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We currently produce a range of peristaltic and centrifugal pumps. We therefore produce a TCF file and do the relevant testing to comply to the complete units (pumps, motors, gearboxes, etc) we sell. One question we have though is when we sell a pump without a motor and gearbox as we do outside...

I am currently trying to create some pump casings for pump units to NACE MR0175 specifications. I have the 2001 version but i think more materials have been added recently and i was wondering if anybody could advise me on the following: Production method: Casting Maximum working pressure: 100...

Thank you all gentlemen, with your help I have decided upon Super Duplex grade UNS32760 which gives me more than enough tensile strength to cover the applications i will encouter normally and also suitable corrosion resistance.

Thank you for all the information above, this is of great interest. Would any type of coating such as PTFE make the 12.9 bolts suitable?

Hi Everyone. I am currently building stainless steel pumps which are used in high pressure (up to 200 bar) applications and mounted on environments such as Oil platforms in the oceans. At current the main fasteners I am using are high tensile steel such as 12.9 grade. The pump is then painted...

Hi everyone Thanks for all the comments but I think I have found a really useful web page that will help a lot on this, everything i want to know anyway. http://www.gowelding.com/pv/flange.htm BexVerder

Hi EdStainless Like I say earlier, im not looking for fantastic corrosion reistance, just enough to cover the corrosion properties of 316L stainless as the majority of the product is made from 316L. Diameter wise we are talking around 2 inch (50mm) to 4 inch (100mm) cans with a wall thickness...

Hi People Can anybody help me? I currently use a mixture of 316L stainless and Hastelloy C276 in the manufacture of some magnet driven pumps. The Hastelloy is used because the application is as a thin can which sits between the inner magnet and the outer magnet for containment. It is used...

Thanks JLSeagull for the info. Is these tables available anywhere on line or would i have to purchase the book?

I am looking for information about pressure ratings recommended for ANSI B16.5 flanges. I have already found a chart for this detailing the allowable pressure ratings for steel pipe flanges but the material I am using is Stainless steel 316(CF8M) and I was wondering if anybody knows where you...