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U type butterfly valve

Technical Data
Size DN40-DN1200mm
Pressure:PN1.0-1.6MPa
Design:ISO 5752 / BS 5155 / API 609
Body: Cast iron, Ductile Iron
Seat: EPDM, NBR
Stem: Stainless Steel, Steel
Disc: Ductile Iron with Nickel Coating,Ductile Iron with Nylon Coating, Stainless Steel 304/316, Al-Bronze
Flange Connection:DIN,BS,ISO,ANSI,AS,JIS

Product Features
U type flanged body style fit between FF or RF flanges
PTFE bushing ensure the maximum shaft support and centralized alignment
360¡ãpolished disc assures positive on-off
Hard-Backed Cartridge seat
One piece shaft, pinned or splined are all available
Universal ISO 5211 mounting pad
Suitable working mediums: fresh water, sewage,air,vapor,acids,alkalis,salts, etc.

A "U type" butterfly valve typically refers to a type of butterfly valve that has a unique disc shape resembling the letter "U" when viewed from the side. Butterfly valves are commonly used in various industries to control the flow of fluids (liquids or gases) through pipes. The "U type" design has specific advantages and applications. Here's an overview of the U type butterfly valve:

Design and Characteristics:

The U type butterfly valve is characterized by a disc that has a semi-circular or U-shaped profile when viewed in cross-section. This disc design offers some distinct features:

Unobstructed Flow Path: The U shape of the disc ensures minimal obstruction in the flow path when the valve is fully open. This design is advantageous for applications that require high flow rates and reduced pressure drop.

Reduced Turbulence: The streamlined shape of the disc minimizes turbulence and pressure fluctuations in the flow, contributing to efficient flow control and reduced wear on the valve and pipe surfaces.

Throttling Control: While butterfly valves are often used for on-off control, U type butterfly valves can also provide effective throttling control when partially open. The smooth U-shaped disc profile allows for gradual adjustments to the flow rate.

Lower Torque Requirement: The U-shaped disc design can reduce the torque required to open and close the valve compared to other disc shapes, which can be advantageous for manual operation or when using smaller actuators.

Applications:

U type butterfly valves find applications in various industries, particularly where the design advantages mentioned above are beneficial:

Water and Wastewater Treatment: U type butterfly valves are used in water treatment plants, sewage systems, and wastewater treatment facilities due to their efficient flow control and reduced pressure drop.

HVAC Systems: In heating, ventilation, and air conditioning (HVAC) systems, U type butterfly valves can be used to regulate the flow of air and fluids.

Chemical Processing: The smooth flow path and throttling capabilities of U type butterfly valves make them suitable for controlling the flow of chemicals in industrial processes.

Power Generation: U type butterfly valves can be used in power plants for controlling the flow of water, steam, or gases.

Food and Beverage Industry: These valves can be utilized in food and beverage processing for fluid control while minimizing turbulence that could affect product quality.

Pulp and Paper Industry: U type butterfly valves are suitable for applications involving pulp, paper stock, and various liquids used in the paper manufacturing process.

Actuation and Control:

U type butterfly valves can be operated manually using a handle or lever, or they can be automated using pneumatic, electric, or hydraulic actuators for remote control and integration into automated systems.

In summary, the U type butterfly valve offers advantages in terms of unobstructed flow, reduced turbulence, and effective throttling control. Its design makes it well-suited for applications where efficient flow control and minimal pressure drop are important considerations. When selecting a U type butterfly valve, it's essential to consider factors such as the specific application requirements, pressure and temperature conditions, and compatibility with the fluid being controlled.