The Series 70S Wafer style is a heavy-duty cartridge seated butterfly valve compatible with ANSI 125/150 weld-neck, slip-on, and threaded flange standards. 2” – 12” valves are fully rated to 200 psi, bi-directional , dead-end service. Valves with undercut discs to 50 psi are also available through the size range. All series 705 vales, regardless of the rated working pressure, are vacuum rated to 29.29” of Mercury Gauge (0 Micron).