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Centrifugal Pump Performance Guarantee

Centrifugal Pump Performance Guarantee

Centrifugal Pump Performance Guarantee

(OP)
Can anyone please help what type of performance guarantee should be obtained from the vendor for a centrifugal pump?

RE: Centrifugal Pump Performance Guarantee

That depends on what you're looking for.

What you might want is a factory performance test, which will give you a certified curve. You'll pay extra for it, of course.

The manufacturer can't guarantee how a pump will perform in your installation, but they can guarantee its performance on the test stand at the factory.

RE: Centrifugal Pump Performance Guarantee

There are standard test codes which set out guaranteed performance tolerances - in my opinion the ISO tes code is the best but depends on where you are in the world as to which code is used.

RE: Centrifugal Pump Performance Guarantee

It depends on your goals and how critical the pump performance is>  However in general

The Hydraulic Institute test code class A is the most stringent.

ISO 9906 is widely used and has 2 classes of acceptance.  In my opinion class 1 is ok for most general purpose pumps.  Class 2 is so lenient as to be useless.

There are other codes out there such as DIN 1944, API 610, ISO 3555 and ISO 2548, but these are less widely used.

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