Dripless Shaft Seals - Packless Sealing Systems Metric Sizes, Model Number: 0255M300

The PSS Shaft Seal Packless Sealing System is a dripless stuffing box and packing gland replacement for sailboat and power boat drivetrains.

The dripless shaft seal is a mechanical seal that uses a self-aligning carbon-graphite stator to ensure a 100% watertight seal with proven reliability.

This packless seal will eliminate shaft wear and minimize corrosion.

The PYI PSS Dripless Shaft Seal is the number one selling marine mechanical seal worldwide and is installed as standard equipment by many of the world’s most reputable boat builders & yards.

How Does The PSS Mechanical Shaft Seal Work?

A mechanical shaft seal is created by the contact of a turning surface against a stationary surface. In the case of the PSS Dripless Shaft Seal, the stationary surface is a carbon flange held in contact against a stainless steel rotor which turns with the shaft. The carbon flange is attached to the boat by a nitrile bellow which, with the help of water pressure, produces a constant contact between the carbon and the stainless steel ring. These type of seals are unaffected by engine motion or vibrations.

The result is a 100% watertight and totally maintenance-free dripless shaft seal.

Available for shafts from 20mm to 95mm. Larger sizes available upon request. Please use our 'Product Inquiry' Form, or call 1-800-454-6960 for larger sizes.
Dripless Shaft Seals - Packless Sealing Systems Metric Sizes, Model Number: 0255M300
The PSS Shaft Seal Packless Sealing System is a dripless stuffing box and packing gland replacement for sailboat and power boat drivetrains.

The dripless shaft seal is a mechanical seal that uses a self-aligning carbon-graphite stator to ensure a 100% watertight seal with proven reliability.

This packless seal will eliminate shaft wear and minimize corrosion.

The PYI PSS Dripless Shaft Seal is the number one selling marine mechanical seal worldwide and is installed as standard equipment by many of the world’s most reputable boat builders & yards.

How Does The PSS Mechanical Shaft Seal Work?

A mechanical shaft seal is created by the contact of a turning surface against a stationary surface. In the case of the PSS Dripless Shaft Seal, the stationary surface is a carbon flange held in contact against a stainless steel rotor which turns with the shaft. The carbon flange is attached to the boat by a nitrile bellow which, with the help of water pressure, produces a constant contact between the carbon and the stainless steel ring. These type of seals are unaffected by engine motion or vibrations.

The result is a 100% watertight and totally maintenance-free dripless shaft seal.

Available for shafts from 20mm to 95mm. Larger sizes available upon request. Please use our 'Product Inquiry' Form, or call 1-800-454-6960 for larger sizes.
0255M300
Model Number:
0255M300  
Shaft Size (mm)
55
Stern Tube O.D. (in.)
3 - 3-1/8
Compressed Length (in.)
8-1/8
List Price:
$550.00
Our Online Price: InStock and Ready to Ship!
$440.99  You Save $109.01 (19.82%)!
 
  1. List of Products
Show Filter Options
  
Order Qty.Model NumberShaft Size (mm)Stern Tube O.D. (in.)Compressed Length (in.)Weight (lbs.)Price

