FVE is an outward U-shaped PTFE sealing ring with a special stainless steel spring in the end outward static seal. The materials that our company can make include various rubber materials (NBR, FKM, FFKM, SIL, EPDM, HNBR, CI, etc.), various polyurethane materials (oil resistance, hydrolysis resistance, high temperature resistance, food grade, ultra-wear resistance, etc.), various engineering plastics (PTFE, PTFE composite, ultra-high molecular polyethylene, PA, POM, phenolic resin, etc.) and metal materials.

keyword：Tetrafluoro series Engineering plastics series Rubber series Metal series

Products Detail

Parameters

The internal open type is suitable for internal positive pressure conditions. The C-ring is a typical self-sealing structure. When the medium pressure enters the C-ring in the working state, the pressure self-tightening effect is generated on the C-ring from the inside to the outside, that is, the greater the system pressure, the better the sealing effect. Due to the principle of opening and self-sealing, it is only necessary to overcome the elasticity of the sealing ring itself during installation, so a very ideal sealing effect can be obtained without using a large pre-tightening force. Our company adopts INCONEL 718 alloy to manufacture.

Standard material：PTFE + stainless steel, other materials are also available.
Application field：Pneumatic hydraulic systems, static or rotary motion, various fields of mechanical engineering.
Effect：Separate inner U-ring, sealing lip in various designs. This can achieve the best sealing state and reduce friction. This increases the life of the seal. Even in the unpressurized state, the metal spring ensures that the sealing lip is not leaked. Compensate for various thermal expansion phenomena.
Medium：All hydraulic fluids, hot air, steam, most chemicals.

Working Limits：
Temperature：-150°C ~+250°C (special material -268°C~ +343°C )
Pressure： 8.0-80MPa (please ask for higher pressure)
Face speed：Maximum 1m/s
For end face rotation, the machining accuracy of the friction surface needs to be higher.

Specifications and installation dimensions

Features:

1. Good sealing performance in gas and fluid applications

2. Large initial sealing force and good leakage prevention
3. Can be used in very large sizes and does not require installation tools

4. Can withstand rapid temperature changes

5. Sealing ability on non-ideal surfaces
6. Unlimited storage period

Application:

1. Compressor cylinder
2. Construction equipment and installations
3. Chemical processing
4. Crude oil and natural gas
5. Low temperature engineering
6. Nuclear power plants
7. Aerospace
8. Vacuum use
9. Rotary joint