Products
#1 Mechanical Shaft Seal for over 30 years on the world market
PSS SHAFT SEALS
Passion for performance
PSS SHAFT SEALS is recognized as the highest quality and number 1 marine mechanical seal in the world. It requires low adjustment and low maintenance.
Discover our competitive Shaft Seals and accessories pricing!
Products
Keep your yacht in perfect condition! Get a quote now for our maintenance services and spare parts.
Adapter set T
PRICE
From $51 to $56 USD. Specific dimensions, references, and prices according to the table.
FEATURES:
PYI offers Kits-T to help facilitate the installation of the PSS mechanical seal. These Kits-T allow the installer to derive a T from the sea water discharge line and supply water through a hose connector to the PSS mechanical seal.
Retention collars for shafts
PRICE
From $20 to $220 USD.
FEATURES
The Shaft Retention Collar (SRC) is designed to protect propeller shafts and rudders. It helps keep the shaft and rudder inside the boat in case of a coupling failure. Thanks to its simple design, the SRC can be easily installed with the shaft or rudder in place. Available to fit shafts from 1" to 3" or 25 to 80mm.
Maintenance kit
PRICE
From $92 to $1160 USD
FEATURES
To ensure the longevity and proper functioning of the PSS seal, PYI supplies PSS service kits to meet the requirements of the preventive maintenance plan. As with any rubber/silicone hose below the waterline, PSS bellows should be inspected periodically for signs of wear, age or chemical deterioration. PYI recommends replacement of the bellows once every 6 years (For Type A seals) and 8-10 years (For Type B and PRO seals). During bellows replacement it is also recommended that the O-rings and set screws on the stainless steel rotor be replaced, as well as the clamps. PYI includes all necessary components and parts in its PSS maintenance kits.
PSS type B
PRICE
FROM $ 4600 TO $ 6650 USD
CHARACTERISTICS
FOR LARGE COMMERCIAL VESSELS, WITH SHAFTS FROM 4" (100 MM) TO 6" (150 MM) DIAMETER.
COMMERCIALLY PROVEN FOR OVER 20 YEARS. THIS SEAL IS THE WORKHORSE OF THE COMMERCIAL MARINE INDUSTRY.
STEEL REINFORCEMENT RINGS FOR CORRUGATED RUBBER BELLOWS. STANDARD FOR 4" (100 MM) DIAMETER SHAFTS OR LARGER.
TYPE B SEALS USE 316S STAINLESS STEEL TYPE T CLAMPS WITH SCREW.
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PSS Pro seal
PRICE
From $ 425 to $ 3130 USD
CHARACTERISTICS
For commercial vessels, with shafts from 1 ¼" (32 mm) to 3- 3/4" (96 mm) diameter.
Manufactured with the concept of application in workboats.
Steel reinforcement rings for corrugated rubber bellows. Standard for 2 ¼" (60 mm) diameter shafts or larger.
Pro seals use 316s stainless steel clamps with rolled ends and non-perforated bands.
PSS Type A – Mechanical shaft seals
PRICE
From $ 300 to $ 2650 USD
FEATURES
This packing-free mechanical seal is a flat face seal that creates a mechanical seal between a dynamic stainless steel rotor and a stationary carbon stator.
The carbon stator is connected to a corrugated rubber bellows and the backside of the bellows is connected to the shaft's horn tube by metal clamps.
During installation, the stainless steel rotor is used to compress the corrugated rubber bellows. Once compressed, the rotor is secured to the shaft. Compression of the bellows allows the seal faces to maintain constant contact, while compensating for axial movement fore and aft of the shaft caused by the thrust of the propeller on the motor's anti-vibration mounts.
The inner diameter of the carbon stator is slightly enlarged in reference to the outer diameter of the shaft, allowing it to "float" around the shaft and compensate for misalignment and vibration of the installation.
The stainless steel rotor is sealed to the shaft with nitrile rings. These rings rotate with the shaft and rotor suppressing wear during operation.
This static ring seal allows PSS mechanical seals to be installed on shafts that already have a certain degree of wear or pitting, unlike lip seals that require an absolutely imperfection-free surface for installation and optimum operation. This type of carbon stator is not as sensitive to cooling water flow interruption or operation in dirty water compared to other mechanical seal options on the market.
Scott Michael
2023-09-04
It's been about 6 weeks since they installed Sonihull on by boat. As of today, there is not one single barnacle on my boat. I was at the sandbar today and dived in with a mask... and the bottom paint is still like new. I'll update if anything changes. Thanks guys!
John Holland
2023-07-12
It’s been three months since our professional Sonihull Duo installation. I’m delighted to report that the system is working as promised in an environment high with marine growth. My bottom shows no barnacle growth with light and smooth Algae covering the bottom as verified by my hired Diver. While treated with anti-fouling paint it proves out how both applications work together successfully. I’m the owner of the new Boston Whaler Outrage 330 that I took delivery in early April. Juliana Gómez-Leach and Alejandro representing leadership at Pragati YACHT were nothing less than professional from education to installation. We can not thank them enough for traveling to Bohicket Marina Village, Seabrook Island, SC. to complete the successful installation project.
THANK YOU!
#Bostonwhaler
#Bohicketmarinavillage
#Marinemax
Lucien Lepoutre
2023-03-17
I have had this system for a couple of years , due to my hull multi Kevlar layers on my Neptunus the transducers had to be moved which Pragati supported at no cost . It made a 180 difference , I used to bottom clean every 4 weeks , now after 90 days only a little algae growth on the water line which is easily removed . My last paint job made it 4 years with 3 years without the system and one year with it . With the system now I don’t believe I will need to repaint for at least 6-8 years .
Also it is affecting the swim platform which I didn’t think it would , which is a great additional benefit .
Thank you for Pragati continued support 😀
M P
2022-12-20
Thank you very much for the incredible attention you gave me, you have some great products, I will recommend them to everyone I know.
Robert Sclafani
2022-12-02
They installed Sonihull system 1 year ago and I have had no barnacles and zero problems.
I was skeptical at first but now I have lived with for a year and have proven results
Highly recommend
I use them for bottom cleaning and they are great I mean really great!
alex is great as the installer tech!
David Vatland
2022-12-01
I had this product installed a little over 1 year ago and it really works. We pulled boat and only growth was on running gear. Noting on the bottom of boat where this product does its work.
Algae was only thing on bottom. Cannot stop that. Overall a great saver of fuel and much better ride.
Horacio Pinto
2022-12-01
A company with a high level of professionalism !!!! I am a customer of them and their quality and punctuality service are excellent! I recommend them 100%. Follow the successes!!
Laura Gurski
2022-12-01
I had Sonic Hull Installed on my trawler a year ago. I do keep my boat in south Florida. The results have been amazing. Divers come after 3 months with little growth. I use to have a diver every 4 weeks. I doubt that I will bottom paint for 2 more years. Pragati did an excellent professional installation. I could not be happier.
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1- (805) 459-3568
Location
Boca Raton, Florida. Mobile Services
Call us
1- (561) 568-3343
Schedule: Mon – Fri 8:00 a.m. – 5:00 p.m. / Sat 8:00 a.m. – 12:00 p.m.
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