4-Lug Chicago Coupling Hose Coupling

4-Lug Chicago Coupling Hose Coupling

from 22.78

The original quarter-twist universal air hose connection in large hose 4-lug series. 4-lug coupling head will interchange in 1-1/4 through 2 inch sizes.

  • 4-Lug Universal Chicago Coupling

  • Malleable Iron or Brass (not lead-free)

  • Size listed is hose diameter (inside)

  • Install using bolted interlocking hose clamps

Size (Hose ID):
Material:
Quantity:
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Install using four bolt interlocking hose clamps.  Using a worm drive (screw) clamp will decrease the pressure rating and the shank retention under stress.

Never use Chicago type universal couplings for steam service.  

Meets specification A-A-59553 supercedes Mil Spec WWC-633D.

Chicago couplings do not interchange with sandblast, Minsup, or European style couplings of similar design.