一、进口大口径全焊接球阀
进口大口径全焊接球阀(美国威盾VTON),Large-diameter welded ball valve,是指口径DN200以上,最高DN3000,采用20号钢为阀体,以不锈钢为球体,采用全焊接的连接方式,采用碳强化PTFE斜面弹性密封圈负压在球面上,使密封达到零泄漏,大口径焊接球阀一般指口径DN>300的焊接球阀,一般采用涡轮转动形式。应用于天然气、石油、供热、化工及热电管网等长输管线领域
Large diameter welded ball valve (VTON, USA) refers to a welded ball valve with a diameter of DN200 or above and a maximum diameter of DN3000. It uses 20 # steel as the valve body and stainless steel as the ball, and adopts a fully welded connection method. It uses carbon reinforced PTFE inclined elastic sealing ring negative pressure on the spherical surface to achieve zero leakage. Large diameter welded ball valves generally refer to welded ball valves with a diameter of DN>300, and generally use turbine rotation. Applied in long-distance pipeline fields such as natural gas, oil, heating, chemical, and thermal power pipeline networks
二、进口大口径全焊接球阀性能参数
1):通径:DN200~3000
2):压力:PN 16 ~ 40
3):工作温度:-29℃ ~ +200℃
4):阀体:碳钢ST37.0,A106-B;20号钢
5):球体:不锈钢304或316
6):阀杆:2Cr13
7):阀杆密封:全氟像胶
8):球体密封:RTFE(PTFE+C)
9):输气管道焊接球阀适应介质:石油/汽油,液化天然气/液化石油气体, 石油化工,钢铁厂,供热管道等
10):输气管道焊接球阀操作方式:齿轮(垂直/水平),电动, 涡轮
三、进口大口径全焊接球阀应用领域
1):城市燃气:燃气输出管道、主干线及各支线供应管道等。
2):集中供热:大型供热设备输出管线、主干线、支线。
3):热交换机:管道及各回路启闭。
4):钢铁厂:各种流体管道、废气择放管道、煤气和热力供应管道、燃料供应管道。
5):各种工业设备、各种热处理管道、各种工业煤气和热力管道。
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