Cartridge seal R-MS-single mechanical seal, unloaded, independent of the direction of shaft rotation, multi-spring. Designed for sealing the shafts of agitators, reactors, mixers in dry-running conditions, does not require the arrangement of auxiliary systems. Environment: slightly aggressive, environmentally friendly substances. Made of materials in accordance with FDA. Temperature: -20°~ 180° Pressure: ≤0.6 MPa Speed: ≤2.5 m/sec Moving ring: Carbon / SIC Fixed ring: SIC. Bellows: NBR / EPDM / VITON. Spring: SS316. Metal parts: SS316.