Mechanical Seal BT-PN

Type in the Iseal : ISBT-PN

Shaft diameter: d1* = 8 … 40 mm (0.31″ … 1.57″)
Pressure: p1** = 12 bar (174 PSI),
vacuum … 0.5 bar (7.45 PSI)
Temperature: t = -20 °C … +120 °C (-4 °F … +248 °F)
Sliding velocity: vg = 10 m/s (33 ft/s)

Item	Description
1	Seal face
2	Stationary seat
3	Bellows
3a	Gasket
4	Spring
5	Ring
5a	Drive ring
5b	Collar

Advantages

The BT-PN is a large series mechanical seal with a simple yet effective design that is easy to assemble. The special spring arrangement allows a short axial installation length. This advantage is combined with an increased working pressure capability of up to 12 bar (174 PSI). The spring is free from torque transmission

Features

Rubber bellows mechanical seals
Unbalanced
Single spring
Independent of direction of rotation

Materials

Seal face:
Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B), Silicon carbide (Q1, Q6)
Seat:
Aluminium oxide (V), Steatite (X), Silicon carbide (Q1, Q6, Q7)
Elastomers:
NBR (P), FKM (V), EPDM (E)
Metal parts: CrNi steel 1.4301 (F), CrNiMo steel 1.4401 (G)

Recommended applications