Plunger Pumps | McMaster-Carr

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About Process Pumps

About Drum Pumps

Push the plunger to pump water, cleaners, and chemicals.

Styles A, B, and G are for thin liquids with a maximum viscosity of 700 or 750 centipoise.

Styles C-F are rated for liquids up to 2,500 centipoise. Style C are often used as hand pumps and do not come with a connector. To attach them to a container, select an optional connector.

Style A

			Temp. Range, °F				Intake
Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size	Includes	Tube OD	Tube Lg.	Discharge Location		Each
8	5-15	700	Not Rated	120°	2 NPT	Drum Connector	1 1/2"	22"	Spout End	0000000	000000
22	15-55	700	Not Rated	120°	2 NPT	Drum Connector	1 1/2"	39"	Spout End	0000000	00000

Style B

Pumps
			Temp. Range, °F				Intake		Discharge					Replacement 2 NPT Connectors
Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size	Includes	Tube OD	Tube Lg.	Tube ID	Tube OD	Tube Lg.		Each		Each
8	5	750	40°	120°	70 mm	Drum Connector	1/2"	13"	7/16"	5/8"	22"	00000000	000000	00000000	000000
8	5-15	700	Not Rated	120°	2 NPT	Drum Connector	1 1/2"	22"	7/16"	5/8"	22"	0000000	00000	000000	00
22	15-55	700	Not Rated	120°	2 NPT	Drum Connector	1 1/2"	39"	7/16"	5/8"	36"	0000000	00000	000000	00

Style C

			Temp. Range, °F		Intake		Discharge
Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	Tube OD	Tube Lg.	Tube ID	Tube OD	Tube Lg.		Each
5	5-15	2,500	35°	120°	1/2"	18"	7/16"	9/16"	9"	0000000	000000

Optional 2 NPT Connector	Each	000000
Optional 70 mm Drum Opening Connector	Each	00000
Optional 3/4 NPT Connector	Each	00000
Optional 33 mm Drum Opening Connector	Each	00000

Style D

			Temp. Range, °F				Intake		Discharge
Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size, mm	Includes	Tube OD	Tube Lg.	Tube ID	Tube OD	Tube Lg.		Each
6	5	2,500	35°	120°	61	Drum Connector	1/2"	14 1/2"	7/16"	9/16"	36"	0000000	000000
6	5	2,500	35°	120°	63	Drum Connector	1/2"	14 1/2"	7/16"	9/16"	36"	0000000	00000
6	5	2,500	35°	120°	70	Drum Connector	1/2"	14 1/2"	7/16"	9/16"	36"	0000000	00000

Style E

			Temp. Range, °F				Intake		Discharge
Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size	Includes	Tube OD	Tube Lg.	Tube ID	Tube OD	Tube Lg.		Each
5	5-55	2,500	35°	120°	2 NPT	Drum Connector	9/16"	36"	7/16"	9/16"	9"	0000000	000000
8	5-30	2,500	35°	120°	2 NPT	Drum Connector	1/2"	18"	7/16"	9/16"	48"	0000000	00000

