MB1-GAS is a Specially Designed Non-Contacting Gas Seals for cryogenic applications, thanks to its Design of Metallic Bellow Construction which eliminates the dynamic O Ring, & Can be Safely Used in most commonly used Industrial Gaseous in Liquid Form. Operating Parameters Shaft Dia.: 18 to 100mm Pressure: up to 15 Bars Temp.: -196 �°C to Ambient Speed: up to 10000 rpm Material Seal Faces: Carbon/Sic/TC Secondary Seals: FFKM/FKM/HNBR Metal Components: SS-316/Hast-C/Inconel-718