0220M112 201-1/2 - 1-5/86-1/44.0 $270.00
$216.99

0220M114 201-1/4 - 1-3/86-1/44.0 $270.00
$216.99

0220M134 201-3/4 - 1-7/86-1/44.0 $270.00
$216.99

0220M200 202 - 2-1/86-1/44.0 $270.00
$216.99

0220M212 202-1/2 - 2-5/86-3/44.0 $280.00
$224.99

0220M214 202-1/4 - 2-3/86-1/44.0 $270.00
$216.99

0222M112 221-1/2 - 1-5/86-1/44.0 $270.00
$216.99

0222M114 221-1/4 - 1-3/86-1/44.0 $270.00
$216.99

0222M134 221-3/4 - 1-7/86-1/44.0 $270.00
$216.99

0222M200 222 - 2-1/86-1/44.0 $270.00
$216.99

0222M212 222-1/2 - 2-5/86-3/44.0 $280.00
$224.99

0222M214 222-1/4 - 2-3/86-1/44.0 $260.00
$208.99

0225M112 251-1/2 - 1-5/86-1/44.0 $280.00
$224.99

0225M114 251-1/4 - 1-3/86-1/44.0 $270.00
$216.99

0225M134 251-3/4 - 1-7/86-1/44.0 $280.00
$224.99

0225M200 252 - 2-1/86-1/44.0 $280.00
$224.99

0225M212 252-1/2 - 2-5/86-3/44.0 $310.00
$248.99

0225M214 252-1/4 - 2-3/86-1/44.0 $280.00
$224.99

0228M112 281-1/2 - 1-5/86-1/44.0 $280.00
$224.99

0228M114 281-1/4 - 1-3/86-1/44.0 $270.00
$216.99

0228M134 281-3/4 - 1-7/86-1/44.0 $280.00
$224.99

0228M200 282 - 2-1/86-1/44.0 $280.00
$224.99

0228M212 282-1/2 - 2-5/86-3/44.0 $310.00
$248.99

0228M214 282-1/4 - 2-3/86-1/44.0 $280.00
$224.99

0230M112 301-1/2 - 1-5/86-1/44.0 $280.00
$224.99

0230M114 301-1/4 - 1-3/86-1/44.0 $270.00
$216.99

0230M134 301-3/4 - 1-7/86-1/44.0 $280.00
$224.99

0230M200 302 - 2-1/86-1/44.0 $280.00
$224.99

0230M212 302-1/2 - 2-5/86-3/44.0 $310.00
$248.99

0230M214 302-1/4 - 2-3/86-1/44.0 $280.00
$224.99

0232M134 321-3/4 - 1-7/86-1/26.0 $320.00
$256.99

0232M200 322 - 2-1/86-1/26.0 $320.00
$256.99

0232M212 322-1/2 - 2-5/86-1/26.0 $320.00
$256.99

0232M214 322-1/4 - 2-3/86-1/26.0 $320.00
$256.99

0232M234 322-3/4 -2-7/87-3/46.0 $350.00
$280.99

0232M300 323 - 3-1/87-3/46.0 $350.00
$280.99

0232M312 323-1/27-3/46.0 $340.00
$272.99

0232M314 323-1/4 - 3-3/87-3/46.0 $340.00
$272.99

0235M134 351-3/4 - 1-7/86-1/26.0 $320.00
$256.99

0235M200 352 - 2-1/86-1/26.0 $320.00
$256.99

0235M212 352-1/2 - 2-5/86-1/26.0 $320.00
$256.99

0235M214 352-1/4 - 2-3/86-1/26.0 $320.00
$256.99

0235M234 352-3/4 -2-7/87-3/46.0 $350.00
$280.99

0235M300 353 - 3-1/87-3/46.0 $350.00
$280.99

0235M312 353-1/27-3/46.0 $340.00
$272.99

0235M314 353-1/4 - 3-3/87-3/46.0 $340.00
$272.99

0238M200 382 - 2-1/88-1/86.0 $425.00
$340.99

0238M212 382-1/2 - 2-5/88-1/86.0 $425.00
$340.99

0238M214 382-1/4 - 2-3/88-1/86.0 $425.00
$340.99

0238M234 382-3/4 -2-7/88-1/86.0 $425.00
$340.99

0238M300 383 - 3-1/88-1/86.0 $425.00
$340.99

0238M312 383-1/28-1/86.0 $425.00
$340.99

0238M314 383-1/4 - 3-3/88-1/86.0 $425.00
$340.99

0238M334 383-3/48-1/46.0 $500.00
$400.99

0238M400 3848-1/46.0 $500.00
$400.99

0240M200 402 - 2-1/88-1/86.0 $425.00
$340.99

0240M212 402-1/2 - 2-5/88-1/86.0 $425.00
$340.99

0240M214 402-1/4 - 2-3/88-1/86.0 $425.00
$340.99

0240M234 402-3/4 -2-7/88-1/86.0 $425.00
$340.99

0240M300 403 - 3-1/88-1/86.0 $425.00
$340.99

0240M312 403-1/28-1/86.0 $425.00
$340.99

0240M314 403-1/48-1/86.0 $425.00
$340.99

0240M334 403-3/48-1/46.0 $500.00
