WM3N O-ring mechanical seals Burgmann M3N replacement

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