R900357833 LFA16DBW2-6X/420，TLFA032D-6X，插装控制阀
SM4-15(10)38-140/40-10,SM4-15(2.5)9-140/40-10,SM4-15(1)3.8-200/15-10,SM4-15(10)38-200/15-10,
P000-631-F13,P000-631-F14,P000-631-F23,P000-631-F24,P100-631-F13,P100-631-F14,P100-631-F23,P100-631-F24,P200-631-F13,P200-631-F14,P200-631-F23,P200-631-F24,
KP75A
ESCD-80*25,ESCD-80*50,ESCD-80*75,ESCD-80*80,ESCD-80*125,ESCD-80*150,ESCD-80*160,ESCD-80*175,ESCD-80*200,ESCD-80*250,ESCD-80*300,
UA41SM-16C-DN32,UA41H-16C-DN32,UA41H-16P-DN32,UA41H-16R-DN32,UA41SM-25C-DN32,UA41H-25C-DN32,UA41H-25P-DN32,UA41H-25R-DN32,
主阀下腔压力上升,上腔压力下降,从而利用压差把主阀向上推开;断电时,先导阀利用弹簧力或介质压力推动关闭件,向下移动,使阀门关闭.特点:在零压差或真空高压时般选用常闭型，通电打开，断电关闭;但在开启时间很长关闭时很短时要选用常开型了。
SY5220-*GZD-01,GZ,GZE,GD,G),
SR551-PN25DL 二位五通滑柱式电控换向阀 济南华能-杰菲特
SY513-1DZ-01 无锡油研
WB2-20/10,无锡油研，WB2-30/3,WB2-30/6,
RPD10-03,RPD10-04,RPD12-01,RPD12-02,RPD12-03,RPD12-04,RPD14-03,RPD14-04,
NL150A12-18.5 18.5KW 380r/min 污水泥浆泵