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United Water Products
Wide Range Adapter - Model 4428 - Item # WRAS Approved Wide Range Adapter-Water Works - United Water Products
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Coupling and Wide Range Adapter Brochure

Wide Range Adapter - Model 4428

WRAS Approved

The Uni-Fit Model 4428 “Universal Flanged Coupling Adapter” features all of the the wide range advantages of  the Model 4200, and joins plain-ended pipe to flanged fittings, valves, or equipment.  The Model 4428 Flange offers a universal drilling pattern that will mate with either ANSI 125 / 150# flanges or Metric PN 10 / 16 Flanges.



1.  Middle Ring - Ductile Iron, ASTM A536, Grade 65-45-12

2.  End Ring - Ductile Iron, ASTM A536, Grade 65-45-12

3.  Gasket - EPDM

4.  Bolt - High Strength Zinc Coated Steel*

5.  Nut - High Strength Zinc Coated Steel

6.  Washer - High Coated Zinc Plated Steel

7.  Coating - Fusion Bonded Epoxy Coated to 200 Microns**

8.  Working Pressure:  250 psi


*    Stainless Steel Type 304 Optional

**   NSF 61 Approved Material 


Product variations and sizes




Wide Range Adapter

Model 4428


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To learn more about pricing, product customizations, delivery times and more, please call United Water Products directly at 877-766-4459 or send us an email through our Contact form.

United Water Products

Valves, hydrants and pipeline accessories for Water Works and Fire Protection


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Product Brochure
Fire Hydrant - Dry Barrel F-06
Fittings - Flanged - ANSI B16.1
Fire Hydrant - Wet Barrel F-08
Fittings - Mechanical Joint - ANSI/AWWA C111/A21.10
Flanges - Redi-Flange
Adapters - UNI-FIT Adapters & Couplings
Fittings - Flanged - AWWA C110

Valves - NRS Gate Valves
Flange Jointing Guidebook
Fire Protection Price List
Fire Hydrant Price List
Waterworks Price List
MJ Jointing Guidebook
UWP AWWA Products Price Sheet
Posi-Grip Adapter Brochure

3rd Party Independant Testing & Approvals

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