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Tag Archives: Valves

About Globe Valves

About Global Valves

Overview: A Globe valves is a linear motion valve and are primarily designed to stop, start and regulate flow. The disk of a Globe valve can be totally removed from the flow-path or it can completely close the flow-path. Conventional Globe valves may be used for isolation and throttling services. Although these valves exhibit slightly higher pressure drops than straight=through ... Read More »

Standards for Valves

standards of valves

Standard Title ASME B16.34 Valves – Flanged, Threaded, and Welding End API 594 Wafer Check Valves API 599 Steel and Ductile Iron Plug Valves API 600 Steel Gate Valves, Flanged and Buttwelding Ends API 602 Compact Steel Gate Valves API 603 Class 150 Cast, Corrosion-Resistant, Flanged – End Gate Valves API 608 Metal Ball Valves – Flanged and Buttwelding Ends ... Read More »

Process Flow Diagram Symbols – Valves

Piping codes and standards

Gate valve is a device used to control the flow of liquids and gases. Check valve also known as one-way valve, is to prevent the line of medium back. Globe valve is a mechanism used to control or stop the flow of liquid or gas through a pipe. Ball valve is a valve with a spherical disc, the part of ... Read More »

Questions Related to Valves

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1. What is the function of valves? A. Isolation. B. Regulation. C. Non-return. D. Special purpose. 2. How the valves are classified based on their function? A. Isolation. 1. Gate valve. 2. Ball valve 3. Plug valve. 4. Piston valve. 5. Diaphragm valve. 6. Butterfly valve. 7. Pinch valve. B. Regulation 1. Globe valve. 2. Needle valve. 3. Butterfly valve. ... Read More »

Check Valves

Check valves

Check valves A check valve is a mechanical device, a valve, that normally only allows fluid to flow through it in one direction. A double check valve is often used as a backflow prevention device to keep potentially contaminated water from siphoning back into municipal water supply lines. A clapper valve is a type of check valve used in or ... Read More »

Valves

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Valves are used for main three purposes listed below. For Isolation of flow. For Regulation of flow. For avoiding the reversal of the flow. The valves used for isolation cannot be used for regulation but other way round is possible. Various types of valves. 1) Gate valve 2) Ball valve 3) Plug valve 4) Butterfly valve 5) Globe valve 6) ... Read More »

Valve Symbols

valves

Process Flow Diagram Symbols – Valves Gate valve Is a device used to control the flow of liquids and gases. Check valve Also known as one-way valve , is to prevent the line of medium back. Globe valve Is a mechanism used to control or stop the flow of liquid or gas through a pipe . Ball valve Is a ... Read More »

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