Downpipe Check Valve

• Prevents siphoning or backflow of liquid through a downpipe installed in tank level gauging applications
• Utilizes a specially designed float pin that rises up to seal the valve shut when liquid enters from the downpipe through the bottom of the unit
• The advantage of a float check is that it doesn’t create a pressure drop that would affect the level gauge reading (Spring-loaded check valves can impact the accuracy of a downpipe or bubbler system if installed at the tank entry point)

NOTE: Not recommended for use with heavy diesel fuel oil or other high viscosity liquids. Installation in conjunction with a gate valve will permit removal of check valve for inspection and cleaning. (We recommend cleaning the check valve once per year to ensure reliability.)

Download 6563 Downpipe Check Valve Data Sheet_1200-30