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Participant

Join Date: Sep 2010
Posts: 2

mechanical

09/15/2010 3:24 AM

where gate valve and ball valve is used? what will happen its interchanged?

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Pathfinder Tags: valves
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Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

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#1

Re: mechanical

09/15/2010 5:18 AM

A ball valve is handy for situations where an on/off is required to the flow at frequent intervals and the materials of construction need to be something other than brass/bronze/cast iron.

Ball valves get unwieldy and rather heavy as the pipe diameter increases.

For the fullest answer, refer to the end Client's piping specifications.

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Associate

Join Date: Jul 2010
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#2

Re: mechanical

09/15/2010 8:05 AM

Basically the Piping Specification of the End User should define these requirement as the end user is the operator.

Normal practice is that selection is based not on fixed universal rules but depends on service conditons, line size / class, process / operability requirements etc.

In Common practice: Smaller sizes 1/2" upto 20"Ø Ball Valves are desired or better suited, and over the 20"Ø Gate vavles are applicable.

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