Conical Spring Mechanical Seal BT-FN

The BT-FN mechanical seal combines a spring-loaded ceramic seal face with traditional pusher seals, offering an economical design thanks to its punched metal parts. This versatile seal is well-suited for various applications and is particularly effective in handling light chemical media. To ensure reliable performance, it is recommended to pair hard material sliding faces with suitable elastomer O-Rings, enhancing durability and efficiency in demanding environments.

Materials
Seal face:
Steatite (X), Aluminium oxide (V), Silicon carbide (Q1, Q6), Tungsten carbide (U1)
Seat:
Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B), Silicon carbide (Q1, Q6), Tungsten carbide (U1)
Elastomers:
NBR (P), EPDM (E), FKM (V), FFKM (K)
Metal parts: CrNi steel 1.4301 (F), CrNiMo steel 1.4401 (G)

Application
Building services industry
Household appliances
Centrifugal pumps
Clean water pumps
Pumps for domestic applications and gardening

Shaft diameter
d1*= 10 … 40 mm (0.39" … 1.57")

Pressure: p1*= 12 (16) bar (174 (232) PSI)

Temperature:
t* = -35 °C… +180 °C (-31 °F … +356 °F)
Sliding velocity: vg = 15 m/s (49 ft/s)