Style F

Pumps
			Temp. Range, °F				Intake		Discharge					Optional 2 5/8" Buttress Connectors		Replacement 2 NPT Connectors
Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size	Includes	Tube OD	Tube Lg.	Tube ID	Tube OD	Tube Lg.		Each		Each		Each
Buna-N Rubber Piston
28	55	2,500	35°	120°	2 NPT	Drum Connector	1 1/2"	38"	1 1/4"	1 1/2"	36"	0000000	0000000	000000	00	000000	00
28	55	2,500	35°	120°	2 NPT	Drum Connector	1 1/2"	38"	1 1/4"	1 1/2"	72"	0000000	000000	000000	00	000000	00
CSM Rubber Piston
28	55	2,500	35°	120°	2 NPT	Drum Connector	1 1/2"	38"	1 1/4"	1 1/2"	36"	0000000	000000	0000000	000000	0000000	000000
28	55	2,500	35°	120°	2 NPT	Drum Connector	1 1/2"	38"	1 1/4"	1 1/2"	72"	0000000	000000	0000000	00000	0000000	00000
28	55	2,500	35°	120°	2"	Drum Connector	1 1/2"	38"	1 1/4"	1 1/2"	36"	00000000	000000	0000000	00000	0000000	00000
28	55	2,500	35°	120°	2"	Drum Connector	1 1/2"	38"	1 1/4"	1 1/2"	72"	00000000	000000	0000000	00000	0000000	00000
Viton® Fluoroelastomer Rubber Piston
28	55	2,500	35°	120°	2 NPT	Drum Connector	1 1/2"	38"	1 1/4"	1 1/2"	36"	0000000	000000	0000000	00000	0000000	00000
28	55	2,500	35°	120°	2 NPT	Drum Connector	1 1/2"	38"	1 1/4"	1 1/2"	72"	0000000	000000	0000000	00000	0000000	00000
28	55	2,500	35°	120°	2"	Drum Connector	1 1/2"	38"	1 1/4"	1 1/2"	36"	0000000	000000	0000000	00000	0000000	00000
28	55	2,500	35°	120°	2"	Drum Connector	1 1/2"	38"	1 1/4"	1 1/2"	72"	00000000	000000	0000000	00000	0000000	00000

Style G

			Temp. Range, °F				Intake
Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size	Includes	Tube OD	Tube Lg.	Discharge Location		Each
8	5-55	750	40°	120°	2 NPT	Drum Connector	5/8"	32"	Spout End	00000000	000000
16	5-55	750	40°	120°	2 NPT	Drum Connector	5/8"	32"	Spout End	00000000	00000

Compact Drum Pumps for Water and Chemicals

Designed to move low volumes of caustic liquids in confined areas, these pumps have a thin intake tube and a small handle. They are often used to pump cleaning fluids, acid-washing solutions, and bleach.

Style A pumps have a selectable flow rate, so you can adjust flow for different dispensing applications.

				Temp. Range, °F				Intake
Style	Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity	Min.	Max.	For Drum Opening Size	Includes	Tube OD	Tube Lg.	Spout Type		Each
A	2, 4, 6, 8	5	Not Rated	Not Rated	125°	3/4 NPT	__	5/8"	18 1/4"	Fixed	0000000	000000
A	2, 4, 6, 8	15-55	Not Rated	Not Rated	125°	2 NPT, 3/4 NPT	Two Drum Connectors	5/8"	33"	Fixed	0000000	00000
A	4, 8, 12, 16	15-55	Not Rated	Not Rated	125°	2 NPT, 3/4 NPT	Two Drum Connectors	5/8"	33"	Fixed	0000000	00000

Drum Pumps for Water and Coolant

A 316 stainless steel housing makes these pumps resistant to coolants such as ethylene glycol.

Repair kits include a gasket, a packing gland, a piston, a piston washer, and a push-on nut.

			Temp. Range, °F				Intake
Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size	Includes	Tube OD	Tube Lg.		Each
8	5-15	300	Not Rated	140°	2 NPT	Drum Connector	1/2"	22 1/2"	0000000	0000000
16	15-55	300	Not Rated	140°	2 NPT	Drum Connector	1 1/8"	39 1/2"	0000000	000000

Repair Kit	Each	000000
Replacement Drum Connector	Each	00000
Optional 5-Gallon Pail Adapter (2 NPT × 1 3/4 NPT) for Pump with 1/2" Intake Tube OD	Each	00000

Nondrip Drum Pumps for Water and Chemicals

Remote Tap Kit

Eliminate leaks and waste with a faucet-style nondrip nozzle that quickly starts and stops flow. Pressurize your container with a few pumps of the plunger handle, and use the one-touch nozzle to manage flow. Hold down the nozzle for intermittent dispensing, open the nozzle fully for continuous flow, and close the nozzle to stop flow entirely.

Remote tap kits extend your pump's reach for transferring liquid to tanks, mixers, and sprayers.

Pumps
			Temp. Range, °F				Intake				Remote Tap Kits
Flow Rate, gpm	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size	Includes	Tube OD	Tube Lg.		Each		Each
4.5	2-55	270	35°	110°	2 NPT	Drum Connector	5/8"	40"	0000000	0000000	0000000	0000000

Drum Pumps for Harsh Chemicals

With Spout End

With Nozzle

Made with PTFE components, these pumps stand up to aggressive chemicals our other drum pumps can't, such as hydrochloric acid, bleach, sodium hydroxide, and methyl ethyl ketone (MEK). A stopcock prevents fluid and vapor from leaking after use.

