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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. Release pressure on outlet side (e.g. through water tap)
3. Close shutoff valve on outlet
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 Disc guide
2 Spring
3 Valve disc complete
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.
/
"
5534900
1
2
/
"
5535100
3
4
1"
5531500
1
/
"
5535300
1
4
1
/
"
5535500
1
2
2"
5535700
/
"
2061400
1
2
/
"
2061500
3
4
1"
2061600
1
/
"
2061700
1
4
1
/
"
2062000
1
2
2"
2062400
/
"
0900356
1
2
/
"
0900357
3
4
1"
0900358
1
/
"
0900359
1
4
1
/
"
0900360
1
2
2"
0900361
GB
9. Disposal
• Brass housing
• Brass threaded connections
• Red bronze threaded connections (only for 1/2" and 11/4")
• High grade synthetic material disc guide and disc
• EPDM for lip seal ring
• Stainless steel spring
• High grade synthetic material blanking plugs
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
4 Hexagon-plug with copper
sealing-ring R
/
" (5 pcs.)
1
4
5 Seal washer
5
all
S06M-1/4
/
"
5351200
1
2
/
"
0901445
3
4
1"
0901446
1
/
"
0901447
1
4
1
/
"
5163000
1
2
2"
5163100
MU1H-1202GE23 R0116
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