Girard Equipment, Inc.

Girard - Model DOT 407 - Combination Pressure/Vacuum Relieving Vent Brochure

This spring-loaded, dual-acting pressure and vacuum relief vent provides much needed protection from a dangerous build-up of positive and negative forces, known as pressure and vacuum, on tank trailers transporting hazardous chemicals. Each vent is carefully assembled and tested to each customers’ exact specifications. Careful attention was ...