Girard Equipment, Inc.

Girard - Model DOT 407 Vent, 3″ - NPS ConnectionPressure Relief Vents Brochure

Our 3″ DOT 407 Vents allow you to upgrade virtually any MC 307 or MC 312 tank to DOT 407 or DOT 412 venting. All the benefits of the 400 Series Vents without expensive hot-work. Flow rates are slightly less than our standard DOT 407 Vents, but are more than sufficient for most tanks. See the table below for specific flow rates. The stainless ...