POMPE CUCCHI MX Series, Руководство по эксплуатации и техническому обслуживанию

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Pompa ad Ingranaggi - Serie MX
Gear Pump - MX Series
30
1.4 NAME, TYPE
The standard pump construction is made of AISI 316 stainless steel with self-lubricating
bushes made of P.T.F.E.+graphite and mechanical seal in ceramic/graphite/FPM. The com-
plete series includes several models which vary in size, materials and mechanical seals.
Furthermore, the Manufacturer can also provide models with heating jackets, double me-
chanical seals, packing rings, magnetic drive, sanitary fittings, etc. The pump identification is
obtained by an alphanumeric code, an example of which is shown below:
- 00MX050/WXNT0N0: MX type pump, construction in AISI 316L stainless steel, rated flow
50 l/min. at 1500 rpm (cubic capacity 45.1 cm3/revolution), gears in AISI 316L, bushes
made of P.T.F.E.+graphite, single mechanical seal, equipped with safety valve.
1.5 NOISE EMISSIONS
-
Reference standard: CEN/TC 197/SC3 N 21 E -fig.8- ISO 3744 on 6 positions
-
Measured values:
1 - Equivalent weighted continuous acoustic pressure level
Leq = 79 dB(A);
2 - Maximum weighted instantaneous acoustic pressure
C (peak level) Lpc < 82 dB(C).
-
Test conditions: When measuring noise, the pumped liquid (ref. to oil with 30 cP viscosity)
must be introduced into the testing system at a speed of less than 0.8 m/s into pipes. It
must however reach laminar flow regime (thus the speed must be related to the viscosity)
and the conditions outlined in this manual must be respected.
1.6 APPLICATION FIELDS AND LIMITS. ALLOWED AND NOT ALLOWED
USES
Each machine shall be used according to the type of application, operating conditions and
liquid characteristics provided in contract specifications. Each variation which alters the in-
tended use of the pump is forbidden and the User is fully responsible for it (e.g. the use of a
liquid which is corrosive to pump materials rather than the recommended fluid, etc.). For var-
iations in use within the application limits (e.g. fluid viscosity variations) it is advised to con-
tact the Manufacturer in advance.
Max. working pressure, for pumps in standard execution, is 15 bar.
In any case, the use of “KK” or alike plastic gears to allow the pump to operate also
with poorly lubricating fluids, requires greater attention to avoid excessive or unex-
pected pressure loads.
It is absolutely forbidden to use the machine in hazardous environments (explosive
atmosphere, etc…), the use of hazardous substances (e.g. fluids with dangerous ga
s-
es
), in critical conditions (e.g. abnormal temperatures, etc…), which are not su
pplied
with the pump.
For pumps and pump units intended to be used in potentially explosive environ-
ments, please read carefully “Additional instructions for the operation and ma
nage-
ment of pumps and pump units intended to be used in potentially explosive atmos-
pheres (Directive 94/9/EC)”. In case of slipping of the magnetic coupling, the surface
temperature can rise up to 350°C in few seconds; therefore the temperature close to
the coupling must be continuously checked.
Pompe Cucchi S.r.l. declines every responsibility for the consequences arising from an im-
proper use of the machine which does not comply with what prescribed in this manual or
specifically requested when ordering.