Grundfos Vaccuperm VGA-117, Инструкция по установке и эксплуатации

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5. Replace damaged parts.
6. Dry all parts well.
Moist parts can cause corrosion.
Mount all parts in reverse sequence.
8.3 Cleaning the rate valve
A
B
C
D
E
F
G
TM040802
Required tools and accessories:
•
Hot water
• Soft brush
• Cylindrical pin, approx. 6 mm
• PTFE grease from the service kit
Do not use Vaseline for lubrication of the O-ring.
For versions with servomotor, observe the manual of the
servomotor.
1. Version with servomotor: Unscrew the servomotor.
2. Unscrew the adjusting knob (C).
3. Unscrew the rate valve cartridge (F).
4. Remove the O-rings (G) of the rate valve cartridge.
Do not damage the sealing edge of the valve seat.
5. Push out the seat with the cylindrical pin.
6. Take off the cap (A) of the adjusting knob.
7. Remove the locking ring and take out the spindle (D).
8. Remove the O-rings (E) of the spindle.
9. Clean all parts with hot water, use a brush if necessary.
10. Replace damaged parts.
11. Dry all parts well.
Moist parts can cause corrosion.
12. Replace the O-rings of the spindle by new ones, slightly apply
PTFE grease to them.
Do not apply any grease to the groove of the spindle.
13. Replace the O-ring of the rate valve cartridge.
Mount all parts in reverse sequence.
9. Decommissioning
Seal the inlet and outlet connections of the dismantled
system components to avoid ingress of moisture.
For details on decommissioning, see the separate installation and
operating instructions of the Vaccuperm gas dosing system.
10. Technical data
WARNING
Toxic material
Death or serious personal injury
‐
Observe the values stated in the technical data sec-
tion.
10.1 General technical data
Accuracy ± 4 % of upper limit
Permissible medium Cl
2
Setting range 1:20
Permissible vacuum
regulator
• VGA-111 up to 4 kg/h
• VGA-113 up to 4 kg/h
• VGA-146 up to 4 kg/h
• VGA-146 up to 10 kg/h
• VGS-147 up to 20 kg/h
Flowmeter
According to the floater principle, with a
ball in a measuring glass.
Length of measuring glass: 190 mm
(4-10 kg/h version) or 300 mm (20 kg/h
version)
Weight
Without servomotor: 1.9 kg
With servomotor: 4.1 kg
Vacuum connection
• 4-10 kg/h version: PE hose, 10/14, or
PVC pipe, DN 15 (option)
• 20 kg/h version: PVC pipe, DN 20
14
English (GB)