PUMPS FOR PAINT WATER BASE

[gorkus]

COULD YOU TELL ME ABOUT WHAT MATERIALS I NEED TO USE IN ORDER TO PUMP A PAINT WATER BASE? I DONT KNOW HOW ABRASIVE IT´S.
TYPE OF PUMP: VANE PUMP A 495 RPM
SOLIDS :15%
VISCOSITY: 2000 mPa.s
flow: 30 m3/h
density: 1.1 Kg/dm3
Tª: 20ºc
PH :NEUTRO.
I THINK THAT I SHOULD USE :
CASING, HEADS : NI-RESIST-2
VANES: POLYMER
ROTOR: NI RESIST
SHAFT : HIGH STRENGTH STEEL.
MECHANICAL SEALS :
VITON, SILICON CARBIDE

ITS POSSIBLE TO USE CAST IRON CASING AND HEADS?
THANKS.

 

[EdStainless]

In addition to how abrasive it might be, some paints have limits on shear that they will tollerate.

The corrosion resistance issues are probably linked to duty cycle. All that i can tell you is that some water based paints tend to be fairly corrosive and all of the paint lines that I have seen are 100% stainless.

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Corrosion never sleeps, but it can be managed.

http://www.trenttube.com/Trent/tech_form.htm