By PSS

PSS Shaft Seal 40 mm Shaft, 2 1/4" Stern Tube

€725,29
€725,29
Tax included.

No more dripping stuffing boxes: The PSS Shaft Seal Type A is a low-maintenance mechanical face seal that seals your propeller shaft passage absolutely watertight. It reliably compensates for misalignments, vibrations, and the axial forward and backward movement caused by propeller thrust – with no dripping water in the bilge.

Tip: The correct pre-tensioning of the bellows is crucial for proper function. After installation, check the compression of the bellows and ensure that the set screws of the rotor rest on clean, degreased shaft metal. After the first few hours of operation, recheck all hose clamps for a tight fit.
brand: PSS
Availability: Low stock
SKU: OB-BB-02-40M-214
Product group:
category:
Engine technology
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€725,29
€725,29

  • Mechanical face seal – no dripping, no readjustment like with classic stuffing boxes
  • Floating carbon flange automatically compensates for misalignments and shaft vibrations
  • Pre-tensioned stainless steel rotor keeps sealing surface in permanent contact even with changing propeller thrust
  • O-rings rotate with the shaft – no wear on the shaft surface during operation
  • Wide temperature range from –15 °C to +107 °C for year-round use
  • Robust materials: carbon-graphite lapped to 4 HLB, rotor made of 316 SS / Nitronic 50

Type PSS Mechanical Seal Type A
Shaft Diameter 50 mm
Stern Tube ID 3″
Sealing Principle Mechanical Seal (rotating stainless steel rotor / stationary carbon flange)
Rotor Material 316 SS / Nitronic 50, 9 Ra surface finish
Carbon Flange Carbon Graphite, lapped to 4 HLB (0.000 011 mm tolerance)
Bellows Material Moulded Nitrile – PVC
Rotor Seal to Shaft 2 O-rings (rotating, no wear during operation)
Temperature Limits –15 °C to +107 °C
Pressure Limit 1 bar (15 PSI)
Max. Shaft Speed 10,000 RPM
Carbon Flange Fastening Hose clamps to bellows and stern tube
Rotor Fastening Set screws on shaft

PSS

Gewicht (ca.): 0.11 kg