• Flanges
    • AWWA Flanges
    • 1/2″ Thick Light Weight Flanges
    • Plate Style Flanges
    • ANSI-Style Forged Raised Face Flanges
    • Exhaust Flanges
    • DIN (Metric) Flanges
    • Backing Flanges
  • Expansion Joints
    • Rubber Expansion Joints And Accessories
    • Pump Connectors
    • Rubber Expansion Joints Installation Guide
  • Valves
    • Butterfly, Check Valves And Accessories
    • Butterfly Valves Installation, Operation, & Maintenance Guide
  • Fittings & Accessories
    • KLAMPz Grooved Piping System (UL/FM)
    • Other Fittings & Accessories
      • Exhaust Rain Caps
      • Gaskets
      • Hydraulic Motor Pump Brackets
      • Threaded Half Couplings
      • Threaded One End Nipples
      • Threaded Both End Nipples
      • Weld Cones
      • 90 Degree Long Radius Elbow
  • Custom Machining
  • About Us
  • Contact Us
API International, Inc.
  • Flanges
    • AWWA Flanges
    • 1/2″ Thick Light Weight Flanges
    • Plate Style Flanges
    • ANSI-Style Forged Raised Face Flanges
    • Exhaust Flanges
    • DIN (Metric) Flanges
    • Backing Flanges
  • Expansion Joints
    • Rubber Expansion Joints And Accessories
    • Pump Connectors
    • Rubber Expansion Joints Installation Guide
  • Valves
    • Butterfly, Check Valves And Accessories
    • Butterfly Valves Installation, Operation, & Maintenance Guide
  • Fittings & Accessories
    • KLAMPz Grooved Piping System (UL/FM)
    • Other Fittings & Accessories
      • Exhaust Rain Caps
      • Gaskets
      • Hydraulic Motor Pump Brackets
      • Threaded Half Couplings
      • Threaded One End Nipples
      • Threaded Both End Nipples
      • Weld Cones
      • 90 Degree Long Radius Elbow
  • Custom Machining
  • About Us
  • Contact Us
  • Backing Flanges

Backing Flanges

Our backing flanges include options for use with stub ends and angle face rings. We carry back-up flanges constructed of ductile iron, galvanized ductile iron or stainless steel, in a wide range of sizes preferred by agriculture and water works industries.

Ductile Iron Backing Flanges for Angle Face Rings

(Series ABF)
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Ductile Iron Backing Flanges for Stub Ends

(Series BF)
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Galvanized Ductile Iron Backing Flanges for Angle Face Rings

(Series GABF)
More

Stainless Steel Backing Flanges for Angle Face Rings

(Series SABF)
More

About API International

API International is a manufacturer and wholesale distributor of flanges, expansion joints, valves, other pipe fittings and custom fabricated parts for the Agriculture, Exhaust, HVAC and Water Works industries. We stock parts in our conveniently located warehouses for quick distribution throughout the United States, and our Machine Shop can modify stock items or produce custom product to meet your unique specifications.
 
© 2021 API International, Inc.
  • Product Catagories
    • Flanges
    • Expansion Joints
    • Pump Connectors
    • Valves
    • KLAMPz Grooved Piping System (UL/FM)
    • Other Fittings & Accessories
    • Custom Machining
  • Helpful Links
    • About Us
    • Contact Us
    • Catalog
    • Corporate Video
    • Flange Dimensional Tolerances
    • Terms and Conditions
 

Contact Us

API International, Inc.
12505 SW Herman Road
Tualatin, OR 97062

Phone: 503.692.3800

Email Us

 
© 1968 - 2021
API International, Inc. • 12505 SW Herman Road • Tualatin, Oregon 97062 • 503-692-3800