Rotary Motion Valve Butterfly Valve

Product Details
Customization: Available
Media: Oil
Driving Mode: Manual
Manufacturer/Factory, Trading Company

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ISO 9000, QC 080000
  • Rotary Motion Valve Butterfly Valve
  • Rotary Motion Valve Butterfly Valve
  • Rotary Motion Valve Butterfly Valve
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Basic Info.

Model NO.
Butt-clamped
Structure
Single-Eccentric Sealing
Seal Form
Force Sealed
Valve Stem
Normal
Work Pressure
High Pressure (10.0mpa< Pn <80.0mpa)
Working Temperature
High Temperature (T>450°C)
Material of Seal Surface
Metal Hard Sealed
Valve Body
Forge Welding
Standard
CB/T,GB/T,JIS ,DIN
Application
Marine
Transport Package
Wooden Case
Specification
CB/T, GB/T
Trademark
DEYUAN MARINE
Origin
China
Production Capacity
1000PCS Per Month

Product Description

Rotary Motion Valve Butterfly Valve
Rotary Motion Valve Butterfly ValveRotary Motion Valve Butterfly Valve

A Butterfly valve is a quarter-turn rotational motion valve, that is used to stop, regulate, and start flow.Butterfly valves are easy and fast to open. A 90° rotation of the handle provides a complete closure or opening of the valve. Large Butterfly valves are usually equipped with a so-called gearbox, where the handwheel by gears is connected to the stem. This simplifies the operation of the valve, but at the expense of speed.

Types of Butterfly Valves:

Butterfly valves has a short circular body, a round disc, metal-to-metal or soft seats, top and bottom shaft bearings, and a stuffing box. The construction of a Butterfly valve body varies. A commonly used design is the wafer type that fits between two flanges. Another type, the lug wafer design, is held in place between two flanges by bolts that join the two flanges and pass through holes in the valve's outer casing. Butterfly valves are even available with flanged, threaded and butt welding ends, but they are not often applied.

Butterfly valves possess many advantages over gate, globe, plug, and ball valves, especially for large valve applications. Savings in weight, space, and cost are the most obvious advantages. The maintenance costs are usually low because there are a minimal number of moving parts and there are no pockets to trap fluids.

Butterfly valves are especially well-suited for the handling of large flows of liquids or gases atrelatively low pressures and for the handling of slurries or liquids with large amounts ofsuspended solids.

Butterfly valve Seat Construction:

Stoppage of flow is accomplished by the valve disk sealing against a seat that is on the inside diameter periphery of the valve body. Many Butterfly valves have an elastomeric seat against which the disk seals. Other Butterfly valves have a seal ring arrangement that uses a clamp-ring and backing-ring on a serrated edged rubber ring. This design prevents extrusion of the O-rings.

In early designs, a metal disk was used to seal against a metal seat. This arrangement did not provide a leak-tight closure, but did provide sufficient closure in some applications (i.e., water distribution lines).

Butterfly valve Body Construction:

Butterfly valve body construction varies. The most economical is the wafer type that fits between two pipeline flanges. Another type, the lug wafer design, is held in place between two pipe flanges by bolts that join the two flanges and pass through holes in the valve's outer casing. Butterfly valves are available with conventional flanged ends for bolting to pipe flanges, and in a threaded end construction.

If you are interested in our products or have any questions, please feel free to contact us for more details.
Deyuan Marine has been waiting for your contact.


Rotary Motion Valve Butterfly Valve
Technical Parameters of Butt-clamped Butterfly Valve
Rotary Motion Valve Butterfly Valve

Rotary Motion Valve Butterfly Valve
Rotary Motion Valve Butterfly Valve

Rotary Motion Valve Butterfly Valve
Rotary Motion Valve Butterfly Valve

Rotary Motion Valve Butterfly Valve

 

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