Samson 3251, Монтаж и эксплуатация

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EB 8052 EN 43
Servicing
8
11
12
16
19
12
16
19
12
12
12
8
11
12
16
19
12
16
19
12
12
8 Threaded bushing
11 Spring
12 Washer
16 Packing ring
19 Spacer
Fig. 6: Standard packing: NPS ½ to 1½ (left) and NPS 2 to 4 (right)
7.2.2 Version with insulating
section
Standard packing (PTFE)
1. Remove the actuator from the valve. See
associated actuator documentation.
2. Unscrew the castellated nut (92) and lift
the yoke (3) off the insulating section
(21).
3. Undo the body nuts (14) gradually in a
crisscross pattern.
4. Lift the insulating section (21) and plug
with plug stem (5) off the body (1).
5. Unthread the stem connector nut (9) and
lock nut (10) from the plug stem.
6. Unscrew the threaded bushing (8).
7. Pull the plug with plug stem (5) out of the
insulating section (21).
8. Pull all the packing parts out of the pack-
ing chamber using a suitable tool.
9. Renew the damaged parts and carefully
clean the packing chamber.
10. Apply a suitable lubricant to all the pack-
ing parts and to the plug stem (5).
11. Slide the plug with plug stem (5) into the
insulating section (21).
12. Place the insulating section (21) together
with the plug stem and plug (5) onto the
body.