Features
The water-lubricated stern tube seals type 4600 from EagleBurgmann are not alone an environment-friendly solution. They meet all technical requirements of modern sealing technology: modular design, convenient installation, little maintenance, no adjustments.
Type 4600 water-lubricated stern tube seals are virtually leak-free and are leaving no oil or grease residues in the waterway. And because they prevent getting water into the bilge, no elaborate actions are required for its disposal.
Please ask us for references.
Advantages
Water-lubricated
No oil or grease emissions to the environment
Low power consumption
Carbon seal face unsplit for first installation, split for repairs
Version with split mating ring available
Operating range
Shaft diameter:
d1 = 50 … 320 mm (1.97" … 12.60")
Pressure: p = 2 … 7 bar (29 ... 102 PSI)
Temperature:
t = -5 °C … 40 °C (23 °F… 104 °F)
Speed range: n = see diagram
Allowed shaft movements
Axial: ±5 mm,
Radial: Shaft diameter (d1) up to 200 mm: ±2 mm,
>200 mm: ±3 mm
Flushing: approx. 1 l/h per Millimeter of shaft diameter (d1)
Materials
Seal face: Carbon graphite antimony impregnated (A), Carbon graphite resin impregnated (B)
Mating ring: Special cast CrNiMo steel
Collar: Nitrile-butadiene rubber (P)
Face housing: 1.4571 (G)
Clamp ring: 1.4572
Springs: Hastelloy® C-4 (M)
Housing: Bronze / 1.4571
Gasket Burasil® (Y)
Recommended applications
Shipbuilding
Sea water
Fresh water
Notes
Special designs available:
Split mating ring
Amagnetic properties
Shock resistance