$400.99

0240M400 4048-1/46.0 $500.00
$400.99

0245M212 452-1/2 - 2-5/88-1/810.0 $465.00
$372.99

0245M214 452-1/4 - 2-3/88-1/810.0 $465.00
$372.99

0245M234 452-3/4 -2-7/88-1/810.0 $465.00
$372.99

0245M300 453 - 3-1/88-1/810.0 $465.00
$372.99

0245M312 453-1/28-1/810.0 $465.00
$372.99

0245M314 453-1/48-1/810.0 $465.00
$372.99

0245M334 453-3/48-1/410.0 $550.00
$440.99

0245M400 4548-1/410.0 $550.00
$440.99

0250M212 502-1/2 - 2-5/88-1/810.0 $550.00
$440.99

0250M234 502-3/4 -2-7/88-1/810.0 $550.00
$440.99

0250M300 503 - 3-1/88-1/810.0 $550.00
$440.99

0250M312 503-1/28-1/810.0 $550.00
$440.99

0250M314 503-1/48-1/810.0 $550.00
$440.99

0250M334 503-3/48-1/410.0 $620.00
$496.99

0250M400 5048-1/410.0 $620.00
$496.99

0255M212 552-1/2 - 2-5/88-1/810.0 $550.00
$440.99

0255M234 552-3/4 -2-7/88-1/810.0 $550.00
$440.99

0255M300 553 - 3-1/88-1/810.0 $550.00
$440.99

0255M312 553-1/28-1/810.0 $550.00
$440.99

0255M314 553-1/48-1/810.0 $550.00
$440.99

0255M334 553-3/48-1/410.0 $620.00
$496.99

0255M400 5548-1/410.0 $620.00
$496.99

0260M312 603-1/28-1/212.0 $620.00
$496.99

0260M314 603-1/48-1/212.0 $620.00
$496.99

0260M334 603-3/48-1/212.0 $620.00
$496.99

0260M400 6048-1/212.0 $620.00
$496.99

0260M412 604-1/29-1/812.0 $705.00
$564.99

0260M414 604-1/49-1/812.0 $705.00
$564.99

0260M434 604-3/49-1/812.0 $705.00
$564.99

0260M500 6059-1/812.0 $705.00
$564.99

0265M312 653-1/28-1/212.0 $620.00
$496.99

0265M314 653-1/48-1/212.0 $620.00
$496.99

0265M334 653-3/48-1/212.0 $620.00
$496.99

0265M400 6548-1/212.0 $620.00
$496.99

0265M412 654-1/29-1/812.0 $705.00
$564.99

0265M414 654-1/49-1/812.0 $705.00
$564.99

0265M434 654-3/49-1/812.0 $705.00
$564.99

0265M500 6559-1/812.0 $705.00
$564.99

0270M400 7049-1/414.0 $790.00
$632.99

0270M412 704-1/29-1/414.0 $790.00
$632.99

0270M414 704-1/49-1/414.0 $790.00
$632.99

0270M434 704-3/49-1/414.0 $790.00
$632.99

0270M500 7059-1/414.0 $790.00
$632.99

0270M512 705-1/29-5/814.0 $975.00
$780.99

0270M514 705-1/49-5/814.0 $975.00
$780.99

0270M534 705-3/49-5/814.0 $975.00
$780.99

0270M600 7069-5/814.0 $975.00
$780.99

0275M400 7549-1/414.0 $890.00
$712.99

0275M412 754-1/29-1/414.0 $890.00
$712.99

0275M414 754-1/49-1/414.0 $890.00
$712.99

0275M434 754-3/49-1/414.0 $890.00
$712.99

0275M500 7559-1/414.0 $890.00
$712.99

0275M512 755-1/29-5/814.0 $1,090.00
$872.99

0275M514 755-1/49-5/814.0 $1,090.00
$872.99

0275M534 755-3/49-5/814.0 $1,090.00
$872.99

0275M600 7569-5/814.0 $1,090.00
$872.99

0280M400 8049-1/414.0 $890.00
$712.99

0280M412 804-1/29-1/414.0 $890.00
$712.99

0280M414 804-1/49-1/414.0 $890.00
$712.99

0280M434 804-3/49-1/414.0 $890.00
$712.99

0280M500 8059-1/414.0 $890.00
$712.99

0280M512 805-1/29-5/814.0 $1,090.00
$872.99

0280M514 805-1/49-5/814.0 $1,090.00
$872.99

0280M534 805-3/49-5/814.0 $1,090.00
$872.99

0280M600 8069-5/814.0 $1,090.00
$872.99

0285M412 854-1/29-3/416.0 $1,540.00
$1,232.99

0285M434 854-3/49-3/416.0 $1,540.00
$1,232.99

0285M500 8559-3/416.0 $1,540.00
$1,232.99

0285M512 855-1/29-3/416.0 $1,540.00
