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Any 1 have Idea of UNI 3823 spring and there design parameters and strength values

I have not got the answer for this submergence hence i posted

When i came across the dry motor submersible pump the motor has a limitation that it cant be used above 20m.whereas the wet motor submersible pump can be used till 350m.can i know why?pls advice.

When i came across the dry motor submersible pump the motor has a limitation that it cant be used above 20m.whereas the wet motor submersible pump can be used till 350m.can i know why?pls advice...

In Submersible pump, Dry motors are hermetically sealed with a high dielectric oil to exclude water from the motor. Wet motors are water filled motors for cooling.Like to know application wise how these motors differs.

Thanks for u comments. In most of the cases we can see submersible pumps uses wet motors, but there are some companies manufacture both wet and dry motors submersible pump.wht is the merits and demerits between them.if 1 performs quite well than the other what is the necessity 2 manufacture the...

Hi All, I like to know the difference between Dry motor and wet motor can any 1 explain.

In general what are the design elements that we need to look after in pump(centrifugal) that will reduce the "audible noise", as well as "pumping / water noise.

Thanks for ur comments guys seeing the criticality the customer asked to work on the outer profile of the casing without touching the volute area.

Hi all, Since in my centrifugal pump there is a necessity to vary the profile of the volute area in the dischare.suppose if u take the cross section aera near the vane tip it changes from .264 inch to .338inch this is the variation.so i have added baffle to aviod water re-circulation.wht design...