			Temp. Range, °F				Intake
Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size	Includes	Tube OD	Tube Lg.		Each
With Spout End
9	16	500	35°	105°	2"	Drum Connector	1 1/4"	23 5/8"	000000	000000000
With Nozzle
9	16	500	35°	105°	2"	Drum Connector	1 1/4"	23 5/8"	000000	00000000

Syringe-Tip Suction Drum Pumps for Water

Extract water from valve boxes, meter pits, and other small spaces.

			Tube
Flow Rate, oz./stroke	Max. Viscosity, cP	Temp. Range	ID	OD	Lg.		Each
24	1	Not Rated	7/16"	9/16"	17"	000000	000000

Drum Pumps for Fuel and Flammable Liquid

All of these pumps have bonding and grounding wires, while some also have an internal flame arrester, to pump fuel, cleaning solvents, and lacquer thinners.

Always bond and ground your application for static control. For more information about bonding and grounding, see Sections 1910.106 and 1910.107 of the Federal OSHA Code or see bonding and grounding equipment.

Steel pumps work with fuels and flammable liquids, but not especially aggressive and corrosive chemicals.

Stainless steel pumps handle aggressive and corrosive liquids that steel pumps cannot.

Pumps for 5-gallon containers have a drum connector that fits Rieke flex spouts and two screw cap adapters: 1 3/4" and 2 1/8".

Repair kits include components such as extension tubes, gaskets, and pistons.

						Intake
Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Max. Temp.	For Drum Opening Size	Includes	Tube OD	Tube Lg.	Features		Each
Steel
4	5	110	Not Rated	1 3/4", 2 1/4", 2 1/8", 2 7/8"	Drum Connector, Flex Spout Adapter, Two Screw Cap Adapters (1 3/4" & 2 1/8")	1/2"	16"	Bonding and Grounding Wires, Internal Flame Arrester	0000000	0000000
4	5	650	Not Rated	1 3/4", 2 1/4", 2 1/8", 2 7/8"	Drum Connector, Flex Spout Adapter, Two Screw Cap Adapters (1 3/4" & 2 1/8")	1 1/8"	15"	Bonding and Grounding Wires, Internal Flame Arrester	0000000	000000
8	15-55	650	Not Rated	2 NPT	Drum Connector	9/16"	16"-38"	Bonding and Grounding Wires, Internal Flame Arrester	0000000	000000
8	55	110	Not Rated	2 NPT	Drum Connector	1/2"	22"	Bonding and Grounding Wires, Internal Flame Arrester	0000000	000000
316 Stainless Steel
10	5-7	650	140° F	2 5/8", 2"	Drum Connector	1 1/2"	18"	Bonding and Grounding Wires	0000000	000000
20	30-55	650	140° F	2"	Drum Connector	1 1/2"	37 1/2"	Bonding and Grounding Wires	0000000	000000

Repair Kit for Steel Pumps with 110 cP Max. Viscosity	0000000	Each	0000000
Repair Kit for Steel Pumps with 650 cP Max. Viscosity	0000000	Each	000000

Deep-Reach Suction Pumps for Fuel

Remove liquid from hard-to-reach areas with a long, flexible intake tube that extends into deep and hard-to-access tanks.

Pumps with a PVC housing have a handle that acts as a siphon when fully extended.

Pumps with a brass housing come with 1/4" and 5/16" ID dipstick probes for engine and gear box use.

		Temp. Range, °F		Intake		Discharge
Flow Rate, oz./stroke	Max. Viscosity, cP	Min.	Max.	Tube OD	Tube Lg.	Tube ID	Tube OD	Tube Lg.		Each
PVC Plastic Housing
4	2,500	35°	120°	9/16"	72"	7/16"	9/16"	36"	0000000	000000
Brass Housing
5	500	40°	140°	3/4"	36"	1/2"	3/4"	36"	0000000	000000

Nondrip Drum Pumps for Fuel and Flammable Liquid

Remote Tap Kit

NFPA approved pumps are rated for use with Class I and II flammable and combustible liquids such as fuels, alcohols, and acetone.

