Edwards Vacuum B42402000 QSB63 Quarter Swing Valve with DN 63 ISO-F, Manual, Stainless Steel

The QSB quarter swing butterfly valves are quick-acting, high conductance isolation valves. The valves will resist atmospheric pressure in either direction.The valves have a polished stainless steel flanged body with a fluoroelastomer 'O' ring sealed butterfly type plate and shaft. The valve-plate 'O' ring groove is vented to help maintain a stable high vacuum. The valve-shaft 'O' rings and bearings are lubricated with Fomblin grease to prevent gas bursts from behind the shaft seals.

For more information, please see Instructions