GENERAL CHARACTERISTICS
 
DAVINCI METAL SEAT GATE VALVES _ NON-RISING STEM F4/F5 are designed for reliable isolation service in water and general utility systems. Available in DN50 to DN300, with pressure ratings PN10/16, these valves provide robust performance and long service life in demanding installations.
Featuring a full bore design, they ensure unrestricted flow and minimum head loss, optimizing hydraulic efficiency. The non-rising stem configuration makes them suitable for installations with limited vertical space, while the construction allows repacking under pipeline pressure, minimizing downtime during maintenance. Low operating torque ensures smooth and efficient valve operation.
These valves are widely used in drinking water networks, bulk water storage systems, process water installations, pump stations, sewage water networks, and irrigation projects.
Manufactured in accordance with DIN 3352 and compliant with EN 1074-2 / GB/T 12232-1989, they meet recognized international standards. Face-to-face dimensions comply with EN 558-1 Series 14 (F4) and BS 5163, and installation is suitable between PN10/16 flanges according to EN 1092-2 and ISO 7005-2.
Pressure testing is performed according to EN 12266-1 Rate C, with the body tested at 1.5 × PN and the seat at 1.1 × PN.
In accordance with EU Directive 2014/68/EU (Pressure Equipment Directive), the product is excluded under Article 1, §2b up to DN300. Certified CE, these valves provide a durable, standards-compliant, and efficient solution for water and infrastructure applications.