API globe valves are essential core fluid control equipment in industries such as petroleum, chemical, power, and natural gas. Their design, manufacturing, and acceptance strictly follow the technical specifications issued by the American Petroleum Institute. API 602 is designed for forged steel globe valves with a nominal diameter of no more than four inches, while API 600 is suitable for cast steel valves with larger diameters. Both have their own emphasis on wall thickness design and end connection types. The pressure temperature rating table of ASME B16.34 specifies the maximum allowable working pressure of different materials at different temperatures, which directly determines the selection boundary of API globe valves under high or ultra-low temperature conditions. The internal flow channel of the globe valve is asymmetric, and the medium undergoes directional flow inside the valve chamber. This design provides a unique self sealing enhancement effect for the valve disc in the closed position. The balanced valve disc structure introduces upstream medium into the back pressure chamber by opening a balance hole, which can significantly reduce the handwheel operating torque of large-diameter and high-pressure API globe valves. Sealing performance is the primary indicator for measuring valve quality. The sealing surface is treated with Stellite cobalt based hard alloy through welding, which has excellent high-temperature red hardness and scratch resistance. The sealing pressure ratio between the valve seat and the valve disc involves Hertz contact stress theory. In engineering, precision ground conical sealing surfaces are used to ensure reliable sealing of the valve under both high and low pressure.

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  2500LB Forged BW High Pressure API600 Globe Valve - Industrial Extreme Pressure Flow Control Valve
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  API 600 Class 300 WCB Cast Steel ANSI Flanged Manual Globe Valve
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  API 600 Class 150LB WCB Cast Steel ANSI Flanged Globe Valve
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  Cast Steel Flanged API Globe Valve - Industrial High Pressure Flow Control Valve
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  600LB 316L Stainless Steel Flanged API Globe Valve

• 2026 09.04
  API globe valve achieves low leakage operation in desulfurization unit of natural gas purification plant
  The new API globe valve adopts a bellows sealing structure instead of traditional packing sealing. When the valve stem moves, the bellows can expand and contract freely, completely blocking the medium from communicating with the atmosphere. At the same time, a double sealing pair is installed at the valve cover to further reduce the risk of leakage.
• 2026 09.04
  API Globe Valves are selected for the seawater fire protection system of offshore platforms
  A newly built offshore oil production platform has completed the commissioning of the seawater fire protection system, and the API globe valves installed in bulk have shown good corrosion resistance in seawater medium, providing reliable guarantee for the platform's fire safety.
• 2026 08.20
  Key selection points and maintenance strategies for API globe valves
  In the design and operation of petrochemical plants, the reasonable selection of API globe valves requires comprehensive consideration of various factors such as medium characteristics, operating frequency, and pipeline pressure drop.
• 2026 08.20
  Manufacturing standards and sealing mechanism of API globe valves
  API globe valve is a type of valve that relies on the mechanical force applied by the valve stem to force the valve disc to tightly fit with the valve seat to achieve shut-off function. Its design and manufacturing mainly follow the specialized standards issued by the American Petroleum Institute.
• 2026 08.05
  Comprehensive Guide to API Globe Valve Structural Types and Industry Applications
  The opening and closing element of an API globe valve is a plug-shaped disc with a flat or conical sealing surface; the disc moves linearly along the centerline of the fluid flow.
• 2026 08.05
  Detailed Explanation of API Globe Valve Standards and Technical Specifications
  API globe valves are industrial valves manufactured in accordance with American Petroleum Institute (API) standards and are widely used in sectors such as petrochemicals, natural gas, power generation, and metallurgy.