OPW Engineered Systems
OPW Kamlok 633 D Coupler - Female NPT

OPW Kamlok 633 D Coupler - Female NPT

Vendor: OPW Engineered Systems

Coupling Type: Cam & Groove Couplings


For non-compressable liquids

Coupling Category:

Kamlock® Series


  • Long-Life Reliability - Specially designed and manufactured with 316 stainless steel and gasket materials to endure the harshest environments.
  • Added Protection - Exclusive features, such as Twin-Kam™ arms with special detent to secure arms in position to help prevent accidental uncoupling.
  • Ease-of-Use - Cam and groove design means smooth coupling and uncoupling while the patented Spring-Ring™ feature ensures that the finger rings do not get trapped under the coupling arms.
  • Best Value - Built to the highest quality standards with special ease-of-use design features at the price point of other standard cam and groove couplers makes OPW Kamloks® the best overall value in the industry.


  • Cam and Groove Design - Provides for reliable, smooth operation in 360° orientation.
  • Exclusive Twin-Kam™ Arms - Provides detent position that helps prevent unintentional arm release beyond 45°. Guaranteed For Life (GFL™) - if an arm breaks, it is replaced FREE.
  • Spring-Ring™ Finger Rings - Rings won’t get trapped under the arms with this patented feature, so opening/closing is quick and easy every time.
  • Available in 316 SST steel in a wide variety of sizes/styles

  • 633 D Coupler∗- Female NPT

    Prod. No. Size
    633D-SS05 3/4" Coupler x 1/2" FNPT
    633D-SS07 3/4"
    633D-SS10 1"
    633D-SS12 1-1/4"
    633D-SS15 1-1/2"
    633D-SS20 2"
    633D-SS30 3"
    633D-SS40 4"
    ∗ Designed for non-compressable liquids

    Kamlock/Autolock Ordering Specifications