Bung Vents | McMaster-Carr

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Flame Arrester Material

304 Stainless Steel

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7 Products

Drum Vents


Style A	Style B	Style C	Style D	Style E

Prevent drum failure by using these vents to release pressure and vacuum buildup caused by draining liquids and sudden temperature changes. In case of fire, a flame arrester prevents flashback into the drum.

Style D—Style D has a removable cap so it can be used as a fill opening.

Style E—Style E comes with two carbon filters. The filter traps 99% of vapors.

		Activation
	Style	Pressure Relief	Vacuum Relief	Seal Material	Flame Arrester Material	Pipe Size	Gender	Opening Pressure Range, psi	Certification		Each
For Horizontal Drums







				316 Stainless Steel

				A	Automatic	Manual	Fluoroelastomer	304 Stainless Steel	2 NPT	Male	3 to 8	FM Approved	0000000	0000000




						Brass

						A	Automatic	Manual	Buna-N	Brass	2 NPT	Male	3 to 8	FM Approved	0000000	00000


						For Vertical Drums







										Polyethylene

										B	Automatic	Automatic	Buna-N	304 Stainless Steel	2 NPT	Male	3 to 8	FM Approved	0000000	000000


										B	Automatic	Automatic	Buna-N	Zinc-Plated Steel	2 NPT	Male	3 to 8	FM Approved	0000000	00000




												Brass

												C	Automatic	Automatic	Buna-N	Brass	2 NPT	Male	3 to 8	FM Approved	000000	000000


												D	Automatic	Automatic	Buna-N	Brass	2 NPT	Male	3 to 8	FM Approved	0000000	000000
												E	Automatic	Automatic	Buna-N	Brass	2 NPT	Male	3 to 8	FM Approved	0000000	000000