The product application range of inflatable sealing rings:
1) Double doors, sliding doors, and flanged doors for various mechanical equipment, used for gas sealing, noise sealing, heat treatment sealing, and liquid sealing, such as oven door steam sealing, laboratories, cleanrooms, soundproof rooms for noise insulation, refrigeration rooms, building waterproof sealing, rear doors of trucks for sludge sealing, molding machines, coating machines for sand particle sealing, pharmaceutical coating machines, isolators, washers, dryers for sterile isolation operations, and glove leak detectors for post-sealing.MeasurementLeak wait
2) Installed on material conveying pipeline valves to form a sealed space for conveying powders, granules, and liquids.
3) Perform necessary stage controls on the packaging boxes on both sides of the packaging conveyor belt.
4) Necessary sealing for electronic product production process control and transportation equipment.

Firstly, let's get to know... Typical drawbacks of standard seals

Mechanical seal technology relies on a pair or several pairs of sliding end faces that are perpendicular to the shaft.They can maintain their seal under the influence of fluid pressure and other forces from the compensation mechanism, further enhanced by auxiliary sealing devices to achieve leak prevention. The mechanical seal ensures that the static ring's contact surface remains permanently in contact with the dynamic ring during movement. By generating an appropriate pressure differential between the static and dynamic rings and maintaining a layer of liquid film between them, the purpose of sealing is achieved.

Common mechanical seal leakage situations include the following: :

Leakage caused by damage to the sealing surface flatness

The damage to sealed surfaces is often characterized by uneven gliding marks and facial cutting scars. The cause may be due to deformation or damage to the pump's sealing chamber and the agitator's head.Or, it could be due to uneven bolt tension, which leads to deformation of the static ring's sealing surface and subsequent leakage. It may also be because of temperature changes and thermal expansion differences during the hot fitting of sliding components, causing the shape of the sealing surface to alter. This can result in the deterioration of the seal, leading to leakage issues.

Leakage caused by lubricant damage with a sealed surface

The lubricity of the end face seal is also very important.In addition to the sealing function provided by the face sealant film, lubrication is also essential for normal operation. Once the face sealant film is damaged, it can lead to immediate wear and roughening of the friction surfaces, and even cause cracking in some hard materials. When the temperature of the sliding friction surface rises sharply, if the heat accumulation is not immediately removed, it can result in the evaporation of the sealing fluid and the disappearance of the lubricating film, leading to scoring. Scoring can easily damage the sealing surface and creates numerous potential leaks.

Leakage caused by dynamic damage

The dynamic ring and static ring of the mechanical seal device rotate continuously with the shaft.The repetitive and frequent movements have been altering the sealing face, while also increasing the axial movement of the device. Over time, this gradually diminishes the precision of the mechanical seal. As a result, the various components of the device can sustain damage or deformation, losing their responsiveness and leading to seal leakage.

What factors can affect the operability of mechanical seals?Firstly, the accumulation of paste material can hinder the action of springs, cause uncontrolled movement of sliding components, and wear the surface of sealing faces, severely affecting the operability of mechanical seals; when sliding sealing surfaces experience wear, hardening, and aging, the shaft and sleeve can be damaged, and the spring seat may also wear down or bend.

A combination of various factors led to the leak.

The occurrence of leaks is sometimes due to a combination of various factors.Factors such as dry friction, poor sliding, sliding ring deformation, and flatness deformation can easily lead to leakage when compounded. Many of these causes are due to excessive fatigue, uneven pressure, and the breakdown of the liquid film.

  Jingtu Rubber has been dedicated to the production of inflatable sealing rings for nearly a decade.Over 2,000 varieties of inflatable sealing rings and abundant product development inspections are available. Recently, an increasing number of industries in China are trying to use inflatable sealing rings to address the issues caused by traditional sealing rings. Regarding how inflatable sealing strips work and other questions, the editor at Qingtu Rubber will give you a brief introduction:

Shape and Performance: The inflatable sealing rings are hollow seals made of rubber, equipped with valves on the body for connection to an inflation pump, used for pressurizing and depressurizing. After inflation, the body expands elastically; upon deflation, it fully retracts to its original shape. This type of mobile seal is its distinctive feature. They can be customized into circular, square, or linear sac shapes according to specific requirements.

2. Principle of Operation: The inflatable sealing ring operates by inflating to achieve a sealing effect. Due to the flexibility of rubber, the inflated rubber hollow ring becomes malleable. Upon contact between the expansion surface and the sealing surface, it undergoes flexible curve deformation, allowing for the sealing of gaps (ranging from several to hundreds of meters) in linear or curvilinear shapes. Upon deflation, the sealing ring instantly returns to its original shape, restoring the equipment gap. It can quickly achieve both sealing and unsealing, with frequent inflation and deflation capable of up to one million cycles. In the operational state, the internal gas pressure of the ring body ensures high sealing strength, resulting in excellent airtightness and sealing performance.

Sectional Structure Features: Designed different hollow structure shapes in circular, trapezoidal, rectangular, M-shaped, and composite cross-sections of the ring bodies, based on sealing gap dimensions, fluid pressure, and expansion-contraction frequency.

4. Sealing Direction: Generally categorized into axial sealing, outer diameter sealing, and inner diameter sealing.

5. Installation: Ensure the inflatable seal is fully installed within the steel channel or rigid PVC channel to prevent friction during the sliding process.

6. Application: The inflatable sealing rings offer excellent sealing performance, are easy to replace, and are being increasingly utilized across various industries.