18
Assembly and disassembly
ED. 2009/11
Proceed with caution. There is danger of personal injury.
Always disconnect the compressed air before starting valve disassembly.
Never disassemble the valve clamps directly without reading the instructions thoroughly.
Assembly and disassembly of the valves / actuator must only be carried out by qualified staff.
7.4.
DISASSEMBLY / ASSEMBLY OF THE SINGLE-SEAT VALVE (NLFM TYPE)
Disassembly
1.
Operate the handle (04) in order to set
the plug shaft (08) in the open
position.
2.
Disassemble the plug shaft (08) from
the handle by loosening the upper nut
(26B) and the hexagonal nut (26).
3.
Remove the seal (20).
4.
Disassemble the clamp (34) and
remove the handle (04) body cap (12)
assembly from the body (01).
5.
Disassemble the body cap (12) and its
gaskets (20B and 05).
6.
Disassembly the second clamp (34)
and remove the flange (02).
7.
Disassemble the separator (42) and its
gaskets (20B).
8.
Remove the guide bushing (11) from
the handle support (21).
9.
Unscrew the handle (04) and the lock
nut (26A) from the support (21).
Assembly
1.
Place the lock nut (26A) and the
handle (04) on the support (21).
2.
Place the guide bushing (11) on the
support (21).
3.
Fit the gaskets (20B and 05) on the
body cap (12) and place this assembly
on the support (21).
4.
Lubricate the gaskets with soapy
water if necessary.
5.
Put the valve body (01) (360
o
rotatable according to users' needs),
and tighten it using the clamp (34).
6.
Fit the separator (42) with the gaskets
(20B) on the flange (02).
7.
Fit the flange (42) on the valve body
(01), and tighten it using the clamp
(34).
8.
Fit the seal (20) on the shaft (08).
9.
Connect the plug shaft (08) using the
blind nut (26B) and the nut (26).
10.
Operate the handle (04) in order to set
the plug shaft (08) in the open
position.
The following tools are required to disassemble the valve:
•
5mm (DN-25/40), 6mm (DN-50/80), and 10mm (ND-100) Allen keys.
•
Two 19mm fixed wrenches
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