There´s a large body of literature out there on valve selection. Water industry is a broad term. The valve type depends on the application. Where is the valve mounted, is there high temperature and pressure, is just on-off or are there any control requirements, etc. ? Often times you can use more than one valve style on the same application.
Added to the previous reply, and regarding industrial use, you must have in account the driving system, cycles, speed (if apply) decide if it is a critical point, accuracy of the flow to be measured (in the case of control valves) and very important, the type of fluid to be handled including chemical and physical properties.
Do not get fretted about all possibilities at the same time. Proceed in order with some criteria and not suitable models will be eliminated.
List could run like this (please fit to your requirements):
-Type of fluid (water, pulp, steam, slurry, abrasive)
-Chemical (acid, base, corrosive)
-Physical properties (viscosity, specific gravity, solid contents, non Newtonian)
-Temperature (very important if combined with chemicals since the behaviour of some change radically)
(By now you should have defined the materials for the valve)
-Application. what do you need? fill a tank as soon as possible, keep the level constant or maybe a constant and controlled flow.
-Size. Pay attention to fluid speeds.
-Driving. Is it accesible or not? Do you like circus and monkey ladders? It must be fast operation?.Pay attention again to fluid speeds.
Then you choose usually "bloodpowered motor", pneumatic or electric.
If you have opened or closed 4 old rustie valves DN400 in one hour via handwheel you know what I mean.
Do you have compressed air in the area? If only haves two valves with driving requirements, and you do not have a compressed air system already, maybe motorised valves would do more sense.
I hope this can be useful.
Best regards,
Abel
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"I am NOT an engineer, so I will not create bigger problems to show off..."
Or like I find time and time again where I work you use whatever happens to be in your store at the time. This is in no way an engineering practice, more like get the job done practice and if it holds then it is good enough.
I'm lucky in that I usually deal with sea water at pressures<6 bar so if things go wrong you just get a bit wet.
valve
Re: valve
