• 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
  • Steel Plate Flanges

Steel, Stainless & Aluminum Plate-Style Flanges

We provide steel, stainless steel and aluminum slip-on and blind plate-style flanges in a wide range of dimensions for a variety of applications. Our steel plate flanges meet ANSI Class 150 pattern specifications and slip-on style flanges meet AWWA C207-13 specifications. For low-pressure applications, aluminum pipe flanges are preferred in irrigation applications for their corrosion resistance qualities.

Class 150 Steel Slip-On Plate Flanges

(Series PF)
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Class 150 Stainless Steel Slip-On Plate Flanges

(Series SPF)
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Aluminum Flanges

(Series ALPF)
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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