Q641H-16Q 球墨铸铁法兰气动球阀
设计、制造标准Standard for design and manufacture
1.设计制造按GB/T12237-89
2.法兰连接尺寸按:JB/T79-94
1.DesignManafacfure According to GB/T 12237-89
2.FlangeDimensionAccording tojB/T 79-94
阀体Valve body WCB lCr18Ni9Ti 1Cr18Ni12M02Ti
球体Sphere 2Cr13 lCr18Ni9Ti 1Cr18Ni12M02Ti
阀杆Valw stem 2Cr13 lCr18Ni9Ti 1Cr18Ni12M02Ti
