Valvesonly Europe are leading Plug Valve Suppliersin
Germany. A plug valve is a type of valve that uses a cylindrical or conically
tapered plug to control the flow of a fluid through a pipe. By rotating the
plug within the valve body, the flow can be either allowed to pass through or
be blocked. The plug has one or more hollow passageways, typically aligned in
such a way that fluid can flow through when the valve is in the open position
and blocked when in the closed position. Plug valves are known for their simple
design, reliable operation, and quick actuation, making them suitable for
applications which requires fast and continuous operation. They are commonly
used in industries such as oil and gas, chemical processing, and water
treatment due to their durability and ability to handle high-pressure and
high-temperature conditions.
How is a plug valve used?
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By rotating the plug
inside the valve body, the flow of fluid can be started or stopped. When the
plug's hollow passageway aligns with the inlet and outlet ports, the fluid
flows through the valve. Rotating the plug by 90 degrees usually closes the
valve, stopping the flow.
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Although it is less
common, plug valves can be used to regulate the flow to some extent by
partially opening or closing the valve. However, they are mainly designed for
full on/off control rather than changing the precise flow.
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In multi-port plug
valves, the design allows for directing the flow to different outputs. This is
useful in complex piping systems where the flow needs to be routed to different
process streams.
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Plug valves are often
used in applications where complete isolation of the fluid is necessary for
safety or maintenance purposes. Their tight seal when closed ensures minimal
leakage, making them suitable for handling hazardous or high-pressure fluids.
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The quarter-turn action
of a plug valve allows for rapid opening and closing, making it ideal for
applications requiring quick response times.
What is the difference between Ball Valves and Plug Valves?
The main difference between
plug valves and ball valves is their design, operation, and basic applications:
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Design: Plug valves
uses a cylindrical or conically tapered plug with a hollow passage through it.
The plug rotates within the valve body to control flow. The flow path is
typically straight through the plug when the valve is open. Ball Valves on the
other hand use a spherical ball with a hole through its center. The ball
rotates within the valve body to control flow. When the hole aligns with the
inlet and outlet ports, fluid flows through; rotating the ball by 90 degrees
blocks the flow.
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Operation: Plug valve
are operated by rotating the plug 90 degrees. They are known for their simple
and robust design and can be used for quick shutoff applications. Ball Valves
are also operated by rotating the ball 90 degrees. Ball valves provide excellent
sealing and are widely used for their ability to open and close quickly and
reliably.
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Applications: Plug
Valves are suitable for applications requiring frequent operation, such as in
chemical processing, oil and gas, and water treatment. They are versatile and
can handle fluids with suspended solids. Ball Valves are commonly used in applications
where a tight seal and quick operation are essential, such as in gas systems,
pipelines, and industrial processes. They are less suitable for fluids with
high particulate matter compared to plug valves.
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Maintenance: Plug
Valves generally easier to maintain and can handle more abrasive and dirty
fluids. However, they may require more frequent lubrication. Ball Valves
usually require less maintenance but might be more susceptible to damage from
particulate matter in the fluid.
Types of Plug Valves-
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Lubricated Plug valve.
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Non Lubricated Plug
Valve.
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Jacketed Plug Valve
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Twin Seal Plug valve
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Lift Plug Valve
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Orbit Plug Valve
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Eccentric Plug Valve.
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3 way plug valve
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Connected lift plug valve
As Plug Valve Suppliers, we manufacture valves
for these industries-
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Oil and Gas
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Chemical Processing
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Water and Wastewater
Treatment
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Pulp and Paper
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Power Generation
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Mining and Minerals
Processing
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Marine and Shipbuilding
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Aerospace
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Automotive
Manufacturing
Description:
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Body material: Cast
Carbon steel (WCC, WCB, WC6), Stainless Steel [SS316, SS304, SS316L, SS904L,
CF8, CF8M, F31L, F91], DUPLEX STEEL and Super duplex Steel (F51, F53, F55),
Cast iron, Ductile Iron.
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Class: 150-2500; PN 10
– PN 450
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Size: 1/2”- 48”.
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Operations: Lever,
electric and pneumatic actuated, gear
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Ends: Flanged, butt
weld, socket weld, threaded