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Professional On Off Ball Valve Manufacturer

  • Low fluid resistance
  • Quick and easy switching
  • Simple structure and small size
  • Sealing surface is not easily scratched
  • Long service life
  • Easy maintenance
  • Wide range of applications

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    BCST your Expert On Off Ball Valve Supplier in China

    BCST Ball valve is a kind of valve whose opening and closing parts are spheres and rotate around the ball valve axis. This type of valve is characterized by the operation of 90 degrees of rotation and a very small turning torque to close tightly, so it is most suitable for use as a switch and cut-off valve.

    BCST your One-Stop On Off Ball Valve Solution in China

    BCST Ball valves also have the characteristics of anti-dust and anti-static, adjustable flow, easy installation, all-round anti-leakage design and so on. The structural form of ball valve is divided into floating ball type and fixed ball type, and the connection form is flange connection, welding connection and threaded connection. According to the working principle can be divided into floating ball valves, fixed ball valves, lifting lever ball valves, etc., according to the channel position can be divided into straight-through, three-way and right-angle type.

    one piece onoff ball valve

    One Piece Onoff Ball Valve

    Two Piece Onoff Ball Valve

    Three piece onoff ball valve

    Three Piece Onoff Ball Valve

    Pneumatic On off Ball Valve

    Pneumatic On Off Ball Valve

    PTFE Liner on off Ball Valve

    PTFE Liner On Off Ball Valve

    Manual Onoff Ball Valve

    Manual Onoff Ball Valve

    High Pressure on off ball-valve

    High Pressure On Off Ball Valve

    Electric On off Ball Valve

    Electric On off Ball Valve

    Stainless Steel Onoff Ball Valve

    BCST Your Best Supplier for Onoff Ball Valve

    BCST is a professional manufacturer with 20 years of experience in globe valves, control valves, butterfly valves, ball valves, gate valves, and valve accessories, similar to selectors and positioners. BCST is a registered global brand, substantially concentrated on instrumentation and control valves.

    We supply a one-stop result for inflow dimension and control result. BCST has cooperated with transnational brands like Rotork, Siemens, ABB, and China National Petroleum Corporation. Our products are exported to over 100 countries worldwide.

    BCST has enough raw materials in stock and professional technical staff that can quickly realize your unique requirements. In addition, BCST has over 20 times of product history and ten times of export experience. BCST gives you the best result for on-off ball valves.

    Welcome to send us an inquiry.

    ball valves

    BCST Onoff Ball Valve Quality Control

    • Technical software caculation
    • Technical team meeting
    • CAD drawing confirmation  


    • Installation
    • Calibration
    • Chemical Analysis
    • Mechanical Propery
    • dimension Checks
    • Visual Checks
    • Non-destruction Examination

    Hydrostatic Test

    • Shell test
    • Sealing test
    • Leakage test
    • Air test
    • Function test
    • CNC machining
    • Visual checks
    • Dimensional checks
    • Liquid penetration test

    Outlook Treatment

    • Surface Polish
    • Painting
    • Visual inspection
    • Thickness checks
    • Visual checks
    • Liquid penetration
    • Test
    • Hardness test
    • Lapping
    • Dimensional checks


    • Marking
    • Exported wooden box

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    Why Purchase On Off Ball Valve From BCST

    Onoff Ball Valve -FAQ


    The on-off ball valve evolved from the plug valve. It has the same lifting action of rotating 90 degrees, the difference is that the cock body is a sphere with a circular hole or channel through its axis. All of the spherical surfaces should be at the inlet. This requires the ratio of the spherical surface to the channel opening and outlet, thereby truncating the flow.

    It can be closed tightly with only a 90-degree rotation operation and a small torque. It is generally believed that ball valves are suitable for direct opening and closing, but recent developments have designed ball valves so that they can be used for throttling and flow control.

