Burgmann EA100 Mechanical seals for home water pumps

Temperature -20℃ to +150℃
Speed ≤10m/s
Pressure ≤0.4Mpa
Material V,Q1,Q2,U2,U1,B,A,P,E,V,F,G

Type:Elastomeric bellow mechanical seal

Replacement:Burgmann EA100

Temperature:-20℃ to +150℃





• Single seal

• In-house manufactured carbon seal faces

• Three different impeller connection available 


The EA100 is the specialist for low duty applications and 

one of our historic and bestselling seals in this sector. The 

seal is easy to handle and quick to install. An incorporated 

garter spring assures a good grip of the bellows on the 

shaft and enhances satisfactory sealing performance. With 

the ability of the bellows to stretch and tighten, the EA100 

is insensitive to shaft movements. 

The seal design is available in 3 types, each with a 

different impeller connection: EA102 is with a collar. 

EA103 is without a collar. EA104 provides a different coil 

spring installation. More information on EA103 and EA104 

is available on request.

Operating range

Shaft diameter: d1 = 8 … 20 mm (0.32" … 0.78")

Pressure: p1 = 5 bar (73 PSI), vacuum…0.1 bar (1.45 PSI)

Temperature: t = –20 °C … +100 °C (–4 °F … +212 °F)

Sliding velocity: vg = 5 m/s (16 ft/s)

Axial movement: ±2.0 mm


Seal face: Carbon graphite resin impregnated (B) 

Seat: Aluminium oxide (V)

Elastomer: NBR (P) 

Metal parts: 1.4301 (F)

Recommended applications

• Water and waste water technology

• Drinking water

• Hot water circulation pumps

• Industrial pumps/equipment

• Domestic pumps

• Low duty water pumps

• Pumps for water & under floor

• heating systems

• Pumps for solar systems

Item Description

1.1 Seal face

1.2 Bellows

1.3 Garter spring 

1.4 Spring

1.5 Set screw

1.6 Collar

2 Seat

3 Corner sleeve

Product variants


As EA100 but with a collar.


As EA100 but without a collar. Please inquire.


As EA100 but with different coil spring installations.

Please inquire.

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