MEDIUM PRESSURE PUMPS

The 3:1 and 5:1 Stub Pump Family From Lincoln

3:1—5:1 • Motor Oil, ATF, Gear Lube and Other Fluid Lubricants

For over 75 years, Lincoln’s exclusive pump designs have proven their superiority in application after application. And our lineup of strong, silent oil-dispensing pumps is no exception.

Both our stub pumps are built with the same rugged reliability and powerful performance you’ve come to expect from Lincoln. They are super quiet—the quietest pumps on the market. They deliver increased output for faster product delivery. And they let you handle a wider range of applications with total mounting flexibility.

Lincoln has taken the time proven pump design of the Lincoln 84933 5:1 pressure ratio balanced double-acting oil stub pump and created a more compact air motor to produce a 3:1 pressure ratio balanced double-acting oil stub pump, model 282396. This pump creates a versatile, economical, reliable and smooth delivering lower pressure version of the Lincoln 5:1 ratio pump.
Since the 282396 balanced double-acting 3:1 pressure ratio oil stub pump and the 84933 balanced double-acting 5:1 pressure ratio oil stub pump share all dimensions other than air motor cylinder diameter, these pumps are now directly interchangeable without piping changes.

The Lincoln oil pump design enables all pump users to choose 3:1 ratio or 5:1 ratio pump models to suit their specific application.

Series 25 Pumps

This 2″ diameter, 25 cubic inch displacement stub pump family is based on our 3:1 ratio 282396 bare stub pump.

3:1 pressure ratio stub pump assembly comes complete with 282396 bare stub pump, 84935 pump cover kit, 73024 oil connecting hose, 72024 air connecting hose, 241584 90° volume union elbow, 815 air coupler, 11659 air nipple and 84538 bung bushing. Delivers a uniform six gallons of product per minute free delivery. Ideal for dispensing fluids from drums, tanks or remote standpipe mount.

ModelDesc.Bare Pump #Free DeliveryRatioDrum SizeAir InletMaterial OutletUse /
Location
282133Bare Drum Pump2823966 gall3:155-gal.1/4″ NPT1/2″ NPTreplacement
282396Bare Drum Pump2823966 gall3:1stub/universal1/4″ NPT1/2″ NPTuniversal
2424Stationary2821336 gall3:155-gal.1/4″ NPT1/2″ NPTshop
2437Stationary2826866 gall3:116-gal.1/4″ NPT1/2″ NPTshop
282398Stub Pump Assemb.2823966 gall3:1stub/universal1/4″ NPT1/2″ NPTuniversal
284168Stationary tank2823966 gall3:1270-275 gal.1/4″ NPT1/2″ NPTshop
284231Lube truck2821336 gall3:116-gal.1/4″ NPT1/2″ NPTlube truck

Series 40 Pumps

This industry proven 21/2″ diameter, 40 cubic inch displacement stub pump family is based on the Lincoln 5:1 ratio 84933 bare stub pump.

5:1 pressure ratio stub pump assembly comes complete with 84933 bare stub pump, 85935 pump cover kit, 73024 oil connecting hose, 72024 air connecting hose, 241584 90° volume union elbow, 815 air coupler, 11659 air nipple and 84538 bung bushing. Delivers a uniform six gallons of product per minute free delivery.

ModelDesc.Bare Pump #Free DeliveryRatioDrum SizeAir InletMaterial OutletUse /
Location
84933Bare Stub Pump849336 gall5:1stub/ universal1/4″ NPT1/2″ NPTuniversal
285133Bare Drum Pump & Tube849336 gall5:155-gal.1/4″ NPT1/2″ NPTreplacement
2524Stationary 55 gal.2851336 gall5:155-gal.1/4″ NPT1/2″ NPTshop
2537Stationary 16 gal.2856866 gall5:116-gal.1/4″ NPT1/2″ NPTshop
84934Stub Pump Assemb.849336 gall5:1stub/universal1/4″ NPT1/2″ NPTuniversal
285168Stationary tank849336 gall5:1250-/ 275-gal.1/4″ NPT1/2″ NPTshop
285231Lube truck2851336 gall5:155-gal.1/4″ NPT1/2″ NPTlube truck

Series 20 Pumps / 3:1 Press. Ratio
3:1 Ratio • Corrosive Fluids

Model 84145-9 Stainless Steel
For pumping synthetic hydraulic oil, antifreeze or corrosive products. Pump may be coupled to stand pipe, mounted with bracket and suction kit or pump tube extension may be added for bung mounting to bulk tank, 2.5-gallon a minute free delivery. Pump tube constructed of 316 stainless steel and features Teflon® packings, air inlet 1/4″ NPT(f), material outlet 1/2″ NPT(f) comes with air coupler and plug and 84147-9 product check assembly.

Model 84080-9 Stainless Steel
Recommended for use with antifreeze, solvents and windshield washer solution. 316 Series stainless steel construction and Teflon® packings assures long life. 3:1 ratio pump for transfer of corrosive or toxic fluids. Mounts on 55-gallon bung opening drums. Delivers 2.5 gpm. Lasts longer than carbon steel models in corrosive service. Maximum air pressure 125 psi.