1406/1406R Cast Couplings

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1406/1406R Cast Couplings

ROBAR  1406 Straight and Transition Couplings are used to make a non-restrained connection between two pipes of the same nominal size with same or different ODs. The 1406 is supplied with Stainless Steel fasteners.

ROBAR 1406R Reducing Couplings are used to make a non-restrained connection between two pipes of different nominal sizes.


Material Specifications:

Center Sleeve: Cast Ductile Iron
End Rings: Cast Ductile Iron
Gaskets: Nitrile (NBR) Rubber (Other compounds available)
Fasteners: 1408 – 5/8” NC HSLA Steel
1406 – 5/8” NC T304 Stainless Steel
Nuts coated with anti-galling compound
Torque: 70-80 ft. lbs.
Coating: Two coats of Enamel

Working pressures:  2″ through 12″ – 300 PSI

14″ through 24″ – 150 PSI