May I ask what the adjustment range is for a metering pump without a frequency converter? ? ?

2017-02-15View Original

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May I ask what the adjustment range is for a metering pump without a frequency converter? ? ?

Reply #22017-02-15

How much can the adjustment range be increased after adding variable frequency? ? Express the adjustment range as a percentage

Reply #32017-02-15

Don’t pumps have scales on them?

Reply #42017-02-15

0%~100%, with actual adjustment possible from 3%~80%+

Reply #52017-02-15

I would like to ask with your expertise: How does a plunger metering pump achieve measurement? ?

Reply #62017-02-16

The motor speed is theoretically constant, the distance covered per back and forth cycle is also fixed, and the volume of the pump chamber is theoretically constant as well

Reply #72017-02-16

Using a variable frequency drive with a metering pump is, in my opinion, essentially unnecessary if a fixed flow rate is required. Unless it is used in a production process that requires automatic adjustment of the feeding amount at all times.

Reply #82017-02-16

Theoretically, it’s still 0–100%

Reply #92017-02-16

Can the adjustment range reach 0-100 without frequency conversion?

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