Worm Gear Fixed Ball Valve

The Worm Gear Fixed Ball Valve is a precision-engineered valve that controls fluid flow through a worm gear drive mechanism and a fixed ball design. Unlike floating ball valves, the fixed ball of this valve is supported by upper and lower bearings, ensuring it does not shift axially under medium pressure, thus reducing wear and extending service life significantly. The worm gear transmission system converts the rotational motion of the handwheel into smooth valve stem operation, offering labor-saving control and strong self-locking performance, which is particularly suitable for large-diameter or high-torque applications. Whether for cutting off, distributing, or regulating medium flow, this valve provides consistent and reliable performance in even the harshest working conditions.

1.Effortless Worm Gear Operation : Adopts a high-precision worm gear drive mechanism with a transmission ratio of 10:1 to 30:1, reducing manual operating force by 50%-80% compared to ordinary manual ball valves. The self-locking design prevents accidental valve movement due to medium pressure or external vibration, ensuring safe and stable operation even in unattended environments.

2.Reliable Double Sealing Performance : Equipped with spring-loaded valve seats that closely fit the ball to ensure excellent low-pressure sealing. The valve supports bidirectional sealing, meaning both the front and rear valve seats can achieve tight sealing, effectively preventing medium leakage. Optional soft seals (PTFE, PTFE+Glass, PPL) or metal hard seals (Stellite alloy overlay) are available to adapt to different temperature and medium requirements.

3.Durable Fixed Ball Structure : The fixed ball is supported by low-friction bearings, ensuring accurate positioning and uniform force distribution. This design avoids axial displacement of the ball caused by medium pressure, reduces wear on the valve seat and ball, and extends the valve's service life to over 5000 opening and closing cycles. The full-bore design ensures the valve flow aperture is the same as the pipeline diameter, enabling unobstructed fluid flow and easy pipeline cleaning.

4.High Safety Design : Integrates anti-blowout valve stem and anti-static structures, complying with API 607 fire safety standards to prevent accidents such as valve stem blowout or static accumulation. The valve body is designed with a built-in drain valve, allowing for safe discharge of medium in the valve cavity to avoid pressure buildup and potential risks.

5.Wide Material Adaptability : Valve body and internal parts are available in a variety of high-quality materials, including WCB, 304, 316, 304L, 316L, and alloy steel, to meet the corrosion resistance requirements of different media such as water, steam, oil, nitric acid, acetic acid, and natural gas containing hydrogen sulfide. All materials undergo strict quality inspection to ensure compliance with international standards.

6.Easy Installation & Maintenance : The valve adopts a flange connection design that is compatible with international standards (GB, JB, ANSI, DIN), facilitating quick and convenient installation in existing pipeline systems. The simple structure and movable sealing rings make disassembly, inspection, and replacement easy, reducing maintenance costs and downtime.

- Petroleum & Natural Gas Industry : Oil and gas exploration, refining, long-distance pipelines, and gas regulating stations. Suitable for buried installation with fully welded valve body to reduce project costs and avoid external damage.

- Chemical Industry : Production lines involving corrosive media, such as nitric acid, acetic acid, urea, and chemical solvents. The corrosion-resistant material options ensure long-term stable operation in harsh chemical environments.

- Power Industry : Thermal power plants, nuclear power plants, and power transmission systems, used to control the flow of steam, cooling water, and other media.

- Metallurgical Industry : Steelmaking, non-ferrous metal smelting, and other processes, adapting to high-temperature and high-pressure working conditions.

- Urban Infrastructure : City gas supply networks, central heating systems, and water treatment plants, providing reliable cut-off and regulation functions for municipal pipelines.

- Other Fields : Shipbuilding, pharmaceutical, papermaking, and food processing industries, meeting the strict hygiene and safety requirements of different sectors.

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