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 02-500-634 Dripless Shaft Seal is a high-performance mechanical face seal designed for stern tubes. It features a stainless-steel rotor and a stationary carbon flange that maintain a reliable seal by compressing a bellows, adapting to shaft movement and compensating for misalignment and vibrations. With temperature limits from -13°F to 425°F, pressure limits of 50 PSI, and capable of handling up to 7,000 RPM, this seal ensures durability and minimal wear during operation. |
€ 9.121,47
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-500-700 Dripless Shaft Seal is a mechanical face seal for marine applications, featuring a stainless-steel rotor and a stationary carbon flange that maintain constant contact to accommodate propeller thrust. It compensates for misalignment and vibrations while being sealed with O-rings that resist wear. With a temperature range of -13°F to 425°F and a pressure limit of 50 PSI, it effectively supports shaft speeds up to 7,000 RPM. |
€ 9.121,47
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-500-712 Dripless Shaft Seal is a mechanical face seal designed for marine applications, ensuring reliable sealing by maintaining contact between a rotating stainless-steel rotor and a stationary carbon flange. The seal accommodates fore and aft shaft movements caused by propeller thrust, compensates for misalignment and vibration, and features durable O-rings that prevent wear during operation. It operates within a temperature range of -13°F to 425°F, with a pressure limit of 50 PSI and a shaft RPM limit of 7,000. |
€ 9.121,47
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-500-714 Dripless Shaft Seal is a mechanical face seal designed for reliable water protection. It features a stainless-steel rotor and carbon flange that maintain constant contact, accommodating shaft movement and compensating for misalignment. This seal operates effectively across a wide temperature range and high RPMs, with its carbon flange allowing for flexibility and reducing wear on the sealing components. |
€ 9.121,47
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-500-734 Dripless Shaft Seal is a mechanical face seal designed for stern tubes, utilizing a rotating stainless-steel rotor and stationary carbon flange to create a reliable seal. The carbon flange attaches to the bellows, which fits over the stern tube, while the rotor compresses the bellows to maintain constant contact. This design accommodates propeller thrust and misalignment, ensuring durability with a temperature range of -13°F to 425°F and a pressure limit of 50 PSI. Key specifications include a shaft diameter of 5 inches and a stern tube diameter of 7-3/4 to 7-7/8 inches. |
€ 9.121,47
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-500-800 is a reliable dripless shaft seal designed for marine applications, utilizing a mechanical face seal that combines a rotating stainless-steel rotor with a stationary carbon flange. This design ensures a tight seal while accommodating movements from propeller thrust, with features like a floating carbon flange to address misalignment, and O-rings that minimize wear. Built to withstand extreme temperatures and pressures, it is an effective solution for maintaining performance in challenging marine environments. |
€ 9.121,47
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-500-858 Dripless Shaft Seal is a high-performance mechanical seal designed for marine applications. It features a stainless-steel rotor and a stationary carbon flange that create a reliable seal between them. The seal is effective in temperatures ranging from -13°F to 425°F, handles pressures up to 50 PSI, and operates at shaft speeds up to 7,000 RPM. Its construction includes lapped carbon graphite and a mandrel-formed silicone/fabric bellows, with precise dimensions to ensure a perfect fit and reliable performance. |
€ 9.121,47
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-50M-212 Dripless Shaft Seal is designed for marine applications, utilizing a mechanical face seal that prevents leaks. It features a stainless-steel rotor and a stationary carbon flange, ensuring consistent contact to accommodate propeller thrust. The over-bored carbon flange allows for compensation of misalignment and vibration, while two O-rings provide a reliable seal. This shaft seal operates effectively within a temperature range of 5°F to 225°F and supports pressures up to 15 PSI, making it a durable choice for reliable performance. |
€ 964
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-50M-234 Dripless Shaft Seal is a mechanical face seal designed for marine applications, ensuring a watertight fit while accommodating propeller thrust. It features a rotating stainless-steel rotor paired with a stationary carbon flange, providing constant contact through pre-load compression. The seal compensates for misalignment and vibration, with two O-rings protecting against wear. Key specifications include a temperature range of 5°F to 225°F, pressure limits of 15 PSI, and compatibility with shafts up to 10,000 RPM. |
€ 964
