Butterfly Valve – HONG KONG SUPERIOR

Butterfly Valve

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PRODUCT DESCRIPTION

The handle butterfly valve has a butterfly disc installed in the diameter direction of the pipeline. The disc rotates around its axis within the cylindrical passage of the valve body, with a rotation angle ranging from 0° to 90°. When the disc reaches 90°, the valve is fully open. This type of valve is typically installed horizontally.

The handle butterfly valve has a simple structure, compact size, and lightweight design, consisting of only a few parts. It can be quickly opened and closed by rotating 90°, making it easy to operate. Additionally, the valve offers good fluid control characteristics. When the valve is fully open, the thickness of the butterfly disc creates minimal resistance to the fluid passing through the valve body, resulting in a very low pressure drop and excellent flow control performance.

There are two types of sealing options for butterfly valves: elastic sealing and metal sealing. In elastic-sealed valves, the sealing ring can be embedded in the valve body or attached to the outer edge of the butterfly disc.

Metal-sealed valves generally have a longer lifespan than elastic-sealed valves but are more challenging to achieve a perfect seal. Metal seals can handle higher operating temperatures, while elastic seals have temperature limitations.

When using the butterfly valve for flow control, the key factor is the correct selection of the valve size and type. The structural principle of the butterfly valve makes it particularly suitable for large-diameter valves. Butterfly valves are widely used in various industries, including petroleum, natural gas, chemicals, and water treatment, as well as in cooling water systems for thermal power plants.

Common types of butterfly valves include the lug-type butterfly valve and the flanged butterfly valve. A lug-type butterfly valve is connected between two pipeline flanges using double-ended bolts, while a flanged butterfly valve has flanges at both ends of the valve body, which are bolted to the pipeline flanges.

MAIN PARAMETER

Nominal Diameter

Face-to-Face Length

Handle Length

Overall Dimensions (Reference)

DN	Inches	L	L₁	H	H₁	B
50	2	45	230	220	90	88
65	2.5	46	230	230	90	88
80	3	48	230	230	90	88
100	4	55	250	300	100	108
125	5	59	260	350	110	114

COMPANY PROFILE

Ocean Hydraulic Group was established in 2001 and specializes in the design and manufacturing of automation equipment. The company customizes various industrial products, including high-precision, large-diameter hydraulic cylinders, hydraulic systems (Hydraulic power units), mud gun and tapping drill machines, slag skimmer machines, ladle tilting devices, extrusion machines, and automotive modification components, as well as steel structural components and riveted and welded components. The factory covers an area of over 20,000 square meters. Located just 500 kilometers from Beijing and Tianjin ports and only 15 minutes from Taiyuan International Airport, Ocean Hydraulic has provided more than 10,000 sets of specialized equipment worldwide. Feel free to contact us at any time.