WORKING PRINCIPLE
Self-Aligning Combined Lip Seal and Packing for Large Shaft Slurry Seal Under Vacuum Situation
A self-aligning combined lip seal and packing solution is essential for large shaft slurry seals operating under vacuum conditions. This design aims to provide robust sealing capabilities while accommodating the challenges posed by vacuum environments and the nature of slurry materials.
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MAIN DESIGN FEATURES
Effective Sealing: Provides a reliable barrier against contaminants and retains lubricants.
Durability: Made from materials that withstand wear and tear, ensuring long service life.
Temperature Resistance: Capable of functioning in a wide range of temperatures.
Easy Installation: Designed for straightforward installation in various applications.
Versatile Applications: Suitable for use in automotive, industrial, and machinery settings.
Low Friction: Minimizes friction between moving parts, enhancing efficiency.
PROCESS
Rubber lip seals are the most important element in the design of rotary shaft seals for decades. The radial lip seals are widely used in wet environments like ships, water pumps and tidal turbines. The lip seals keep the oil or grease lubricant inside the application and prevents the ingress of water and dirt.
INDUSTRY
Lip seals work with a small contact area on the liner, which in turn is placed around the shaft. The seal works due to a hydrodynamic lubricating film between the lip seal and its counter surface, this area is called the sealing gap and the film thickness in general is a few microns. The lubricating film is most stable between two flattened surfaces, therefore over time, the lip seals tip will slowly wear to a small sealing surface. This effect also occurs on the liner, where a wear track is formed to the shape of the sealing surface of the seal. The liner can be outfitted in stainless steel, with or without a Hard Metal Layer (HML). To make sure the lip seals stay in place, they are clamped in bronze or cast iron housing parts.
Our rotating shaft seals are build-up with NBR, FKM or FKM-EAL lip seals, Hastelloy® C4 springs, liners, gaskets, O-rings and housing parts like metal rings. All our sealing solutions for rotating equipment contain two up to five lip seals to ensure a reliable operation. The required number of double lip seals depends on the application and environment. Some to form a barrier against water ingress and another to prevent lubricant leakage into the environment.
MODELS AND TECHNICAL SPECIFICATIONS
do | D | d1 | d2 | nxd3 | k | a | L | 11 | 12 |
380 | 683 | 576 | 378 | 24xø24 | 643 | 533 | 238 | 35 | 58 |
Special design on request
APPLICATION FIELDS
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