FIG. 9106 Double Orifice Air Relief Valve – UL Listed
Dual air release vents the accumulated small volumes of air during normal system operation. Allows venting of large volumes of air during pipeline filling. Provides protection from pipeline collapse due to vacuum. Flanged to ANSI B16.1, Class 125. Other flange types available upon request. Fusion Bonded Epoxy Coated Interior and Exterior to AWWA C550. UL Listed.