Labyrinth Seals

Your Professional Labyrinth Seals Supplier!

 

Wenzhou Zhengbang Bearing Co., Ltd. was established in 2007 and is located in Wenzhou, Zhejiang. Focus on providing the production and sales of high-quality plain bearings, babbitt bearings, bearings and mechanical non-standard accessories. Known for their superior wear resistance and low maintenance requirements, babbitt bearings are suitable for a variety of industrial applications, including marine, oil and gas, power generation, heavy industrial machinery, and more.

 

 
  • Φ80 Babbitt-lined Seal
    Babbitt Alloy Oil-Blocking Seal is a type of sealing component used to prevent lubricating oil from leaking. It is typically installed on the bearings or connecting parts of mechanical equipment...
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  • Φ150 Babbitt-lined Seal
    Babbitt Alloy Oil-Blocking Seal is a type of sealing component used to prevent lubricating oil from leaking. It is typically installed on the bearings or connecting parts of mechanical equipment...
    read more
  • Φ200 Babbitt-lined Seal
    Babbitt Alloy Oil-Blocking Seal is a type of sealing component used to prevent lubricating oil from leaking. It is typically installed on the bearings or connecting parts of mechanical equipment...
    read more
  • Φ300 Babbitt-lined Seal
    Babbitt Alloy Oil-Blocking Seal is a type of sealing component used to prevent lubricating oil from leaking. It is typically installed on the bearings or connecting parts of mechanical equipment...
    read more
  • Babbitt-lined Steps Seal
    Babbitt Alloy Oil-Blocking Seal is a type of sealing component used to prevent lubricating oil from leaking. It is typically installed on the bearings or connecting parts of mechanical equipment...
    read more
  • Thick Babbitt-lined Seal
    Babbitt Alloy Oil-Blocking Seal is a type of sealing component used to prevent lubricating oil from leaking. It is typically installed on the bearings or connecting parts of mechanical equipment...
    read more
 
Why Choose Us
 
 
 

Quality Control

Our products use advanced production technology and strict quality control processes to ensure that each bearing can meet or even exceed customer expectations.

 
 

Our Certifications

Our company has passed the ISO9001:2015 quality management system certification.

 
 

Rapid Delivery

We are able to keep items in stock for repeat customers, offering rapid delivery for those clients. Otherwise, standard lead times are typically five weeks.

 
 

Our Service

We have a professional customer service team to provide a full range of services from technical consultation, customized services, and after-sales support.

 
 

 

Φ80 Babbitt-lined Seal

 

Labyrinth Seals - Overview

A labyrinth seal is a type of mechanical seal that prevents the leakage of fluids or the ingress of contaminants by creating a tortuous, maze-like path for the fluid to travel. This path is designed to increase resistance to flow, effectively sealing without requiring direct contact between the rotating and stationary components.

 

Advantages of Labyrinth Seals
 

Non-contact Operation

Unlike traditional seals that wear out due to friction, labyrinth seals operate without direct contact, significantly extending their service life.

High-speed Suitability

Their non-contact nature makes them ideal for high-speed applications where contact seals would generate excessive heat and wear.

Durability and Reliability

Made from robust materials such as stainless steel or specialized alloys, labyrinth seals can withstand harsh operating conditions and maintain their integrity over long periods.

Efficiency

Labyrinth seals enhance machinery's efficiency by effectively reducing leakage, leading to better performance and lower operational costs.

 

 

Material and Components

Labyrinth seals are constructed in multiple pieces. One piece, known as the stator, is affixed to the machine and remains stationary. The other piece, called the rotor, is attached to the shaft and rotates with the motion of the system. The two pieces interlock to effectively seal out the majority of contaminants while holding in the lubricant or process fluid.

 

These types of seals are non-contacting, which means that the two opposing faces do not touch each other. They are also considered frictionless, as the rotor and stator are separated by a very small gap. In many instances, this gap can be as small as 0.003 inches, which equates to roughly 76 microns. This may sound like a large opening in comparison to the 1-micron lubricant film inside a rolling-element bearing, but because of the path that the contaminant must take to actually reach the bearing, this gap is more than adequate.

 

Our provide of different labyrinth seals are available, from bronze and stainless steel to plastic. The construction of the seals may even change between brands, with some employing magnets and others simply using O-rings to provide the necessary seat for the housing and shaft. However, they all operate on the same principle and must be properly installed to work correctly.

Φ300 Babbitt-lined Seal

 

 
 
Applications of Labyrinth Seals
01.

Turbomachinery

Labyrinth seals are crucial in gas turbines, compressors, and steam turbines, minimizing working fluid leakage and maintaining efficiency.

02.

Pumps

They are employed in centrifugal pumps to prevent leakage between the high-pressure and low-pressure sides of the pump.

03.

Gearboxes

Labyrinth seals help keep lubricants in and contaminants out, ensuring the smooth operation of gear mechanisms.

04.

Electric Motors

These seals prevent the ingress of dust and moisture, which can damage internal components and affect performance.

 

 

Certifications

 

 

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FAQ

 

 

Q: What is the purpose of a labyrinth seal?

A: The labyrinth seal is a controlled leakage seal used to prevent high-pressure gas leaking out of the case to the atmosphere and minimizes internal leakage.

Q: What is the difference between a lip seal and a labyrinth seal?

A: Unlike traditional lip seals, which rely on a contacting lip to form a barrier, labyrinth seals utilise a non-contacting design, making them particularly effective in high-speed applications.

Q: What is the clearance for a labyrinth seal?

A: A good rule of thumb for labyrinth seals is to set the radial seal clearance at . 001” per inch of shaft diameter for spring-backed seals. Also, set a minimum radial clearance at 1 ½ times the bearing clearance to avoid rotor dynamic problems.

Q: What does a labyrinth seal look like?

A: Labyrinth Seals (a.k.a. Leidenfrost Seals or Mini Maze) have maze-like peaks that form between the inner and outer rings. This unique design keeps contaminants out and ensures the inner and outer rings of the seal stay inseparable.

Q: How should labyrinth seals be maintained?

A: Each labyrinth seal provides a barrier of grease to prevent abrasive grit and corrosive fluid from attacking the shaft seals. In abrasive and corrosive operating conditions, labyrinth seals should be either continuously or periodically purged with grease to flush abrasive grit outward and away from the shaft seals.

Q: Are you manufacturer or trading company?

A: We are manufacturer.

Q: Do you offer OEM service or customized products?

A: Yes, produce on own brand, also offer OEM/ODM production.

Q: What's your best delivery time?

A: Within 15-30 days.

Q: What is the quality control of your product?

A: Follow strictly quality control measures for implementation,

Q: Will your company provide free sample?

A: It depends on which sort of item you want to get. Some can be provided free of charge, however, the client shall assume the shipping fees himself.

Q: Is OEM open to clients?

A: Yes, we can provide both OEM and ODM service.

Q: How can our company be your distribution partner?

A: We welcome you to be our distributor. For further details, please contact us.

Q: What is the payment of sample?

A: T/T and Alipay both acceptable.

We're professional labyrinth seals manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to buy customized labyrinth seals from our factory. Contact us for free sample.

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