1.What is valve
Valves are mechanical or electro-mechanical devices that are used to control the flow and pressure of liquids, gases, powders, vapors,etc. through pipes or tubes, or from tanks or other system or process.
2, types of valves
2.1. Common types of valves include:
Ball Valve
Butterfly Valve
Check Valve
Gate Valve
Knife Gate Valve
Globe Valve
Needle Valve
Pinch Valve
Plug Valve
Pressure Relief Valve
2.2 Other types of valve
Aerosol Valves
Air Logic Valves
Balancing Valves
Blind Valves
Cartridge Valves
Casing Valves
Christmas Tree Valves
Cock Valves
Diaphragm Valves
Disc Valves
Double Block and Bleed Valves
Engine Valves
Faucet Valves
Float Valves
Hydraulic Valves
Piston Valves
Poppet Valves
Rotary and Hopper Valves
Solenoid Valves
2.3 Valves classified by function
· Isolation Valves: Ball valves, butterfly valves, diaphragm valves, gate valves, pinch valves, piston valves, and plug valves
· Regulation Valves: Ball valves, butterfly valves, diaphragm valves, globe valves, needle valves, pinch valves, and plug valves
· Safety Relief Valves: Pressure release valves and vacuum relief valves
· Non-Return Valves: Swing check and lift check valves
· Special Purpose Valves: Multi-port valves, float valves, foot valves, knife gate valves, and line blind valves
2.4 Valves classified by method of actuation, valves fall into one of three categories:
· Manual Valves: Typically adjusted by hand, these valves use handwheels, hand levels, gear wheels, or chains to actuate.
· Actuated Valves: Often connected to electric motors, air or pneumatic systems, hydraulic systems, or solenoids, these valves allow remote control and automation for high-precision or large-scale applications.
· Automatic Valves: Some valves activate when a specific flow condition is met. Examples include check valves closing during backflow or pressure release valves activating when an over-pressure condition is detected.
Valves are mechanical or electro-mechanical devices that are used to control the flow and pressure of liquids, gases, powders, vapors,etc. through pipes or tubes, or from tanks or other system or process.
2, types of valves
2.1. Common types of valves include:
Ball Valve
Butterfly Valve
Check Valve
Gate Valve
Knife Gate Valve
Globe Valve
Needle Valve
Pinch Valve
Plug Valve
Pressure Relief Valve
2.2 Other types of valve
Aerosol Valves
Air Logic Valves
Balancing Valves
Blind Valves
Cartridge Valves
Casing Valves
Christmas Tree Valves
Cock Valves
Diaphragm Valves
Disc Valves
Double Block and Bleed Valves
Engine Valves
Faucet Valves
Float Valves
Hydraulic Valves
Piston Valves
Poppet Valves
Rotary and Hopper Valves
Solenoid Valves
2.3 Valves classified by function
· Isolation Valves: Ball valves, butterfly valves, diaphragm valves, gate valves, pinch valves, piston valves, and plug valves
· Regulation Valves: Ball valves, butterfly valves, diaphragm valves, globe valves, needle valves, pinch valves, and plug valves
· Safety Relief Valves: Pressure release valves and vacuum relief valves
· Non-Return Valves: Swing check and lift check valves
· Special Purpose Valves: Multi-port valves, float valves, foot valves, knife gate valves, and line blind valves
2.4 Valves classified by method of actuation, valves fall into one of three categories:
· Manual Valves: Typically adjusted by hand, these valves use handwheels, hand levels, gear wheels, or chains to actuate.
· Actuated Valves: Often connected to electric motors, air or pneumatic systems, hydraulic systems, or solenoids, these valves allow remote control and automation for high-precision or large-scale applications.
· Automatic Valves: Some valves activate when a specific flow condition is met. Examples include check valves closing during backflow or pressure release valves activating when an over-pressure condition is detected.