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PSS Type A - Mechanical shaft seals
PSS Type A - Mechanical shaft seals
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PSS type B
PSS type B

PSS Pro seal

(32 customer reviews)

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.

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Category:
Description

BENEFITS:

This seal satisfies the requirements for commercial vessels.

OPTIONS

An additional shaft retaining collar can be installed to protect this component. This component helps to keep the shaft inside the vessel in the event of coupling failure or breakage. Due to its simple design the CRE is easy to install with the shaft in place. Available for installation on shafts from 1″ (25mm) to 3″ (80mm) in diameter.

DIMENSIONS AND SIZES:

1 ¼ ” (32 MM) TO 3 ¾” (95 MM):SHAFT DIAMETER.
1 ¾ “(45 MM)” TO 6″ (152MM): STERN HORN DIAMETER
8″(203MM) TO 11″ (279MM): APPROXIMATE COMPRESSED LENGTH.

MATERIALS:

-13 to 425 F (-25 c to 220 C): TEMPERATURE LIMITS.
40 PSI (2.75 BAR: PRESSURE LIMITS
10,000 RPM: SPINDLE RPM’S LIMIT
LAPPING TO 4 HLB (0.000044″ TOLERANCE): CARBON GRAPHITE
FACED TO 9 Ra: STAINLESS STEEL 316 S/ NITRONIC 50
ARAMID/MOLDED FUSED SILICONE: RUBBER BELLOWS MATERIAL
MOLDED NITRILE: RUBBER BELLOWS MATERIAL

What makes this product special?

THE PSS PRO SEAL IS A PROVEN TOP QUALITY PRODUCT WORLDWIDE, WITH OVER 200,000 UNITS CURRENTLY IN OPERATION AROUND THE WORLD.
A LARGE NUMBER OF COMMERCIAL VESSELS HAVE LOGGED OVER 40,000 (4-½ YEARS OF CONTINUOUS OPERATION) HOURS ON ENGINES USING THE SAME ORIGINAL COMPONENTS.

Reviews (32)

32 reviews for PSS Pro seal

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Request a quote

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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.
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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.