Externally Threaded Replacement Balls

Externally threaded balls have male threads that screw directly onto a rod, post, or fitting, offering secure, vibration-resistant attachment ideal for float valves and level sensors. Internally threaded balls accept a bolt or rod inserted into the ball itself. The best choice depends on your mounting hardware and system design—our team can recommend the right configuration for your application.

We offer a wide range of thread specs including 1/4-20, 3/8-16, 1/4 NPT, 3/8 NPT, 1/2 NPT, 5/8-11 UNC, and 3/4 NPT, along with fully custom thread options to match your existing hardware. Our engineering team can machine threads to precise specifications for float valves, level sensors, and other liquid-handling equipment.

Our externally threaded replacement balls are manufactured primarily from 304 stainless steel, with 316 stainless steel available for applications requiring enhanced corrosion resistance, such as chemical processing or marine environments. Other materials can be sourced upon request to meet specific durability, weight, or regulatory requirements.

Yes, all float balls can undergo pressure testing tailored to your system's operating conditions before shipment. This ensures reliable performance in high-pressure environments such as vacuum tanks, steam traps, and sealed liquid level systems, reducing the risk of failure once installed in your equipment.

Round float balls are available in sizes from 1-1/2 inch up to 14 inches in diameter, while oblong floats range from 2 x 6 inches to 9 x 14 inches with various NPT and UNC thread fittings. Custom sizes outside this range can also be manufactured to fit unique tank or valve configurations.

Yes, our externally threaded replacement balls are available in matte (unfinished), brushed, and polished mirror finishes. Finish selection can affect corrosion resistance, visibility, and aesthetics, making it easy to match balls to food processing, chemical, decorative, or general industrial applications.