![]() ![]() Long-term high-pressure action will permanently deform the flat washer. The working pressure of the hydraulic system of construction machinery is also gradually increasing, and the equipment has a long operating cycle. The influence of pressure on permanent deformation The pressure of hydraulic system is an important factor that causes permanent deformation of flat washers. For flat washers that work at sub-zero temperatures, the elasticity of rubber materials that are not resistant to low temperatures will decrease sharply at -50☌ to -60☌, and the stamping parts will lose their elasticity.Ģ. Low temperature will reduce the elasticity of the rubber material, or even disappear. ![]() When the permanent deformation is greater than 40%, the flat gasket loses its sealing ability and leaks. The higher the operating temperature, the greater the compression variable of the flat washer. High temperature will accelerate the aging of rubber. The influence of temperature on permanent deformation. As a result, the sealing effect is reduced, and finally leakage occurs.ġ. Permanent deformation Since the synthetic rubber material used in the flat gasket is an elastic material, the initial design of the pressing amount and rebound blocking ability of the stamping parts after long-term use, what are the uses of the flat gasket in the installation and use, the elasticity is reduced, and permanent deformation occurs. Dimension of DIN 7989 as below: Size I.D O. Under high temperature and high pressure working conditions, the main reason for the failure of flat gaskets is permanent deformation, squeezing into the sealing gap and distortion during movement. DIN 7989, Thick Flat Washer, The thickness much thicker than regular type. Learn more about how you can contact us and how we process personal data in our Privacy Policy.In the use of construction machinery, flat gaskets are widely used in hydraulic systems. DIN 125, DIN 9021, DIN 433, DIN 440R, DIN 7989 Flat Washer(id:5996227), View quality DIN 125 FLAT WASHER, DIN 9021 FLAT WASHER, DIN 433 FLAT WASHER details. You can at any time change or withdraw your consent from the Cookie Declaration on our website. For all other types of cookies we need your permission. The law states that we can store cookies on your device if they are strictly necessary for the operation of this site. Cookies can be placed by the server of the website or application that you visit, but also by third-party servers that may or may not work with this website or application.Ĭookies generally make the interaction between the visitor and the website or application easier and faster and help the visitor to navigate between the different parts of a website or application. The cookie file contains a unique code with which your browser can be recognized by the website or web application during the visit to the online service or during successive, repeated visits. ![]() Cookies are small data or text files that are installed on your computer or mobile device when you visit a website or use a (mobile) application. ![]()
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