By PSS

PSS Shaft Seal 32 mm Shaft, 2 1/4" Stern Tube

Regular price €556,62
Regular price Sale price €556,62
Tax included.

No more dripping stuffing boxes: The PSS Shaft Seal Type A is a low-maintenance mechanical shaft 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 – without any drip water in the bilge.

Tip: The correct preload of the bellows is crucial for perfect functioning. 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, re-check all hose clamps for a secure fit.

brand: PSS
Availability: Low stock
SKU: OB-BB-02-32M-214
category:
Engine technology
Regular price €556,62
Regular price Sale price €556,62

  • Mechanical face seal – no dripping, no need for readjustment as with classic stuffing boxes
  • Floating carbon flange automatically compensates for misalignments and shaft vibrations
  • Pre-stressed stainless steel rotor keeps sealing surface permanently in 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 Face 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)
Bellow Material Molded 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 Attachment Hose clamps to bellows and stern tube
Rotor Attachment Set screws on shaft

PSS

Gewicht (ca.): 0.11 kg