Shut off valve for abrasive material
Shut off valve for abrasive material
(OP)
Hi folks,
I am looking to source a shut-off valve for a highly abrasive material,(and I mean highly abrasive).
At this stage I want to look at designs etc.
Any comments appreciated.
Speedy

I am looking to source a shut-off valve for a highly abrasive material,(and I mean highly abrasive).
At this stage I want to look at designs etc.
Any comments appreciated.
Speedy






RE: Shut off valve for abrasive material
http://www.plastomatic.com/bsd.html
RE: Shut off valve for abrasive material
e.g. dry; wet ( if so % solids) temperature size any chemical / corrosive complications quantity / volume intermittent / contiuous critical application /
etc
mac
RE: Shut off valve for abrasive material
What macmil said.
RE: Shut off valve for abrasive material
Red valve make a series of rubber valves for slurry service. These are pinch valves.
Valve technologies have a ceramic coated ball valve designed for severe service. This has been used on slurries and boiler blown down.
The abrasion intensifies as the valve closes and the velocity increases for the last portion of closing.
RE: Shut off valve for abrasive material
www.mogas.com
Cheers,
CanuckMiner
RE: Shut off valve for abrasive material
Gerry Lesperance, he should be able to deliver an abrasion resitant valve as he builds a valve with abrasion resistant materials.(high chrome irons). Please remember to refer my name to him.
RE: Shut off valve for abrasive material
You're talking metal seated, trunion with a boronized ball. The ferric boron matrix is integral to the steel and therefore does not flake or chip off. The only thing you need consider is sensitivity to shock impact, the ball tends to shatter like glass if hit with enough energy.
Ball geometry is also a factor since the boronizing process is run at elevated temperatures. You risk loosing spherical diameter, so the ball must be packed in such a fashion as to minimize sag under it's own weight.
I found the Grove product line ball geometry to favor the boronizing process, well up to NPS 36. Expect seat lifetime to be approximately 66% to 75% that of a clean environment.
Hope this helps.
Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada