*Typical dimensions are listed. Data contained herein can be altered to accommodate design changes and changes to increase performance. Information on this page is the sole property of L6 Inc. d/b/a Total Valve Systems.
Vent Valve Model 4915 can be used as check valve, vacuum breaker or a low-pressure relief valve. These valves are lightweight and are designed to easily insert between flanges. Minimum settings are 2 ounces for both vacuum and pressure.