51
Maintenance
Pump head
Head bolt
(cross-recessed
machine screws)
O-ring
(size: P14)
Nut
Retaining ring
Ball stopper
Discharge-side joint
Check ball
Valve seat
Ball stopper
Check ball
Valve seat
O-ring
(size: P14)
Ball stopper
Check ball
Valve seat
Suction-side joint
Retaining ring
Valve seat
Nut
Ball stopper
Check ball
Relief valve*
Air-release knob*
Discharge-side joint assemb
ly
V
alv
e seat assemb
ly*
Suction-side joint assemb
ly
V
alv
e seat assemb
ly*
Air-release nozzle assembly*
Suction-side joint
Tube fitting
Ball stopper
Check ball
Valve seat
Ball stopper
Check ball
Valve seat
Ball stopper
Check ball
Valve seat
Valve seat
Ball stopper
Check ball
Discharge-side joint
Tube fitting
Pump head
Relief valve*
Air-release knob*
Air-release nozzle assembly*
Head bolt
(cross-recessed
machine screws)
O-ring
(size: P14)
O-ring
(size: P14)
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
IMPORTANT
• Install the parts in the correct sequence and correct directions.
• Pay special attention to the sequence and directions for the joints and valve seat assemblies.
• Check the O-ring, check balls and valve seats for damage and dirt.
Series : PZD
Model : Small type (30R/60R/100R/30/60/100)
Liquid-end material: VTCE/VTCF
Model for injection of general chemicals (small type)
* Consumables that must be replaced at periodic intervals. For further details, refer to the “Consumables” on page 75 to 76.
✽
Also available is “Pump head assembly” containing all of the above parts.
Series : PZD
Model : Small type (30R/60R/100R/30/60/100)
Liquid-end material: FTCE/FTCF
48-57̲PZD総合取説̲E.indd 51
48-57̲PZD総合取説̲E.indd 51
2010/07/20 17:33:22
2010/07/20 17:33:22