Hydraulic seal-Fluorine rubber-Nitrile rubber-Hongjia Rubber

The principle of achieving "self-sealing" effect: The pressure type seal in the contact dynamic seal is the contact pressure formed between the seal and the coupling surface through the pressing force generated by the pre-compression force and the medium pressure. The higher the medium pressure, the greater the contact pressure, which makes the seal The parts are tightly fitted with the coupling to block the leakage channel and achieve a "self-sealing" effect. The self-sealing self-tightening seal uses the back pressure generated by the deformation of the seal itself to increase with the increase of the medium pressure, so as to achieve the "self-sealing" effect.

Phenolic cloth support ring

Special-shaped oil seal

Under the condition of low pressure, the U-shaped Y-shaped sealing ring only relies on the interference deformation of the lip to generate the seal. Due to the small contact area, the friction force is relatively low. As the pressure increases, the elastic deformation of the lip increases, stretching, When the compression and bending stress increases, the radial pressure of the U-shaped ring automatically increases, and the length of the contact with the sealing surface continues to increase until the entire axial length of the U-shaped ring is in contact with the sealing surface, thereby ensuring good sealing performance under high pressure. The U-shaped Y-ring is the most commonly used oil seal in hydraulic cylinders. It is a typical lip seal and can obtain a good seal whether it is used for the piston or the piston rod.

Polyurethane

The wide variety of sealing materials increases the general adoption of the performance characteristics of the Y-shaped sealing ring. At the same time, the design of the sealing structure, through the skillful hands of Dongsheng designers, produces various types of seals to form the pursuit of the machinery and equipment industry. Select the correct sealing ring material according to the working equipment conditions of the hydraulic seal. The commonly used rubber materials for the hydraulic Y-shaped sealing ring include nitrile rubber (NBR) and fluorine rubber (FKM) with strong heat resistance and oil resistance; The polyurethane rubber material is selected for the requirements of abrasion resistance and pressure resistance.

fluororubber

The wide variety of sealing materials increases the general adoption of the performance characteristics of the Y-shaped sealing ring. At the same time, the design of the sealing structure, through the skillful hands of Dongsheng designers, produces various types of seals to form the pursuit of the machinery and equipment industry. Select the correct sealing ring material according to the working equipment conditions of the hydraulic seal. The commonly used rubber materials for the hydraulic Y-shaped sealing ring include nitrile rubber (NBR) and fluorine rubber (FKM) with strong heat resistance and oil resistance; The polyurethane rubber material is selected for the requirements of abrasion resistance and pressure resistance.

Nitrile rubber

The wide variety of sealing materials increases the general adoption of the performance characteristics of the Y-shaped sealing ring. At the same time, the design of the sealing structure, through the skillful hands of Dongsheng designers, produces various types of seals to form the pursuit of the machinery and equipment industry. Select the correct sealing ring material according to the working equipment conditions of the hydraulic seal. The commonly used rubber materials for the hydraulic Y-shaped sealing ring include nitrile rubber (NBR) and fluorine rubber (FKM) with strong heat resistance and oil resistance; The polyurethane rubber material is selected for the requirements of abrasion resistance and pressure resistance.

Polyurethane

The wide variety of sealing materials increases the general adoption of the performance characteristics of the Y-shaped sealing ring. At the same time, the design of the sealing structure, through the skillful hands of Dongsheng designers, produces various types of seals to form the pursuit of the machinery and equipment industry. Select the correct sealing ring material according to the working equipment conditions of the hydraulic seal. The commonly used rubber materials for the hydraulic Y-shaped sealing ring include nitrile rubber (NBR) and fluorine rubber (FKM) with strong heat resistance and oil resistance; The polyurethane rubber material is selected for the requirements of abrasion resistance and pressure resistance.

fluororubber

The wide variety of sealing materials increases the general adoption of the performance characteristics of the Y-shaped sealing ring. At the same time, the design of the sealing structure, through the skillful hands of Dongsheng designers, produces various types of seals to form the pursuit of the machinery and equipment industry. Select the correct sealing ring material according to the working equipment conditions of the hydraulic seal. The commonly used rubber materials for the hydraulic Y-shaped sealing ring include nitrile rubber (NBR) and fluorine rubber (FKM) with strong heat resistance and oil resistance; The polyurethane rubber material is selected for the requirements of abrasion resistance and pressure resistance.

Nitrile rubber

The wide variety of sealing materials increases the general adoption of the performance characteristics of the Y-shaped sealing ring. At the same time, the design of the sealing structure, through the skillful hands of Dongsheng designers, produces various types of seals to form the pursuit of the machinery and equipment industry. Select the correct sealing ring material according to the working equipment conditions of the hydraulic seal. The commonly used rubber materials for the hydraulic Y-shaped sealing ring include nitrile rubber (NBR) and fluorine rubber (FKM) with strong heat resistance and oil resistance; The polyurethane rubber material is selected for the requirements of abrasion resistance and pressure resistance.

Stephon

The installation and assembly of the step seal is also to install the O-ring first, and then install the wear ring of the step seal. When installing the wear ring, first press the wear ring inward in the diameter direction, and then install the wear ring to the groove. inside the groove, and then smooth out the deformation by hand. When installing in winter in the north, first heat the wear-resistant ring and then put it on the shaft. After cooling, install it according to the above method. When placing the shaft, you must pay attention to observe whether the shaft is completely inserted into the wear-resistant ring. At the same time, pay attention to the guide belt not to get stuck. Keep the shaft, otherwise the STE seal may be crushed because the guide belt is squeezed out of the groove.

