Multi-spring balanced, rotating seal AESSEAL with a wedge secondary sealing element made of PTFE M04-A-VP-04Z0 paired with a fixed part S010-DVQ-0380. The seal on the stepped shaft is the movable part by 43 mm, the fixed part by 38 mm. Available for shaft diameters of 19.1...101.60 mm. They are used in difficult working conditions in the chemical and petrochemical industries. Analog of John Crane T109B, John Crane T9B, BTS R-109B.