Series 25A-F

The CMO 25A-F Grooved Butterfly Valve is a specialist concentric butterfly valve designed for fire protection and industrial water systems using grooved piping connections. Engineered for reliable shut-off performance and rapid installation, the 25A-F Series is ideal for sprinkler systems, fire protection networks, pumping stations, water distribution systems and HVAC applications. Manufactured with a durable ductile iron body and corrosion-resistant internal components, the valve provides dependable performance in demanding industrial and commercial environments. Its grooved-end connection design allows quick and simple installation into grooved piping systems, significantly reducing installation time and maintenance costs compared to conventional flanged systems. The 25A-F Series offers 100% watertight sealing and bidirectional flow capability, ensuring reliable isolation performance for critical fire protection and water service applications. The streamlined concentric disc profile minimises pressure loss and improves hydraulic efficiency throughout the system. Stainless steel bolts and corrosion-resistant materials further enhance durability and long-term operational reliability. Designed for PN16 pressure systems and compatible with grooved piping standards, the valve is available in sizes from DN50 to DN300. Its compact and lightweight design makes it particularly suitable for commercial buildings, industrial pipework and space-restricted installations. Operating temperatures typically range from -10°C to +90°C with standard EPDM seat materials. Operating temperatures may vary depending on seat and sealing material selection, with specialist configurations available for more demanding industrial applications. The CMO 25A-F Series can be supplied with lever, gearbox, pneumatic or electric actuation options, making it suitable for both manual operation and fully automated fire protection and industrial control systems. Optional ISO 5211 top flange mounting is also available for simplified actuator integration. Manufactured and hydrostatically tested in accordance with EN 12266-1 Class A standards, the valve delivers reliable sealing performance and long operational life in critical water and fire protection systems. Held in stock at Ultravalve and competitively priced, the CMO 25A-F Grooved Butterfly Valve provides a reliable and cost-effective solution for fire protection and industrial water flow control systems.