Pump Solutions Group Neptune Solenoid-driven Diaphragm Metering Pump ARPZ-31_61_12 - Manual (Page 52)

51
Other
s
Part
Recommended
replacement timeframe 31/61/12
2
1
Relief valve
Quantity per pump
Valve seat assembly Every 10,000 hours
Diaphragm assembly (diaphragm, protective diaphragm, spacer) Every 10,000 hours
1 Every 10,000 hours*
Air-release nozzle assembly 1 Every 10,000 hours
Part
Quantity per pump Recommended
replacement timeframe 31/61/12
2
1
Relief valve 1
Valve seat assembly Every 10,000 hours
Diaphragm assembly (diaphragm, protective diaphragm, spacer) Every 10,000 hours
Every 10,000 hours*
Air-release nozzle assembly 1 Every 10,000 hours
• Failure to replace the consumables may cause discharge (or injection) trouble and/or malfunctions.
• The replacement timeframes of the consumables have been determined under the prescribed conditions (clean
water, room temperature) prevailing at TACMINA’s test facilities.
• Since these timeframes will differ under the individual conditions prevailing on-site, use them as a general guide, and
replace the consumables at an earlier rather than later date.
Consumables
! CAUTION
• The durability of a hose/tube differs significantly depending on the chemicals with which it is used, on
the temperatures and pressures and on the presence of ultraviolet rays. Inspect the hoses/tubes, and
replace them if they have deteriorated.
NOTE
• TACMINA will continue to supply consumables for its pumps for a period of eight (8) years after the
manufacture of the pumps has been discontinued.
• “Parts kits” consisting of a complete set of consumables are available (except for some models).
For details on how to replace the consumables, refer to “Replacing the diaphragm”, “Replacing the valve seats and
check balls” and” Replacing the relief valve” (on page 30 to 35).
Model for injection of general chemicals: PZ-31/61/12-VEC/VFC/FEC/FFC/FTC
PZ-31/61/12-VEC/VFC
* The timeframe applies when the relief-valve function has not been activated at all. If it has been activated, replace it regardless of how long it has been in use.
PZ-31/61/12-FEC/FFC/FTC
* The timeframe applies when the relief-valve function has not been activated at all. If it has been activated, replace it regardless of how long it has been in use.
Part
Quantity per pump Recommended
replacement timeframe 31
2
1
Relief valve 1
Valve seat assembly Every 10,000 hours
Diaphragm assembly (diaphragm, protective diaphragm, spacer) Every 10,000 hours
Every 10,000 hours*
Air-release nozzle assembly 1 Every 10,000 hours
Model for injection of boiler chemicals: PZ-31-FEC (PP)
* The timeframe applies when the relief-valve function has not been activated at all. If it has been activated, replace it regardless of how long it has been in use.
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