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8.2. Maintenance
8.2.1. Check valve
To be carried out by an installation company
1. Close shutoff valve on inlet
2. Close shutoff valve on outlet
3. Release pressure on outlet side (e.g. through water tap)
4. Replace check valve
5. Slowly open shut off valves on inlet and outlet
10. Troubleshooting
Disturbance
No or too small water flow rate
Rise in pressure in the prepressure sectionNot sealing properly in the prepressure
Beating sounds
11. Spare Parts
No. Description
1
Check valve cartridge
2
Blanking plug
with O-ring R1/4" (5 pcs.)
3
Seal ring
(10pcs.)
Honeywell GmbH
Cause
Stop valve in front of or below the check
valve is not fully opened
Valve cone jams in the guide
section
Sealing surfaces soiled or worn
The check valve is over-dimensioned
Dimension Part No.
/
"
2166200
1
2
/
"
2110200
3
4
1"
2164400
S06K-1/4
/
"
0901444
3
4
1"
0901445
GB
9. Disposal
• Dezincification resistant brass housing
• High grade synthetic material check valve cartridge
• High quality synthetic material test plug
• NBR seal ring
Observe the local requirements regarding correct waste
recycling/disposal!
Remedy
Open shutoff valves
Replace the valve cone
Replace the valve cone and the lip sealing
ring
Clean the sealing elements, replace if
necessary
Call Technical Customer Service
5
MU1H-1204GE23 R0212
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