If the valve body material can be welded, but very different thermal expansion coefficient, or changes in operating temperature range of a larger thread junction closure weld must be honey.
如果阀体的材料是可以焊接的，但膨胀系数差异很大，或者工作温度的变化幅度范围较大，螺纹连接部必须进行蜜封焊。
High quality stainless pipe valve and seamless welded joint can ensure absolutely air conurbation and durability of pipe system.
高品质不锈钢的管道阀门，无缝焊接的连接口，以保证绝对的气体密闭性和管道系统的耐用性。
This valve is welded in fine steel, having the features of handy to operate, good seal, reliable performance and having the function of automatic air-locking dropping material.
采用优质钢材焊接而成，运行灵活、密闭性好、性能可靠，具有自动锁风落料的功效。
KMC production of fully welded ball valve diameter DN15-DN1500, the use of advanced design and manufacture of high quality standard ball.
KMC全焊接球阀的生产口径DN15 -DN1500，利用先进的设计制造出高品质的标准化球阀。
Germany RBT import external thread needle valve can be equipped with stainless steel welded pipe, and pipeline butt welding connection, but also through the outer nut removing the valve.
品牌：进口外螺纹针型阀可配带不锈钢焊接管，能与管道直接对焊连接，也可通过外螺母拆卸阀门。
The spiral vane is fixed on the central shaft, forming a whole body which is disposed at the middle of the spiral air locking valve body and is firmly welded with the spiral air locking valve body.
螺旋叶片固定在中心轴上形成一个整体置于螺旋锁风阀体的中间并与螺旋锁风阀体焊牢。
Fully welded ball valve is widely used in natural gas, oil, heat, chemical and thermoelectric pipeline network and other long-distance pipeline fields.
全焊接球阀广泛应用于天然气、石油、供热、化工及热电管网等长输管线领域。
The results shown that the rupture is caused by corrosion fatigue. The main reasons of failure of main vapour tube are unqualified valve material and unreasonable welded construction.
结果表明，断裂是由腐蚀疲劳引起的，阀体材质不舍格和焊接结构不合理是主蒸汽管失效的主要原因。
The valve is welded in fine steel, having the features of peculiar structure, non-obstruction, reliable and flexible operation.
鄂式闸门采用优质碳钢焊接成形，结构独特，运行灵活可靠，无卡阻现象。
The valve is welded in fine steel, having the features of peculiar structure, non-obstruction, reliable and flexible operation.
鄂式闸门采用优质碳钢焊接成形，结构独特，运行灵活可靠，无卡阻现象。
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