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The description of the use characteristics of the pan-plug ring and the detailed introduction of the components

The description of the use characteristics of the pan-plug ring and the detailed introduction of the components

2022-09-16

Everyone should have heard of the pan plug seal, which is a sealing part with excellent use effect. Today, the editor of Damonson will share with you the relevant knowledge of Pan-Seal. Do you know what are the characteristics of the use of the pan-plug seal? What are the components of the pan-plug seal? The following is an introduction to "the description of the use of the pan-plug seal and the detailed introduction of the components.


【Composition and application characteristics of pan-plug seal】


Pan plug seal (full name: Pan plug spring tension energy storage support seal, also known as spring tension seal, spring energy storage seal) is a seal made of polytetrafluoroethylene or other high-performance materials with special springs built in. The force plus the system fluid pressure pushes the sealing lip (face) out and lightly presses the sealed metal face to produce a very good sealing effect. The actuation effect of the spring can overcome the slight eccentricity of the metal mating surface and the wear of the sealing lip, while maintaining the expected sealing performance. It can be used for oil, water, steam, air, solvent, medicine, food, acid and alkali, chemical solution, etc.


PTFE is the main material of the pan-plug sealing body, its chemical resistance is better than that of perfluororubber, and it is a sealing material with good heat resistance. It can be used in most chemical fluids, solvents, hydraulic oils and lubricating oils. Its expansion is small, so it can exert sealing performance for a long time. Various special springs are used to overcome the elasticity of Teflon or other high-performance rubber and plastics. Problems, developed to replace the vast majority of seals used in static or dynamic (reciprocating or rotary motion). The description of the use characteristics of the pan-plug ring and the detailed introduction of the components. Reasonable shell materials and support springs plus professional sealing design can make the temperature range of the pan-plug seal reach -200°C to 260°C, and the pressure can be from vacuum to ultra-high pressure. 200Mpa, the line speed is as high as 15m/s, so it can be used in various high and low temperature corrosive fluids and other occasions.


The pan plug seal can be made according to the AS568A standard O-ring groove (such as radial shaft seal, piston seal, axial face seal, etc.), completely replacing the general O-ring, or our company can provide a reasonable groove design. Due to the lack of expansion, the pan-plug seal can maintain good sealing performance for a long time. For example, for mechanical shaft seals used in high-temperature corrosive environments in petrochemical processes, in addition to uneven wear of the sliding ring, the common cause of leakage is the deteriorating cracking damage of the O-ring. , surface roughening, wear and other problems, thus greatly improving the service life of the mechanical shaft seal. In addition to the above-mentioned sealing applications in high temperature and corrosive environments, because of its low friction coefficient of sealing lip, stable sealing contact pressure, high pressure resistance, large radial runout and groove size error, Therefore, it is very suitable for sealing parts of air-hydraulic cylinders, replacing U-shaped or V-shaped tightening to obtain excellent sealing performance and service life.


Product features: The sealing performance is not affected by insufficient lubrication during startup, effectively reducing wear and frictional resistance. Through the combination of different sealing materials and springs, different sealing forces can be exhibited to meet various application requirements. It is processed by dieless CNC and has high dimensional progress, especially suitable for large quantities and various seals. The chemical corrosion resistance and heat resistance are far superior to the commonly used rubber seals, the dimensions are stable, and there is no problem of deterioration of the sealing performance caused by volume expansion or shrinkage. Compact structure, can be installed in standard O-ring groove. Because the sealing material is polytetrafluoroethylene or other high-performance materials, it is very clean, does not pollute, and has a very low friction coefficient, even in very low-speed applications, and there is no stagnation effect. Low starting friction resistance, even if the shutdown time is long or intermittent operation, it can maintain low starting power performance.


The main application of the pan plug seal:


The pan-plug seal is a special seal developed for the application environment of high temperature corrosion, difficult lubrication and low friction. The combination of different Teflon composite materials, engineering plastics and corrosion-resistant metal springs can fully meet the increasingly stringent industrial requirements. Diversity requirements, typical applications are as follows:


1. Axial seals for rotary joints of loading and unloading arms


2. Paint valve parts or seals for other paint systems


3. Seals for vacuum pumps


4. Beverage, water, beer filling equipment (such as filling valve) and seals for food industry


5. Seals for traditional industries of automobile, aerospace, chemical industry and petroleum


6. Seals for metering equipment (low friction, long life)


7. Seals for other equipment or pressure vessels (liquefied gas)


Sealing principle:


Teflon or other high-performance materials combined with appropriate spring, spring tension plus system fluid pressure, push the sealing lip out and lightly press the sealed metal surface to form a very good sealing effect. Oil, water, steam, air, solvent, medicine, food, acid and alkali, chemical solution, etc.


【Meaning and application characteristics of pan-plug seal】


Spring Seal is a kind of U-shaped Teflon high-performance seal with special spring inside, and the sealing lip (surface) is pushed out by appropriate spring force plus system fluid pressure. And lightly press the sealed metal surface to generate a very good sealing effect. The actuation effect of the spring can overcome the slight eccentricity of the metal mating surface and the wear of the sealing lip, and the flooded seal is more durable to maintain the expected sealing performance. The working conditions of the equipment are different between the step seal and the pan plug seal, and the pan plug seal is suitable for some environmental conditions with high product requirements. The special seals and pan-plug seals made by Dongsheng Seal and Youquan Seal are better.


Features


1. The sealing performance is not affected by insufficient lubrication at start-up


2. Effectively reduce wear and friction resistance


3. Through the combination of different sealing materials and springs, different sealing forces can be displayed to meet various application requirements. It is made by CNC machining machine without mold cost - especially suitable for a small amount of various seals.


4. The chemical corrosion resistance and heat resistance are far superior to the commonly used seal rubbers, the dimensions are stable, and there is no deterioration of the sealing performance caused by volume expansion or shrinkage.


question


1. Compact structure, can be installed in standard O-ring groove


2. Significant lifting capacity and service life


3. The groove of the seal can be filled with any anti-pollution material (such as silicone) - but not suitable for radiation environments


4. Because the sealing material is Teflon, it is very clean, will not pollute the process, and the friction coefficient is extremely low


5. Very, no "slip effect"


6. Low starting friction resistance, even if the shutdown time is long or intermittent operation, it can maintain low starting power performance.


The above descriptions of "components and application characteristics of pan-plug seals" and "meaning and application characteristics of pan-plug seals" hope to help you understand "the description of the use characteristics of pan-plug seals and the detailed introduction of components".


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