BT-C5.KU

Item Description
1 Seal face
2 Stationary seat
3, 3a O-Ring
4 Spring
5 Collar
5a Set screw
5b Ring
5c Locking ring

BT-C5

Features

  • Single pusher-type seal
  • Unbalanced, short length (KU)
  • Balanced, short length (KB)
  • Multiple springs
  • Independent of direction of rotation

Advantages

The BT-C5 is available in many material combinations with various application opportunities, especially in chemical applications. Torque transmission through set screws. Dimensions according to EN 12756, short length l1K.

Operating range

Shaft diameter:
d1 = 18 … 100 mm (0.71" … 3.94")
Pressure:
Unbalanced type BT-C5.KU
p1* = 12 (16) bar (174 (232) PSI)
Balanced type BT-C5.KB
p1* = 25 (40) bar (360 (580) PSI)
Temperature:
t* = -35 °C … +180 °C (-31 °F … +356 °F)
Sliding velocity: vg = 20 m/s (66 ft/s)

* Dependent on medium, size and material

Materials

Seal face: Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B)
Seat: Aluminium oxide (V), Silicon carbide (Q1)
Elastomers:
NBR (P), EPDM (E), FKM (V), FFKM (K)
Metal parts: CrNiMo steel (G)

Standards and approvals

  • KTW
  • W270
  • ACS
  • WRAS
  • NSF
  • FDA
  • DM 174/04

Notes

Seat ring of alternative seats can be supplied with short tail or with pin to block the seat and prevent seat rotation.



Product variants

BT-C5.KB

BT-C5.KB is the balanced version of the BT-C5.KU. Suitable for a higher pressure range. Dimensions according to EN 12756, short length l1KB.

Item Description
1 Seal face
2 Stationary seat
3, 3a O-Ring
4 Spring
5 Collar
5a Set screw
5b Ring
5c Locking ring
BT-C56.KU

Product variant with PTFE secondary seal elements instead of elastomers. Mainly used in the chemical industry and for corrosive media.

Item Description
1 Seal face
2 Stationary seat
3 Wedge gasket (PTFE)
3a Gasket (PTFE)
BT-C56.KB

Product variant with PTFE secondary seal elements instead of elastomers. Mainly used in the chemical industry and for corrosive media.

Item Description
1 Seal face
2 Stationary seat
3 Wedge gasket (PTFE)
3a Gasket (PTFE)
4 Spring
5 Collar
5a Set screw
5b Ring
5c Locking ring
True