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Allowable nozzle loads - ANSI/HI 9.6.2-2001 - what pumps comply?

Allowable nozzle loads - ANSI/HI 9.6.2-2001 - what pumps comply?

Allowable nozzle loads - ANSI/HI 9.6.2-2001 - what pumps comply?

(OP)
Guys are any of you familiar with the ANSI/HI 9.6.2-2001 standard?  This is the standard setting forth allowable nozzle loads for ANSI centrifugals.  Do any of the current manufacturer's offerings comply?  I bet they don't.  This is the first I've heard of it.  Thanks  -  Pete

Thanks!
Pete

RE: Allowable nozzle loads - ANSI/HI 9.6.2-2001 - what pumps comply?

I never heard of it either.
What are some of the nozzle loads given or how do they specify the loads?

PUMPDESIGNER

RE: Allowable nozzle loads - ANSI/HI 9.6.2-2001 - what pumps comply?

(OP)
Some of the loads are as follows:

For a 6x8-13, at the suction flange, allowable axial force = 3500 lb, allowable vertical tangential force = 3180 lb, allowable horizontal tangential force = 2000 lb


 

Thanks!
Pete

RE: Allowable nozzle loads - ANSI/HI 9.6.2-2001 - what pumps comply?

Actually it's two standards, not one - I think what you're getting at is that ASME B73.1 2001, paragraph 5.1.2, states allowable flange loading shall be in accordance with Hydraulic Institute 9.6.2.  I have to admit I personally don't worry about it much with ANSI pumps, if I'm buying a pump I have the vendor provide their allowable nozzle loads on their GA's and give those numbers to my designers.

RE: Allowable nozzle loads - ANSI/HI 9.6.2-2001 - what pumps comply?

(OP)
In my case it is a very worrisome topic because most of my applications involve fairly high temperature service, i.e. 150°-350°, and large Ø lines.  ANSI pumps are not as stout as API pumps, and most of the owners in this area use ANSI exclusively, so I am constantly having to fight this.

Thanks!
Pete

RE: Allowable nozzle loads - ANSI/HI 9.6.2-2001 - what pumps comply?

I think the simple solution here is that the ANSI std pumps are not really designed for pipe loads.

Naresuan University
Phitsanulok
Thailand

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