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Zhongshan Ketai Valve Technology Co., Ltd

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Core characteristics and application of three piece stainless steel threaded ball valve
Date: 2025-10-24Read: 18
The three piece stainless steel threaded ball valve consists of a valve body, a stainless steel ball, a valve stem, and a seal. It is connected to the pipeline through threads, and rotating the valve stem can control the rotation of the ball, achieving the on/off or flow regulation of the medium. Its structural design balances installation convenience and stability, and is widely used in industrial, civil and other pipeline systems. The following provides a detailed explanation of its core performance characteristics and typical application scenarios:
1、 Core performance characteristics of three piece stainless steel threaded ball valve
1The material is corrosion-resistant and the structure is stable
The valve body and ball body are mostly made of 304 or 316 stainless steel, which can withstand corrosion from media such as water, oil, weak acid and alkali, and is not easily corroded after long-term use; The three piece structure is tightly connected by bolts, which can withstand certain pipeline pressure, avoid medium leakage, and adapt to medium and low pressure pipeline systems.
2Easy disassembly and maintenance
Compared to integrated ball valves, the three piece structure allows for separate disassembly of the left and right valve bodies, eliminating the need to dismantle the entire pipeline to replace seals and inspect the ball body; Threaded connections do not require welding, and the interface can be tightened with a wrench during installation to adapt to limited space scenarios and reduce construction difficulty.
3Reliable sealing and control
The valve seat is made of rubber or polytetrafluoroethylene material, which fits tightly with the ball and can block the flow of the medium when closed; The ball rotates flexibly, and the flow rate can be roughly adjusted by the valve stem angle. After the seal wears out, it can be replaced separately to extend the overall life of the valve.


2、 Typical application scenarios of three piece stainless steel threaded ball valve
1Civil and architectural water supply and drainage fields
Used for tap water and hot water pipelines in residential and commercial buildings, controlling the on/off of the medium, adapting to the hygiene requirements of drinking water, and threaded connections for easy maintenance in the later stage.
2Chemical and Industrial Auxiliary Systems
Suitable for auxiliary pipelines in chemical workshops, 316 stainless steel can withstand some weakly corrosive media; Control the on/off of the medium in machine tool cooling and hydraulic oil pipelines, and the three piece structure facilitates the maintenance of seals.
3Food and pharmaceutical auxiliary pipelines
Stainless steel meets hygiene standards and does not release harmful substances in food processing, cleaning, and raw material transportation pipelines; In the purified water and equipment cleaning pipelines of the pharmaceutical workshop, threaded connections are used to avoid welding residues that may affect water quality.
4HVAC system
Used for central air conditioning cooling water and chilled water pipelines, controlling the on/off of branch media; In the connecting pipeline of the underfloor heating water collector, the threaded connection facilitates household control, and the stainless steel is corrosion-resistant, preventing blockage and leakage.