Crispin Support Valves can help solve a variety of installation and maintenance-related issues.
abbreviations used for product Compliance
The Crispin Negative Pressure Valve is designed to release air automatically from pipeline siphons. With peripherally guided floats, it meets all ANSI/AWWA C-512 standards, and is available in sizes ½” thru 4”.
NOMINAL INSIDE DIAMETER: 1/2”-4” Sizes Available