ID 63, 100 and 160. RF all-metal gate valves with patented VATRING sealing system and RF aperture. Mainly used as sector valves in storage rings of synchrotrons and particle accelerators. Customer-specified RF apertures with low RF resistance and electrical contact between the flanges in the open valve position. Available with extended or compact double acting pneumatic actuator. Bakeable to 300°C in the open and closed position. Self-locking in open and closed position. Radiation resistant.