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-50M-300 Dripless Shaft Seal features a mechanical face seal with a stainless-steel rotor and a carbon flange, ensuring a secure, leak-proof seal for stern tubes. Designed to accommodate propeller thrust and compensate for misalignment, it includes an over-bored carbon flange and durable O-rings. It operates within a temperature range of 5°F to 225°F, with pressure limits of 15 PSI and shaft RPM limits of 10,000. |
€ 964
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-50M-312 Dripless Shaft Seal is a mechanical face seal designed for marine applications. It features a stainless-steel rotor that compresses a bellows, maintaining contact with a stationary carbon flange to accommodate propeller thrust and misalignment. With temperature limits of 5°F to 225°F, pressure limits of 15 PSI, and a shaft RPM limit of 10,000, this seal ensures reliable performance. Key specifications include a shaft diameter of 50mm and compatibility with stern tube diameters ranging from 3-1/2" to 3-5/8". |
€ 964
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-50M-314 Dripless Shaft Seal is a reliable marine sealing solution featuring a mechanical face seal that effectively prevents water intrusion. It consists of a stainless-steel rotor and a stationary carbon flange, which compress together to maintain optimal contact and adapt to shaft movement. The design accommodates misalignment and vibration, while two rotating O-rings ensure minimal wear. With temperature limits from 5°F to 225°F, pressure limits of 15 PSI, and a maximum shaft RPM of 10,000, this seal is built for durability and performance in demanding conditions. |
€ 964
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-50M-334 Dripless Shaft Seal is a high-performance mechanical face seal designed for marine applications. It features a stainless-steel rotor and a carbon flange that create a tight seal, accommodating shaft movement and misalignment. The seal is constructed with a molded nitrile PVC bellows and O-rings that ensure durability and resistance to wear. It operates effectively within a temperature range of 5°F to 225°F and can handle up to 10,000 RPM and 15 PSI pressure. The product is engineered for precision with a carbon graphite tolerance of 0.000044" and a surface finish of 9-12 Ra.
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€ 1.065,28
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-50M-400 Dripless Shaft Seal is a mechanical face seal designed for marine applications, featuring a stainless-steel rotor and a floating carbon flange that ensures a leak-free operation by accommodating misalignment and vibrations. It operates effectively within temperatures from 5°F to 225°F and can handle pressures up to 15 PSI, making it suitable for stern tube systems with a shaft diameter of 50 mm and a stern tube diameter of 4" to 4-1/8". |
€ 1.065,28
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-512-612 Dripless Shaft Seal is a mechanical face seal designed for marine applications, providing reliable watertight performance. It features a stainless-steel rotor that compresses a bellows, maintaining contact with a stationary carbon flange to accommodate propeller thrust and misalignment. With temperature limits of -13°F to 425°F and a pressure rating of 50 PSI, this shaft seal ensures durability and efficiency in demanding conditions. |
€ 10.047,14
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-512-634 Dripless Shaft Seal is a mechanical face seal designed for marine applications. It features a stainless-steel rotor and a carbon flange that ensure a reliable seal by maintaining constant contact and compensating for shaft movement. The carbon flange accommodates misalignment, while two O-rings seal the rotor to the shaft, rotating without wear. This seal operates within a temperature range of -13°F to 425°F, handles pressures up to 50 PSI, and supports shaft speeds of up to 7,000 RPM. |
€ 10.047,14
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-512-700 Dripless Shaft Seal is a mechanical face seal designed for marine applications, featuring a rotating stainless-steel rotor that compresses a bellows against a stationary carbon flange. This design maintains constant contact to accommodate propeller thrust while compensating for misalignment and vibration. It operates effectively within temperature limits of -13°F to 425°F and can handle pressures up to 50 PSI. With a shaft RPM limit of 7,000, this seal ensures durability and reliability in challenging conditions. |
€ 10.047,14
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1-2 weeks delivery time Price incl. 19% VAT The PSS 02-512-712 Dripless Shaft Seal is a mechanical face seal designed for marine applications, featuring a stainless-steel rotor that compresses a flexible bellows against a stationary carbon flange. This design allows for constant contact and compensation for propeller thrust, while the floating carbon flange accommodates misalignment and vibration. With temperature limits of -13°F to 425°F and pressure limits of 50 PSI, it ensures reliable performance in demanding conditions. |
€ 10.047,14
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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.