Hydraulic Pipe Fitting Torque Specifications

  1. Inspect port components to ensure that male and female threads are free of nicks, burrs, dirt, etc.
  2. Apply sealant/lubricant to male pipe threads.  Pre-applied Vibraseal is preferred over other sealants.  With any sealant, the first few threads should be left uncovered to avoid system contamination.  If PTFE Tape is used, it should be wrapped 1-1/2 turns in a clockwise direction when viewed from the end.
  3. Screw Fitting into female pipe port to finger tight position.
  4. Wrench tighten fitting to the appropriate TFFT shown in the chart to the right, making sure the tube end of the shaped fitting is aligned to receive incoming tube or hose assembly.
 

Finger Tight Torque Specifications

Pipe Thread Size Turns From Finger Tight (TFFT) 
-02 2.0 – 3.0
-04 2.0 – 3.0
-06 1.5 – 3.0
-08 2.0 – 3.0
-12 2.0 – 3.0
-16 1.5 – 2.5
-20 1.5 – 2.5
-24 1.5 – 2.5
-32 1.5 – 2.5

 

 

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