SLURRYTUFF Ezi-Vac Air/Vacuum Release Valve 10" ANSI B16.5 CL300 mounting flanges Low Temp CS Float: HDPE Seal: Low Temp Viton Seal Retaining Ring and Seat: HDPE Working Temp: 5 C to 70 C 16,100 m3/hr exhaust at delta P of 13.8 kPa 15,200 m3/hr vacuum relief at delta P of 13.8 kPa Max  Pressure: 5100 kP -