Valve selection depends on medium flowing trough your line, purpose(shut off or regulating), working conditions(temperature), actuation etc. There is a 'best' valve for every application, but every application is different and every valve type has lots of modificated variations. Selecting a...
Hi Guys,
I'm trying to find out what kind of isolation(shut off) valves are commonly used in hydrometallurgical processes. I can only find information on throttling valves, but I can't imagine that there are nog isolation valves, espacially when acid or other chemicals are used. Anyone who can...
I've come some further in my lift-plug orientated research, which make me think I can state the following:
All other mentioned valves are driven with low torque.
The eccentric plug and Camflex are designed for throttling.
Orbit and ecct. ball aren't reseated in open position, making seat wear...
Hi all,
I've been doing some research on several extraction processes using fluids, as in copper, nickel, uranium and gold mining.
However, I fail to find technical details on these processes. I'd like to find out some more about particle sizes, pressure in the process(bar) and what types of...
I'm currently not into a specific solution for a system, but more trying to broaden my expertise in different shut-off valves. This means I have no exact operational data to compare the different valves. However, I think this discussion is becoming pretty interesting as well.
I think that the...
Thanks again for the replies lads. I've done some research myself as well and I think Pennpiper's Orbit valves comes the closest to what my collegue meant.
personnally I think that, looking at the design of those eccentric valves, they don't seal completely close accept for low pressure. Further...
Thanks for your reply Roy. I'm thinking of an isolation valve with the same flow-characteristics as regular plug or ball valves. Their main difference is that lift plug valves are slightly lifted before being turned 90 degrees, in order to avoid friction and high torque within the seat.
If they...
Hello all,
A collegue told me that Lift Plug valves are, in some processes, good alternatives for ball or gate valves as they are full bore, pressure tight and do not wear whilst being turned. I know it is hard to determine how pressure tight a valve is in all conditions, but these are said to...
