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What is a V-port Valve?

May 14,2022

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Butterfly Valves

MstnLand provides high performance butterfly valve products, including Hard seal and soft seal butterfly valve, triple offset/double offset/centric butterfly valve, Lug type /Wafer type/Hoop type/Flanged ended butterfly valve and three-way butterfly valve. Especially our Bi-directional seal butterfly valve can be tested at 1.1 times design pressure with zero leakage at both directions.


Butterfly valve is a kind of valve that takes a disc as closing part (butterfly board) which rotates around the valve axis to achieve opening and closing. The valve is mainly used for cut-off and throttling on pipeline. A plate or disc is positioned in the center of the pipe. The disc has a rod passing through it that is connected to an actuator outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. The flow of medium may be controlled by changing deflection angle of butterfly board. 



Types of Butterfly Valves Based on Structure


According to the structural form, butterfly valve can be divided into Triple offset butterfly valve, high-performance butterfly valve, metal seated butterfly valve and double offset butterfly valve. The structural difference of butterfly mainly lies in whether the stem axis, disc center, body center is in the same position or eccentric position.

Types of Butterfly Valves Based on Material


The temperature, pressure and type of medium affect the valve body and interior material of the butterfly valve. Body materials of MstnLand butterfly valves include, but are not limited to stainless steel, wcb, carbon steel, forged and cryogenic. 


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