83311-3 | Centro-Matic SL-42 Series Oil Injector Assembly

  • For single-line central lubrication system.
  • For dispensing fluid or semi-fluid lubricants.
  • Output is externally adjustable.
  • Indicator stem permits visual check of injector operation.
  • May be combined in a circuit of injectors SL-43, SL-41 and/or SL-44.
  • Individual injectors can be easily removed for inspection or replacement.
  • Carbon steel injectors with Nitrile or flouroelastomer packings.
  • Injectors with flouroelastomer packings are used for heat resistant applications or when lubricant to be dispensed requires flouroelastomer packings for compatibility (indicated by black adjustment caps).
Output Min./Max. 0.001 cu. in. / 0.016 cu. in.
Operating Pressure Min./Max. 750 psig / 1000 psig
Operating Pressure - Typical 850 psig
Operating Pressure - Vent 150 psig
Manifold Inlet Connection 1/8" NPTF (F)
Injector Outlet Connection 1/8"O.D. tube connection


 Model Number of Outlets A Dimension B Dimension
Standard 3 2 5/8" 3 1/8"



  1. Injectors, except replacement injectors for manifold, include compression nut and ferrule for tubing – 1/8" O.D. as standard. Other outlet connectors for feed line optional.
  2. Injectors with manifolds include two mounting clips and screws.
  3. Standard injectors have Nitrile packings (200°F/93°C max.); Heat Resistant injectors have flouroelastomer packings (350°F/176°C max., depending on lubricant used) and black adjusting cap. Check packing compatibility with synthetic lubricants.Output with indicator cap hand-tightened is .001 cu. in. Maximum output is achieved with two turns at .001 cu. in./turn.



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