We – EPG Group the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears factory in China with 5 various branches. For more information: Cell/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828

We have CNC devices and cooperate with universities and research establishments and have rubber material study and improvement crew.
We established prolonged-phrase cooperative relations of technological innovation skills with HangZhou University of Science & Technology, ZheJiang College of Technological innovation, northwe EPT Rubber Institute, every batch on personnel education, improve the workers technological amount and cultural construction, generating a number of company elites. It lays a solid foundation for the wholesome advancement of the organization.
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Tel: 0086~13083988828 13858117778933828740

Y-kind seal:
Use:Extensively used in reciprocating sealing gadget, its daily life is increased than the O-ring. Y-ring for the working force of not far more than 40MPa, the doing work temperature of -thirty ~ 80 ºC.
category:
Y-ring in accordance with the duration of the cross-area ratio of distinct, can be divided into vast-kind Y-ring, slender-sort Y-ring and Yx-ring and so on. Wide part of the Y-ring strain resistance is marginally more compact than the slender-variety Y-ring, can only utilize to P <20MPa working environment, and narrow-type Y-ring can be used for working pressure P <32MPa occasions.
Y-ring in accordance with the peak of the two lips are the identical, but also can be divided into shafts with unequal lip Y-ring, the gap with the unequal lip Y-ring and shaft gap widespread substantial-lip Y-variety seal ring. Y-ring manufacturing materia EPT are different, but also can be divided into nitrile rubber Y-ring, fluorine rubber Y-ring, polyurethane rubber Y-ring and so on. [1] 
Functioning speed assortment: the use of small eyes rubber generation is . 01 ~ 0.6m / s with fluorine rubber generation, the .05 ~ 0.3m / s utilizing polyurethane rubber manufacturing, in contrast with .01 ~ lm / s. Y-ring sealing efficiency, provider life and the functioning force of various Dang Quan restrict, with polyurethane rubber substance is greater.

Sealing theory:
The Y-ring sea EPT once again EPT its sealing lip by its open up lip. When there is no inside pressure, only a small make contact with force is produced owing to deformation of the suggestion. In the circumstance of sealing, there is a normal stress equal to the stress of the medium at each point of contact with the sealing medium so that the bottom of the lip ring will be compressed axially and the lip will be compressed in the circumferential course to grow to be broader in speak to with the sealing surface area, While the get in touch with tension boosts. When the inside strain and then improved, the speak to stress distribution and dimensions of the additional adjustments in the lips and sealing floor with a lot more intently, so greater sealing, which is Y-ring “self-sealing impact.” Simply because of this self-sealing impact, a Y-ring can successfully seal the substantial force of 32MPa.
The effective sealing pressure of the pressure-placing seal is equivalent to the sum of the pre-strain and the fluid strain. Y-formed seal through the part of the lip will be effective in the part of the fluid stress on the seal, the pre-force can be decreased to a small benefit, and the greater fluid stress, the part of pre-pressure in the higher-force, the role of pre-pressure can be ignored Excluding. At this time, it is useful to minimize the sealing frictional pressure simply because the sealing frictional force is proportional to the sealing get in touch with pressure. So Y-shaped seal to guarantee that the seal at the same time, the friction is much less than the squeeze-variety seal.
Y-formed ring is mainly utilized for reciprocating seal, its operating basic principle, Y-ring installation, the lip to the side of the substantial pressure to enjoy a role, so Y-shaped ring can only enjoy a role.
When the coupling moves at relative pace, a sealing oil movie is formed between the sealing lip and the sliding surface. The existence of the oil movie can improve the friction situation of the sealing ring and decrease the dress in. The oil movie performs the position of sealing in the pneumatic sealing. In the reciprocating movement of the hydraulic factor, the oil film thickness is different when the movable member is prolonged and retracted, and this accumulation of the film thickness big difference triggers the leakage. Therefore, the Y-ring typical operate, there are really couple of leakage happens, the reciprocating speed, the leakage quantity. This is simply because the reciprocating velocity, the frequency of reciprocating becomes really regular, while the oil movie fluid energy to increase the movie thickness, the development of the rapid accumulation of oil film. When the viscosity of the functioning oil boosts, the oil film thickness increases, the reciprocating pace triggered by leakage also improved. However, as the hydraulic oil viscosity decreases with escalating temperature, so the hydraulic gear begins at lower temperatures, the starting of the motion of the greater leakage, with the movement due to various losses triggered by temperature increases, the leakage will gradually cut back.
Pistons in the reciprocating stroke of the leakage circumstance is distinct. When the internal stress is minimal, the sum of leakage in the extraction stroke increases with the improve of interior stress, and decreases with the boost of the interior stress throughout the pressing stroke. When the inside strain is massive adequate (about much more than 7.5MPa), the leakage will no more time alter with the interior strain.
When the inner force p1 Y-ring is low, the friction raises with escalating internal pressure. When the internal pressure is big ample, the friction is no longer a great alter. This kind of as very good lubrication, or even a downward pattern. EPT start off on the Y-ring friction te EPT final results display that the beginning friction and parking time has little to do with the O-ring is the bigge EPT distinction.
This is extremely helpful for intermittent transferring machinery. At the same time, when the inside stress is decrease, the starting friction increases with the internal force, when the interior strain exceeds 5MPa, the starting friction will be impartial of the interior force. So for substantial-stress intermittent equipment, there will be no commencing friction is way too big issue. Seal lip wear, owing to the part of media force, lip with a certain diploma of computerized compensation.
Substance:

