Product features: corrosion resistance, high temperature resistance, use only next to perfluoroether.

Operating condition: temperature - 30-250 ℃ pH: 0-14

Pressure: 0-35mpa

Application: commonly used in chemical industry and oil refining.

Product Description: PTFE double-layer seamed O-ring is coated on the inner core of silica gel or fluororubber with PTFE sheet by special process, with two layers inside and outside, and the circumferential joints are staggered by 180 °.

Main advantages:

1. It is highly resistant and versatile. It is applicable to almost all chemical mediums. At normal use temperature, PTFE is only eroded by a few chemicals. Here, only chemicals that are not compatible with it are listed, such as some metal strong bases, fluorine and some halides that are not compatible with PTFE.

2. Temperature application range - 60 ℃ ~ 260 ℃, which can be used for a short time under high temperature of 300 ℃

3. The existence of PTFE coating with good compression resistance makes rd31 have good hardness resistance and brittleness resistance, and the inner core of silicone rubber or fluororubber makes rd31 keep good elasticity at high temperature of 205 ℃. The test results show that the rd31 sealing ring formed by combining the physical properties of silicone rubber or fluororubber with the chemical properties of PTFE has good compression resistance while maintaining the rubber properties.

4. Friction resistance: PTFE PTFE has the lowest friction coefficient (0.29), which makes it the lowest friction force of O-ring family. It is of great help and support to reduce equipment wear and improve equipment power and efficiency.

5. It can withstand high pressure up to 35MPa, and it is recommended to use retaining ring type pressure ring for pressure above 5MPa.

6. Excellent sealing durability, long service life rd31 has incomparable sealing performance and long service life compared with any other rubber or pure PTFE O-ring, especially in harsh media.

7. The average hardness of rd31 sealing ring with moderate hardness and different materials is:

Solid silicone rubber: 75-85

Solid fluororubber: 85-90

Hollow silicone rubber: 70-75

8. The innocuity, cleanness and temperature resistance of clean environmental protection under normal use temperature make it one of the necessary production equipment accessories in the scientific research and production fields with high health requirements, such as food, medicine, fine chemical industry and biological industry.

Main application fields:

Pump and valve, reaction vessel, mechanical seal, filter, pressure vessel, heat exchanger, boiler, pipeline flange, gas compressor