Mechanical Seal Burgmann For circulating pump

Temperature -20 to +150℃
Speed ≤10m/s
Pressure ≤1Mpa
Material B,A1,Q1,Q2,U2,P,E,N,V,F,G,Alfa

The seat ring of the spare seat may be provided with a short tail or pin to block the seat and prevent seat rotation. BT-FH is a kind of seal, which is suitable for the application of machining metal parts for mechanical seal under the working conditions of pump. Seals range in diameter from 10 mm to 100 mm and have standard diameters specifically designed for chemical applications.This kinds of seal is featured of Single pusher-type seal, Unbalanced, Conical spring and Dependent on direction of rotation. We suggest that the o-ring seal we produced, are suitable for the industry, such as Chemical industry, Building services industry, Centrifugal pumps, Clean water pumps, etc.

Type:O-Ring Mechanical Seal    

Replacement:BURGMANN BT-FH,AES T06D,Roten UNITEN 5K    

Temperature:-20 to +150℃    




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 100mm and    

in the standard diameters specifically for chemical     



• Single pusher-type seal    

• Unbalanced    

• Conical spring    

• Dependent on direction of rotation    

Operating range     

Shaft diameter: d1 = 10…100mm (0.39"…3.94")    

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

Temperature: t* = -35 °C… +200 °C (-31 °F…+392 °F)    

Sliding velocity: vg = 15m/s (49 ft/s)    

* Dependent on medium, size and material    

Materials (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    


• KTW / UBA    

• 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    

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