Parker P31 Mini Lubricator



  • Integral 1/4" ports
  • Robust, lightweight aluminum construction
  • Proportional oil delivery over a wide range of air flows
  • Fingertip ratchet control for precise precise oil drip rate adjustment


Lubricator with drain

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Part Numbers

Part Number  Description

Port Size

Dm3/s (scfm)

Max. Bar (psig)


mm (in)


mm (in)


mm (in)


Poly bowl - no drain

 1/4" 19 (40) 10 (150) 153.3 (6.04)  40 (1.58)  40 (1.58) 
P31LB92LMNN  Metal bowl - no drain
 1/4" 19 (40) 17 (250) 153.3 (6.04) 
  40 (1.58)   40 (1.58)



Service Kits and Mounting Brackets

Part Number Description
P31KB00BGN Plastic bowl / Bowl guard no drain
P31KB00BMN Metal bowl / w/o sight gauge no drain
P31KA00PG Drip control assembly
P31KA00PL Fill plug
P31KA00MW C-bracket (fits to body)
P31KA00MT T-bracket with body connector
P31KA00CB Body connector

Technical Specifications

Flow Capacity: 19 dm3/s (40 SCFM)
Operating Temperature: (Metal Bowl)  14°F to 150°F
  (Plastic Bowl) 14°F to 125°F
Max. Supply Pressure: (Metal Bowl) 17 bar (250 psig)
  (Plastic Bowl) 10 bar (150 psig)
Useful Retention: 0.6 oz
Port Size: 1/4" (BSPP, BSPT, NPT)
Weight: 0.29 lbs (0.13 kg)

Warning Triangle WARNING: These products can expose you to chemicals including lead and/or DEHP and/or carbon black, which are known to the State of California to cause cancer or birth defects or other reproductive harm.  For more information go to

Parker Air Preparation

Global Air Prep
  • Modular design allows for quick component change - no need to disconnect piping
  • Can be used without modular connectors using existing piping
Prep-Air II
  • Wide selection of sizes and options
  • Proven design, widely used

Stainless Steel FRLs

  • Suitable for most corrosive environments

Precision Regulators

  • Flows to 150 SFFM
  • Pressures to 500 PSIG

Electronic Proportional Regulators

  • All controls on the same face
  • Highly visible LED Display
  • Modular Mounting