Valve Selection Guide
The suitability of a valve for a particular application is decided by the materials used in relation to the conveyed fluid as well as its mechanical
design. The table below can be used as a valve selection guide.
| Conveyed Fluid |
Nature of Fluid |
Valve Function |
Type of Disc |
| Liquid |
Neutral
(Water, Oil, etc) |
On/Off |
Gate |
| Rotary ball |
| Plug |
| Diaphragm |
| Butterfly |
| Plug gate |
| Control valve, modulating |
Globe |
| Butterfly |
| Plug gate |
| Diaphragm |
| Needle |
Corrosive
(Acid, alkaline etc.) |
On/Off |
Gate |
| Plug gate |
| Rotary ball |
| Plug |
| Diaphragm |
| Butterfly |
| Control valve, modulating |
Globe |
| Diaphragm |
| Butterfly |
| Plug gate |
Hygienic
(Food, beverages, drugs etc) |
On/Off |
Butterfly |
| Diaphragm |
| Control valve, modulating |
Butterfly |
| Diaphragm |
| Squeeze |
| Pinch |
| Slurry |
On/Off |
Rotary ball |
| Butterfly |
| Diaphragm |
| Plug |
| Pinch |
| Squeeze |
| Control valve, modulating |
Butterfly |
| Diaphragm |
| Squeeze |
| Pinch |
| Gate |
| Fibrous Suspensions |
On/Off,
Control valve, modulating |
Gate |
| Diaphragm |
| Squeeze |
| Pinch |
| Gas |
Neutral
(Air, Steam etc) |
On/Off |
Gate |
| Globe |
| Rotary ball |
| Plug |
| Diaphragm |
| Control valve, modulating |
Globe |
| Needle |
| Butterfly |
| Diaphragm |
| Gate |
Corrosive
(Acid vapors, chlorine etc.) |
On/Off |
Butterfly |
| Rotary ball |
| Diaphragm |
| Plug |
| Control valve, modulating |
Butterfly |
| Globe |
| Needle |
| Diaphragm |
| Vacuum |
On/Off |
Gate |
| Globe |
| Rotary ball |
| Butterfly |
| Solids |
Abrasive Powder
(Silica, etc) |
On/Off,
Control valve, modulating |
Pinch |
| Squeeze |
| Spiral sock |
| Lubricating powder (graphite, talcum, etc |
On/Off,
Control valve, modulating |
Pinch |
| Gate |
| Spiral sock |
| Squeeze |
|
|
Resource : By Laurance Carr Director of Research and Engineering Edward Valves, Inc. Subsidiary of Rockwell Mfg Co.
