We offer a variety of Safety Drum Vents for every application. See details outlined below:

	2" DRUM VENT (Model # 522 / # F522) 2" Male NPS threads, mounts vertically into 2" bung. Automatic Pressure Relief at 5 - 8 psig, and manual vacuum relief. Flame arrester to prevent propagation of fire through vent. Available in Brass with Aluminum plate flash arrester (Model #522), or in all Stainless Steel(Model # F522). Both Models are Factory Mutual Approved.
	3/4" DRUM VENT (Model # 525) 3/4" Male NPT threads, mounts into 3/4" bung when the 2" opening is not available) Perforated-metal flash arrester with a protective hood to shield dust and dirt from entering drum.
	DRUM VENT ADAPTER (Model # 526) Mounts into 3/4" bung, and provides a 2" connection. Ideal for providing an elbow-type mount for Model # 522. Especially recommended to keep flame arrester plates above liquid level.
	2" HORIZONTAL DRUM VENT (Model # 5522 / # F5522) Especially for horizontal drum with 2" opening at the end. Automatic pressure relief at approximately 5 psig, and manual vacuum relief. In case of external pressure, the fusible emergency relief plug melts, venting pressure and preventing drum rupture. Perforated-metal flash arrester prevents accidental ignition of vapors within the drum. Available in Brass (Model # 5522) and Stainless Steel (Model # F5522). Both Models are Factory Mutual Approved.
	2" COMBINATION DRUM VENT / FILL UNIT(Model # 5000 / # F5000) Mounts into 2" bung on standard drums. Provides automatic vacuum relief at approximately 2" W.C., facilitating liquid flow during dispensing, and the automatic pressure relief valve opens at 5 - 6 psig. Removable cap assembly permits perforated-metal flash arresterto remain threaded for safety during filling process. Sturdy chain prevents loss of cap. Available in Brass (Model # 5000) and Stainless Steel (Model # F5000). Both Models are Factory Mutual Approved.