Popeye,
you are right, normally one stage pumps with double suction impellers are balanced. But some pump manufactures are installing wear rings with different diameters to get a defined axial force in one direction.
At your pump with 2 stages and a very low specific speed ns of approx. 670...
Hi Pucp,
you are on the right way. If you use the recommendations from HI or the Sulzer Handbook you are on the save side. I am a Hydraulic engineer at the company Ruhrpumpen GmbH (www.ruhrpumpen.de). We often make proposal for pump sumps when we are offering pumps for these applications. To...