PSS — Shaft Seals

PSS (Packless Sealing System) is the world's most trusted dripless mechanical shaft seal, with a proven track record spanning decades of reliable service on recreational and commercial vessels worldwide. Developed as a superior alternative to the traditional stuffing box, the PSS shaft seal has become the industry standard for dripless propeller shaft sealing. Its reputation for dripless, low-attention operation and long service life has made it the preferred choice of leading boat builders, surveyors, and vessel owners globally.

The PSS shaft seal uses a precision-lapped carbon and stainless steel face seal design that provides a completely dripless seal with no packing to adjust — routine care is a six-monthly inspection and a new bellow every six years. Unlike conventional stuffing boxes that require periodic adjustment and replacement of packing material, the PSS seal operates without any drip, keeping bilges dry. Available for shaft sizes from 20mm (3/4 inch) up to 95mm (3-3/4 inch) in the standard seal — with larger commercial sizes to order — the PSS system suits everything from small sailing yachts to large commercial workboats. The design also allows for easy inspection and straightforward replacement of wear components.

Luxfords Marine Industrial Solutions is an authorised dealer for the complete PSS shaft seal range, stocking the standard seal across all common shaft diameters. The Luxfords team provides expert guidance on seal selection, measurement, and installation requirements, ensuring a correct fit for every application. Customers purchasing PSS through Luxfords can expect genuine product, technical support, and the peace of mind that comes from dealing with Australia's specialist supplier of dripless shaft seal technology.