Description
xPSS Pro Shaft Seal - 2 1/2" Shaft & 3 1/2" Tube
The PSS PRO Shaft Seal is a mechanical face seal utilizing our proven stainless steel and carbon sealing components but adds reinforced silicone bellows, a secondary shaft retention collar, 316 Stainless Steel hose clamps (rolled edges and non-perforated), and an optional Nitronic 50 rotor upgrade (for highly corrosive environments). Designed specifically for applications that will require increased durability and resistance to harsh, corrosive, high pressure, and otherwise demanding environments. The PSS PRO Shaft Seal is a specialized mechanical seal suitable for various applications, with unmatched performance.
As with PSS Type A & B Seals, The PRO Shaft Seal is a mechanical face seal. The sealing surface is created between the flat surfaces of the rotating stainless-steel rotor and the stationary carbon flange. The stationary carbon flange is attached to a heavy-duty silicone bellows attached to the vessel’s stern tube (shaft log), with 316SS hose clamps. The stainless-steel rotor is fitted on the shaft in front of the carbon flange and is used to compress the bellows, the rotor is then secured to the shaft with set screws, and the shaft retention collar is installed. This compression (pre-load) maintains constant contact between the two mating faces of the stainless-steel rotor and carbon flange, allowing the PSS to compensate for the variable axial movement due to propeller thrust. In addition, the carbon flange is over-bored to the shaft diameter allowing it to "float" around the shaft and thus compensate for most misalignment and vibration from the drive-line. The stainless-steel rotor is sealed to the shaft by two O-rings recessed into the rotor's bore. These O-rings rotate with the shaft and the stainless-steel rotor and therefore do not experience wear during operation.
Specifications
- Temperature Limits: -13°F to 425°F (-25°C to 220°C)
- Pressure Limits: 40 PSI (2.75 BAR)
- Shaft RPM Limits: 10,000 RPM
- Carbon Graphite: Lapped to 4 HLB (0.000044" tolerance)
- 316SS / Nitronic 50: Faced to 9 Ra
- Bellow Material: Molded formed silicone / fabric
Product Dimensions
- Shaft Dia. (A) 2-1/2"
- Stern Tube Dia. (B) 3-1/2" to 3-5/8"
- Uncompressed Length (C) 9.800"
- Approx. Compressed Length 8.800"
- Rotor Diameter (D) 4.2"
- Stern Cuff Length (E) 1.3"
Shipping & Return
xShipping
We ship orders across USA, If your order is in stock and we process the charges to your credit card, it will ship within one business day from the date of your order. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out. If you do not receive tracking information from us within three business days of your order, feel free to follow up with us at help@roamridge.com We offer free economy shipping for orders above $99, also we offer various flat shipping rates across the USA, However please also note that some products such as oversized, Truck shipping items are not covered in free or flat shipping rates. Please verify at checkout before making payment.
Overnight and Two day shipping orders will be shipped the same day if order is received before 2PM CST.
Returns Policy
Roam Ridge offers a return period of 30 days from date of receipt. Return Merchandise Authorization (RMA) numbers are required for all returns. Returned products must be complete in the original packaging and resalable. Non-stock items may not be returned. Opened and/or unsealed DVDs, CDs, and cartography are not returnable unless defective. Units requiring service, either warranty or otherwise, should be returned directly to the appropriate manufacturer. For most items, customers can obtain an RMA number and process their return using the Roam Ridge website. Customers may also obtain an RMA number by sending an email to help@roamridge.com Be sure to provide the original invoice number, product being returned, and the reason for return. Returned merchandise may be subject to a restocking fee of up to 15%.
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