WM7N Water Pump Shaft Seal Replacement Of Eagle Burgmann M7N

Replacement for the below mechanical seals

Burgmann M7N ,LIDERING LWS10, Latty U68, Flowserve Europac 600, Vulcan 1677, AESSEAL W07DMU, Anga V, Sterling 270, Hermetica M251.K2

Features

For plain shafts
Single seal
Unbalanced
Super-Sinus-spring or multiple springs rotating
Independent of direction of rotation

Advantages

Universal application opportunities
Efficient stock keeping due to easily interchangeable faces
Extended selection of materials
Insensitive to low solids contents
Flexibility in torque transmissions
Self-cleaning effect
Short installation length possible (G16)
Pumping screw for media with higher viscosity

Recommended Applications

Process industry
Chemical industry
Pulp and paper industry
Water and waste water technology
Shipbuilding
Lube oils
Low solids content media
Water / sewage water pumps
Chemical standard pumps
Vertical screw pumps
Gear wheel feed pumps
Multistage pumps (drive side)
Circulation of printing colors with viscosity 500 … 15,000 mm2/s.

Operating range

Shaft diameter:
d1 = 14 … 100 mm (0.55 ” … 3.94 “)
Pressure:
p1 = 25 bar (363 PSI)
Temperature:
t = -50 °C … +220 °C
(-58 °F … +428 °F)
Sliding velocity:
vg = 20 m/s (66 ft/s)

Axial movement:
d1 = up to 25 mm: ±1.0 mm
d1 = 28 up to 63 mm: ±1.5 mm
d1 = from 65 mm: ±2.0 mm

Combination material

Rotary Face
Silicon carbide (RBSIC)
Carbon graphite resin impregnated
Tungsten carbide
Cr-Ni-Mo Steel (SUS316)
Stationary Seat
Silicon carbide (RBSIC)
Carbon graphite resin impregnated
Tungsten carbide
Auxiliary Seal
Fluorocarbon-Rubber (Viton)
Ethylene-Propylene-Diene (EPDM)
Silicone-Rubber（MVQ)
PTFE Coated VITON
Spring
Stainless Steel (SUS304)
Stainless Steel （SUS316)
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