The bellows stop valve has the following advantages, and is used in dangerous media that is highly toxic and harmful to the human body:
1. Bellows seal:
The first seal adopts bellows, the American Vuitton VTON imported corrugated pipe is imported C276 material, which has excellent chlorine and corrosion resistance. The lower end and stem assembly and upper section and connecting body plate adopt the most advanced automatic thermal welding and welding. The technology and heat treatment, the structure forms a corrosion-resistant barrier between the pipeline medium and the outside, completely ensuring zero leakage between the valve stem portion and the upper and lower valve body, and the bellows has a telescopic life of at least 30,000 times.
2. Bellows stop valve fluoro rubber skeleton ring:
The second seal adopts a fluororubber skeleton ring. The structure of the skeleton ring is similar to the self-lifting seal ring. The greater the pressure, the better the seal is, the less likely it is to leak. The material is reinforced fluororubber, which has good elasticity, corrosion resistance and wear resistance. Anti-aging, excellent sealing performance, etc., to prevent the bellows from damage and play a second anti-leakage effect.
3. Bellows early warning device:
The bellows early warning device adopts a fluorine rubber sensitive bellows (or a pressure switch). When the leakage pressure reaches 0.027 MPa, the warning and alarm device is activated, which has high sensitivity, high fatigue frequency and stable and reliable performance. At the same time, the proximity switch and the explosion-proof ceramic piece are used to ensure the explosion-proof effect on the high-risk combustible medium.
4. Bellows shut-off valve finishing PTFE packing:
PTFE filler is formed by foreign advanced internal and external equal pressure and high temperature sintered PTFE finishing filler phase structure. The packing has good sealing performance, anti-aging, corrosion resistance, long service life, high sealing performance, small friction coefficient, and eliminates valve stem lock. occur. The packing seal is used to ensure that the valve can still operate normally without leakage when the warning device is activated in the event of a secondary seal failure. Therefore, the customer can arrange time to replace the valve and get enough safety time.
The high safety valve is designed.
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