Pump Solutions Group Neptune Solenoid-driven Diaphragm Metering Pump ARPZ-31_61_12 - Manual (Page 33)

32
Maintenance
Check ball
Valve seat
Ball stopper
Seat packing
Check ball
Valve seat
Ball stopper
Seat packing
Discharge-side joint
Tube fitting
Head bolt
(cross-recessed
machine screws)
Pump head
Seat packing
Ball stopper
Check ball
Valve seat
Seat packing
Ball stopper
Check ball
Valve seat
Tube fitting
Suction-side joint
Relief valve*
Air-release nozzle assembly*
O-ring
(size: P12)
O-ring
(size: P12)
Discharge-side joint assemb
ly
V
alv
e seat assemb
ly*
Suction-side joint assemb
ly
V
alv
e seat assemb
ly*
Replacing the valve seats and check balls
* Consumables that must be replaced at periodic intervals. For further details, refer to the “Consumables” on page 51 to 52.
✽ Also available is “Pump head assembly” containing all of the above parts.
■Liquid-end material: FTC
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