EAGLEBURGMANN
18
BT-FH
The BT-FH is a seal for demanding applications where
operating conditions in the pump require machined metal
parts for the mechanical seal. The seals are available
in a full range of diameters from 10 to 100 mm and
在标准diameters specifically for chemical
applications.
Features
• Single pusher-type seal
• Unbalanced
• Conical spring
• Dependent on direction of rotation
Operating range
(see note on page 28)
Shaft diameter: d
1
= 10 … 100 mm (0.39" … 3.94")
Pressure: p
1
* = 12 (16) bar (174 (232) PSI)
Temperature: t* = -35 °C… +200 °C (-31 °F … +392 °F)
Sliding velocity: v
g
= 15 m/s (49 ft/s)
* Dependent on medium, size and material
材料
(see fold-out page 28)
Seal face: Aluminium oxide (V), Silicon carbide (Q1),
Tungsten carbide (U1)
Seat: Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B),
Silicon carbide (Q1), Tungsten carbide (U1)
Elastomers: NBR (P), EPDM (E), FKM (V), FFKM (K)
Metal parts: CrNiMo steel 1.4401 (G)
Recommended applications
• Chemical industry
• Building services industry
• Centrifugal pumps
• Clean water pumps
Certificates
• KTW
• W270
• ACS
• WRAS
• NSF
• DM 174/04
• FDA
Item
Description
1
Seal face
2
Stationary seat
3, 3a, 3b
O-Ring
4
Spring
5
Collar
d
3
d
4 min
d
6
H11
d
1
h6
d
7
H8
l
5
l
6
l
4
l
3
(l
3
C)
5
3b
l
1
(l
1
C)
±0,5
3
1
2
3a
4
20°
R/L
Seat alternatives
Seat ring can be supplied with short tail or with pin to block the seat and prevent seat rotation.
PF L
PF L1
d
6
d
7
l
5
l
6
l
4
3a
2
20°
d
6
d
7
l
5
l
6
l
4
3a
2
20°
5
l
7
0
+0,5
d
8
2
Stationary seat
3a O-Ring
2
Stationary seat
3a O-Ring