O ring M3N mechanical pump seal for marine industry,
 , 
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)
water pump shaft seal for marine industry
            







