Ammonia stop valve_working principle of bellows ammonia stop valve
Time: 2021-06-17 20:03:40 Source: Yonglong Valve Reading: zero second
Ammonia stop valve_working principle of bellows ammonia stop valve
The corrugated pipe stop valve for ammonia is also called the corrugated pipe ammonia stop valve. The valve cover and valve stem adopt the corrugated pipe sealing structure, which can completely eliminate the possibility of process medium leaking out from the valve stem movement clearance. This is one of the characteristics of Shanghai Yonglong ammonia stop valve.
Bellows ammonia stop valve Shanghai Yonglong
Due to the deformability and outstanding aging resistance of bellows elements, this bellows stop valve for ammonia completely overcomes the weaknesses of packing aging and temperature difference sensitivity that usually exist in packing seal valves. Secondly, the double sealing structure of bellows and packing is adopted, which has better safety and reliability. Therefore, it is widely used in the control system of combustible, toxic gas, corrosive, radioactive and other rare special media.
Bellows liquid ammonia stop valve Yonglong valve
Operating principle of stop valve for corrugated pipe ammonia:
The bellow stop valve for ammonia is applicable to gases and liquids with nominal pressure of PN1.6~6.4MPa and working temperature of - 29~350 ℃, and is widely used in steam, high-temperature heat transfer oil, gas, oil, liquid ammonia and other media. The metal bellows, the key component of the bellow ammonia stop valve, is automatically welded to the valve stem assembly at the lower end and to the connecting plate at the upper end, forming a metal barrier between the fluid medium and the atmosphere to ensure zero leakage of the valve stem; The switch has no friction, the seal is not easy to wear, and the opening and closing torque is small. This ammonia stop valve adopts a unique bellows seal design, thus completely eliminating the problem of stem packing seal leakage and meeting the leakage level requirements under strict working conditions. The zero leakage characteristic of the bellows liquid ammonia stop valve of "Shanghai Yonglong Valve Factory" has improved the safety of the equipment, saved a lot of energy, reduced maintenance costs, and provided a clean and safe working environment for industrial applications.
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