Top-Entry Ball Valve is a type of valve that controls fluid flow by rotating the ball. The ball features an internal bore-when the valve is open, fluid passes through the bore; when closed, the ball blocks the flow, achieving complete shutoff.
Key advantages include:
Small rotation angle for quick operation
Excellent sealing performance, preventing fluid leakage
Long service life
Top-entry design with a flange-connected ball and stem, enabling easy disassembly and maintenance
Specification
Design Standard: API6D
Size Range: 2"-60" (DN50-DN1500)
Pressure Rating: ASME CLASS 150-2500 (PN16-PN420)
Body Material: Carbon steel, Stainless steel, Alloy steel, Duplex stainless steel, exotic alloy, etc.
End Connection: FLNG, BW, etc.
Operation: Lever, Gear operator, Pneumatic, Electric, Hydraulic, etc.
Temperature Range: -46 to 200℃
Fire Safe Design Certificate: Yes, API 6FA and API 607
Applications: suitable for large size or high pressure pipeline, in-line maintenance service, etc.
Applications of Top-Entry Ball Valves
Top-entry ball valves are widely used in industries such as oil & gas, petrochemical, metallurgy, and power generation. Their primary applications include:
Pipeline Control
By rotating the ball, top-entry ball valves regulate flow in pipelines, achieving precise pipeline control.
Storage Control
In tanks or vessels storing liquids or gases, these valves manage fluid intake and discharge for effective storage control.
Heating System Control
They regulate flow in heating systems, enabling efficient temperature and process control.
Hydraulic System Control
Used to control fluid flow in hydraulic systems, ensuring optimal system performance.
