share your knowledge and Sent to: favicenna@gmail.com

Sunday, December 7, 2008

Globe Valves

Valves [Lesson 3]

2. Globe Valves
Purpose Globe valves are used to control flow as they can operate quite safely at part openings. A good shutoff can also be achieved if required
Operation: Refer to Figure

When the hand wheel is turned clockwise, the disc is against a seat, stopping the flow. Turning the hand wheel anti-clockwise lifts the disc from its seat and allows flow to continue.

The high pressure is usually on the bottom of the plug, so that the stem, seal, etc. are not under continuous pressure.
Applications are widespread, including domestic water taps

No comments: