DIN 3352 F4 Non-Rising Stem Gate Valves

Design Features

DIN 3352 F4 ductile iron non-rising stem gate valves, double flanged & resilient seated, PN 10 / PN 16.

At Metalsin, we supply DIN 3352 F4 ductile iron resilient seated non-rising stem (NRS) gate valves for waterworks. These valves feature:

• DIN 3352 F4: These gate valves are designed and manufactured in compliance with German standard DIN 3352. The face-to-face dimensions shall be made in accordance with series F4 of DIN 3202-1, which is equivalent to series 14 of EN 558-1.
• Non-Rising Stem: The NRS design means that the stem does not move vertically during the valve’s operation. Instead, it rotates in place to raise or lower the gate. This design minimizes the space required above the valve and enhances sealing reliability. Compared to the rising stem counterpart, the key advantage of the NRS design is its compact design — it requires less vertical space, making it ideal for installations in confined areas.
• Flanged Ends: Double flanged ends are cast integrally with the valve body, with dimensions according to DIN 2501 or EN 1092-2 PN 10 & PN16.
• Resilient Seated: The disc is fully coated by vulcanized EPDM to form a resilient and flexible seating design.

Technical Specifications

Typical drawing of ductile iron NRS gate valve made to DIN 3352 Series F4, resilient seated & double flanged, handwheel operated.