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Kulové kohouty

  • 3″-150LB-RF Heavy Pattern 304SS Floating Ball Valve
    3″-150LB-RF Heavy Pattern 304SS Floating Ball Valve
    Product Name Stainless Steel Flanged Floating Ball Valve
    Nominal Size 3″ (DN80)
    Pressure Rating Class 150LB
    Body Material 304 Stainless Steel (ASTM A351 CF8 / SS304)
    End Connection Flanged
    Construction Floating ball, two-piece / side-entry
    Bore Type Full bore (full port)
    Seat Seal Type Soft seated (PTFE / RPTFE / PPL)
    Fire Safe Design Optional, to API 607
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  • V-Port Control Ball Valve Ready For Actuator
    V-Port Control Ball Valve Ready For Actuator
    Nominal Diameter (DN) DN50 ~ DN1200 (NPS 2″ ~ 48″)
    Nominal Pressure (PN) PN16 ~ PN420 (Class 150 ~ Class 2500)
    ASME Class 150, 300, 600, 900, 1500, 2500
    Connection Type Flanged (RF/RTJ), Butt weld
    Ball Rotation 0° ~ 90° (adjustable)
    Flow Characteristic Approx. equal percentage / linear
    Rangeability 250:1 ~ 300:1
    Seat Leakage (Soft) Zero / Class VI
    Seat Leakage (Metal) Class IV ~ V (optional Class VI for metal)
    Operating Torque 30% ~ 50% lower than floating ball design
    View details

A ball valve is a type of quarter-turn valve that controls flow using a hollow, perforated, and pivoting ball inside the valve body. When the ball’s hole is aligned with the pipeline, fluid flows freely; when rotated 90 degrees, the flow is completely blocked. This simple mechanism makes ball valves highly reliable for shutoff and control applications. Ball valves are known for their tight sealing performance, durability, and ease of operation. They can handle high pressure and temperature conditions, and are suitable for gas, liquid, or even corrosive media, depending on the materials used. With minimal pressure drop and fast on-off control, ball valves are widely used in industries like oil and gas, water treatment, chemical processing, and general plumbing. They come in various types such as two-way, three-way, floating, and trunnion-mounted, and can be operated manually, pneumatically, or electrically.

Why Are Ball Valves Preferred In Industrial Applications?

Ball valves are favored in industrial systems due to their quick shutoff capability, tight sealing, and low maintenance design. Their quarter-turn mechanism allows for fast operation, reducing downtime in emergency situations. They offer a secure shutoff even after long periods of disuse, thanks to the ball's self-cleaning action as it rotates. The full-bore design of many ball valves allows for unobstructed flow, which minimizes pressure loss and makes them ideal for high-flow applications. Additionally, ball valves are available in a wide range of materials including stainless steel, brass, and PVC, allowing them to be used in different pressure, temperature, and corrosive environments. They are also easy to automate, making them ideal for systems that require remote control. With minimal moving parts, ball valves are more durable and less likely to leak or wear out, leading to reduced maintenance and lower operating costs over time.

Ball Valves FAQ

  • 1.What’s the main use of a ball valve?

    Quick shutoff and flow control.

  • 2.Is a ball valve full port or reduced port?

    It can be either, depending on the design.

  • 3.Can ball valves be used for gas?

    Yes, if the material and rating are appropriate.

  • 4.Do ball valves leak easily?

    No, they offer tight sealing when properly maintained.

  • 5.Are ball valves easy to automate?

    Yes, they support pneumatic and electric actuators.

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