Click to enlarge
PSS Pro seal
Back to products
Rudder seal

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.

Download file

 

ASK OR QUOTE HERE
By completing the form, one of our advisors will reply to you as soon as possible.
374 People watching this product now!
Category:
Description

BENEFITS:

THIS SEAL SATISFIES MOST REQUIREMENTS FOR COMMERCIAL VESSELS.

OPTIONS

MULTI-SCREW FLANGE WITH DIAPHRAGM SYSTEM OR STANDARD MULTI-SCREW FLANGE FOR COUPLING TO STERN HORN

DIMENSIONS AND SIZES:

4″ (100 MM) TO 6″ (150 MM): SHAFT DIAMETER.
51/2″ “(140 MM)” TO 8 5/8″ (220 MM): STERN HORN DIAMETER
12.189″(310MM) TO 13.250″ (337 MM): APPROXIMATE COMPRESSED LENGTH.

MATERIALS:

-13 to 425 F (-25 c to 220 C): TEMPERATURE LIMITS.
50 PSI (3.5 BAR): PRESSURE LIMITS
7,000 RPM: SPINDLE RPM’S LIMITS
LAPPED TO 4 HLB (0.000044″ TOLERANCE): CARBON GRAPHITE
FACED TO 9 Ra: STAINLESS STEEL NITRONIC 50
ARAMID/MELTED SILICON FUSED MANDREL: RUBBER BELLOWS MATERIAL

What makes this product special?

THE MOST TRUSTED MECHANICAL SEAL FOR COMMERCIAL WORK BOATS
OVER 20 YEARS OF USE IN THE COMMERCIAL MARINE INDUSTRY

Related products

Quick view

Dynamic Rotor O-Ring Kit

Read more
PRICE From $4.75 to $6.25 USD FEATURES Includes O-ring (2 units), fixing screws (5 units), Allen key, retaining compound, and clamp jackets (4 units)
Quick view

Adapter set T

Read more
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.
Quick view

Retention collars for shafts

Read more
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.
Quick view

Maintenance kit

Read more
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.
Quick view

Rudder seal

Read more
PRICE From $300 to $605 USD FEATURES For commercial and recreational vessels
Quick view

PSS Pro seal

Read more
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.
Quick view

PSS Type A – Mechanical shaft seals

Read more
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.