Double-layer PTFE coated O-ring 29.7*3.55

Double-layer PTFE coated ring.*3. Product features: corrosion resistance, high temperature resistance, second only to perfluoroether in use.
The specification has the smallest inner diameter and the smallest wire diameter. For other specifications and sizes, please call for consultation
Operating conditions: Temperature ~℃ ~ Pressure: -Application fields: Commonly used in the chemical industry and oil refining.
Product Description PTFE double-layer seamed covered ring is made of PTFE sheet covered with a silicone or fluorine rubber core through a special process. It has two layers, an inner and an outer layer, with staggered circumferential seams. .
The main advantages are strong resistance and versatility. It is suitable for almost all chemical media. Under normal use temperature, it is only corroded by a few chemicals. Here we only list the chemicals that are not compatible with it. Incompatible with chemicals such as some metal strong bases, fluorine and some halides.
, Temperature applicable range - ℃ ~ ℃, can be used at a high temperature of 3 ℃ for a short time
The existence of the outer coating with good compression resistance makes 3 have good resistance to hardening and brittleness, and the silicon The rubber or fluororubber inner core allows 3 to maintain good elasticity at high temperatures of ℃. Test results show that the 3 sealing ring formed by combining the physical properties of silicone rubber or fluorine rubber with the chemical properties has good compression resistance while maintaining rubber properties.
Anti-friction Due to the extremely low friction coefficient (.) of polytetrafluoroethylene, it becomes the variety with the smallest friction in the ring family. It is of great help in reducing equipment wear and improving equipment power and efficiency. support.
, High pressure resistance can be up to 3. It is recommended to use a retaining ring type pressure ring for the above pressure.
, Excellent sealing durability and long service life 3 Compared with any other rubber or pure ring, it has unparalleled sealing performance and long life, especially when used in harsh media.
, moderate hardness, the average hardness of sealing rings made of different materials is solid silicone rubber - solid fluorine rubber - hollow silicone rubber -, clean and environmentally friendly, non-toxic, cleanliness and temperature resistance at normal use temperatures make it a food It is one of the necessary production equipment accessories in scientific research and production fields with extremely high hygiene requirements such as medicine, fine chemicals, and bioindustry.
Main application areas: pumps and valves, reaction vessels, mechanical seals, filters, pressure vessels, heat exchangers, boilers, pipeline flanges, gas compressors