Samson V2001 Series, Mounting And Operating Instructions

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EB 8135/8136 EN 19
Maintenance
5.2.2 Diverting valve
Disassembly
1. In valves ≤DN 50, unscrew the lock nut
(6.2) and stem connector nut (6.1) from
the plug stem.
2. Unscrew the coupling nut (5.1) from the
bellows housing. Remove nuts (1.1) and
lift off the flange (5.4).
3. Pull out the bellows housing (5.2) and
bellows seal as far as they will go. Place
an open-end wrench SW 10 (≤DN 50)
or SW 13 (≥DN 65) at the side on the
hexagon (X) or at the flattened area of
the plug stem to hold the stem stationary.
Loosen the nut (12) and remove the
wrench.
4. Unscrew the nut (12). Remove the two re-
taining washers (12.2) and washer
(12.1).
5. Pull the bellows seal (5) out of the bel-
lows housing and remove the body gas-
ket (1.2).
6. Carefully clean all the parts and check
them for damage. Renew defective parts.
7. DN 15 to 25
Unscrew the top seat (2.1). Remove the
plug (3) from the valve body. Take out
the bottom seat (2.2).
DN 32 to 50
Remove the top plug (3.1) and the three
sleeves (10.1, 10.2, 10.3) from the valve
body.
DN 65/80
Remove the top plug (3.1) and the four
sleeves (11.1, 11.2, 11.3, 11.4) from
the valve body.
8. DN 32 to 80
Unscrew the top and bottom seat (2.1,
2.2) using a suitable seat wrench (see
section 5.3) from the valve body.
Remove the bottom plug (3.2) from the
valve body.
9. Carefully clean all the parts and check
them. If necessary, renew or machine
them.
AB A
B
12.2
12
12.1
1.1
6.1
6.2
5.3
5
5.2
X
5.4
1.2
4.2
4.3
5.1
3.2
Fig. 12: Valve bonnet with bellows seal