Replacing Diaphragm And O-Ring; Dismantling - GF 582 High Purity Manuel D'utilisation

Maintenance
 Set maintenance intervals as per the conditions of use (e.g. actuating cycles,
medium, ambient temperature).
 As part of the regular system inspection, carry out the following maintenance
activities.
Maintenance interval
regular
regular
regular
11.1

Replacing diaphragm and O-ring

 Remove the valve from the pipeline and bring it into horizontal position.
11.1.1

Dismantling

 Prior to dismantling: Mark the position of bonnet assembly (top part) to base part
on the housing.
 Remove the cap from the bonnet assembly (top part), see Fig. 2.
To do so, use a screw driver.
 Relax the spring. To do so, turn the spindle counterclockwise (P-),
up to the end position.
 Fix the base part with a suited tool and loosen the bonnet assembly (top part).
To do so, turn the bonnet assembly (top part) counterclockwise, see Fig. 7.
During this, the seal sticker will be broken.
Fig. 7
Maintenance activity
 Check sealing element, piston, diaphragm
on functionality and replace, if necessary
 Check tightness of housing, pipe
connection and control line.
 Cleaning the inner body
Instruction manual
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