Plastic Drum Caps | McMaster-Carr

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	Material Material

Plastic

Rubber

	Pipe Size Pipe Size

3/4

	Thread Type Thread Type

NPS

Metric

	Drum Plug Type Drum Plug Type

Standard

Pressure Relief

Vacuum Relief

	Color Color

	White		Gray
	Clear		Pink
	Semi- Clear		Black

	Maximum Temperature Maximum Temperature

	System of Measurement System of Measurement

Inch

Metric

	For Pipe Size For Pipe Size

3/4

	For Drum Capacity For Drum Capacity

30 gal.

55 gal.

	Thickness Thickness

4 mil

8 mil

0.04"

	Diameter Diameter

	For Drum Style For Drum Style

Closed Head

Open Head

	Specifications Met Specifications Met

C-UL Listed

UL Listed

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36 Products

Drum Plugs

For installation and removal of these plugs, use drum-plug wrenches.

Style D have a M64 thread size, which is also known as Buttress threads.

Drum-plug caps (sold separately) fit over drum plugs to provide dust protection as well as evidence of tampering. They have a breakaway seal and are for one-time use.

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

Polyethylene Plastic

Drum Plugs												Crimp-On Drum Plug Caps			Crimping Tools for Drum Plug Caps
Style	Drum Plug Type	Color	Seal Material	Pipe/Thread Size	Gender	Max. Temp., °F	Opening Pressure Range	Features	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.		Each
A	Standard	White	__	3/4 NPS	Male	125°	__	__	5	0000000	00000	10	0000000	00000	0000000	0000000
A	Pressure Relief, Vacuum Relief	White	__	3/4 NPS	Male	125°	1 psi-4 psi	Vent	5	0000000	00000	10	0000000	0000	0000000	000000
B	Standard	White	__	2 NPS	Male	125°	__	__	5	0000000	00000	10	0000000	00000	0000000	000000
B	Pressure Relief, Vacuum Relief	White	EPDM Rubber	2 NPS	Male	125°	1 psi-4 psi	Vent	5	0000000	00000	10	0000000	00000	0000000	000000
C	Standard	White	__	2 NPS	Male	125°	__	3/4 NPS Faucet Knockout	5	0000000	00000	10	0000000	00000	0000000	000000
D	Standard	White	EPDM Rubber	M64 Metric	Male	125°	__	3/4 NPS Faucet Knockout	5	0000000	00000	10	0000000	00000	0000000	000000

Polypropylene Plastic

Drum Plugs												Crimp-On Drum Plug Caps			Crimping Tools for Drum Plug Caps
Style	Drum Plug Type	Color	Seal Material	Pipe/Thread Size	Gender	Max. Temp., °F	Opening Pressure Range	Features	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.		Each
A	Standard	Gray	__	3/4 NPS	Male	125°	__	__	5	0000000	00000	10	0000000	00000	0000000	0000000
A	Pressure Relief, Vacuum Relief	Gray	__	3/4 NPS	Male	125°	1 psi-4 psi	Vent	5	0000000	00000	10	0000000	0000	0000000	000000
B	Standard	Gray	__	2 NPS	Male	125°	__	__	5	0000000	00000	10	0000000	00000	0000000	000000
B	Pressure Relief, Vacuum Relief	White	EPDM Rubber	2 NPS	Male	125°	1 psi-4 psi	Vent	5	0000000	00000	10	0000000	00000	0000000	000000
C	Standard	Gray	__	2 NPS	Male	125°	__	3/4 NPS Faucet Knockout	5	0000000	00000	10	0000000	00000	0000000	000000
D	Standard	White	__	M64 Metric	Male	125°	__	3/4 NPS Faucet Knockout	5	0000000	00000	10	0000000	00000	0000000	000000

Drum Plug Gaskets

Add a gasket or replace one that's worn out to ensure a tight seal.

For 3/4 Pipe Size
Material	Max. Temp., °F	Pkg. Qty.		Pkg.
Polyethylene Plastic	350°	50	0000000	000000
Buna-N Rubber	450°	100	0000000	00000
EPDM Rubber	450°	100	0000000	00000
For 2 Pipe Size
Polyethylene Plastic	350°	50	0000000	00000
Buna-N Rubber	450°	50	0000000	00000
EPDM Rubber	450°	50	0000000	00000

Dust Caps for Drums

PVC caps resist chemicals better than polyethylene caps.

PVC Plastic
For Drum Capacity, gal.	Thick., mils	Color	Max. Temp., °F	Pkg. Qty.		Pkg.
55	8	Clear	Not Rated	1	000000	00000
55	8	Semi-Clear	Not Rated	1	000000	00000
Polyethylene Plastic
55	4	Clear	175°	5	000000	00000
30	4	Clear	175°	5	000000	00000

Antistatic Dust Caps for Drums

An additive on these polyethylene caps prevents static charge from building up on the surface.

Polyethylene Plastic
For Drum Capacity, gal.	Thick., mils	Color	Max. Temp., °F	Electrical Properties	Surface Resistivity, ohms/sq.	Pkg. Qty.		Pkg.
55	4	Pink	175°	Antistatic	10¹¹	5	000000	000000
30	4	Pink	175°	Antistatic	10¹¹	5	000000	00000

Protective Drum Covers

Polyethylene Plastic

For Open-Head Drums with Nut-and-Bolt Closing Ring
For Drum Capacity, gal.	Dia.	Thick.	Color	Max. Temp., °F	Specifications Met		Each
55	23 3/8"	0.04"	Black	175°	__	0000000	00000
55	23 3/8"	0.04"	Clear	175°	__	0000000	0000
55	23 1/2"	0.04"	Gray	175°	C-UL Listed, UL Listed	0000000	00000
For Open-Head Drums
55	23 3/8"	0.04"	Gray	175°	C-UL Listed, UL Listed	0000000	00000
For Closed-Head Drums
30	18 1/2"	0.04"	Gray	175°	C-UL Listed, UL Listed	0000000	00000
55	22 5/8"	0.04"	Gray	175°	C-UL Listed, UL Listed	0000000	00000
55	22 3/4"	0.04"	Black	175°	__	0000000	0000
55	22 3/4"	0.04"	Clear	175°	__	0000000	0000

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