Nrs Ductile Iron Gate Valve
Nrs Ductile Iron Gate Valve – High-Strength Buried Water Mains in Compact Configuration
NRS (Non-Rising Stem) Ductile Iron Gate Valves combine superior ductile iron strength with compact non-rising stem design, dominating large-diameter African water transmission mains, irrigation trunk lines, and fire protection systems requiring both high mechanical strength and shallow burial installation. Ductile iron’s exceptional impact resistance withstands installation stresses, soil loads, and water hammer common to African water infrastructure.
From Egyptian irrigation networks to South African metropolitan water systems, NRS ductile iron gate valves serve DN 50 to DN 1200 (2″ to 48″) buried applications in PN 10, 16, 25 ratings per ISO 7259, EN 1171, and AWWA C515. The non-rising stem design enables installation in shallow trenches and confined underground spaces while ductile iron construction provides 3× the strength of cast iron alternatives—optimal for critical water transmission requiring both mechanical reliability and space-efficient installation. See our Gate Valve category for general context.
Key Features & Benefits
High strength
Underground installation
Impact resistance
Size Range: DN 50 to DN 1200 (2" to 48")
Pressure Class: PN 10, 16, 25
API 600/API 6D Certified
Global Applications
Large-diameter water trunk mains, regional transmission systems, and irrigation conveyance requiring high-strength ductile iron in compact NRS configuration for buried installation.
Buried water distribution, underground utilities, and subsurface piping systems where ductile iron strength combines with NRS space-saving design.
Underground fire water distribution, hydrant branch connections, and fire protection networks requiring high-strength ductile iron with compact NRS installation.
Products
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