A globe valve is a type of linear motion valve used to regulate or stop the flow of a fluid within a pipeline. It belongs to the family of quarter-turn valves, along with ball valves and plug valves, but it operates with a linear motion perpendicular to the direction of the flow. The name “globe valve” is derived from the shape of the valve body, which is globular or globelike.
Globe valves are versatile and find applications in various industries, including oil and gas, petrochemical, power generation, water treatment, and more. They are commonly used in systems that require throttling and precise flow control. The linear motion of the valve makes it suitable for applications where fine control is necessary, as the position of the disc can be adjusted to regulate the flow rate.
Specification:
Key Features:
Body: The main outer shell of the valve that houses the internal components. Globe valve bodies come in various shapes and sizes, but they typically have a spherical shape.
Bonnet: The top portion of the valve body that is detachable for accessing internal components. It often includes a stem and actuator mechanism.
Disc or Plug: A movable element that can be raised or lowered to control the flow of fluid. When the disc is lifted, the valve is open, allowing fluid to pass through. When it is lowered, the valve is closed, blocking the flow.
Seat: The sealing surface against which the disc or plug makes contact when the valve is closed. It forms a tight seal to prevent leakage.
Stem: A rod that connects the actuator (such as a handwheel or motor) to the disc or plug. When the actuator is turned, it raises or lowers the stem, moving the disc to control the flow.
Actuator: The mechanism responsible for moving the stem and, consequently, the disc or plug. Actuators can be manual (handwheels or levers), electric, pneumatic, or hydraulic, depending on the application and control requirements.
Packing: A material, such as packing rings or seals, placed around the stem to prevent leakage along the stem.
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Remember to consult with your engineering or procurement team to ensure that the selected valve meets the specific requirements of your system. Additionally, consider factors like maintenance requirements, ease of operation, and any industry standards or certifications that may be relevant to your application.
