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Piping precautions
• Foreign matters such as sand and scale may enter pipework while service is performed. They may cause
fatal damage to the pump. Be sure to blow them out before operation. Also, do not apply adhesive too much
or leave a screw or nut.
•
If pipework directory weighs on the pump, the pump may deform. Be sure to install pipe supports.
• Flange connection must be free from any tension or distortion, or a leak or pipe damage may result.
• The suction line I.D. should be equal to or wider than the I.D. of the pump inlet.
• Always keep the inlet of the pump below the liquid level of the supply tank (flooded suction).
• The pump suffers greater pressure loss as the piping length gets longer. Excessive piping resistance may
damage the pump depending on operating conditions such as liquid viscosity, liquid specific gravity and pip
-
ing length. Contact us for detail.
■ Prohibited piping
P
P
P
P
P
The suction line I.D. is smaller than the
I.D. of the pump inlet. Risk of cavitation.
Suction lift application may adversely affect flow accuracy.
The suction line is too long. Risk of cavitation,
air ingress or greater flow pulsation.
Arched suction line may adversely affect flow accuracy.
Pipework