6.2.2d
6.2.2c
6.2.2a
6.2.2f
6.2.2b
6.2.2e
Page 46
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INDUSTRIAL PUMPS
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Chapter 6 - ROUTINE MAINTENANCE
Translation of original instructions -
S
CUBIC-
S
BOXER
rev.
2021
6.2.2
PRODUCT CIRCUIT TIGHTNESS CHECK
The seal of the product circuit of the pump must be checked after the first 2 hours
of operation and then
periodically every 500 hours, working as follows:
CAUTION
:
risk of contact with toxic or corrosive fluids and/or ejection of pressurised fluid.
Before working in the vicinity of the pump, it is necessary to wear suitable Personal Protective Equipment
(PPE)
(see Technical and Safety Data Sheets for the liquid being treated)
.
Safety requirements for the tightness check:
•
Pump stopped with air supply disconnected and interlocked and residual pressure discharged;
•
Pump with the external surfaces clean;
•
Product isolation valves (suction and discharge) open;
• Overflown pump.
CHECKING FOR SUCTION TIGHTNESS
:
The pump suction tightness must be checked when the pump is running:
6.2.2a
Visually check for leaks on the suction circuit and on the pump;
6.2.2b
If leaks are detected, immediately stop the pump, disconnect the air supply and discharge the residual
pressure from the internal pneumatic circuit.
6.2.2c
If leaks are detected, check the tightening of the fastening parts that are part of the suction circuit (hose
connection, clamps, fittings) and/or of the screws of the pump casing and manifold.
CAUTION
: risk of product leakage.
The tightness check ensures a correct seal of the product circuit; in the event of leaks or product leaks,
it is always necessary to carefully check that the pump and the internal sealing components are intact
before commissioning.
The check of the hydraulic seal of the product suction circuit is completed.
CHECKING FOR DELIVERY TIGHTNESS:
The pressurised check must be carried out with the pump running, operating as follows:
6.2.2d
Visually check for leaks on the delivery circuit and on the pump.
6.2.2e
If leaks are detected, immediately stop the pump, disconnect the air supply and discharge the residual
pressure from the internal pneumatic circuit.
6.2.2f
Tighten the parts concerned on the delivery line (pipe connection, clamps, fittings) and/or the screws
of
the pump body and manifold as described in
Section 6.3 CHECKING TIGHTENING
.
CAUTION
: risk of product leakage.
The tightness check ensures a correct seal of the product circuit; in the event of leaks or product leaks,
it is always necessary to carefully check that the pump and the internal sealing components are intact
before commissioning.
The check of the hydraulic seal of the product delivery circuit is completed.