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Cast Brass Heavy Duty Couplings


Description   Photograph
5500 Series  
Cast Brass Heavy Duty Couplings
Coupling Type
Fire Hose Couplings
Coupling CategoryManufacturer 
Fire Hose Coupling Red Head 

Style 5500 -- Cast Brass W/ RL on Swivel & Male
Series # Hose Size Thread Size Bowl Size
in. in. in.
5510 1 1 1 1/4
5510 1 1 1 5/16
5510 1 1 1 3/8
5510 1 1 1 7/16
5510 1 1 1 1/2
5510 1 1 1 9/16
5515 1 1/2 1 1/2" NH or NPSH 1 3/4
5515 1 1/2 1 1/2" NH or NPSH 1 13/16
5515 1 1/2 1 1/2 1 7/8
5515 1 1/2 1 1/2" NH or NPSH 1 15/16
5515 1 1/2 1 1/2 2
5515 1 1/2 1 1/2 2 1/16
55175 1 3/4 1 1/2 2 1/16
55175 1 3/4 1 1/2 2 1/8
55175 1 3/4 1 1/2 2 5/32
5520 2 2 2 3/16
5520 2 2 2 5/16
5520 2 2" NPSH 2 7/16
5520 2 2" NPSH 2 1/2
5520 2 2" NPSH 2 5/8
5525 2 1/2 2 1/2" NH or NPSH 2 13/16
5525 2 1/2 2 1/2 2 7/8
5525 2 1/2 2 1/2" NH or NPSH 3
5530 3 3 3 1/2
5530 3 3 3 17/32
5530 3 3" NH 3 9/16
5530 3 3 3 9/16
5530 3 3 3 5/8
5530 3 3 3 3/4
5533 3 2 1/2 3 1/2
5533 3 2 1/2 3 17/32
5533 3 2 1/2 3 9/16
5540 4 4 4 3/8
5540 4 4 4 15/32
5540 4 4 4 1/2
5540 4 4 4 17/32

All Read Head 5500 Series couplings are made from cast red brass, conforming to Spec.WWC-621-G, Type A, Styles 1 and 2; and WWC-624-E, Type III, Styles 7 and 8.
Certificates of conformance furnished upon request.

- Ball bearing swivels in all larger couplings, 3" diameter and above.
- Our red brass expansion rings are more dependable than the yellow brass rings commonly supplied to the electrolysis caused by dissimilar metals.

Two rocker lugs on male and swivel. Pin lugs available on specific items.