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Expansion Couplings

Winzeler Stamping Company’s trademark MaxiFlow ™ expansion couplings for plastic and rubber hose have set the standard for OEM’s world-wide. Couplings are wrought brass and expanded from the inside, providing a positive hose connection and preventing leaking and blow-off.

No inside dimension reduction at the coupling, provides for unrestricted water flow.

Female ends are assembled with a standard round nut or a heavy-duty octagonal nut. Male ends have rolled threads. Available with ¾” NHT or ¾” BSP threads for a variety of I.D. hose sizes.

Contact Us to discuss or quote the following available upgrades:

  • Nickel plating
  • Customer identification stamps
  • Lead-free Eco Brass
Outside Diameter
Length
End Type
Thread Specification
Product Grouping
  Product Name  Model  Outside Diameter  Length  End Type  Thread Specification  Product Grouping   
.375 Expansion Coupling - Female
.375 Expansion Coupling - Female
2.16717
0.375 0.812 Female 3/4 - 11.5 NHT Maxi-Flow™ View Details Button
.375 Expansion Coupling - Male
.375 Expansion Coupling - Male
2.16715
0.375 0.812 Male 3/4 - 11.5 NHT Maxi-Flow™ View Details Button
.375 Expansion Coupling - Male
.375 Expansion Coupling - Male
2.16720
0.375 0.812 Male 3/4 - 14 BSP/Whitworth Maxi-Flow™ View Details Button
.375 Expansion Coupling - Male
.375 Expansion Coupling - Male
2.16721
0.375 0.812 Male 3/4 - 14 BSP/Whitworth Maxi-Flow™ View Details Button
.420 Expansion Coupling - Female
.420 Expansion Coupling - Female
2.16148
0.42 0.812 Female 3/4 - 11.5 NHT Maxi-Flow™ View Details Button
.420 Expansion Coupling - Female
.420 Expansion Coupling - Female
2.16522
0.42 0.812 Female 3/4 - 14 BSP/Whitworth Maxi-Flow™ View Details Button
.420 Expansion Coupling - Female
.420 Expansion Coupling - Female
2.16645
0.42 0.812 Female 3/4 - 14 BSP/Whitworth Maxi-Flow™ View Details Button
.420 Expansion Coupling - Female
.420 Expansion Coupling - Female
2.16678
0.420 0.812 Female 3/4 - 11.5 NHT Composite™ View Details Button
.420 Expansion Coupling - Male
.420 Expansion Coupling - Male
2.16150
0.42 0.812 Male 3/4 - 11.5 NHT Maxi-Flow™ View Details Button
.420 Expansion Coupling - Male
.420 Expansion Coupling - Male
2.16521
0.42 0.812 Male 3/4 - 14 BSP/Whitworth Maxi-Flow™ View Details Button
.590 Expansion Coupling - Male
.590 Expansion Coupling - Male
2.16420
0.67 0.625 Male 3/4 - 11.5 NHT Maxi-Flow™ View Details Button
1/2" Expansion Coupling - Female
1/2" Expansion Coupling - Female
2.16177
0.5 0.812 Female 3/4 - 11.5 NHT Maxi-Flow™ View Details Button
1/2" Expansion Coupling - Female
1/2" Expansion Coupling - Female
2.16178
0.5 0.812 Female 3/4 - 11.5 NHT Maxi-Flow™ View Details Button
1/2" Expansion Coupling - Female
1/2" Expansion Coupling - Female
2.16548
0.5 0.812 Female 3/4 - 11.5 NHT Maxi-Flow™ View Details Button
1/2" Expansion Coupling - Female
1/2" Expansion Coupling - Female
2.16666
0.5 0.812 Female 3/4 - 14 BSP/Whitworth Maxi-Flow™ View Details Button
1/2" Expansion Coupling - Female
1/2" Expansion Coupling - Female
2.16593
0.500 0.812 Female 3/4 - 11.5 NHT Composite™ View Details Button
1/2" Expansion Coupling - Male
1/2" Expansion Coupling - Male
2.16176
0.5 0.812 Male 3/4 - 11.5 NHT Maxi-Flow™ View Details Button
1/2" Expansion Coupling - Male
1/2" Expansion Coupling - Male
2.16665
0.5 0.812 Male 3/4 - 14 BSP/Whitworth Maxi-Flow™ View Details Button
19/32" Expansion Coupling - Female
19/32" Expansion Coupling - Female
2.16160
0.595 1 Female 3/4 - 11.5 NHT Maxi-Flow™ View Details Button
19/32" Expansion Coupling - Female
19/32" Expansion Coupling - Female
2.16634
0.595 1 Female 3/4 - 14 BSP/Whitworth Maxi-Flow™ View Details Button
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