Experience peace of mind and worry-free boating with PSS Shaft Seals, the trusted choice of boat owners and professionals worldwide.
Fast deliveries of yacht equipment, calculation, selection of analogues and spare parts. Send us your request and we will contact you ASAP with a solution. We deliver in Cyprus, throughout Europe and worldwide. More than 10 years of experience.
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-25M is a durable stainless steel rotor for 25mm shafts, secured with set screws for maximum holding power. Crafted with precision using computer-controlled lathes, it features a micro-finished face that minimizes run-out. The rotor is designed for long-lasting performance, made from 316L stainless steel, and should not need replacement under normal operating conditions. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-25M-112 Maintenance Kit is essential for the upkeep of your PSS Shaft Seal, including a bellows replacement every six years, along with new o-rings, set screws, and hose clamps for optimal performance. Regular inspections for wear and deterioration are crucial, and the kit contains all necessary components for maintenance, ensuring a reliable fit with new set screws included. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-25M-134 Maintenance Kit is essential for maintaining the performance of your 25mm shaft system, including a bellows that should be replaced every six years. This kit includes a bellows, nitrile o-rings, set screws, hose clamps, thread lock, and an Allen key. It is crucial to replace the o-rings and set screws during bellows replacement for optimal performance, and the kit provides new set screws since reusing old ones can compromise the seal's effectiveness. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-300-2 Carbon Graphite Stator Flange is designed for PSS propeller shaft seals, forming a reliable mechanical seal when paired with a stainless steel 316 rotor. It connects to rubber bellows and features a flange intentionally bored larger than the shaft diameter to accommodate misalignment and vibration, ensuring optimal performance. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-300-234 reducer allows for a smooth transition from a 3-inch to a 2 3/4-inch fitting, specifically designed for compatibility with PSS Shaft Seals. Made from durable materials, it ensures reliable performance and longevity, making it essential for optimal system functionality. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-300-2M is a carbon graphite stator flange designed for PSS propeller shaft seals. When paired with a stainless steel 316 rotor, it creates a mechanical seal. This stator connects to rubber bellows and is intentionally bored larger than the shaft diameter to accommodate misalignment and vibration, ensuring durability and effective performance. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-30M stainless steel rotor is designed for 30mm shafts, featuring secure set screws for maximum holding power and precision tolerances achieved through computer-controlled lathes. With a number 9 micro finish and perpendicular faces to prevent run-out, it ensures optimal performance. The rotor, made from durable 316L stainless steel, is polished by the Carbon Stator during initial operation and is built to last under normal conditions without needing replacement. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-30M-112 Maintenance Kit is essential for maintaining your 30mm shaft system, as it includes all necessary parts for regular upkeep, such as bellows, o-rings, set screws, and hose clamps. PSS Seal recommends replacing the bellows every six years and advises that the set screws should not be reused to ensure a secure fit. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-30M-134-KIT is a maintenance kit for 30mm shafts, essential for ensuring the longevity of your PSS Shaft Seal system. Regular inspections of the PSS bellows for wear and replacement every six years are recommended, along with changing the o-rings, set screws, and hose clamps. The kit includes all necessary replacement parts, and re-using the cup-point set screws is not advisable, as it may prevent proper locking; five new set screws are provided in the kit. |
€ 127,83
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-312-2 is a carbon graphite stator flange designed for PSS propeller shaft seals. It pairs with a stainless steel 316 rotor to create a mechanical seal, while its larger bore accommodates misalignment and vibration, ensuring durability and performance in marine applications. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-312-314 Reducer facilitates a transition from 3 1/2" to 3 1/4" fittings and is specifically designed for compatibility with PSS Shaft Seals, ensuring reliable performance in various applications. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-334-2 Carbon Graphite Stator Flange is designed for PSS propeller shaft seals, creating a mechanical seal when paired with a stainless steel 316 rotor. It attaches to rubber bellows and features a flange that is intentionally bored larger than the shaft diameter to accommodate misalignment and vibration, enhancing the system's performance and durability. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-35M rotor, made from durable 316L stainless steel, is designed for a 35mm shaft and secured with 90-degree set screws for maximum holding power. It features precision tolerances achieved through computer-controlled lathes, with a number 9 micro finish on its face to prevent run-out during rotation. The rotor is self-polishing thanks to the Carbon Stator in the initial moments of operation and is built to last under normal conditions without needing replacement. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-35M-212 Maintenance Kit is essential for maintaining your PSS Shaft Seal, containing a bellows, nitrile o-rings, set screws, hose clamps, thread lock, and an Allen key. Regular inspection and replacement of the bellows every six years are crucial, along with replacing o-rings and set screws during maintenance. Re-using set screws is not recommended, as they are designed to lock onto the shaft only once, ensuring optimal performance and reliability. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-35M-214 Maintenance Kit is essential for maintaining your 35mm shaft system, including a bellows that should be inspected regularly for wear and replaced every six years. The kit contains all necessary parts: bellows, nitrile o-rings, set screws, hose clamps, thread lock, and an Allen key. It’s important to replace the o-rings and set screws during bellows replacement, as re-using set screws can compromise their effectiveness. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-38M stainless steel rotor is designed for 38mm shafts, secured with set screws for maximum holding power. Made from 316L stainless steel, it features precise tolerances and a polished finish to prevent run-out. The rotor works with a carbon stator that enhances its surface during initial operation and is built to last under normal conditions without needing replacement. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-40M is a durable stainless steel rotor made from 316L stainless steel, designed for 40 mm shafts. It slides down the shaft and is secured with set screws for maximum holding power. Precision tolerances are achieved using computer-controlled lathes, and the rotor features a number 9 micro finish to reduce run-out. During initial operation, the Carbon Stator polishes the rotor's face, ensuring long-lasting performance without the need for replacement under normal conditions. |
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1-2 weeks delivery time Price incl. 19% VAT The PSS 07-40M-200 Maintenance Kit is essential for maintaining your 40mm shaft seal system, including a bellows that should be replaced every six years, along with o-rings, set screws, and hose clamps. Regular inspection is vital to prevent wear and deterioration, and the kit contains all necessary replacement parts, including five new set screws, as reused set screws may not lock properly onto the shaft. |
€ 210,04
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What is the primary function of a PSS shaft seal in marine applications?
