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Slurry pump too large for application - speed reduction (2 replies)
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We have an application that requires a 1.5" x 1" slurry pump.
However, the spare pumps that we have available are a Warman 3/2 and a Flowserve 2.5/2. We would like to try to reduce the throughput of these pumps by changing out the pulleys and/or using a VFD for motor control.
Does anybody know if, for example, reducing the impeller speed by half results in 50% less slurry pumped? i.e. is the pump volume a 1:1 relationship with speed or is it more likely to follow a curve?
Are there any pitfalls to doing this? We have very low head requirements.
Thanks for your input.