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ZMKII/ZKKII Multi-Stage Step-Down Control Valve
ZMKII/ZKKII 多级降压控制阀采用多级降压单座结构，允许压差大，抗气蚀，抗冲刷，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.
阀体结构（Body Construction）
1 | 阀体 Body | 7 | 填料 Packing |
2 | 阀座 Seat | 8 | 填料压盖 Packing gland |
3 | 阀芯/阀杆 Plug/Stem | 9 | 螺母 Nut |
4 | 套筒 Cage | 10 | 双头螺柱 Double-screw bolt |
5 | 垫圈 Gasket | 11 | 双头螺柱 Double-screw bolt |
6 | 阀盖 Valve bonnet | 12 | 螺母 Nut |
窗体底端
标准规格(Standard specifications)
形式Type | 多级降压控制阀Multi-Stage Step-Down Control Valve |
公称通径Body Size | DN15-DN200(1/2~8) |
公称压力Body Ratings | PN100,160,220,250,320,420;ANSI Class 600,900,1500,2500 |
阀体及阀盖材质 Body&Bonnet Material | A105,F304,F316,锻12Cr1MoV,WCB,CF8,CF8M… |
填料Packing | V型聚四氟乙稀 V-PTEE/柔性石墨 Flexible graphite |
垫圈Gasket | GRAP+304,GRAP+316,PTEE |
连接方式Connections | 法兰型（RF、MFM）Flange type(RF,MFM)/焊接型（SW、BW）Welding type(SW,BW) |
涂层Painting Color | 棕色漆Brown painting/不锈钢阀体可不涂漆No painting on stainless steel valve body |
阀盖类型Bonnet Type | 标准型、散热型 Standard type,Fin-Extension type |
注：以上只是标准组合，根据工况条件，本表以外的规格也是可能的。
Note:the above is just a standard combination,according to the working conditions,other specifications are also possible.
