Crispin Air Release, Air & Vacuum and Universal Combination Valves meet or exceed ANSI/AWWA C512 Standards.
abbreviations used for product Compliance
The Universal Sewer Air Release Valve performs the function of both the Air and Vacuum and Pressure Sewer Valves. The US Series is the high capacity version of the USL Series, and is available in single or dual body styles.
NOMINAL INSIDE DIAMETER: 2”-6” Sizes Available (NPT or ANSI flanging)