O ring mechanical seal replace burgmann M3N for water pump,
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Analog to the following mechanical seals
- Burgmann M3N
- Flowserve Pac-Seal 38
- Vulcan Type 8
- AESSEAL T01
- ROTEN 2
- ANGA A3
- Lidering M211K
Features
- For plain shafts
- Single seal
- Unbalanced
- Rotating conical spring
- Dependent on direction of rotation
Advantages
- Universal application opportunities
- Insensitive to low solids content
- No damage of the shaft by set screws
- Large choice of materials
- Short installation lengths possible (G16)
- Variants with shrink-fitted seal face available
Recommended Applications
- Chemical industry
- Pulp and paper industry
- Water and waste water technology
- Building services industry
- Food and beverage industry
- Sugar industry
- Low solids content media
- Water and sewage water pumps
- Submersible pumps
- Chemical standard pumps
- Eccentric screw pumps
- Cooling water pumps
- Basic sterile applications
Operating Range
Shaft diameter:
d1 = 6 … 80 mm (0,24″ … 3,15″)
Pressure: p1 = 10 bar (145 PSI)
Temperature:
t = -20 °C … +140 °C (-4 °F … +355 °F)
Sliding velocity: vg = 15 m/s (50 ft/s)
Axial movement: ±1.0 mm
Combination Material
Rotary Face
Silicon carbide (RBSIC)
Tungsten carbide
Cr-Ni-Mo Steel (SUS316)
Surface hard facing tungsten carbide
Stationary Seat
Carbon graphite resin impregnated
Silicon carbide (RBSIC)
Tungsten carbide
Auxiliary Seal
Nitrile-Butadiene-Rubber (NBR)
Fluorocarbon-Rubber (Viton)
Ethylene-Propylene-Diene (EPDM)
Spring
Stainless Steel (SUS304)
Stainless Steel （SUS316)
Left rotation: L Right rotation:
Metal Parts
Stainless Steel (SUS304)
Stainless Steel （SUS316)
Item Part no. to DIN 24250 Description
1.1 472 Seal face
1.2 412.1 O-Ring
1.3 474 Thrust ring
1.4 478 Righthand spring
1.4 479 Lefthand spring
2 475 Seat (G9)
3 412.2 O-Ring
WM3N dimension data sheet(mm)
