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●特殊要求代號： K—抗硫型  L一調節型  ZB— 自動補償

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

● 閥門類型代號： Z—閘閥

Valve type code:Z—Gate valve

●驅動方式代號：4—正齒輪傳動  5—傘齒輪

傳動  6—氣動  6s—氣動帶手動  7—液動 9—電動(手輪傳動略) 9g—防爆電動

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

●連接形式代號：4一法蘭連接  6一對焊連接

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

●結構形式代號：3—明桿平行式單閘板 4—明桿平行式雙閘板

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

●結構特點代號： W 一無導流孔(有導流孔省略) P—輕 型

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

●密封面材質代號： Y一硬質合金  H—合金鋼  D—滲氮鋼  F—增強聚四氟乙烯

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

●壓力等級代號：公稱壓力為MPa 的10倍、磅級為實際數

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

●閥門材料代號： 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

注釋：公稱壓力為1.6MPa、 傘齒輪傳動、法蘭連接、無導流孔、明桿平行式單閘板閘閥，閥體材質為WCB,  密封面材質為增強聚四氟乙烯。 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

注釋：壓力等級為Class150 、 防爆電動、法蘭連接、有導流孔、抗硫明桿平行式雙閘板閘閥，閥體材質為WCB,  密封面材質為硬質合金。

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.