Tough As Nails Cast Iron Concentric Reducer Coupling With Flanged Face And Drill Connection 4 Inch By 3 Inch Class 125 Pipe Fitting For Heavy Duty Industrial And Fire Sprinkler Use

Heavy Duty Cast Iron Pipe Reducer Coupling Fitting
✔️ Pack Of 2 Four Inch To Three Inch Taper Reducer Class 125

This black cast iron concentric reducer coupling connects different pipe diameters in fluid handling systems. It works great for fire sprinkler networks, industrial water lines, and commercial plumbing setups where steady flow matters most. Each order ships as a pack of 2 matching reducers built for reliable performance.

✅ Cast Iron Body Built For High Impact Resistance
✅ Rated For 175 Psi Maximum Operating Pressure
✅ Handles Temperatures From Negative Twenty To One Hundred Fifty Degrees F
✅ Flanged Facing Meets Asme B16 Standards

💡 What size reducer fitting works best for standard fire sprinkler branch lines?

Matching pipe diameters reliably keeps commercial sprinkler loops handy and ready for routine checks.
Four inch main pipes step down smoothly to three inch branches without flow restriction
Drilled flange holes lock directly onto existing pump and manifold plates
Class 125 rating stands strong against daily valve cycling and thermal shifts
Fire safety listings clear building permits fast during facility upgrades

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