What is a Butterfly Valve?

Q. What is a Butterfly Valve?
A. Butterfly valves use a disc that is turned to open or close the flow.  A lever, gear, or actuated operators may be used.  On large sized valves, a gear operator is recommended due to the mount of torque needed to open or close the valve.  The term "lug style" refers to threads being integral to the valve and allows the valve to be used at the end of a piping system.  Otherwise, flanges on each side of the valve must be used.  With butterfly valves, the user must take precaution against the over-tightening of mating flanges.  If there is "full" liner, the only wetted parts are the liner and disc; this also eliminates the need for gaskets.  The recommended uses for butterfly valves are on/off and modulating service, suspended particles and high velocity systems. 
Article Title:
What is a Butterfly Valve?
Article Summary:
A brief description of a butterly valve.
Article Date:
5/30/2003
Article ID:
617
0 user(s) found this article useful. Was this article useful to you?
Share

Information disclaimer:

The information contained in this article is for general information purposes only. The information is provided by United States Plastic Corp. and while we endeavor to keep the information up to date and correct, we make no representations or warranties of any kind, express or implied, about the completeness, accuracy, reliability, suitability or availability with respect to the website or the information, products, services, or related graphics contained on the website for any purpose. Any reliance you place on such information is therefore strictly at your own risk.

In no event will we be liable for any loss or damage including without limitation, indirect or consequential loss or damage, or any loss or damage whatsoever arising from loss of materials, time or profits arising out of, or in connection with, the use of this information.