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KATA API6D BALL VALVE HIGH QUALITY 2"~56"

KATA API6D BALL VALVE HIGH QUALITY 2"~56"

Brand Name : KATA
Certification : CE, ISO, API6D
Place of Origin : SHANGHAI,CHINA
MOQ : 1 piece
Supply Ability : 5000pieces per month
Delivery Time : 5~35days
Packaging Details : by wooden case
Pressure rating : Class 150~ Class 2500
Material : WCB, LCB, CF8, CF8M, CF3, CF3M, A105, LF2, F403, F316, F304L, F316L
Design & Manufacturing Standard : API608, API6D, BS5351, ASME B16.34
Face to Face : ASME B16.10, API6D
End connection : ASME B16.5, ASME B16.47, ASME 16.25
Test and Inspection : ISO5208, API6D
Operation Method : Manual, Worm Gear, Electric Actuator, Pneumatic Actuator
Size : 2"~56"
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A ball valve is a form of quarter-turn valve which uses a hollow, perforated and pivoting ball (called a "floating ball") to control flow through it. It is open when the ball's hole is in line with the flow and closed when it is pivoted 90-degrees by the valve handle.[1] The handle lies flat in alignment with the flow when open, and is perpendicular to it when closed, making for easy visual confirmation of the valve's status.[2]

Ball valves are durable, performing well after many cycles, and reliable, closing securely even after long periods of disuse. These qualities make them an excellent choice for shutoff applications, where they are often preferred to gates and globe valves, but they lack their fine control in throttling applications.

The ball valve's ease of operation, repair, and versatility lend it to extensive industrial use, supporting pressures up to 1000 bar and temperatures up to 752 °F (500 °C), depending on design and materials used. Sizes typically range from 0.2 to 48 inches (0.5 cm to 121 cm). Valve bodies are made of metal, plastic, or metal with a ceramic; floating balls are often chrome plated for durability. One disadvantage of a ball valve is that they trap water in the center cavity while in the closed position. In the event of a freeze, the sides can crack due to expansion of ice forming. Some means of insulation or heat tape in this situation will usually prevent damage.Another option for cold climates is the "freeze tolerant ball valve". This style of ball valve incorporates a freeze plug in the side so in the event of a freeze up, the freeze plug ruptures, (acts as a sacrificial disk), thus making for an easy repair. Now instead of replacing the whole valve, just screw in a new freeze plug. This is commonly called freeze plug technology.

A ball valve should not be confused with a "ball-check valve", a type of check valve that uses a solid ball to prevent undesired backflow.

Other types of quarter-turn valves include the butterfly valve and plug valve and freeze proof ball valve.



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