    Normally closed or open valves are designed for open or closed remote control of fluid flow. These types of valves are operated by a piston, spring-biased to an open or closed position. The differential pressure provides the force to the spring causing the valve to move and establishing a given flow. One of the top manufacturers, BCST offers a quantity of material modification of the permitted level of instantaneous consumption.

    What is on the off-ball valve?

    The on-off-ball valves are “stop valves” used to help prevent the flow of materials past the piping system. They are called on off-ball valves due to their structure and function; Each valve has a small sphere or ball inside as its characteristic. The ball has a hole in its center called a pitch. And the position of this hole indicates whether a ball valve is open or closed.

    On off-ball, valves are simple in design and easy to turn on and off quickly. Ball valves are durable and rarely freeze. Furthermore, they offer reliable service and can be used in multiple industries and applications. They are primarily used in oil and gas applications, marine and pharmaceutical applications, and more.

    Ball valves are normally controlled by a lever. This lever can rotate 90 degrees, when it is perpendicular to the pipe, the ball valve opens. The valve passage aligns with the pipe and allows materials to flow. Rotate the lever again to make it parallel to the pipe to stop the flow. The passage of the valve becomes perpendicular to the pipe and stops any flow.

    What is the working principle of the on-off ball valve?

    The working principle of the on-off-ball valve is to make the valve unblocked or blocked by rotating the valve. The ball valve switch is popular in many industries because it is light, small in size, can be made to have a large diameter, offers reliable sealing, is simple to assemble, and is easy to maintain. The sealing surface and spherical surface are frequently in a closed state to prevent erosive action from the medium.

    The on-off Ball valve and plug, valve are the same types of valves, only its closing part is a sphere, and the sphere rotates around the center line of the valve body to achieve opening and closing.

    They are mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. The on-off ball valve is a new type of valve that has been widely used in recent years. The operating mechanism is made by means of a drilled ball that rotates between the elastic seats, in order to start, stop or regulate the circulation of a fluid.

    It is lined up with the valve intake and outlet while the valve actuator is in the open position. Ball valves have good tightness, fast opening and closing, and easy automation.

    What are the Advantages of the on-off-ball valve?

    It has the following advantages:

    1. Simple structure, small size, and lightweight.
    2. It is tight and reliable.
    3. Easy to operate, quick to open and close, only need to rotate 90° from fully open to fully closed, which is convenient for long-distance control.
    4. When fully open or fully closed, the sealing surfaces of the ball and the valve seat are isolated from the medium.
    5. And when the medium passes through, the valve sealing surface will not be eroded.

    What are the components of an off-ball valve?


    The handle is the component of the on-off-ball valve where the valve operator applies force to open or close the valve. The handle must be strong enough to withstand the torque required to open the lock ball valve.

    Valve housing/valve body

    The valve body is the main component of the on-off-ball valve that serves as a pressure barrier. This helps protect the internal components of the lockable ball valve from external damage and holds them securely in position. The valve body is very important because it needs great strength to be able to withstand high pressure.


    The stem is the part of the on-off ball valve that helps transmit torque applied by the valve operator at the handle to the valve ball. The stem connects the ball and handles in a lock ball valve.


    The ball is the component in charge of opening or closing the closing ball valve. The ball has a hole in its central part through which the fluid passes. The ball must be made of a material that improves fluid compatibility.


    Seats refer to the discs used between the valve body and ball in a lockable ball valve, intended to provide a seal between the body and the ball and also to improve support of the ball against fluid pressure.


    The packing is a component that forms a pressure seal on the valve stem to ensure that fluid does not leak through the on-off ball valve.


    The on-off-ball valve has a simple structure. You can configure smaller nominal diameter, lightweight, low material consumption, small installation size, small driving torque, simple operation, easy to realize quick opening and closing, and easy operation within a certain nominal pitch range and maintenance.

    If you have any questions about items like off-ball valves or any other products, you may get in touch with the BCST firm. You may contact us by email at [email protected] or by phone at +86-15052699328.

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