Alignment Fittings

Flo-Fit® Alignment Fitting

Marotta’s Flo-Fit is a patented fitting that eliminates pipe alignment problems, reduces stress and provides a leak-free assembly unaffected by shock, vibration or thermal distortion. The aligning stud of the Flo-Fit pivots freely and smoothly over the highly polished ball socket allowing 3.5° swing from center.


  • Fire Suppression Systems
  • Life Support Systems
  • Fuel Oil Controls
  • Maneuverability Controls
  • Seawater Systems
  • Recovery/Launch Systems
  • Propulsion Controls
  • Weapons Systems


This misalignment feature of the Flo-Fit ‘forgives’ cutting and welding assembly errors. The feature also reduces pipe stress caused by distortion in complete assemblies and permits the easy removal of components/pipe sections. This unique design has two seals – both the same size – located close to the internal diameter of the pipe, minimizing pressure separation forces. Only a low sealing torque is required. (Sealing torque depends on pipe size and line pressure.)

Download Datasheet

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Design Features

  • 3.5º deflection from center in any quadrant
  • Pipe sections/components are easily removed with out bending or stress
  • Non-restricted flow path
  • Compact size for simplified installation and handling, reduces space and weight requirements
  • Line pressures up to 10,000 psig
  • Burst 4:1
  • Seals of Buna N, Teflon, Copper, etc.
  • Materials – 300 & 400 series stainless and other weldable materials available on request
  • Butt or socket weld ends.

MARGIN FOR MISALIGNMENT: Tangent of angle time pipe length equals inches of misalignment from center; i.e. misalignment in 10 feet of pipe approximately 7 inches from center