$1,232.99

0285M514 855-1/49-3/416.0 $1,540.00
$1,232.99

0285M534 855-3/49-3/416.0 $1,495.00
$1,196.99

0285M600 8569-3/416.0 $1,495.00
$1,196.99

0290M412 904-1/29-3/416.0 $1,540.00
$1,232.99

0290M434 904-3/49-3/416.0 $1,540.00
$1,232.99

0290M500 9059-3/416.0 $1,540.00
$1,232.99

0290M512 905-1/29-3/416.0 $1,540.00
$1,232.99

0290M514 905-1/49-3/416.0 $1,540.00
$1,232.99

0290M534 905-3/49-3/416.0 $1,540.00
$1,232.99

0290M600 9069-3/416.0 $1,540.00
$1,232.99

0295M412 954-1/29-3/420.0 $1,700.00
$1,360.99

0295M434 954-3/49-3/420.0 $1,700.00
$1,360.99

0295M500 9559-3/420.0 $1,700.00
$1,360.99

0295M512 955-1/29-3/420.0 $1,700.00
$1,360.99

0295M514 955-1/49-3/420.0 $1,700.00
$1,360.99

0295M534 955-3/49-3/420.0 $1,650.00
$1,320.99

0295M600 9569-3/420.0 $1,700.00
$1,360.99
Customer Reviews (2)                       
5 star:
 
 (2)
4 star:
 
 (0)
3 star:
 
 (0)
2 star:
 
 (0)
1 star:
 
 (0)
 
5 stars - based on 2 customer reviews
  Login required to write a review

Most Helpful Customer Reviews

From Packing to Seals, Jun 25 2013 6:23PM
By: Capt. Cliff
After speaking with the guys at Deep Blue, I decided to take out the old packing boxes and replace them with shaft seals. No more constant drip and these were very easy to install. What I thought was going to be an all day project, ended up just being a couple of hours. Somehow they manage to sell the seals cheaper than I was quoted from the manufacturer. Will be back. Thanks for the koozie with my order.
 
A+++++++++++++++++++++++, Jul 2 2013 9:10PM
By: Kappa Squid
The dripless shaft seals from PYI are the way to go. Very easy to install. Saved a ton using Deep Blue
 

The PSS Shaft Seal Packless Sealing System is a dripless stuffing box and packing gland replacement for sailboat and power boat drivetrains.

The dripless shaft seal is a mechanical seal that uses a self-aligning carbon-graphite stator to ensure a 100% watertight seal with proven reliability.

This packless seal will eliminate shaft wear and minimize corrosion.

The PYI PSS Dripless Shaft Seal is the number one selling marine mechanical seal worldwide and is installed as standard equipment by many of the world’s most reputable boat builders & yards.

How Does The PSS Mechanical Shaft Seal Work?

A mechanical shaft seal is created by the contact of a turning surface against a stationary surface. In the case of the PSS Dripless Shaft Seal, the stationary surface is a carbon flange held in contact against a stainless steel rotor which turns with the shaft. The carbon flange is attached to the boat by a nitrile bellow which, with the help of water pressure, produces a constant contact between the carbon and the stainless steel ring. These type of seals are unaffected by engine motion or vibrations.

The result is a 100% watertight and totally maintenance-free dripless shaft seal.

Available for shafts from 20mm to 95mm. Larger sizes available upon request. Please use our 'Product Inquiry' Form, or call 1-800-454-6960 for larger sizes.

