40 Gal. Tanks | McMaster-Carr

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28 Products

Double-Wall Plastic Tanks

Shown Separated

No need for separate spill-control pallets or trays—comply with EPA regulations for storing hazardous liquids with just one tank. These tanks have two walls, so if the primary compartment ruptures, the secondary one will contain the leak. It can hold 110% of the primary tank's volume and will also protect it from damage in case of impact.

Made of polyethylene, these tanks can store a broader range of chemicals than steel double-wall tanks. The plastic contains UV inhibitors so they can be used outside.

These tanks have a flat space on top where you can mount a metering pump. Because these tanks meet NSF/ANSI 61 for drinking water, you can meter chemicals stored in them into your drinking water system.

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

Polyethylene Plastic
Cap., gal.	Wd.	Dp.	Ht.	Primary Compartment Opening (No. of)	Secondary Compartment Opening (No. of)	Color	Max. Temp., °F	Specifications Met	Includes		Each
40	20"	20"	38"	8" Fill Opening Dia. (1) 3/8" Opening Dia. (1) 2 NPT Female Opening (2)	1 NPT Female Opening (1)	Blue	130°	EPA 40 CFR 264.175 NSF/ANSI 61	Vented Fill Cap	0000000	000000000

Food Industry Stainless Steel Drums

In addition to being corrosion resistant, these drums have smooth, welded seams to prevent food and chemicals from collecting in crevices.

Drums with a reinforced top rim are strengthened with a rod.

Open Head with Handles—Reinforced Top Rim

Drums								Loose-Fitting Lids		Tight-Fitting Lids with Leverlock Closing Ring
Capacity, gal.	Dia.	Ht.	Bottom ID	Gauge	Weight Capacity, lbs.		Each		Each		Each
304 Stainless Steel
40	21 3/4"	30"	20"	16	350	0000000	000000000	0000000	0000000	0000000	0000000

Sanitary Stainless Steel Drums

Store food, beverage, and pharmaceutical products in these drums, which have a sanitary design. Smooth, welded seams and a polished, seamless interior prevent product buildup and bacteria growth. Their silicone seal is FDA compliant for direct contact with food. Because they’re made of 316 stainless steel, these drums are also corrosion resistant.

To help you clean around and underneath these drums, these drums have a raised bottom. They’re also stackable to save space in your facility.

Open Head Drums with Leverlock Closing Ring and Lid with No Openings

Drum

316 Stainless Steel
Capacity, gal.	Diameter	Height	Bottom ID	Gauge	Weight Capacity	Seal Material	Closing Ring Material	Space Saving Features	Specifications Met		Each
40	19 5/8"	30 7/8"	17 1/2"	18	Not Rated	Silicone Rubber	304 Stainless Steel	Stackable	FDA Compliant 21 CFR 177.2600	00000000	000000000

Replacement Lids

Lid

316 Stainless Steel Lid with No Openings
For Drum Capacity, gal.	Gauge	Seal Material		Each
40	18	Silicone Rubber	00000000	0000000

Replacement Lid Seals

Lid Seal

For Drum Capacity, gal.	Seal Material		Each
40	Silicone Rubber	00000000	0000000

Replacement Closing Rings

Closing Ring

304 Stainless Steel Leverlock Closing Ring
For Drum Capacity, gal.		Each
40	00000000	0000000

Fiber Drums

Store dry materials in these lightweight drums.

Round with Leverlock Closing Ring and Steel Lid with No Openings

Fiber
Capacity, gal.	Weight Capacity, lbs.	Dia.	Ht.	Bottom ID	Color	Rim Material	Closing Ring Material	Max. Temp.	Space Saving Features		Each
40	300	20 1/2"	31"	20"	Beige	Galvanized Steel	Steel	Not Rated	Stackable	000000	000000

Round with Fiber Lid with No Openings

Fiber
Capacity, gal.	Weight Capacity, lbs.	Dia.	Ht.	Bottom ID	Color	Max. Temp.	Space Saving Features		Each
40	225	16"	48"	15 1/2"	Beige	Not Rated	Stackable	00000000	000000

Plastic Spill-Control Pallets

Ramp For Style B

These pallets have removable grating for easy cleaning.

Style B have optional connectors (sold separately) that allow you to connect multiple pallets. Use two connectors per side.

Pallets
									Max. Fork					Ramps
Style	For No. of 55-Gal. Drums	Cap., gal.	Weight Cap., lbs.	Lg.	Wd.	Ht.	Color	No. of Entry Points for Forklifts	Wd.	Ht.	Space Saving Features		Each	Weight Cap., lbs.		Each
Polyethylene Plastic
B	4	40	6,000	49"	48"	6 1/2"	Yellow	4	6 31/32"	1"	Stackable	00000000	0000000	1,000	00000000	0000000

Black Polyethylene Plastic Connectors for Style B (2/Pkg.)

00000000

Pkg.

000000

ASME-Code Expansion Tanks for Water

End View

Manufactured in accordance with ASME BPVC.VIII.1, these tanks accommodate the expansion of heated water and provide a cushion of compressed air in closed water-heating systems. They prevent water loss by eliminating the need to expel hot water from systems during each heating cycle.

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

						Tank End Connection Pipe Size		Tank Side Connection Pipe Size
Capacity, gal.	Dia.	Overall Lg.	Lg. (A)	Lg. (B)	Lg. (C)	(E1)	(E2)	(S1)	(S2)	Pipe Connection Thread Type	Pipe Connection Gender	Wall Gauge, ga.	Max. Temp., °F	Max. Pressure, psi	Expansion Tank Type		Each
Gray-Painted Steel
40	14"	64 3/8"	8 3/8"	46 1/4"	10"	1/2	1/2	1 1/2	1 1/2	NPT	Female	12	450°	150	Bladderless	00000000	0000000

Expansion Tanks for Water

Use these tanks to accommodate the expansion of heated water and provide a cushion of compressed air in closed water-heating systems. They prevent water loss by eliminating the need to expel hot water from systems during each heating cycle.

