Hydraulic pump mechanical seal manufacturer

Temperature -20℃ to +120℃
Speed ≤5m/s
Pressure ≤0.6Mpa
Material V,Q1,Q2,U2,U1,B,A,P,E,V,F,G
Tags:

Type:Elastomeric Bellow Mechanical Seal

Replacement:Burgmann BT-PN

Temperature:-20℃ to +120℃

Pressure:≤0.6Mpa

Speed:≤5m/s

Material:V,Q1,Q2,U2,U1,B,A,P,E,V,F,G

The BT-PN is a large series mechanical seal with a simple 

yet effective design that is easy to assemble. The special 

spring arrangement allows a short axial installation length. 

This advantage is combined with an increased working 

pressure capability of up to 12 bar (174 PSI). The spring is 

free from torque transmission.

Features

• Rubber bellows mechanical seals

• Unbalanced

• Single spring

• Independent of direction of rotation

Operating range 

Shaft diameter: d1* = 8…40mm (0.31"…1.57")

Pressure: p1** = 12 bar (174 PSI),

vacuum…0.5 bar (7.45 PSI)

Temperature: t** = -20 °C…+120 °C (-4 °F…+248 °F)

Sliding velocity: vg = 10m/s (33 ft/s)

Operating limits depend on p·vg factor

* Other diameters upon request

** Dependent on medium, size and material

Materials

Seal face: Carbon graphite antimony impregnated (A), 

Carbon graphite resin impregnated (B), 

Silicon carbide (Q1, Q6)

Seat: Aluminium oxide (V), Steatite (X), 

Silicon carbide (Q1, Q6, Q7)

Elastomers: NBR (P), FKM (V), EPDM (E) 

Metal parts: CrNi steel 1.4301 (F), CrNiMosteel 1.4401 (G)

Certificates

• KTW / UBA

• W270

• ACS

• WRAS

• NSF

• FDA

• DM 174/04

Recommended applications

• Pool and spa applications

• Household appliances

• Water and waste water technology

• Food and beverage industry

• Submersible oil filled motors (4" / 6")

• Submersible pumps, back-to-back installation

• Peripheral pumps for industrial applications

• Domestic and garden pumps

• Coffee machines

• Shower pumps

Item Description

1 Seal face

2 Stationary seat

3 Bellows

3a Gasket

4 Spring

5 Ring

5a Drive ring

5b Collar


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