PSS Shaft Seals: Advantages

Among marine shaft seals, no other type sells better across the world than PSS shaft seals.  These marine mechanical seals are even included by default by many of the world’s finest boatyards, whose expert craftsmen consider them to be standard equipment.  PSS stands for “Packless Sealing System,” which is an excellent description of the technology that makes these seals so exceptional.  These marine shaft seals function without as much constant attention as other kinds of sealing systems.  In particular, PSS marine shaft seals do not need to be adjusted often and they free boating enthusiasts from the need for frequent maintenance.

In addition, a PSS Shaft Seal is completely watertight, which means that water will not accumulate in the bilge.  This feature also helps to cut down on wear and tear to the shaft of the propeller so that boating enthusiasts can enjoy a trouble-free watercraft experience for a long while to come.

PSS Shaft Seals are simple to install, even in retrofit situations, and can fit shafts as small as ¾ inch and as large as six full inches or 150 mm across.  In essence, the PSS marine shaft seal consists of a face seal between the two flat surfaces provided by a carbon flange, which remains stationary, and a rotor, which rotates.  The shaft seal serves to compensate as the propeller produces thrust.  This helps to eliminate not just problems caused by vibration, but also those that are a result of small misalignments.  A key part of these seals is the use of O-rings that rotate along with the shaft so that they will not wear down over time.

Parts of a Marine Shaft Seal: The Flange

Boating enthusiasts with more than a casual understanding of their boats and motors know that marine shaft seals play an essential role in helping a propeller do its job to full capacity. PSS shaft seals are comprised of several components that require engineering to exacting specifications so that the system works as intended.

The Flange

High quality marine shaft seals feature a flange made of carbon fabricated to have a high density. Some PSS shaft seals are advertised as having flanges made of “graphite” instead, but this term simply refers to a particular crystalline structure of the element carbon. When installed, the face of this carbon or graphite flange will rub against the rotor face of the shaft seal when the propeller is first switched on. This is by design, not coincidence; the rubbing action guarantees that a flawless seal will be established.

This aspect of the flange explains why “high density” carbon is so important. The rubbing action will quickly wear away or damage the flange itself if it is made of material that is not extremely hard and durable. Flanges made of high-density carbon or graphite have excellent wear resistance and can perform their duties for a long time. In addition, the carbon helps to prevent overheating incidents inside the shaft seal, as carbon can withstand temperatures as high as 400 degree Fahrenheit. When flanges are made of cheaper materials, such as synthesized plastics and their derivatives, overheating can become a real concern.

Marine shaft seals

Ocean going craft are designed to resist sea water. The engines are not always designed to keep the corrosive substance out. This may seem strange to the boat owner, but there is a good reason why the manufacturers let the damaging substance into the confines of the engine.  The design lets the user cool the engine without the cooling systems people use in their cars. The boat manufacturers give the user a choice between destruction by over heating or a destruction that is slower but is just as sure. Boat owners can overcome this problem by using a PSS Dripless seal. The seals are used in many different types of private and commercial craft. Many different commercial operations have come to use it in their operations.

Boating enthusiasts need to protect their investment. Engines can be replaced, but they are one of the more expensive parts of any water craft. The owner can spend a few minutes with the sealer if he wants to keep salt water out of the boat. The sealer prevents the water from entering. Most boats are rated for one drip per minute. Although the heat of the engine prevents water from reaching the sensitive areas, the salt and other chemicals remain. A customer uses this unit can protect the shafts of most boats. He needs to be careful not to go over 150 millimeters.

The reader already knows the benefits of the seal. He may wonder how and where he needs to install the item.  A boat owner with a small amount of mechanical skill places it between the steel rotor and the carbon flange. The product is designed to keep the motion of the rotor from harming the flange. The reader may wonder how he can keep his engine cool. PSS dripless seals are designed to use the pneumatic expansion of air to keep the temperature of the engine down. If the user wants to extend the life of his engine, he can add a steal collar in addition to the seal. The watertight seal also causes the motor to undergo less stress in operation. This extends the life of the engine.

Boat owners need to replace their engines periodically.  People can reduce the time between engine replacements by installing the PSS dripless marine shaft seal. There are many types of marine shaft seals. The owner needs to make sure he does not waste his money.

Fast Shipping, Lowest Prices, No Sales Tax



Site Map
  Processing...