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Types of Valves List
Valves are an integral part of fluid control systems in various industries. They come in a wide range of types, each designed to perform specific functions. Here is a list of some common valve types:
Common Valve Types
- Gate Valve: Opens by moving a gate or barrier out of the way of the fluid. Known for their compact size and minimal pressure drop when fully open.
- Globe Valve: Regulates the flow of fluid using a hollow, pivoting ball. Small, low maintenance, and requires no lubrication.
- Ball Valve: Operates with a quarter turn, providing easy on-off control with a 90-degree turn handle.
- Butterfly Valve: Known for its compact design and quick-acting rotary motion, ideal for tight spaces.
- Check Valve: Prevents backflow by automatically opening in the intended direction of flow and closing when flow reverses.
- Plug Valve: Controls flow with a cylindrical or conically tapered plug that can be rotated.
- Needle Valve: Used for precise flow regulation in small diameter piping systems.
- Pinch Valve: Ideal for handling solid materials, slurries, and liquids with suspended solids, using a linear motion.
- Diaphragm Valve: Operates with a flexible diaphragm and is suitable for controlling the flow of various media.
- Solenoid Valve: Controls fluid flow using an electric current and is commonly used in automated systems.
- Control Valve: Changes the flow passage size according to a signal from a controller to regulate fluid flow.
- Pressure Relief Valve: Activates to relieve pressure when the system exceeds a certain pressure threshold, improving safety.
- Rotary Valve: Controls the flow of liquid or gas by rotating passages in a transverse plug.
Special Purpose Valves
Besides the common types, there are also special purpose valves such as:
- Piston Valve: Used for specific high-pressure applications.
- Safety Valve: Ensures system safety by releasing excess pressure.
- Poppet Valve: Known for fast response times and high performance.
Each valve type has its unique characteristics and applications, making them suitable for different industrial processes and systems.
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