Debem BOXER Series - Page 40

5.1.5a 5.1.5b
5.1.8
di
POMPE PER L’INDUSTRIA
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rev
DATI TECNICI
unità di
misura
BOXER
7
BOXER
15
MICRO
BOXER
MINI
BOXER
BOXER
35
BOXER
50
BOXER
81
BOXER
90
BOXER
100
BOXER
150
BOXER
251-252
BOXER
502
BOXER
522
BOXER
503
Aacchi aspirazione/mandata
pollici              
Aacco aria
pollici              3
Pressione aria (MIN-MAX)
bar              
Solidi di passaggio MAX
              
Capacità aspirazione a secco


 3 3            
Prevalenza max. (
               
Portata MAX



l              
Temperatura
MAX uido


               
               
               
Temperatura
MAX uido


PP               
               
               
Peso
(a vuoto)
 Kg              
 Kg              
ALLU Kg              
 Kg              
Rumorosità 
              
2.7 CARATTERISTICHE TECNICHE
I dati tecnici di prestazioni delle pompe BOXER si riferiscono alle esecuzioni standard.
I valori di “Portata MAX” e “Capacità di Aspirazione” sono riferiti al pompaggio di acqua a 20°C, con un tubo di
aspirazione immerso con prevalenza di 50 cm (vedi gura 1).
NOTA
la capacità di aspirazione negativa a secco dichiarata è riferita al pescaggio di uidi con viscosità e peso specico
pari a 1. Il rendimento e la durata delle membrane della pompa è inuenzato dai seguenti fattori:
- viscosità e peso specico del uido;
- lunghezza e diametro del tubo di aspirazione.
ASPIRAZIONE NEGATIVA: con uidi Max no a 5.000 Cps a 20°C ed un peso specico massimo di 1,4 Kg/l.
ASPIRAZIONE SOTTO BATTENTE: con Max uidi no a 20.000 Cps a 20°C (vedere dati Modello pompa).
Con viscosità superiori
intervengono fattori sici che richiedono una corretta valutazione pertanto è sem-
pre necessario contattare preventivamente l’Ufcio Tecnico del Costruttore.
Nelle tabelle qui di seguito vengono riportati i Dati Tecnici ed i valori di massima degli ingombri, dei punti di staf-
faggio ed i pesi; per i valori dimensionali ed i dati tecnici specici della fornitura, consultare le Schede
Tecniche del modello specico.
g. 1
20°C
ASPIRAZIONE NEGATIVA
Max 5.000 Cps a 20°C
(peso specico di 1,4 Kg/l)
SOTTO BATTENTE
Max 20.000 Cps a 20°C
0,5 m
5.1.7 5.1.6
of
INDUSTRIAL PUMPS
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 If an adjustment of the pump speed is required according to the viscosity of the uid to be pumped, it is possible
to operate in two different ways:
 Adjust the network air supply pressure;
 Choke the air volume (ow rate) using the air control valve on the pump.
CAUTION: risk of premature wear and/or diaphragm breakage.
Do not close or operate on the product suction valve to choke the uid.
 Check that there is no abnormal noise during operation and that “gas” is not present in the outlet uid; the presence
of vortices on the suction point creates cavitations and malfunctions.
Besides being damaging for the pump, cavitation is particularly dangerous in a potentially explosive atmo-
sphere: it is necessary to check that the pump has been correctly sized; if in doubt, do not hesitate to
contact the DEBEM Technicians.
CAUTION: risk of damaging the pump and/or premature wear/diaphragm breakage.
An abnormal noise or the presence of “gas” in the uid exiting from the pump indicate an abnormal con-
dition for which it is always necessary to determine the cause before continuing; in such cases, imme-
diately stop the pump and resolve the anomalous condition before continuing.
 If the installed pump has negative suction or used with highly viscous uid, reduce the pump speed by
acting on the air control valve. Unprimed pumps have a negative suction capacity that varies according to
the type of diaphragm and packing mounted; CONTACT THE MANUFACTURER’S CUSTOMER ASSIS-
TANCE SERVICE FOR FURTHER DETAILS.
CAUTION
For pumps with split manifold, do not use uids with different viscosities; stall, premature diaphragm
and pneumatic circuit wear/breakage may occur.
 The diaphragms, (internal and in contact with the product) are components subject to wear. Their duration is strongly
affected by the conditions of use and by the chemical and physical stresses. From tests carried out on thou-
sands of installed pumps (with head equal to 0.5 m at 20°C), it was found that the normal duration exceeds
100,000,000 (one hundred million) cycles.
CAUTION
For safety reasons, in environments with a potentially explosive atmosphere and for pumping ammable uids
(admitted by the marking), the pump diaphragms must be disassembled and checked every 10,000,000 (ten
million) cycles and replaced every 20,000,000 (twenty million) cycles.
Perform the maintenance and replacements provided for by the Manufacturer on a regular basis.
5.1.5 SPEED ADJUSTMENT
MAX
Negative
suction
Noise Gas