83715-4 | Centro-Matic SL-33 Series Grease Injector Assembly

  • For single-line, high-pressure central lubrication system
  • For dispensing petroleum-based lubricants with a viscosity up to NLGI No. 2
  • Output is externally adjustable
  • Indicator stem permits visual check of injector operation
  • May be combined in a circuit of Injectors SL-32, SL-V, SL-V XL, SL-1 and/or SL-11
  • Individual injectors can be easily removed for inspection or replacement
  • Available in stainless steel SAE 304, for application where environmental conditions are hazardous to carbon steel or in industries preferring stainless steel


  • Output:
    • Minimum: .001 cu. in. (.016 cc)
    • Maximum: .003 cu. in. (.049 cc)
  • Operating pressure:
    • Minimum: 1200 psig (83 bar)
    • Maximum: 3500 psig (241 bar)
    • Typical: 1500 psig (103 bar)
    • Vent: 200 psig (14 bar)


Material 304 Stainless Steel
Number of Outlets 4
Manifold Inlet Connection NPTF 1/8" (F)
Injector Outlet Connection O.D. Tube 1/8"
A Dimension 3 3/8"
B Dimension 3 7/8"



  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. Injectors have nitrile packings (200°F max. (93°C)). Checking packing compatibility with synthetic lubricants.
  4. Output with indicator cap hand-tightened is .001 cu. in. Maximum output is achieved with two turns at .001 cu. in./ turn.


Note:  Product images are for representation only.

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