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Thread Ball Valve

Kizi provides high-quality Thread Ball Valves, designed for precise fluid control in small-diameter pipelines across industries such as petrochemical, water treatment, power generation, chemical processing, and pharmaceuticals. These valves operate by rotating a spherical ball 90 degrees, allowing or stopping flow efficiently, making them ideal for applications that require fast open-and-close actions. The threaded connection (NPT, BSPT, RC, or G) ensures quick and reliable installation, reducing assembly time and maintenance costs for end-users.

Thread Ball Valves feature compact, lightweight designs, making them easy to handle and install even in tight spaces. The valve seats are often made from high-performance plastics, delivering excellent sealing performance, which maintains tightness even under vacuum or high-pressure conditions. This ensures minimal leakage and consistent operational reliability in demanding systems. Additionally, their forged structure enhances strength and durability, allowing safe operation in high-pressure pipelines while providing long-term service life with low maintenance requirements.

Available in multiple configurations, including one-piece, two-piece, and three-piece designs, as well as stainless steel options, Thread Ball Valves offer versatility for both standard and customized applications. Each valve undergoes stringent inspection and testing according to API598 standards, ensuring dimensional accuracy, pressure resistance, and sealing reliability. Kizi Valve’s Thread Ball Valves combine efficiency, durability, and ease of use, providing an optimal solution for industries that prioritize safety, rapid operation, and reliable performance in small-diameter fluid control systems.


Suzhou Kizi Valve Co., Ltd. was established in 2008. The company mainly produces and sells various types of high-end and medium-end valves in China. Headquartered in Changshu, Suzhou, China, it is a fluid control engineering system company specializing in planning, production and inspection.

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