop (99).

To order the correct replacement parts, contact your

Flowserve representative with the serial numbers of

the valves requiring the upgrade.

10. PRINCIPLES OF SHAFT ANTI-BLOWOUT SYSTEM

Figure 6b: new design

NOTE: The MaxFlo 3 valve has been signiﬁcantly im-

proved, with even greater safety for the anti-blowout

system.

The diameter of the shaft shoulder exceeds the diam-

eter of the bonnet bore. Even if the thrust bearing (item

46) is not installed during reassembly, the shaft can-

not pass through the bonnet.

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Flowserve Valtek MaxFlo 3 Manual de usuario Pagina 10