16
Assembly and disassembly
ED. 2009/11
Proceed with caution. There is danger of personal injury.
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.
7.2.
DISASSEMBLY / ASSEMBLY OF THE SINGLE-SEAT VALVE (NL/NT TYPE)
Disassembly
1.
Operate the handle (04) in order to set
the plug shaft (08) in the open
position.
2.
Disassemble the clamp (34) and
remove the handle (04) shaft (08)
body cap (12) assembly from the body
(01)
3.
Disassemble the plug shaft (08) from
the handle by loosening the upper nut
(26B) and the hexagonal nut (26).
4.
Remove the seal (20).
5.
Disassemble the body cap (12) and its
gaskets (20B and 05).
6.
Remove the guide bushing (11) from
the handle support (21).
7.
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.
Connect the plug shaft (08) using the
blind nut (26B) and the nut (26).
6.
Operate the handle (04) in order to set
the plug shaft (08) in the open
position.
7.
Assemble the handle (04) shaft (08)
body cap (12) assembly on the valve
body (01) (360
o
rotatable according to
users' needs), and tighten it using the
clamp (34).
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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