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Eccentric Butterfly Valve

The design of Lipin eccentric butterfly valve includes single eccentric butterfly valve, double eccentric butterfly valve, and triple eccentric butterfly valve. The structural feature of a single eccentric butterfly valve is that the stem axis deviates from the center of the butterfly plate, so that the upper and lower centers of the butterfly plate no longer become the rotation axis, dispersing and reducing excessive compression at the upper and lower ends of the butterfly plate. The structural feature of a double eccentric butterfly valve is that the valve stem axis deviates from both the center of the butterfly plate and the center of the body. A three eccentric butterfly valve is one in which the axis of the valve stem deviates from both the center of the disc and the center of the body, and the axis of the valve seat rotation is at a certain angle to the axis of the valve body channel.

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Design Advantages

Off-Center Pivot: Improved sealing and minimized wear.

Varied Materials: Ranging from durable carbon steel to anti-corrosive stainless varieties.

Space-Efficient: Streamlined for tight installations.

Swift Rotation: Rapid modulation of flow.

Enhanced Durability: Reduced wear between disc and seat.

Robust Stem Design: Ensures reliable actuation with minimal torque.

Engineered Bearings: Designed for low friction and peak performance.

Application Versatility: Suitable for diverse industrial settings.

Eco-Friendly: Lower energy consumption during operation.

Technical Parameters

Size	DN15-DN1200, 1/2''-48''
Pressure	PN6-PN100, Class125-Class1500
Temperature	-196°C to 600°C
Connection type	Flanged, Wafer, Welded
Operation mode	Handwheel, Pneumatic, Electric, Hydraulic, Gear Operated

Materials

Valve Body	Forged	A105, LF2, F5, F9, F11, F22, F304, F316, F347, F904, F51, F53, F310, N08020, Inconel625, etc.
	Cast	WCB, LCB, C5, C12, WC6, WC9, CF8, CF8M, CF8C, 4A, 5A, CN7M, C95800, CW6MC, etc.
Stem		F6a, 17-4PH, XM-19, F304, F316, F347, F904, F51, F53, F310, Monel400, Monel500, N08020, Inconel625, Incoloy825, etc.
Disc		A105, LF2, F5, F9, F11, F22, F304, F316, F347, F904, F51, F53, F310, N08020, Inconel625, WCB, LCB, C5, C12, WC6, WC9, CF8, CF8M, CF8C, 4A, 5A, CN7M, C95800, CW6MC, etc.
Seat		EPDM, NBR, VITON(X7), HYPALON(X2), etc.

Design Standards

Body	API 609, BS EN 593, ISO 5752, MSS SP-67, ASME B16.34, API 6D, GOST 5762, JIS F7480, etc.
Flange	ANSI B16.5, EN 1092-1, JIS B2220, GB/T 9113, ASME B16.47, GOST 12820, DIN 2501, etc.
Connection	ANSI B16.10, ISO 5211, JIS B2212, ASME B16.25, GOST 33259, DIN 3202, etc.
Test Standards	API 598, EN 12266, ISO 5208, MSS SP-61, ASME B16.104, GOST 9544-2015, JIS B2003, DIN 3230, etc.

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Select Application Scenarios

Before choosing different types of Butterfly Valves, please determine their main uses. Whether it is water treatment, petroleum or other industries, different application scenarios will directly affect valve selection.
Choose The Right Valve Type

Butterfly Valves come in many different types. Depending on factors such as flow control and pressure, choose the one that will perform best in your system.
Select Materials

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