Canned Motor Pump & Some Attention When Choosing The Pumps
Canned Motor Pump & Some Noted for Pump Selection
Canned Motor Pump, when the installation is often pay attention to power capacity, flow, pressure column. However, there is a very important parameter that if not pay attention will greatly affect the life of the pump is the NPSHr parameter.
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Note that the distance from the liquid side of the liquid to the center of the pump must be greater than or equal to NPSHr + 0.5.
When this height is not guaranteed, the fluid level will be lowered. The liquid gas flow is reduced. Not enough silver coal coolant of the fluid pump causes carbon silver to wear out. If it is not detected in time, the pump will cause damage to the Rotor and Stator fire pump.
Usually in industrial refrigeration systems. To ensure safety in operation. People usually install two pumps in parallel. When a pump is hit by a second pump failure, the pump will operate immediately to avoid any delay.
However, in order to control the two pumps in parallel, some attention is needed.
- In the pump system, the fluid level does not always work continuously.
- Limit the maximum number of continuous changes to two pumps immediately after a pump stops operating (due to automatic setting). Cause: When the pump stopped running and then run again automatically in the pump there is a vacuum when the pump immediately work when the charcoal silver of the pump is not liquids. This happens in very short time. However, if you set up several times, the charcoal silver age will be reduced.
Manual mode should be used to change the ability to work between two pump level when the problem. This requires monitoring by the operator.
Bơm cấp dịch Teikoku
No. 119, TA16 St., Thoi An Ward, Dist. 12, Ho Chi Minh City, 71513, S.R. Viet Nam
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Fax: (84) 28 35978097 / 36203298.png)
