Type：Elastomeric bellow mechanical seal
Replacement：Burgmann BT-PNT,Flowserve 16
Temperature：-20℃ to +120℃
Pressure：≤0.5-10Mpa
Speed：≤10m/s
Material：V,Q1,Q2,U2,U1,B,A,P,E,V,F,G
The main design features of the BT-PNT are the metal
joint torque transmission together with the rubber bellows.
This prevents torsional effects on the bellows. The shaft is
protected across the entire seal length. Easy to assemble,
the BT-PNT guarantees a long service life due to good
product turbulence.
Features
• Rubber bellows mechanical seal
• Unbalanced
• Single spring
• Independent of direction of rotation
Operating range
Shaft diameter: d1 = 15mm, 5/8", 3/4", 1"
Pressure: p1*= 12 bar (174 PSI)
Temperature: t* = -20 °C…+120 °C (-4 °F…+248 °F)
Sliding velocity: vg = 10m/s (33 ft/s)
* Dependent on medium, size and material
Materials
Seal face: Carbon graphite resin impregnated (B), Carbon
graphite, full carbon (B3), Silicon carbide (Q1)
Seat: Aluminium oxide (V), Silicon carbide (Q1)
Elastomers: NBR (P), EPDM (E), FKM (V)
Metal parts: CrNi steel 1.4301 (F), CrNiMo steel 1.4401 (G)
Recommended applications
• Water and waste water technology
• Pool and spa applications
• Household appliances
• Swimming pool pumps
• Cold water pumps
• Pumps for home and garden
Certificates
• KTW / UBA
• W270
• ACS
• WRAS
• NSF
• FDA
• DM 174/04
Item Description
1 Seal face
2 Stationary seat
3 Bellows
3a Gasket
4 Spring
5 Driver
5a Drive collar
