●特殊要求代号： K—抗硫型  L一调节型  ZB— 自动补偿

Special  requirement  code:K—Antisulphur  type  L—Adjustment  type  ZB—Auto  compensation

● 阀门类型代号： Z—闸阀

Valve type code:Z—Gate valve

●驱动方式代号：4—正齿轮传动  5—伞齿轮

传动  6—气动  6s—气动带手动  7—液动 9—电动(手轮传动略) 9g—防爆电动

Driving manner code:4—Spur gear driving  5—Bevel gear transmission  6—Pneumatic   6s—Take pneumatically manually

7—Hydrodynamic  driving    9—Electric driving (Hand wheel driving omitted)    9g—Explosion electric driving

●连接形式代号：4一法兰连接  6一对焊连接

Connecting  type  code:4—Flange-connecting   6—Butt welding connecting

●结构形式代号：3—明杆平行式单闸板 4—明杆平行式双闸板

Design feature code:3—Rising-stem parallel single-disc    4—Rising-stem  parallel  double-disc

●结构特点代号： W 一无导流孔(有导流孔省略) P—轻 型

Structure manner code:W—Non-diversion hole type (Diversion hole type omitted)    P—Light-duty

●密封面材质代号： Y一硬质合金  H—合金钢  D—渗氮钢  F—增强聚四氟乙烯

Sealing formation code:Y—Hard alloy H—Alloy steel D—Nitriding steel F—Intensified polytetrafluoroethylene(PTFE)

●压力等级代号：公称压力为MPa 的10倍、磅级为实际数

Pressure grade code:The 10 times of the nominal pressure MPa,pound grade io practical number

●阀门材料代号： C—WCB    l—WC6、ZG1Cr5Mo        V—WC9、ZG20CrMoV  P—CF8、ZG1Cr18Ni9Ti

R—CF8M、ZG1Cr18Ni12Mo2Ti   S—CF3   L—CF3M    F—LCB    N—LC3

Body   material   code:C—WCB   lI-WC6、ZG1Cr5Mo   V—WC9、ZG20CrMoV   P—CF8、ZG1Cr18Ni9Ti

R—CF8M、ZG1Cr18Ni12Mo2Ti     S—CF3   L—CF3M    F—LCB   N—LC3

​Z543WF-16C

注释：公称压力为1.6MPa、 伞齿轮传动、法兰连接、无导流孔、明杆平行式单闸板闸阀，阀体材质为WCB,  密封面材质为增强聚四氟乙烯。 Example1:Z543WF-16C

Denoting  1.6MPa nominal pressure,bevel gear driving,flange-connecting,nondiversion hole,Rising-stem parallel single-disc,WCB valve body material and the Intensified polytetrafluoroethylene(PTFE)as sealing material.

例2: KZ9g44Y-150Lb

注释：压力等级为Class150 、 防爆电动、法兰连接、有导流孔、抗硫明杆平行式双闸板闸阀，阀体材质为WCB,  密封面材质为硬质合金。

Example2:KZ9g44Y-150Lb

Denoting  Class150  pressure  grade,explosion  electric  driving,flange-connecting,diversion  hole  type,antisulphur  rising-stem

parallel double-disc gate valve,WCB valve body material and the hard alloy sealing material.