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Operating condition of pump
[1]
Allowable pressure
Graphs below show maximum pressure resistance of pump. Pump discharge pressure should not exceed the
max. allowable pressure.
[2]
Slurries containing liquid
Liquid containing slurries can not be pumped as a general rule, however the pump with SiC bearing (KK type)
can handle liquid containing slurries max. 5% concentration, particle size max. 50 µ and hardness max. 80Hs.
Consult us in advance when you wish to handle liquid containing slurries.
[3]
Specific gravity and viscosity of pumped liquid influence pump performance
Shaft power, discharge capacity and head are influenced by specific gravity and viscosity of pumped liquid.
Pump is manufactured based on the information of specification and operating condition given to us when
ordered. If the informed specification and condition will be changed, ask us for the possibility of usage before
you use the pump.
[4]
Influence by temperature
Pump itself is not influenced by temperature change but pumped liquid changes its viscosity, vapor pressure,
chemical corrosion characteristics etc. according to the change of temperature. Therefore enough attention
should be paid to the change of temperature of pumped liquid.
MDF-L401
0.3
0.24
0
90
100
High temp. type (H)
High temp. type (H)
Temp
(deg. C)
Temp
(deg. C
Max. allowable press. (MPa)
MDF-L250
MDF-L425
0.3
0.16
0
90
100
0.5
0.45
0
100
MDF-L422, 423
0.5
0.4
0
100
Standard type
Max. allowable press. (MPa)
Standard type
High allow. press. type (HI)
Temp
(deg. C
Max. allowable press. (MPa)
Standard type
High allow. press. type (HI)
Temp
(deg. C)
Max. allowable press. (MPa)
Standard type
Ambient temp:
0~40 deg. C
Ambient humidity: 35~85%RH
