← All manufacturer lines
Line 03.05 — Manufacturer detail
Hymax / BY MUELLER
Smart wide-range couplings — now part of Mueller Water Products — for connecting and repairing dissimilar pipe in potable water and sewage. Field-proven in over a million North American installations, sizes 1.5" to 70" including custom.
Products & specifications
- HYMAX CouplingWide-range, stab-ready section-replacement coupling with top-facing bolts — no under-digging. 2.1" range · 4 bolts · 4° deflection/side
- HYMAX GRIPRestraint coupling with a patented radial GRIP chain that tightens under axial load — circular restraint instead of point-loading wedges. Fits ductile iron, cast iron, steel, PVC, and HDPE (with stiffeners). AWWA C219 · NSF-61/372 · 232 psi
- Flange Adaptors, Reducers, Elbows & SwivelJoinConnect flanged valves and pumps, step diameters, or restrain pipes meeting at any angle 0–90°. HLD to 60"
- Dual sealing & MAG boltsHydraulically-assisted gasket self-inflates under line pressure; zinc-embedded anti-galling bolts need no grease. ASTM A536 ductile iron · −20 to 125°F
Spec sheets & downloads
Marketing & technical materials ↗
Submittal drawings (2D/3D) ↗
Spec it, stock it, or see it in person.
Rockacy & Associates — your factory representative for Hymax.
Product data compiled from www.hymaxusa.com — retrieved Sept 2026. Verify against current manufacturer submittals before bidding.