Valve With Clamp-Type Anti-Rotation Fixture - Samson 3273 Mounting And Operating Instructions

Installation
5.2.2 Valve with clamp-type
anti-rotation fixture
See Fig. 6, Fig. 7, Fig. 8 and Fig. 9
Before mounting the handwheel and actua-
tor, the external clamp-type anti-rotation fix-
ture must be mounted onto the plug stem in
some cases. The valve must be closed be-
forehand.
Series 240 Valves (DN 200/NPS 8 and
larger) and Series 250 Valves (DN 125/
NPS 6)
1. Unthread the lock nut and stem connec-
tor nut on the valve from the plug stem (if
they are mounted).
2. Undo the castellated nut (92) to remove
the yoke from the valve.
Note
Depending on the valve (model, valve size
etc.), the yoke (belonging to the valve) is
used instead of the yoke (G4) of the hand-
wheel.
Legend for Fig. 6
A7 Actuator stem
A8 Ring nut
A26/ G26/
27/ 27/ Stem connector clamp
29 29
G1 Yoke (belonging to the actuator)
Stem connector nut (belonging to the
G2
actuator)
G4 Yoke (belonging to the valve)
22
3. Insert ball bearings (310) into the recess-
es in the bonnet.
4. Place the yoke (G4) on the bonnet in
such a way that the ball bearings fit into
the recesses of the yoke.
5. Fasten the yoke (G4) using the castellat-
ed nut (92).
6. Position the travel indicator scale (84) on
the hanger (83) with the screws (85) ac-
cording to Table 3.
7. Use a soft-faced hammer or lever press
to press the sliding washers (309) with
their beveled part first (without using any
lubricant) into the recesses of the clamps
(301) as far as they will go. Remove any
excess material.
8. Apply a thin film of lubricant (114) to the
threads of the stem connector rod (G5)
and screws (303).
Stem connector rod (belonging to the
G5
valve)
G6 Handwheel
G9 Fastening nut (belonging to the valve)
G16 Threaded rod
G42 Lock nut (belonging to the actuator)
G51 Lock nut (belonging to the valve)
G60 Top bonnet
G64 Worm shaft
EB 8312-2 EN