... mechanical seal (sealing, seal)Type 205, 206, 207 are axial double, multi-spring, liquid outside flowing, driven by bush type seals ... -balance type; 206 is atmosphere side balance type; 207 is double balance type. Standard HG5-748-78 (called standard 78) and ... or angle touch bearing. 205CT, 206CT, 207CT are added a thermoregulator to 205, 206, 207. It can be used in -40 ...