4" Grooved 90° Long Radius Elbow – Ductile Iron, UL/FM Approved Ultra-Low NOx or water hammer in pressurized

or water hammer in pressurized systems

non-flexing pipe connection ideal for high-demand systems like fire protection mains

Angle: 45-degree elbow

81 Uniform Energy Factor Flow Rate ~7

Rated for gas pressures up to 10 psi

4" Grooved 90° Long Radius Elbow – Ductile Iron, UL/FM Approved Ultra-Low NOx or water hammer in pressurized4" Grooved 90 Long Radius Elbow Ductile Iron The 4 inch grooved 90 degree long radius elbow is built for high performance fire protection and mechanical piping systems where smooth directional changes are essential. Designed with a gentle 1. 5D sweep, this fitting helps maintain flow efficiency, reduce pressure drop, and minimize stress on the system. Why Use a Long Radius Elbow? Compared to short radius fittings, a long radius elbow offers a broader