The primary function of a PSS shaft seal in marine applications is to provide a reliable and watertight seal around the propeller shaft, preventing water from entering the boat. The PSS shaft seal is a mechanical face seal, consisting of a stationary carbon flange and a rotating stainless-steel rotor, which is sealed to the shaft by two O-rings. This design allows the seal to compensate for misalignment and vibration, ensuring a consistent and effective seal without constant adjustment, thus reducing maintenance needs.
The carbon flange is attached to the front side of the bellows with hose clamps, and the rotor fits over the shaft and is secured with set screws, maintaining constant contact between the flat surfaces of the carbon flange and the rotor. This setup allows the PSS shaft seal to float around the shaft, providing flexibility and durability, making it a recognized and reliable choice for many of the world's most reputable boat builders and boatyards.
The PSS shaft seal features o-rings that rotate with the shaft, allowing the seal to compensate for any misalignment and ensuring that the rotor does not experience wear during operation. The diameter allows it to “float” around the prop shaft, providing a reliable seal. Manufactured by PYI Inc., the PSS shaft seal is recognized for its value in eliminating over-bored shaft diameters and reducing maintenance needs. As the number one selling marine mechanical seal worldwide, it is installed as standard equipment by many of the world's most reputable boat builders. The seal is available in various sizes, such as 95mm and 100mm, and is also recognized as the premiere retrofit solution, highlighting the advantages and value of installing PSS shaft seals in both new and existing boats.
What are the primary components included in the PSS Shaft Seal maintenance kits?
The primary components included in the PSS Shaft Seal maintenance kits are designed to ensure optimal performance and longevity of the mechanical seal. These kits typically include replacement O-rings that rotate with the shaft, a stainless steel rotor that fits on the shaft in front of the carbon flange, and a bellow that is secured to the shaft to compensate for compression, misalignment, and vibration problems. Additionally, the maintenance kits contain parts that create a watertight seal between the flat surfaces of the rotating stainless steel rotor and the stationary carbon flange, ensuring consistent pre-load and reducing wear during operation.
Around the shaft and thus compensating for various issues, the PSS Type B shaft seal features O-rings that rotate with the shaft, ensuring a tight seal. The PSS is designed to compensate for shaft diameter variations, allowing for retrofit applications. The seal is created between the flat surfaces of the rotating stainless steel rotor and the stationary carbon flange, which is attached to the shaft to thus compensate for most misalignment. The rotor is fit with a 20mm or 150mm recess, ensuring that it does not experience wear during operation. The gland and other components work together to provide a reliable and long-lasting seal.
The PSS shaft seal system utilizes O-rings that rotate with the shaft, allowing the seal to compensate for any misalignment. This design enables the rotor to maintain constant contact with the stationary carbon flange, ensuring that the rotor does not experience wear during operation. The diameter of the shaft seal allows it to "float," accommodating various shaft diameters. Manufactured by PYI Inc., the PSS shaft seal eliminates the need for constant maintenance and is recognized as the number one selling marine mechanical seal worldwide. It is installed as standard equipment by many of the world’s most reputable boat builders, highlighting the value of installing the PSS shaft seal for reliable and long-lasting performance. The seal’s design includes two flat faces—one on the rotating stainless steel rotor and the other on the stationary carbon flange—ensuring a secure fit. Additionally, the PSS shaft seal is known for its ease of installation, cost-effectiveness, and reliable aftermarket support, making it a trusted choice in the marine industry.
What is the function of the hose in a PSS shaft seal system?
The function of the hose in a PSS shaft seal system is to create a watertight barrier around the shaft, thus compensating for any misalignment and allowing the shaft to "float." The hose is fit over the stern tube and secured with hose clamps, providing flexibility and eliminating the need for constant adjustment. This design ensures the stainless-steel rotor and stationary carbon flange maintain flat surfaces, allowing the o-rings to rotate with the shaft and prevent wear during operation. The PSS shaft seal is also recognized for its reliability in marine environments.
In addition, the PSS shaft seal system includes o-rings that rotate with the shaft, enhancing the seal's durability by ensuring consistent contact. The system is designed to compensate for various shaft diameters, allowing for a customizable fit. The stationary carbon flange is attached to the rotor, which does not experience wear during operation, further extending the system's lifespan. This comprehensive design ensures the PSS shaft seal maintains its integrity, providing a reliable solution for maintaining a watertight seal in challenging marine conditions.
The PSS shaft seal’s innovative design allows the o-rings to rotate with the shaft, ensuring the seal compensates for any misalignment. The rotor and stationary carbon flange do not experience wear during operation, maintaining a durable and effective seal. This ability to compensate for shaft diameter variations, combined with the reliable performance of the PSS shaft seal, highlights the value of using this system in marine applications. The PSS shaft seal is designed to provide a long-lasting, watertight solution, making it a preferred choice for many of the world's most reputable boat builders and marine professionals.