Remote tap kits extend your pump's reach for transferring liquid to tanks, mixers, and sprayers. They include a splash guard, a 6-ft. PVC tube, and hardware.

Pumps
			Temp. Range, °F				Intake						Remote Tap Kits
Flow Rate, gpm	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size	Includes	Tube OD	Tube Lg.	Features	Flammability Rating		Each		Each
4.5	2-55	270	35°	110°	2 NPT	Drum Connector	5/8"	40"	__	__	0000000	0000000	0000000	0000000
4.5	2-55	270	35°	110°	2 NPT	Drum Connector	5/8"	40"	Bonding and Grounding Wires	NFPA 30 18.4.4.1	0000000	000000	000000	00

Drum Pumps for Diesel Exhaust Fluid

Made with polypropylene components, these pumps withstand highly corrosive diesel exhaust fluid (DEF) while preventing it from crystallizing. Intake tube is not included.

			Temp. Range, °F					Discharge
Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size	Includes	For Intake Tube OD	Hose OD	Hose Lg., ft.	Nozzle Type		Each
11	55-275	1.5	35°	110°	2"	Drum Connector	1"	3/4"	12	Automatic Shut-Off	000000	0000000

Drum Pumps for Food and Beverage

Use these pumps in food and beverage applications.

Style B-E pumps are FDA compliant for direct contact with food. Style B and C pumps have a colorful strap for color-coding your drums, which makes it easy to identify the drum contents.

				Temp. Range, °F				Intake			Discharge
Style	Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size	Includes	Tube OD	Tube Lg.	Discharge Location	Tube ID	Tube Lg.	Specifications Met	Choose a Strap Color		Each
B	12	5	8,800	35°	140°	2 NPT	5 Gallon Pail Adapter, Drum Connector	1 5/8"	16 1/2"	Spout End	__	__	FDA Compliant 21 CFR 174.5; FDA Compliant 21 CFR 177.1520; FDA Compliant 21 CFR 178.2010; FDA Compliant 21 CFR 178.3297; FDA Compliant 21 CFR 178.3400	White	0000000	000000
B	15	5	8,800	40°	120°	2 NPT	5 Gallon Pail Adapter, Drum Connector	1 1/2"	16 1/2"	Spout End	__	__	FDA Compliant 21 CFR 174.5; FDA Compliant 21 CFR 177.1520; FDA Compliant 21 CFR 178.2010; FDA Compliant 21 CFR 178.3297; FDA Compliant 21 CFR 178.3400	Black, Blue	00000000	00000
B	15	15, 30	8,800	40°	120°	2 NPT	Drum Connector	1 1/2"	30"	Spout End	__	__	FDA Compliant 21 CFR 174.5; FDA Compliant 21 CFR 177.1520; FDA Compliant 21 CFR 178.2010; FDA Compliant 21 CFR 178.3297; FDA Compliant 21 CFR 178.3400	Green	0000000	00000
B	15	30	8,800	40°	120°	2 NPT	Drum Connector	1 11/16"	30"	Spout End	__	__	FDA Compliant 21 CFR 174.5; FDA Compliant 21 CFR 177.1520; FDA Compliant 21 CFR 178.2010; FDA Compliant 21 CFR 178.3297; FDA Compliant 21 CFR 178.3400	White	0000000	00000
B	15	55	8,800	40°	120°	2 NPT	Drum Connector	1 1/2"	36"	Spout End	__	__	FDA Compliant 21 CFR 174.5; FDA Compliant 21 CFR 177.1520; FDA Compliant 21 CFR 178.2010; FDA Compliant 21 CFR 178.3297; FDA Compliant 21 CFR 178.3400	Black, Blue, Green, Orange, Purple	00000000	00000
B	15	55	8,800	40°	120°	2 NPT	Drum Connector	1 11/16"	45"	Spout End	__	__	FDA Compliant 21 CFR 174.5; FDA Compliant 21 CFR 177.1520; FDA Compliant 21 CFR 178.2010; FDA Compliant 21 CFR 178.3297; FDA Compliant 21 CFR 178.3400	White	0000000	00000
C	12	5	8,800	35°	140°	2 NPT	5 Gallon Pail Adapter, Drum Connector	1 5/8"	16 1/2"	Tube End	3/4"	33"	FDA Compliant 21 CFR 174.5; FDA Compliant 21 CFR 177.1520; FDA Compliant 21 CFR 178.2010; FDA Compliant 21 CFR 178.3297; FDA Compliant 21 CFR 178.3400	White	0000000	00000
C	15	55	8,800	40°	120°	2 NPT	Drum Connector	1 1/2"	36"	Tube End	3/4"	32 1/2"	FDA Compliant 21 CFR 174.5; FDA Compliant 21 CFR 177.1520; FDA Compliant 21 CFR 178.2010; FDA Compliant 21 CFR 178.3297; FDA Compliant 21 CFR 178.3400	Black, Blue, Yellow	00000000	00000
D	15	275	8,800	40°	120°	2 NPT	Drum Connector	1 1/2"	46 1/2"	Spout End	__	__	FDA Compliant 21 CFR 174.5; FDA Compliant 21 CFR 177.1520; FDA Compliant 21 CFR 178.2010; FDA Compliant 21 CFR 178.3297; FDA Compliant 21 CFR 178.3400	__	0000000	000000
E	15	15, 30	8,800	40°	120°	2 NPT	Drum Connector	1 1/2"	30"	Tube End	3/4"	32 1/2"	FDA Compliant 21 CFR 174.5; FDA Compliant 21 CFR 177.1520; FDA Compliant 21 CFR 178.2010; FDA Compliant 21 CFR 178.3297; FDA Compliant 21 CFR 178.3400	__	0000000	00000
E	15	55	8,800	40°	120°	2 NPT	Drum Connector	1 1/2"	36"	Tube End	3/4"	32 1/2"	FDA Compliant 21 CFR 174.5; FDA Compliant 21 CFR 177.1520; FDA Compliant 21 CFR 178.2010; FDA Compliant 21 CFR 178.3297; FDA Compliant 21 CFR 178.3400	__	0000000	00000