NBR nitrile rubber – appropriate for oil hydraulic oil, glycol hydraulic oil, diester lubricants, gasoline, h2o, silicon grease, silicone oil and EPT media employed. Is the mo EPT widely utilised, the lowe EPT co EPT of rubber seals. Not suited for polar solvents, these kinds of as ketones, ozone, nitrohydrocarbons, M EPT and chloroform. EPT use temperature assortment of -forty ~ 120 ºC.
HNBR hydrogenated nitrile rubber – has outstanding corrosion resistance, tear resistance and compression deformation traits, ozone resistance, EPT resistance, weather conditions resistance is much better. Far better than the nitrile rubber abrasion resistance. It is ideal for use in washing devices, automobile Mobile: +86~thirteen 0571 88828 engine methods and refrigeration techniques using the new environmentally welcoming refrigerant R134a. Is not recommended for use in alcohols, esters or fragrant remedy. EPT use temperature assortment of -forty ~ 150 ºC.
SIL silicone rubber – has exceptional heat resistance, cold resistance, ozone resistance, resistance to atmospheric aging homes. Has a good insulation houses. But the tensile energy than the regular rubber and not with oil resistance. Relevant to family appliances this sort of as electrical drinking water heaters, electric powered irons, microwave ovens and so on. Also applies to a variety of get in touch with with the human physique supplies, this kind of as water bottles, ingesting fountains and so on. It is not advised for use in mo EPT concentrated solvents, oils, concentrated acids and sodium hydroxide. EPT use temperature assortment of -55 ~ 250 ºC.
VITON Fluorine rubber – substantial temperature resistance is far better than silicone rubber, has superb temperature resistance, ozone resistance and chemical resistance, cold resistance is poor. For mo EPT of the oil and solvents are resistant, specially acids, aliphatic hydrocarbons, aromatic hydrocarbons and animal and vegetable oils. Suited for diesel motor, gasoline technique and chemical plant sealing needs. Not suggested for use in ketones, low molecular weight esters and mixtures made up of nitric acid. EPT use temperature selection of -twenty ~ 250 ºC.

We can layout and manufacture different rubber components, EPT is welcome
EPT is welcome.
 

We – EPG Team the bigge EPT gearbox & motors , vee pulleys, timing pulleys, couplings and gears factory in China with 5 various branches. For far more details: Cellular/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828 The use of original equipment manufacturer’s (OEM) component figures or logos , e.g. CASE® and John Deere® are for reference reasons only and for indicating product use and compatibility. Our business and the outlined replacement elements contained herein are not sponsored, accepted, or produced by the OEM.