ZMKII/ZKKII Multi-Stage Step-Down Control Valve ZMKII/ZKKII 多級降壓控制閥采用多級降壓單座結構，允許壓差大，抗氣蝕，抗沖刷，低噪音。 ZMKII/ZKKII Multi-Stage Step-Down Control Valve with multi-stage step-down single-seat structure.It has high pressure drop,anti-cavitation,anti-scour,low noise. 閥體結構（Body Construction） 1 | 閥體 Body | 7 | 填料 Packing | 2 | 閥座 Seat | 8 | 填料壓蓋 Packing gland | 3 | 閥芯/閥桿 Plug/Stem | 9 | 螺母 Nut | 4 | 套筒 Cage | 10 | 雙頭螺柱 Double-screw bolt | 5 | 墊圈 Gasket | 11 | 雙頭螺柱 Double-screw bolt | 6 | 閥蓋 Valve bonnet | 12 | 螺母 Nut |
窗體底端 標準規格(Standard specifications) 形式Type | 多級降壓控制閥Multi-Stage Step-Down Control Valve | 公稱通徑Body Size | DN15-DN200(1/2~8) | 公稱壓力Body Ratings | PN100,160,220,250,320,420;ANSI Class 600,900,1500,2500 | 閥體及閥蓋材質 Body&Bonnet Material | A105,F304,F316,鍛12Cr1MoV,WCB,CF8,CF8M… | 填料Packing | V型聚四氟乙稀 V-PTEE/柔性石墨 Flexible graphite | 墊圈Gasket | GRAP+304,GRAP+316,PTEE | 連接方式Connections | 法蘭型（RF、MFM）Flange type(RF,MFM)/焊接型（SW、BW）Welding type(SW,BW) | 涂層Painting Color | 棕色漆Brown painting/不銹鋼閥體可不涂漆No painting on stainless steel valve body | 閥蓋類型Bonnet Type | 標準型、散熱型 Standard type,Fin-Extension type |
注：以上只是標準組合，根據工況條件，本表以外的規格也是可能的。 Note:the above is just a standard combination,according to the working conditions,other specifications are also possible.
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