Drum Pumps for Oil

Use these pumps to move lubricating oil, such as motor oil. Spout is removable and can be replaced with a garden hose.

			Temp. Range, °F				Intake
Flow Rate, oz./stroke	For Container Size, gal.	Max. Viscosity, cP	Min.	Max.	For Drum Opening Size	Includes	Tube OD	Tube Lg.	Spout Type	Drum Pump Type		Each
16	15-55	316	50°	110°	2 NPT	Drum Connector	1 1/2"	37"	Removable	Plunger	0000000	000000

High-Pressure Constant-Flow-Rate Pumps without Motor for Pressure Washing

Also known as plunger pumps, these can provide pressures up to 3,000 psi. Use them for washdowns, drain jetting, and other pressurized water-spraying applications. Connect them directly to an electric motor to alter the pump speed. Pumps are gravity fed and require an elevated liquid source to fully fill the pump before turning on. Do not run dry or use with solids.

For technical drawings and 3-D models, click on a part number.

					Intake			Discharge			Overall
Max. Flow Rate, gpm	Max. Pressure, psi	Temp. Range, °F	Required hp	For NEMA Frame	Pipe Size	Thread Type	Gender	Pipe Size	Thread Type	Gender	Lg.	Wd.	Ht.	For Shaft Dia.		Each
2	2,000	-20° to 160°	2.7	56C	3/8	NPT	Female	3/8	NPT	Female	8 1/4"	8 5/8"	6 1/2"	5/8"	00000000	0000000
3	3,000	-20° to 140°	6 1/5	182TC, 184TC	1/2	NPT	Female	3/8	NPT	Female	9 1/2"	9 1/4"	7 1/8"	1 1/8"	00000000	000000
4	2,000	-20° to 140°	5 1/2	182TC, 184TC	1/2	NPT	Female	3/8	NPT	Female	9 1/2"	9 1/4"	7 1/8"	1 1/8"	00000000	000000