Valves are essential components in fluid control systems, and they come in various types, each designed for specific applications. Common valve types include Air Valves, Angle Valves, Angle Throttle Valves, Gate Valves, Butterfly Valves, Check Valves, Globe Valves, Diaphragm Valves, Safety Valves, and many more. These valves can be actuated manually, electrically, or hydraulically, depending on the system requirements.
For example, a Butterfly Valve is often used in large-diameter pipelines due to its lightweight and compact design. A Gate Valve, on the other hand, is ideal for full-on or full-off flow control. Check Valves prevent backflow, while Safety Valves protect equipment from overpressure situations.
In addition to the valve types, there are also numerous parts that make up a valve assembly, such as the body, bonnet, disc, stem, seat, and seals. Each part plays a critical role in ensuring proper operation and longevity of the valve.
Standard specifications for valves typically include pressure ratings, temperature limits, materials of construction, and connection types. Common materials used in valve manufacturing include stainless steel, cast iron, bronze, and various types of rubber and polymer seals. For high-temperature or corrosive environments, specialized materials like nickel-chromium alloys or fluorinated elastomers may be required.
Understanding the terminology and specifications of valves is crucial for selecting the right component for a given application. Whether it's a simple ball valve or a complex solenoid-controlled system, knowing the function and characteristics of each part ensures safe and efficient operation. This comprehensive glossary covers not only the main valve types but also their key components and standard technical parameters.
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