Bellows globe valve is a kind of stop valve, general stop valve packing and stem friction is found in the switching process, packing will be wear and failure, especially in the occasion of high temperature and low temperature, packing will heat bilges cold shrink, and tighten the packing can produce changes in packing seal failure; Case packing place is easy to freeze at low temperature in the process of the switch, packing are easy to be scraped ice. Corrugated pipe cut-off Industrial Valves, particularly prominent performance in these two aspects, it has a double seal to ensure zero leakage, but also reach the standard helium mass spectrum detection of zero leakage, very safe and reliable. Bellows cycle can reach more than ten thousand - cycle without destroying, far more than ordinary packing seal of cut-off valve switch life several times. In addition, the bellows valve can prevent the dust into the valve body, guarantee the purity of the medium, such as the high purity silicon powder, pure oxygen, food, such as vacuum conditions, corrugated pipe cut-off Industrial Valves performance is very outstanding. Bellows globe valve advantages comparing with normal stop valve can be summarized as follows: 1. Bellows globe valve can achieve the helium mass spectrum detection of zero leakage standard, is very safe and reliable. 2. The service life of the corrugated pipe cut-off valve is much higher than normal cut-off valve, general stop valve packing is easy to damage, change of frequency. 3. Bellows globe valve stem seal with a layer of metal barrier, can be used both inside and outside the valve need high requirements of the absolute isolation conditions, such as oxygen. 4. Corrugated pipe cut-off valve, corrugated pipe scaling, not affected by heat bilges cold shrink, the medium temperature gradient is bigger, it has very obvious advantages. 5. Corrugated tube valve with dual seal, under the condition of the corrugated pipe in good condition, the packing and the dielectric isolation, completely good protection of the packing, greatly extend the service life.
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