Galvanized steel tanks are hot-dipped for maximum corrosion resistance.

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

Galvanized Steel

						Tank End Connection Pipe Size			Tank Side Connection Pipe Size
Capacity, gal.	Dia.	Overall Lg.	Lg. (A)	Lg. (B)	Lg. (C)	(E1)	(E2)	(E3)	(S1)	(S2)	(S3)	Pipe Connection Thread Type	Pipe Connection Gender	Wall Gauge, ga.	Max. Temp., °F	Max. Pressure, psi	Expansion Tank Type		Each
40	14"	63"	4"	26"	8 13/16"	1/2	1/2	2	1 1/4	1/2	1/2	NPT	Female	14	450°	75	Bladderless	0000000	0000000

Pressure-Rated Water Tanks

End View

These tanks can be used as water heaters when used with a heat source, such as an immersion heater. Also known as boiler tanks, they are designed to handle water pressure changes. Use them with hot or cold water. All are galvanized inside and outside for corrosion resistance.

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

							Tank End Connection Pipe Size		Tank Side Connection Pipe Size
Capacity, gal.	Dia.	Overall Lg.	Lg. (A)	Lg. (B)	Lg. (C)	Lg. (D)	(E1)	(E2)	(S1)	(S2)	(S3)	(S4)	(S5)	Pipe Connection Thread Type	Pipe Connection Gender	Wall Gauge, ga.	Max. Temp., °F	Max. Pressure, psi		Each
Galvanized Steel
40	14"	60"	18"	6"	8"	6"	1	1	1	1	1	1 1/4	1/2	NPT	Female	14	450°	75	0000000	0000000

Hydraulic Tanks

Store fluids for a hydraulic power unit or circulating-oil system. Choose a tank capacity about three times greater than your requirement to allow for heat dissipation. Tanks with only a drain connection require you to drill your own inlet/outlet connection and add pipe suction flanges (sold separately). Flanges seal pipes that pass through the top plate of your tank.

Dual chamber tanks have a divider that allows particles to settle on one side before fluid is returned to your line.

Breather vents prevent excess pressure in tanks and allow a free flow of air. To install the breather vent to Style C tanks, drill a hole in the tank.

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

Replacement Cover

Replacement Gasket

		O'all			Drain Connection— NPT			Mounting
Style	Cap., gal.	Lg.	Wd.	Ht.	Pipe Size	Dash Size	No. of Ports	Fasteners Included	No. of Holes	Hole Dia.	Max. Temp., °F		Each
Steel Tanks
Dual Chamber
C	40	38 1/4"	24"	14"	3/4	12	1	No	4	7/16"	212°	00000000	0000000

Replacement Buna-N Rubber Gasket for 62945K14, 62945K15, and 62945K34	00000000	Each	00000
Replacement Steel Cover for 62945K14, 62945K15, and 62945K34	00000000	Each	00000

Pipe Suction Flanges

				Mounting Hole
For Pipe Size	For Cutout Dia.	Material	Mounting Fasteners Included	Ctr.-to-Ctr.	Lg.	Wd.	Includes		Each
1/2	4 5/16"	Steel	Yes	4 1/4"	7/8"	7/16"	Top Plate, Bottom Plate, Gasket, Washer	00000000	000000
3/4	4 5/16"	Steel	Yes	4 1/4"	7/8"	7/16"	Top Plate, Bottom Plate, Gasket, Washer	00000000	00000
1 1/4	4 5/16"	Steel	Yes	4 1/4"	7/8"	7/16"	Top Plate, Bottom Plate, Gasket, Washer	00000000	00000
1 1/2	4 5/16"	Steel	Yes	4 1/4"	7/8"	7/16"	Top Plate, Bottom Plate, Gasket, Washer	00000000	00000
2	4 5/16"	Steel	Yes	4 1/4"	7/8"	7/16"	Top Plate, Bottom Plate, Gasket, Washer	00000000	00000

Breather Vents

					Cap
Pipe Size	Thread Type	Gender	Material	Removes Particle Size Down To, microns	Dia.	Ht.	O'all Ht.	Hex Wd.		Each
1/2	NPT	Male	Plastic	40	1 5/8"	3/4"	1 7/8"	1"	00000000	00000
3/4	NPT	Male	Plastic	40	1 5/8"	3/4"	1 7/8"	1 1/8"	00000000	0000

Flange-Mount Breather Vents

	Material						Strainer			Mounting Hole
For Cutout Dia.	Cap	Strainer	Gasket	Removes Particle Size Down To, microns	Cap Dia.	Flange Dia.	Dia.	Ht.	Mounting Fasteners Included	Lg.	Wd.	Bolt Circle Dia.		Each
2 1/8"	Zinc-Plated Steel	Plastic	Rubber	40	3"	3 1/4"	1 7/8"	3 13/16"	Yes	1/4"	3/16"	2 7/8"	00000000	000000

Level and Temperature Indicators for Styles B and C Tanks

Nylon Plastic With Steel Guard

For Hole
Dia.	No. of	Connection Ctr.-to-Ctr.	Overall Ht.	Window Ht.	Body Wd.	For Max. Tank Wall Thick.	Max. Pressure	Temp. Range	Thermometer Temp. Range	Material	Guard Material	Window Material		Each
1/2"	2	5"	6 3/8"	3 7/8"	13/16"	1/2"	50 psi @ 70° F	-40° F to 210° F	0° F to 220° F	Nylon Plastic	Steel	Nylon Plastic	0000000	000000