Disassembly/Assembly
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DOUBLE-SEAT VALVE INOVA (Type 580)
BA 058000.06 EN 15.11.2018
8.4 Assembly tools
Handtmann Service tool
058001.77050R1
058001.77065R1
058001.77080R1
058001.77100R1
058001.77150R1
Caution – Damage to components!
Never use greases based on mineral oil!
8.5 Valve assembly
The valve inset’s assembly takes place in the reverse order.
The following points must be adhered to:
• Quad rings should be assembled heavily greased.
• When tensioning the springs make sure that the valve rod and the guide bore-
hole in the piston are aligned.
• When assembling, the upper form seal (50) and the lower form seal (60) are
to be placed in grooves.
• To insert the upper lip sealing (90), make sure that the lip sealing can be
mounted lightly lubricated on to the valve inset until the seal lies evenly on
the upper bushing’s back-up ring. Mount the O-ring (150), lightly lubricated,
on the upper bushing.
• To install the lower lip sealing (90), make sure that the lightly lubricated lip
seal is placed in the valve housing. Mount the O-ring on the lower bushing and
screw the lower bushing on to the valve housing.
• Finally, the seal of the lip sealing should be checked.
Note:
The valve seat in the housing must be checked regularly for dirt and damages.
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