Burkert Type 2712 - Manual (Page 8)

8
Assembly
+ 1.5 mm valve opening
Valve opening in mm
Valve opening in 1/10 mm
Valve opening in
1/100 mm
Fig. 3: Position indicator handwheel
6.4.1. setting the position indicator
The display has been set at the factory so that the value 0,000 is
shown when the valve is tightly closed.
Any valve position can be defined as the zero position:
→
Move valve to the required position by turning the handwheel.
→
Loosen the 3 setscrews on the circumference of the locking ring.
→
Set display by simultaneously holding the handwheel and turning
the locking ring to the value 0,000.
→
Clamp locking ring with the 3 setscrews.
7. assembly
Danger!
risk of injury from high pressure in the system.
• Before loosening lines or valves, turn off the pressure and vent
the lines.
7.1. preparatory work
→
Observe flow direction (see type label).
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Clean pipelines (sealing material, swarf, etc.).
devices with welded body:
Remove the actuator from the valve body:
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Open valve by approx. 2 revolutions (to relieve the valve seat seal)
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Place a suitable open-end wrench on the wrench flat of the nipple.
→
Unscrew the actuator off the valve body.
devices with socket body:
→
Only disassemble the actuator if required by the customer.
english
Types 2000, 2012, 2702, 2712