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Valve Selection

Valve Selection

Valve Selection

(OP)
I'm looking to replace a few 6" pinch valves (one manual and one automated).  The material being conveyed is nickel chips (approx. 17-25mm in diameter and approx. 3-5mm thick, density of 8.9g/cc @ 300K).  The rubber internals are wearing out (gravity feed piping system @ 40 degrees off of a 80T storage bin) and we need to replace them with metal.  I was looking at a full port ball valve for the manual and either a knife gate/plug valve for the auto.  I'd appreciate any and all comments on the suitability of these valves in this type of service.  Thanks.

TP

RE: Valve Selection

You might also want to talk to some of the guys who specialize in valves for solids conveying.  Premier Pneumatics and Salina Vortex come to mind.  

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