The Worcester Series 44 is a high-performance three-piece ball valve manufactured by Worcester Controls. It is widely recognized in industry for its durability, reliability, ease of maintenance, and suitability for automated valve applications. The valve is designed to meet ANSI B16.34 standards and is available in a variety of body materials, seat materials, and end connections to handle a broad range of process conditions.
The Series 44 has been in service for decades and quickly became an industry benchmark for three-piece ball valve design. Over the years, Flowserve continuously improved the design with enhanced stem sealing, automation-ready mounting systems, and upgraded materials while maintaining the valve’s proven architecture.
Key Features
- Three-piece body design for easy in-line maintenance
- Bubble-tight shutoff with bidirectional sealing
- Automation-ready mounting platform
- High-cycle-life stem seals using advanced materials such as PEEK and Polyfill®
- Multiple end connection options (threaded, socket weld, butt weld, tube ends)
- Available in brass, carbon steel, stainless steel, and specialty alloys
- Wide range of seat and seal materials for challenging services
Typical Applications
- Chemical and petrochemical processing
- Oil & gas facilities
- Steam and thermal fluid systems
- Water and wastewater treatment
- Pharmaceutical manufacturing
- Food and beverage processing
- Cryogenic service
- General industrial process control and isolation
A major advantage of the Series 44 is its swing-out center section, which allows technicians to replace seats, seals, and the ball without removing the valve from the pipeline. This significantly reduces maintenance time and downtime. Combined with its long cycle life and automation capability, the Series 44 remains one of the most widely specified three-piece ball valves in industrial service.
In summary: The Worcester Series 44 is a proven, industry-standard three-piece ball valve known for reliability, maintainability, and adaptability across a wide range of industrial fluid-handling applications.
Industrial Floating Ball Valves Worcester Three Piece Products | Flowserve