The PSS Marine Shaft Seal is a mechanical face seal designed to prevent water ingress in a vessel's propulsion system. Installed between the propeller shaft and the stern tube, it eliminates the need for traditional packing glands, reducing maintenance and preventing water from entering the bilge.
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1-2 weeks delivery time The PSS 07-N20-0 O-ring Kit is essential for maintaining your PSS Shaft Seal, providing necessary replacements for O-rings and set screws after rotor removal. The kit includes five set screws, two O-rings, an Allen wrench, thread lock, and four clamp jackets.
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$ 16.78
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1-2 weeks delivery time The PSS 07-N21-4 O-ring Kit is essential for maintaining your PSS Shaft Seal. It includes 5 set screws, 2 O-rings, an Allen wrench, thread lock, and 4 clamp jackets. Replace the O-rings whenever the rotor is removed and re-installed, and use new set screws if the original ones have been removed, as they are designed for single use.
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$ 16.78
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1-2 weeks delivery time The PSS 07-N30-M O-ring Kit is essential for maintaining your PSS Shaft Seal system for 30 mm shafts. It includes 5 set screws, 2 O-rings, an Allen wrench, thread lock, and 4 clamp jackets. Replace the O-rings when removing the rotor and use new set screws if they are removed, as they are designed for single use.
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$ 16.78
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1-2 weeks delivery time The PSS 07-N40-M O-ring Kit is designed for 40 mm shafts and is crucial for maintaining the PSS Shaft Seal. It includes O-rings and set screws, which should be replaced whenever the rotor is removed, as the screws are meant for one-time use. The kit comes with 5 set screws, 2 O-rings, an Allen wrench, thread lock, and 4 clamp jackets for easy installation.
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$ 16.78
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1-2 weeks delivery time The PSS 07-N60-M O-ring Kit is designed for 60 mm shafts and is essential for maintaining the PSS Shaft Seal's performance. It includes 5 set screws, 2 O-rings, an Allen wrench, thread lock, and 4 clamp jackets. It's recommended to replace the O-rings and set screws if the rotor is removed or the screws are ever taken out, as they are intended for one-time use.
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$ 16.78
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1-2 weeks delivery time The PSS 07-25MK is a durable and efficient stainless steel rotor designed for a 25 mm shaft, constructed from 316L stainless steel for excellent corrosion resistance. Engineered with precision using computer-controlled lathes, it features a number 9 micro finish and is fastened securely with set screws at 90 degrees to prevent run-out. The rotor is initially polished by a carbon stator to enhance performance, ensuring a long lifespan under regular operating conditions without the need for frequent replacement.
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$ 195.50
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1-2 weeks delivery time The PSS 07-114-134-KIT is a crucial maintenance kit for 1 1/4" shafts, designed to ensure the optimal performance and longevity of your marine sealing system. It includes essential components such as a bellows, nitrile o-rings, set screws, hose clamps, a tube of thread lock, and an Allen key. Regular inspection and maintenance, particularly every six years for the bellows, is recommended to prevent wear and damage. The kit is compatible with a shaft diameter of 1-1/4" and can accommodate stern tube diameters between 1-3/4" and 1-7/8".
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$ 262.49
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1-2 weeks delivery time The PSS 07-25M-134-KIT is a comprehensive maintenance kit for 25 mm shafts, designed to enhance the longevity and reliability of your PSS bellows system. It includes essential replacement parts such as one bellows, two nitrile o-rings, five set screws, four hose clamps, a tube of thread lock, and an Allen key. Regular inspection and replacement of bellows every six years, along with o-rings, set screws, and hose clamps, are recommended to prevent wear and degradation.
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$ 212.58
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1-2 weeks delivery time The PSS 07-45MK is a durable stainless steel rotor made from high-grade 316L stainless steel, designed to securely fit on a 45 mm shaft. It features set screws for optimal holding power and is crafted with precision, ensuring each face is finished to a number 9 micro standard and perfectly perpendicular to eliminate run-out. The rotor, which is part of the PSS Shaft Seal system, benefits from a Carbon Stator that polishes its face during initial operation, providing long-lasting performance without the need for replacement.
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$ 331.80
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1-2 weeks delivery time The PSS Maintenance Kit for 3 1/4 Shaft is essential for ensuring the performance and longevity of your vessel’s sealing system. Regular maintenance, including the inspection and replacement of bellows every 6 years, is crucial to avoid wear and deterioration. The kit includes a bellows, nitrile o-rings, set screws, hose clamps, a tube of thread lock, and an Allen key, providing everything needed for effective maintenance. Part #: 07-200-314R is designed for a shaft diameter of 2" and a stern tube diameter of 3-1/4" to 3-3/8".
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$ 341.09
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1-2 weeks delivery time The PSS 07-50M-334-KIT is a maintenance kit for vessels with a 50 mm shaft, providing essential components like bellows, o-rings, set screws, and hose clamps to ensure the proper function of the PSS Shaft Seal. It is recommended to replace the bellows every 6 years, along with the o-rings and set screws during maintenance, to avoid deterioration. The carbon stator and stainless steel rotor usually do not require replacement, and the kit includes new set screws to ensure proper sealing after adjustments.
