Highlight: Three-piece flanged ball valve
Product introduction:
The valve body of a three-piece ball valve is composed of a main valve body and two auxiliary valve bodies, hence the name
"three-piece ball valve". After the ball core and valve stem are installed in the main valve body, the auxiliary valve bodies are
fitted with valve seats, and the main and auxiliary valve bodies are connected as a whole by bolts. Its ball core flow passage
also has a full bore size. Ball valves in pipelines are mainly used for cutting off, distributing, and changing the flow direction
of media. The three-piece ball valve is a widely adopted new-type valve. The main feature of the three-piece ball valve is its
convenient online maintenance. Loosen the screws on the valve body and remove a bolt passing through the main valve
body. Rotating the main valve body allows replacement of the valve seat seal ring. The main valve body can also be
completely removed by unscrewing its bolts for maintenance. Since the auxiliary valve bodies remain on the pipeline, there is
no need to disassemble the entire ball valve, which greatly reduces maintenance workload.
Product technical parameters:
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Nominal Diameter DN (mm)
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50~200
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Nominal Pressure PN (MPa)
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1.6
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Test Pressure (MPa)
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Strength (water)
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2.4
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Enclose (Water)
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1.76
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Main Components
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Body
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WCB/CF8/CF8M
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Valve ball
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Stainless steel/Carbon steel
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Seat
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PTFE
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Packing
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Soft graphite
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Shaft
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2Cr13
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Handle
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Ductile iron
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Working temperature
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≤150℃
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Medium suitable
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Water, oil, steam
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Product features:
1. High reliability: The three-piece ball valve features a compact structure, excellent sealing performance, flexible operation,
and convenient maintenance, thus ensuring extremely high reliability.
2. Low flow resistance: With a large sealing surface between the ball and valve seat and an unobstructed flow passage, it
has low flow resistance and superior flow characteristics.
3. Long service life: The minimal friction between the ball and valve seat extends its service life.
4. Full open/close function: The three-piece ball valve can achieve full open and full close operations, facilitating precise
control of medium flow.
5. Wide applicability: It is suitable for special working conditions such as high temperature, high pressure, and corrosion
resistance, demonstrating excellent adaptability.
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Three-piece flanged ball valve Images
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