法兰标准
Flange Standard

法兰密封面形式及相关尺寸
Form and correlative dimension for flange sealing face

结构长度
Structural length

试验与检验标准及要求
Standard and requests for test and inspection

阀杆是否加长
Whether the stem needs lengthen

主体与内件材质的要求
Requests for main body and inside material

使用温度
Applicable temperature

使用介质成份 ( 是否含颗粒及纤维物等 )
The components of applicable medium (whether they contain grain, fibers, etc. )

安装环境
Installation Environment

防火、防静电要求
Request for fire-proofing and static-prevention

阀门开关频率
Valve switch frequency

对驱动装置的特殊要求
Special requests for driving instrument

其它要求
Other requests