Introduction of Industrial valves

What you need to know about the Butterfly valve?

What you need to know about the Butterfly valve?

  • Friday, 17 December 2021
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What you need to know about the Butterfly valve? 

What you need to know about the Butterfly valve


What you need to know about the Butterfly valve?-The Use

Butterfly valves are widely used in Urban construction,petrochemical,metallurgy,electric power industry medium channels to cut off or regulate medium flows.


What you need to know about the Butterfly valve?-The Features 

The butterfly valve is the best open and closure devise in the pipeline,and leads thentrend of open and closure devise.Its main features are :

1.Quick open and closure,butterfly valve can easily achieve by roating 90° enables automated remote control;

2;simple structure,small size,light weight,small installation space;

3.Butterfly valve 's metal seated and soft seated structure canbe used in a variety of conditions,good sealing performance,long service life;

4.Butterfly valve adopts fire safe design;

5.Full open condition enables small flow resistance ,and half open condition allows flexible flow control;

6.Low operating torque value,simple and quick operation.


What you need to know about the Butterfly valve?

1.Concentric butterfly valve

Sealed butterfly valve seat section or the sub-line of plate thickness dirction and stem circling centre is relatively eccentric,makes the valve plate gradully become eccentric from seat sealing surface at the opening process to 20"~25" rotation.and enables less mechanical wear and extrusion,thus improving the sealing performance of the butterfly valve.This sealing design relies on flexible eccentricity from the extrusion between the valve plate and seat,so the single eccentric structure applies only to soft butterfly valve seal.

2.Double eccentric butterly valve

On the basis of the single eccentric butterfly valve,the plate circling centre and the channel centerline is relatively bias that forms cam effect at the opening process of the butterfly valve,and enable valve plate sealing faster eccentricity when plate turns to 8" to 12".valve plate completely separates from sealing surface.This design,greatly lowers the mechnical wear and tear between two sealing surfaces,thus improving the sealing performance.

3.Triple eccentric butterfly valve

On the basis of the single eccentric butterfly valve,the plate circling centre and the channel centerline is relatively bias that forms can effect at the opening process of the butterfly valve,and enable valve plate sealing   complete eccenticity and contact at closure.This unique eccentricity structure fully adopts cam effect and enables complete elimination of mechanical wear and bear between two sealing surfaces and reduce the possiblity of leakage.Turning extrusion sealing into torque sealing by regulating actuator torque value,acheves sealing pressure ratio regulation,thus improves the sealing performance and increase service llifetime of triple eccentric butterfly valve.

(What you need to know about the Butterfly valve?)

(What you need to know about the Butterfly valve?)



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