Burgmann Type MG1 Shaft Seal For Water Pump

Temperature -20℃ to +120℃
Pressure ≤1.2Mpa
Speed ≤10m/s
Material V,Q1,Q2,U2,U1,B,A,P,E,V,F,G
Tags:

Type:Elastomeric bellow mechanical seal,Suit for Grundfos,Hilge Pumps

Replacement:Burgmann MG1/12/13/S20,AES B02/B012/B013,Vulcan 19/192/193,Roten L3/L3K/L3N,Flowserve 190/192/193,Latty T700/T712,T713

Temperature:-20℃ to +120℃

Pressure:≤1.2Mpa

Speed:≤10m/s

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

Features

• For plain shafts

• Elastomer bellows rotating

• Unbalanced

• Independent of direction of rotation

• Single and dual seal 

Advantages

• Small outer diameter of bellows support (dbmin) enables 

direct retaining ring support, or smaller spacer rings

• Optimal alignment characteristic through self-cleaning of 

disk/shaft

• Improved centering across entire pressure operating range

• No torsion on bellows

• Shaft protection over entire seal length

• Protection of seal face during installation due to special 

bellows design

• Insensitive to shaft deflections due to large axial 

movement ability

• Suitable for low-end sterile applications

• Dimension adaptions and additional seats available

Operating range 

Shaft diameter: d1 = 15 … 110 mm (0.59" … 4.33")

Pressure: p1 = 16 bar (230 PSI),

vacuum…0.5 bar (7.25 PSI), up to 1 bar (14.5 PSI) 

with seat locking

Temperature: t = –20 °C … +140 °C (–4 °F … +284 °F)

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

Axial movement: ±2.0 mm

Materials

Seal face: Carbon graphite antimony impregnated (A), 

Carbon graphite resin impregnated (B), 

Silicon carbide (Q1, eSiC-Q7), Tungsten carbide (U3) 

Seat: Silicon carbide (Q1, Q2, eSiC-Q7)), 

Tungsten carbide (U3), Special cast CrMo steel (S), 

Aluminium oxide (V)

Elastomer: NBR (P), EPDM (E), FKM (V), HNBR (X4)

Metal parts: CrNiMo steel (G), Hastelloy® C-4 (M)

Standards and approvals

• Various material approvals 

(depending on type and material combinations).

Please inquire!

• FDA

• WRAS

• KTW

• ACS

• W270

Recommended applications

• Process industry

• Chemical industry

• Pulp and paper industry

• Water and waste water technology

• Food and beverage industry

• Sugar industry

• Oil applications

• Water, waste water, slurries (up to 5 % by weight)

• Pulp (up to 4 % otro)

• Latex

• Dairies, beverages

• Sulfide slurries

• Chemicals

• Oils

• Chemical standard pumps

• Helical screw pumps

• Stock pumps

• Circulating pumps

• Submersible pumps

• Water and waste water pumps

Item Description

1.1 Seal face

1.2 Bellows

1.3 Set of springs

1.4 PEEK-PTFE disk

2 Seat (G6)

3 O-Ring or cup rubber

Notes

The eMG1 can also be used as a multiple seal in tandem 

or in a back-to-back arrangement. Installation proposals 

available upon request.

Dimension adaptations for specific conditions, e.g. shaft 

in inches or special seat dimensions are available upon 

request.

Product variants

eMG12 

Dimensions, items and designations same as for eMG1, 

but with an extended bellows tail to achieve the fitting 

length I1k according to EN 12756 in combination with seat 

G6 or G60 (da exceeds EN 12756).

eMG13

Dimensions, items and designations same as for eMG1, 

but with an extended bellows tail to achieve the fitting 

length I1N according to EN 12756 in combination with 

seat G6 or G60 (da exceeds EN 12756).

eRMG1..

Identical to eMG1.., but with a special bellows surface on 

the shaft side. For use in hot water pumps up to 120 °C 

(248 °F) and 25 bar (363 PSI) or 140 °C (284 °F) and 

16 bar (232 PSI). Only in combination with seat G606 

(d1 = 12…38 mm (0.47"…1.50"))

Seal face: Tungsten carbide (U3)

Seat G606: Carbon graphite resin impregnated (B), 

Carbon graphite antimony impregnated (A)


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