Stem and Shaft Extensions for Ball Valves and Butterfly Valves

Stem extensions and shaft extensions are essential accessories for ball valves and butterfly valves in industrial piping systems. They enable reliable valve operation in situations where the valve is installed in hard-to-reach or insulated areas, such as underground pipelines, high installations, or thermally protected systems.

Fergo offers custom-engineered spindle and shaft extensions for both ball valves and butterfly valves, designed to maintain full functionality, tight sealing, and torque transmission even under extreme conditions.

Our stem extensions for ball valves are manufactured from stainless steel or carbon steel, ensuring corrosion resistance and mechanical stability. They can be supplied in various lengths and configurations according to project-specific requirements. All designs are optimized for low maintenance and long service life, even in high-temperature or cryogenic applications.

Shaft extensions for butterfly valves provide the same operational reliability for larger or remotely operated systems. They allow the actuator or hand lever to be mounted at a convenient distance from the valve body, simplifying access during operation or maintenance. Fergo’s shaft extension assemblies ensure precise torque transfer without compromising valve performance or sealing integrity.

Our extensions are compatible with valves equipped with flange connections PN10, PN16, PN25, PN40, as well as ASME B16.5 Class 150, 300, and 600. They are fully compliant with international standards such as TA Luft, AD2000, PED2014/68/EU, and DGRL.

Each extension system is tested under extreme conditions to verify mechanical strength, alignment precision, and long-term reliability. Whether used in power plants, chemical processing, or water treatment facilities, Fergo’s spindle and shaft extensions guarantee safe and efficient valve operation even in challenging environments.

With over 20 years of experience and more than 5,000 successful industrial projects, Fergo delivers customized extension solutions that meet the highest quality and performance expectations.

Fergo – your partner for reliable spindle and shaft extensions for ball valves and butterfly valves.