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■ Always prime the pump
The MX-F is not self-priming pump. Prime the pump every time the pump is operated. Do not run pump dry (operation
without liquid.), or internal parts seizing or excessive wear results.
■ Maximum operating pressure
Do not allow a discharge pressure to exceed the limits below.
Model
MX-F250
MX-F251
MX-F400
MX-F401
MX-F402/-F403
Pressrue limits (MPa)
0.25
0.33
0.22
0.28
0.43
■ Liquid conditions
Slurry
The MX-F series can not send slurry except the KK type with a SiC bearing and a SiC spindle.
The KK type can handle slurry up to 5% (concentration), 50μm (particle size) and 80Hs (hardness).
Contact us for details.
Performance change
Shaft power, discharge capacity and pump head varies depending on specific gravity and viscosity. The pump is
designed for a specified liquid. If you made a change to the specified liquid, contact us.
Temperature change
Viscosity, vapour pressure and corrosive nature vary with liquid temperature. Always take account of temperature
change.
►Allowable liquid temperatrue: 0-80°C (clean water)
►Allowable ambient temperature: 0-40°C
►Allowable ambient humidity: 35-85%RH
NOTE:
Contact us for an allowable liquid temperature range at each liquid type.
■ Intermittent operation
Frequent ON-OFF operation damages the pump in a short time. Do not make ON-OFF operation more than six times
per hour.
■ Disconnection of magnet coupling
Stop the pump immediately when the magnet coupling is disconnected. Otherwise magnetic force reduces.
■ Ascending area of a spike curve (in a performance curve)
When a specified point falls on an ascending area of a spike curve (generally, a flow is small in this area. See the
standard performance curves), check and observe the following points.
• There should be no possibility of trapping air in a supply tank or a discharge line.
• A discharge valve should be installed near the pump outlet to adjust a flow rate.
Installation
