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<Consumables List>
Table 6.1 Consumables List(DA-121D,241S series)
Components
Quantity
Material
Average life
121D
241S
Inlet Filter
1
1
Stainless steel
―――
Outlet Filter
1
1
Urethane
6000 h
Diaphragms
2
2
Synthetic rubber
(EPDM)
6000 h
A valve
3
2
PTFE
6000 h
C valve
1
2
PTFE
6000 h
B valve Retainer
2
2
SUS
6000 h
A valve Retainer
2
2
PTFE
6000 h
O rings (P-48)
4
4
Synthetic rubber
(FPM)
6000 h
O rings (P-18)
2
2
Synthetic rubber
(FPM)
6000 h
O rings (N-15)
2
4
Synthetic rubber
(FPM)
6000 h
Bearings
1 set
1 set
―――
15000 h
Note that the average life for a component varies with the conditions of use.
Always follow 4.1 Cautions for Operation, and remember that life is extended by running the
pump at minimal load (running the pump at minimal load is operation at the achieved pressure
(inlet closed)).
Bearings are replaced by the manufacturer’s service division.
<Replacement and Cleaning Guide>
Replace or clean components if performance is reduced or the following symptoms become
apparent.
Inlet Filters
: Clean if dirty, or covered with particles.
Outlet Filters : Replace if dirty, hard, or stuffed.
Diaphragms
: Replace if rubber is deformed, hard, or cracked.
Valves
: Replace if deformed, hard, or cracked.
O rings
: Replace if hard, cracked, or stretched.
Bearings
: Request manufacturer for repair if abnormal noises, or abnormal motor
vibration, is noted.
<Locations for Maintenance and Inspection>
Table 6.2 Locations for Maintenance and Inspection
Period of
operation
Inspection item
Inspection details
Method of
inspection
3000 hours
Outlet Filters
Dirty, or covered with particles
Visual inspection
Inlet Filters
Dirty,hard or stuffed
Visual inspection
Valves
Deformed, hard, or cracked
Visual inspection
O rings
Hard, cracked, or stretched
Visual inspection
Bearings
Abnormal noises
Listen
Diaphragms
Wear, hard, or cracked
Visual inspection