Gray Circle

The Gree ring is composed of a rubber O-ring and a polytetrafluoroethylene ring. The material is PTFE + NBR. In special cases, the rubber elastomer nitrile rubber NBR adopts fluorine rubber FKM. It can be divided into grid ring for hole and grid ring for shaft, but its sealing effect is the same. According to its own deformation, it will produce higher initial contact stress on the sealing surface, preventing the leakage of pressureless liquid. When the hydraulic cylinder is working, the pressure liquid squeezes the square sealing ring to the maximum extent through the elastic deformation of the o-shaped sealing ring, so that it is close to the sealing surface and generates a higher additional contact stress that increases with the pressure of the pressure liquid. Together with the initial contact stress, the leakage of the pressurized liquid is prevented.

X-ring star ring

Referred to as star ring, also known as X-shaped ring, its size is represented by inner diameter d1 and section diameter d2. The star ring is a sealing element that can seal in two directions. It is installed in various forms of grooves and its radial or axial pre-compression gives the star ring the initial sealing ability, which increases with the increase of pressure. Great sealing force. Under the action of pressure, the cross-sectional shape of the star ring will make the pressure evenly transmitted to all sides, so it has a good sealing effect.

V-type fluororubber cloth oil seal

The V-shaped sealing ring has a V-shaped section and is also a lip-shaped sealing ring. The V-shaped sealing device consists of three parts: support ring, sealing ring and pressure ring. The standard angle of the V-shaped seal is 90°, and 60° is also used in special occasions. The support ring is an important part to support the V-shaped sealing ring. Its section is thick and strong, the size is accurate, and the concave angle is the same (90°) or slightly larger than that of the V-shaped sealing ring, so that the sealing ring can be placed stably. The function of the pressure ring is to create an initial compression amount for the V-shaped sealing ring to make it fully contact with the sealed surface, and to adjust the compression amount of the V-shaped sealing ring. EUB Industrial Design. China In the free state, the outer diameter of the lip of the V-ring is larger than the inner diameter of the packing cavity, and the inner diameter of the lip is smaller than the outer diameter of the piston rod. In this way, there will be some deformation after assembly. Due to the action of the support ring, this deformation occurs only at the tip of the lip and at its junction...)

V-type nitrile rubber cloth combination sealing ring

Product use: used for the sealing of the piston and the piston rod of the reciprocating ultra-high pressure hydraulic cylinder Scope of application: hydraulic cylinders for metallurgy, mining, general equipment

UPi Oil Seal

TDI oil seal

TDI type shaft sealing ring is composed of a high-performance polyurethane U-shaped oil seal and a PTFE slip ring added with bronze powder. Its special design can reduce the friction at the root of the oil seal and reduce the residual oil carried out of the piston rod. Used in conjunction with a single-acting wiper ring. There is interference at the PTFE ring, and it will generate stronger pressure on the piston rod after being subjected to oil pressure. Its function is similar to the step seal, so sometimes a single TDI oil seal can replace the main oil seal + buffer ring.

SGPW

Performance and use : SYPGW piston seal has good wear resistance, low friction coefficient and easy installation. Material : The main sealing material is imported composite PTFE, the support ring is POM, and the rubber is NBR (or FKM) 70Shore A. Working conditions: Working pressure: ≤50Mpa. Working temperature: -40~+110℃. Working speed: ≤1.2m/s. Medium: commonly used hydraulic medium. design standards: Groove dimensions conform to B+S's PHD and Parker's CT groove standards.

KDAS

KDAS combination sealing ring is a two-way acting piston sealing ring. This combination sealing ring is composed of an elastic rubber ring, two additional retaining rings and two wear-resistant rings. This design provides a compact combination of sealing and guiding, and is suitable for combined sealing rings installed in closed grooves. The combined sealing ring includes an elastic toothed sealing ring, two retaining rings and two wear-resistant rings. There is a real sealing element in the middle; a retaining ring and a wear ring are placed on each side. The retaining ring prevents the sealing ring from being squeezed into the gap; the sealing ring in the middle is a toothed sealing ring, which can play a good sealing role when it is stationary and moving. The function of the wear ring is to guide the piston in the cylinder and bear the radial force.

fluororubber

This product has a good dust-scraping effect, and even has a good dust-proof effect on firmly bonded dust. Wear-resistant, long service life, has the function of saving and returning the residual oil in reverse, using elastic material, which can reduce the friction force. Suitable for reciprocating, oscillating or rotary motion systems.

Fluorine rubber

The JA type dust ring is a seal used for dustproofing at the exposed part of the piston rod or valve rod of the reciprocating oil cylinder. Or it can be used anywhere as long as it plays a role in preventing dust. Wide range of use, easy installation and low cost are its biggest features.

Nitrile rubber

The JA type dust ring is a seal used for dustproofing at the exposed part of the piston rod or valve rod of the reciprocating oil cylinder. Or it can be used anywhere as long as it plays a role in preventing dust. Wide range of use, easy installation and low cost are its biggest features.

Polyurethane

The JA type dust ring is a seal used for dustproofing at the exposed part of the piston rod or valve rod of the reciprocating oil cylinder. Or it can be used anywhere as long as it plays a role in preventing dust. Wide range of use, easy installation and low cost are its biggest features.

Polyurethane

This product has a good dust-scraping effect, and even has a good dust-proof effect on firmly bonded dust. Wear-resistant, long service life, has the function of saving and returning the residual oil in reverse, using elastic material, which can reduce the friction force. Suitable for reciprocating, oscillating or rotary motion systems.

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