Inclined Surface Top-mounted Ball Valve

The Inclined Surface Top-mounted Ball Valve, also known as the Wedge-type Top-entry Ball Valve, is a specialized industrial valve featuring an integrated top-mounted design and inclined seat sealing structure. Unlike conventional side-mounted ball valves that often suffer from large opening and closing torque, leakage caused by temperature differences and pipeline installation stress, this valve adopts a unique wedge-shaped inclined sealing surface and preload spring design to ensure tight sealing and smooth operation even in harsh working conditions. Its top-mounted structure allows for in-line maintenance-technicians can access and replace internal components by simply removing the top bonnet, without disassembling the entire valve from the pipeline, greatly reducing downtime and maintenance costs.

Crafted with high-quality materials and strict manufacturing standards, our Inclined Surface Top-mounted Ball Valve meets international norms such as API 6D, ISO 14313, GB/T 19672, and more, ensuring compatibility with global industrial systems. It is widely recognized for its durability, corrosion resistance, and safety, making it a preferred choice for industries worldwide.

1.Reliable Inclined Surface Sealing : The valve seat sealing surfaces are designed as two inclined wedge-shaped surfaces, and a preload spring is installed on the upper part of the ball. Under the action of the spring force, the valve seat and the ball fit closely, achieving leak-proof sealing even under low pressure or fluctuating pressure conditions. This design effectively solves the leakage problem caused by temperature changes and pipeline stress that plagues traditional valves.

2.Anti-Blowout & Upper Sealing Protection : The valve stem is equipped with a shoulder structure at the lower end, which can prevent the valve stem from blowing out when the internal pressure of the valve body is abnormally high. At the same time, under the combined action of the spring and medium force, the valve stem shoulder compresses the gasket to form a reliable upper seal, further enhancing operational safety.

3.Fire-Safe & Anti-Static Design : A fire-resistant metal ring is installed between the ball and the valve seat. In the event of an accidental fire that damages the valve seat, the metal ring will press against the ball to maintain sealing, preventing major accidents. Additionally, the preload spring on the ball can conduct static electricity generated by friction between the ball and the valve seat to the ground, avoiding sparks that may ignite flammable and explosive media.

4.Low Operation Torque & Easy Maintenance : The valve stem stuffing box adopts a sealing method that compresses the packing plane with the valve stem shoulder and bonnet plane, relying on the preload force of the spring and the pressing force of the upper gland to achieve sealing, which significantly reduces the opening and closing torque. The top-mounted structure allows for quick access to internal components-no need to disconnect the pipeline, saving maintenance time and labor costs.

5.Long Service Life : Made of high-strength, corrosion-resistant materials (such as carbon steel, stainless steel, alloy steel), the valve is resistant to wear, corrosion, and high-temperature aging. Its service life is 1-2 times longer than that of ordinary ball valves, reducing the frequency of replacement and overall operating costs.

- Oil & Gas Industry : Used in oil extraction, refining, pipeline transportation, and offshore oil platforms, suitable for high-pressure, flammable, and explosive media such as crude oil and natural gas.

- Chemical Industry : Ideal for chemical processing, handling corrosive media (acid, alkali, solvent), and high-temperature/high-pressure chemical reactions.

- Metallurgy & Aluminum Industry : Applied in alumina powder transportation, smelting processes, and high-temperature fluid control.

- Water Treatment Industry : Used in sewage treatment, drinking water transmission, and seawater desalination systems, resistant to corrosion from seawater and chemical disinfectants.

- Power & Energy Industry : Suitable for steam pipelines, boiler systems, and nuclear power plants, withstanding high-temperature and high-pressure steam and other media.

- Other Industries : Also used in food processing, pharmaceutical, papermaking, and chemical fiber industries, meeting the requirements of hygiene, corrosion resistance, and easy maintenance.

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