... :Equivalent to Burgmann BT-PN,Website:http://www.mechanicalsealsenactus.com,John Crane Type 106Single and dual sealsShort axial installation lengthMaterial approvals ... ), Carbon graphite solid (B3), Silicon carbide (Q1, Q6)Seat: Steatite (X), Aluminium oxide (V, V1), Silicon carbide (Q1, Q6)Elastomer: NBR ...