10
MAINTENANCE
all the operation must be carried out by qualified personnel
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do not carryout maintenance and/or repairs with the air circuit under pressure; only the air supply must be used to
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stop the dampener by closing the three-way valve to discharge any residual pressure from the dampener’s pneu-
matic circuit
discharge the product being pumped and close the product onoff valves
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carry out periodic inspections (2 ÷ 30 days in accordance with the fluid pumped) to check the filtering elements
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cleaning
carry out periodic inspections (3 ÷ 5 months in accordance with the fluid pumped and with the environment condi
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tions) to ensure the correct operation of the system start/stop units
he presence of fluid under the dampener casing may indicate failures to the dampener
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damaged parts must be replaced with complete original parts and not with repaired parts
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the replacement of damaged parts must be carried out in a clean and dry place
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remove the powder deposits from the external surfaces of the pulsation dampener with a cloth soaked in suitable
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neutral detergents
periodically control and clean the internal surfaces with a damp cloth
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RECOMMENDATIONS
WARNING: before performing any maintenance or repair work on the pump and dampener, disconnect the pump from
the air supply line. Disconnect the hydraulic connections and discharge the product that is being pumped
all the operation must be carried out by qualified personnel
use gloves, goggles and acid-resistant clothing when disconnecting from the system and washing the dampener
wash the dampener before carrying out maintenance operations
do not disperse the washing waste into the environment
DISASSEMBLY
Bolts are the type with right thread
Clean all the dampner external surfaces using a damp cloth
DIAPHRAGMS REMOVAL
separate the dampener’s casing removing the fixed screws
clean all the dampner surfaces using a damp cloth
remove the cap (if present)
PNEUMATIC VALVE REMOVE
unscrew the valve from the casing
WARNING: to avoid incorrect reassembly and subsequent malfunction of the dampener the automatic valve must not
be open
INSPECTION
Check the absence of:
excessive abrasion of the thermoplastic parts
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clots and/or agglomerates due to the pumped fluid
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deformations and/or surface lesions of the diaphragms
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deformations and/or surface lesions of the dampener casing
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replace the parts: broken, cracked, deformed
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reopen all the clogged ducts and eliminate any chemical agglomerates
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Clean all the surfaces before reassembly, particularly the OR gaskets seats (risk of leaks for dripping)
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WARNING: Should the dampener be returned to the manufacturer or service center, you must empty it out comple-
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tely. In toxic, noxious or other types of dangerous products have been used, the dampener must be suitably treated
and washed before it is sent
CLEANING AND REPLACING THE DIAPHRAGMS
control and internal cleaning every 500.000 cycles
diaphragm check every 5.000.000 cycles
diaphragm replacement every 20.000.000 cycles
