9
Disassembly
Warning
Risk of injury from combustion and chemical burns.
The media in the piping system and the valve can be hot and under pressure.
Medium residues can be in the product and escape when open or dismantled.
Allow the valve and piping to cool and depressurize them.
Wear specified protective equipment.
Note
Disassembly only by qualified specialized personnel.
Do not reach into the opening of the valve.
1. De-pressurise the piping and the operating medium line.
2. Allow the valve and pipeline to cool.
3. Empty the piping and valve completely.
– Make sure no one is located in front of the outlet opening.
– Catch discharging media in a suitable container.
4. Disconnect the operating medium line from the valve.
5. Disconnect the piping connections and remove the valve.
10
Disposal
Observe the local specifications for environmentally friendly disposal.
Dispose of the product in an environmentally friendly manner. When doing this,
also take residual media into account (potential recycling of hazardous waste).
11
Fault clearance
Malfunction
Possible cause
Remedy
Valve does not open or
opens too slowly
Valve clogged
Clean valve or replace seal cartridge
Operating medium line
clogged
Clean or replace operating medium
line
Gluing of the shut-off
element, because the
material of the shut-off
element is not suited for the
medium
Replace product with a product
variant made of appropriate
materials
Seal cartridge defective
Replace seal cartridge
Valve opens
accidentally
Medium pressure too high
Reduce medium pressure
Seal cartridge defective
Replace seal cartridge
Valve does not close or
closes too slowly
Operating pressure is still
present
Switch off the operating pressure
Seal cartridge defective
Replace seal cartridge
Leakage
Seal cartridge defective
Replace seal cartridge
Fig. 4
12
Accessories
Accessories
è
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13
Technical data
General
VZQA-C-M22C-6-GG-V2V4E-1
Design
Pinch valve, pneumatically actuated
Nominal size DN
6
Actuation type
Pneumatic
Sealing principle
Soft
Mounting position
Any
Type of mounting
In-line installation
Valve function
2/2-way, closed, monostable
Direction of flow
Reversible
Reset method
Mechanical spring
Type of pilot control
Externally actuated
Switching time on
[ms]
125
Flow rate Kv
[m
3
/h]
0.7
Switching time off
[ms]
125
Medium pressure
[bar]
0…1
Nominal pressure of process valve PN
10
Burst pressure
[bar]
16
Operating pressure
[bar]
3.5 … 6.0
Operating medium
Compressed air in accordance with
ISO8573-1:2010 [7:4:1]
Medium
Compressed air in accordance with
ISO8573-1:2010 [-:-:1], water
Max. viscosity
[mm²/s]
4000
Temperature of medium
[°C]
15 …50
Ambient temperature
[°C]
–5…+60
Storage temperature
[°C]
6…8
Product weight
è
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Process valve connection
G
¼
Operating medium port 12
M3
Housing material
High-alloy stainless steel (1.4301)
Housing cover material
High-alloy stainless steel (1.4435)
Material of seals
FPM
Material, shut-off element
EPDM
Fig. 5
Tightening torques
VZQA-C-M22C-6-GG-V2V4E-1
Housing cover, customer interface,
connection type G/T
[Nm]
10 ± 10 %
Housing cover with piping
è
Mounting instructions for seal cartridge
Housing cover with housing
Fig. 6
