北京华德液压全系列 具体型号及报价请联系客服
北京华德换向阀部分型号如下:
4WEH16J50B/6EW220-50NETZ4 4WEH25E50B/OF6AG24NZ5
4WEH16J50B/6EW220-50NETZ5 4WEH25E50B/OF6AG24NZ5L
4WEH16J50B/6EW220-50NETZ5L 4WEH25E50B/OF6AW220-50NETZ4
4WEH16J50B/6EW220-50NEZ4 4WEH25E50B/OF6AW220-50NETZ5
4WEH16J50B/6EW220-50NEZ5 4WEH25E50B/OF6AW220-50NETZ5L
4WEH16J50B/6EW220-50NEZ5L 4WEH25E50B/OF6AW220-50NEZ4
4WEH16J50B/6EW220-50NTZ4 4WEH25E50B/OF6AW220-50NEZ5
4WEH16J50B/6EW220-50NTZ5 4WEH25E50B/OF6AW220-50NEZ5L
4WEH16J50B/6EW220-50NTZ5L 4WEH25E50B/OF6AW220-50NTZ4
4WEH16J50B/6EW220-50NZ4 4WEH25E50B/OF6AW220-50NTZ5
4WEH16J50B/6EW220-50NZ5 4WEH25E50B/OF6AW220-50NTZ5L
4WEH16J50B/6EW220-50NZ5L 4WEH25E50B/OF6AW220-50NZ4
4WEH16L50B/6CW220-N9ET25L 4WEH25E50B/OF6AW220-50NZ5
4WEH16L50B/6EG24NE25L 4WEH25E50B/OF6AW220-50NZ5L
4WEH16M50B/6CW220-N9ET25L 4WEH25F50B/6CW220-N9ET25L
4WEH16M50B/6EG24NE25L 4WEH25F50B/6EG24NE25L
4WEH16P50B/6CW220-N9ET25L 4WEH25G50B/6CW220-N9ET25L
4WEH16P50B/6EG24NE25L 4WEH25G50B/6EG24NE25L
4WEH16T50B/6CW220-N9ET25L 4WEH25H50B/6CW220-N9ET25L
4WEH16T50B/6EG24NE25L 4WEH25H50B/6EG24NE25L
4WEH16U50B/6CW220-N9ET25L 4WEH25J50B/6CW220-N9ET25L
4WEH16U50B/6EG24NE25L 4WEH25J50B/6EG24NE25L
4WEH16Y50B/6CW220-N9ET25L 4WEH25L50B/6CW220-N9ET25L
4WEH16Y50B/6EG24NE25L 4WEH25L50B/6EG24NE25L
3、高/低加热器给水加热器疏水、冷凝水加热器疏水:
控制要求:控制加热器中冷凝水的位置,及时将冷凝水排放,即高水位排放,正常水位疏水。
工况情况:介质为饱和水,加热器之间的控制阀压差一般为6-30公斤,Zui后一级疏水阀直接连接冷凝器或除氧器。
阀门要求:抗闪蒸冲刷,V或VI级密封等级,阀门通常为故障开。
4、除氧器水位控制阀(DALC):
控制要求:提供流量保持除氧器正常水位,通过加入蒸汽提高水温消除溶解在水中的气体。
工况情况:启动阶段流量较小,压差较大,正常情况流量大,压差小,工况类似给水阀。
阀门要求:较低流量时有效抗气蚀。