BT-FH Balanced

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BT-FH Balanced

BT-FH Balanced
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Item Description
1 Seal face
1.2 Collar
1.3 O-Ring
1.4 O-RING
1.5 Spring
2.1 Stationary Seat
2.2 O-Ring

BT-FH Balanced

Features

  • Single seal
  • For plain shafts
  • Unbalanced
  • Conical spring rotating
  • Dependent on direction of rotation
  • Torque transmission via conical spring

Advantages

  • Universal application opportunities
  • Reliable design
  • High flexibility due to extended selection of materials
  • No damage of the shaft by set screws
  • Dimensions can be customized
  • Alternative seats available

Operating range

Shaft diameter:
d1 = 16 … 70 mm (0.63" … 2.76")
Pressure: p1* = 25 bar (363 PSI)
Temperature:
t* = -35 °C … +180 °C (-31 °F … +356 °F)
Sliding velocity: vg = 15 m/s (50 ft/s)

* Dependent on medium, size and material

Materials

Seal face: Al-Oxide (V), Silicon carbide (Q1, Q6, Q7),Tungsten carbide (U)
Seat:Carbon graphite antimony impregnated (A),Carbon graphite resin impregnated (B), Carbon graphit, full carbon (B3), Silicon carbide (Q1, Q6, Q7), Tungsten carbide (U), PTFE glass fiber reinforced (Y1), PTFE carbon reinforced (Y2)
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-FHC

Items and designations are the same as for BT-FH, but with shorter installation length l3C (see dimension table). Same installation length as the BT-RN.

Item description

1.1 Seal face
1.2 Collar
1.3 O-Ring
1.4 O-Ring
1.5 Spring
2.1 Stationary seat
2.2 O-Ring
BT-FH.NU

BT-FH.NU

Items and designations are the same as for BT-FH, but with installation length l1N according to EN 12756 (Normal, Unbalanced).

Item description

1.1 Seal face
1.2 Collar
1.3 O-Ring
1.4 O-Ring
1.5 Spring
2.1 Stationary seat
2.2 O-Ring
BT-FH.KU

BT-FH.KU

Items and designations are the same as for BT-FH, but with installation length l1K according to EN 12756 (Short, Unbalanced).

Item description

1.1 Seal face
1.2 Collar
1.3 O-Ring
1.4 O-Ring
1.5 Spring
2.1 Stationary seat
2.2 O-Ring

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