This article shares the Summary of Valve Types Characteristics includes gate valves, ball valves, butterfly valves, globe valves, diaphragm valves, needle valves, plug valves.
Summary of Valve Types
Globe Valves:
- Suitable for regulating flow
- Tight shut-off
- Pressure drop when open
- Used for high pressure clean fluids
Ball Valves:
- Not suitable for regulating flow except in some specialized ball valves
- Tight shut-off
- Low pressure drop when open
- Used for gas, liquids or slurries
Butterfly Valves:
- Suitable for regulating flow
- Not suitable for tight shut-off
- Low pressure drop when open
- Used for low line pressure and large pipe line diameters
- Wide range of service: gas, liquids and slurries
Gate Valves:
- Not suitable for flow regulation, only suitable for on or off
- Tight shut-off
- Low pressure drop when open
Diaphragm valve:
- Suitable for on/off or narrow range throttling control
- Tight shut-off
- Low pressure drop when open
- Used for corrosive fluids and slurries
Needle Valves:
- Suitable for regulating flow
- Fine control in small diameter piping
- Tight shut-off
- Used for clean fluids that have low flows
- High pressure drop when open
Plug Valves:
- Suitable for regulating flow
- Tight shut-off
- Quick opening
- High pressure drop when
Non Return Valves:
- Allow flow in one direction only
- Self closing
- Low pressure drop when open
- Not suitable for reciprocating pump discharge
Pressure Relief Valves:
- Opens at pre-determined pressure level