PS Automation PSL 4 - Psl320-330

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7.2 PSL320-330

When mounting an actuator onto a valve, never drive the actuator electrically but use the

handwheel.

If these instructions are not observed, it may result in personal injury or damage to the

actuator and/or valve.

Figure 5: Mounting the actuator onto the valve

The valve must be suitably equipped to take the pillars. Please see the individual dimension sheets for the actuator

dimensions. Observe the following steps when mounting the actuator:

 Unscrew the locking nut (item 5) from the spindle nut (item 1) and slide it over the valve stem (item 9).

 See if the bore of the coupling piece (item 3) fits to the valve stem. If necessary, rebore and/or recut the thread.

 Slide or screw the coupling piece onto the valve stem and bore or pin to the valve stem. You may also secure the

coupling piece by using a counter nut (item 4) (Lay the disc springs according to Figure 9).

 Slide the pillars into the bore holes of the mounting bracket (item 6) and tighten with the pillar nuts (item 7).

 Extend the spindle nut by hand and move it completely over the disc springs and coupling piece, apply the

locking nut and screw it in slightly, extend the spindle nut further and compress the disc springs until the locking

nut can be tightened with the supplied face wrench to the stop, the locking nut is then flush with the lower edge

of the spindle nut and does not protrude (Figure 5.1), if necessary compress the disc springs further by hand

wheel.

 Tighten grub screw (pos. 2) with hexagon socket, locking nut is thus secured against loosening.

Before the fastening nuts are tightened, make sure that

the pedestal ends are completely inserted into the bores

of the valve mounting plate. If necessary, correct the

position of the actuator using the handwheel. If these

instructions are not observed, it may result in damage to

the actuator and/or valve.

1 = spindle nut

2 = grub screw

3 = coupling piece

4 = counter nut

5 = locking nut

6 = mounting bracket

7 = pillar nut

8 = disc springs

9 = valve stem

Figure 5.1

CORRECT WRONG