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$ 678.68
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1-2 weeks delivery time The PSS 07-30M-200-KIT is a maintenance kit specifically designed for 30 mm shafts, essential for ensuring optimal performance and longevity through regular inspections and maintenance. It includes key components such as a bellows, nitrile O-rings, screws, hose clamps, a thread lock tube, and an Allen key. PSS recommends replacing the bellows every six years and emphasizes the need for more frequent inspections in certain environments. The kit also contains important notes regarding the use of locking screws and precautions related to sulfuric acid exposure. The part number is 07-30M-200R, suitable for stern tube diameters from 2" to 2-1/8".
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$ 212.58
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1-2 weeks delivery time The PSS 07-30M-214-KIT is a maintenance kit designed for 30 mm shafts, crucial for ensuring optimal performance and longevity of PSS bellows. It includes a bellows, nitrile O-rings, screws, hose clamps, thread lock, and an Allen key, facilitating comprehensive maintenance with recommended replacements every six years. Regular inspections are essential, especially in environments with potential chemical exposure, and it is important to use each lock screw only once for secure installation.
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$ 212.58
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1-2 weeks delivery time The PSS 07-25M-200-KIT is a maintenance kit designed for 25 mm shafts, providing essential components for regular upkeep to ensure optimal performance and longevity, particularly for rubber and silicone parts in water applications. Routine inspections of the PSS bellows are crucial, with recommendations to replace them every six years, along with o-rings, set screws, and hose clamps. The kit includes one bellows, two nitrile o-rings, five set screws, four hose clamps, a tube of thread lock, and an Allen key.
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$ 212.58
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1-2 weeks delivery time The PSS 07-35MK is a high-performance stainless steel rotor designed for 35 mm shafts, featuring durable construction and precision tolerances achieved through computer-controlled lathes. It securely fastens with set screws at 90 degrees and has a micro finish that minimizes run-out. Enhanced by a Carbon Stator during operation, the rotor requires minimal replacement due to its robust 316L stainless steel design, making it suitable for various applications.
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$ 289.74
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1-2 weeks delivery time The PSS 07-50M-234-KIT is a maintenance kit designed for a 50 mm shaft, providing essential replacement parts to maintain the PSS Shaft Seal. The kit includes bellows, o-rings, set screws, hose clamps, thread lock, and an Allen key. PSS Seal recommends replacing the bellows every six years, along with the o-rings and set screws, to prevent wear and ensure proper sealing. Reusing set screws is not advised, as they may not lock properly after being used.
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$ 341.09
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1-2 weeks delivery time The PSS 07-50M-300-KIT is a maintenance kit for 50 mm shafts that includes essential components such as bellows, o-rings, set screws, hose clamps, thread lock, and an Allen key. PSS recommends replacing the bellows every six years, along with the set screws and o-rings, to maintain the system's performance. Re-using set screws is discouraged as they may not lock onto the shaft properly after adjustment or removal. The kit ensures all necessary parts are provided for proper upkeep of the PSS Shaft Seal system.
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$ 341.09
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1-2 weeks delivery time The PSS 07-200-300-KIT is a comprehensive maintenance kit specifically designed for 2" shaft systems, essential for ensuring optimal performance through regular upkeep. It includes critical components such as a bellows, nitrile o-rings, set screws, hose clamps, a tube of thread lock, and an Allen key, all necessary for effective maintenance and replacement every six years. This kit is vital for inspecting and maintaining the integrity of the PSS bellows, as they are made from rubber or silicone and located below the waterline.
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$ 341.09
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1-2 weeks delivery time The PSS 07-38M-300-KIT is a vital maintenance kit for the PSS system, specifically designed for 38 mm shafts to ensure optimal equipment performance. It includes essential components such as bellows, nitrile O-rings, screws, hose clamps, thread lock, and an Allen key. Regular inspections and replacements are crucial, particularly in harsh environments where rubber deterioration may occur due to chemical exposure. PSS recommends inspecting the bellows every six years, and it's important to follow guidelines for secure installation to maintain system integrity.
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$ 349.31
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1-2 weeks delivery time The Allpa PSS Rubber Sleeve Reducer transitions from 2-1/2" (Ø63.5mm) to 2-1/4" (Ø57.2mm), offering a secure and flexible fit for connecting mismatched marine pipes.
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$ 29.97
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How does the PSS marine shaft seal contribute to preventing water ingress in a vessel’s propulsion system?
The PSS shaft seal prevents water ingress in a vessel’s propulsion system by creating a watertight seal around the propeller shaft. The seal uses a self-aligning carbon-graphite stator, which ensures a perfect fit and compensates for misalignment or vibration. Installed as standard equipment by many reputable boat builders, the PSS dripless shaft seal eliminates the need for traditional packing glands, offering a maintenance-free solution that effectively prevents water from entering the bilge.
How is the shaft diameter determined when selecting a PSS dripless shaft seal?
The shaft diameter is determined when selecting a PSS dripless shaft seal by measuring the propeller shaft and ensuring the carbon flange is over-bored to match the shaft diameter. This allows the shaft to "float" within the seal, providing an optimal fit and compensating for any misalignment or vibration. The seal uses two O-rings around the shaft, ensuring a tight seal and preventing water from entering the vessel's propulsion system, thus eliminating the need for traditional packing gland maintenance.
What maintenance steps are necessary to keep the PSS shaft seal functioning optimally over time?
To maintain optimal performance of the PSS shaft seal, it's essential to regularly inspect and replace components as needed. The bellows should be replaced every six years, and during this process, it's advisable to also replace the O-rings and set screws in the stainless steel rotor, as well as the hose clamps. This routine maintenance ensures the longevity and effectiveness of the shaft seal, contributing to the overall reliability of the vessel's propulsion system.