WE41 O-ring mechanical seals replace Burgmann BT-RN
Features
• Single pusher-type seal
• Unbalanced
• Conical spring
• Dependent on direction of rotation
Recommended Applications
• Chemical industry
• Building services industry
• Centrifugal pumps
• Clean water pumps
Operating Range
• Shaft diameter:
RN, RN3, RN6:
d1 = 6 … 110 mm (0.24″ … 4.33″),
RN.NU, RN3.NU:
d1 = 10 … 100 mm (0.39″ … 3.94″),
RN4: upon request
Pressure: p1* = 12 bar (174 PSI)
Temperature:
t* = -35 °C … +180 °C (-31 °F … +356 °F)
Sliding velocity: vg = 15 m/s (49 ft/s)
* Dependent on medium, size and material
Combination Materials
Rotary Face
Silicon carbide (RBSIC)
Tungsten carbide
Cr-Ni-Mo Sreel (SUS316)
Tungsten carbide surfacing
Stationary Seat
Carbon graphite resin impregnated
Silicon carbide (RBSIC)
Tungsten carbide
Auxiliary Seal
Nitrile-Butadiene-Rubber (NBR)
Fluorocarbon-Rubber (Viton)
Ethylene-Propylene-Diene (EPDM)
Fluorocarbon-Rubber (Viton)
Spring
Stainless Steel (SUS304)
Stainless Steel （SUS316)
Left rotation: L Right rotation:
Metal Parts
Stainless Steel (SUS304)
Stainless Steel （SUS316)
Specification
