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北京华德减压阀DZ10-1-30B/210YM 调节阀
面议北京华德DVP82-10B单向节流阀DV20-1-10B 调节阀
面议北京华德减压阀DRVP162-10B 调节阀
面议北京华德先导式减压阀DR5DP2-10B/75Y 调节阀
面议北京华德先导式减压阀DR10-3-30B/100M 调节阀
面议北京华德溢流阀DBW20A-3-30B/100G24NZ4 调节阀
面议华德溢流阀DBW10B-1-50B/315X6CG24N9Z4 调节阀
面议华德溢流阀 DBW20A-1-30B/100G24NZ5 调节阀
面议北京华德DBW10A-1-50B/3156BG24N9Z4溢流阀 调节阀
面议华德直动式溢流阀DBDH10P10B/400 调节阀
面议北京华德溢流阀DB3U20H-1-30B/100G24NZ4 调节阀
面议北京华德溢流阀DB30-2-50B/200 调节阀
面议北京华德换向阀 4WE10C31B/CG24NZ5L
北京华德换向阀 4WE10C31B/CG24NZ5L
气动调节阀是石油化工企业广泛使用的仪表之一。它准确正常地工作对保证工艺装置的正常运行和安全生产有着重要的意义。因此加强气动调节阀的维修是必要的。
一、检修时的重点检查部位
检查间体内壁:在高压差和有腐蚀性介质的场合,阀体内壁、隔膜阀的隔膜经常受到介质的冲击和腐蚀,必须重点检查耐压耐腐情况;
检查阀座:因工作时介质渗入,固定阀座用的螺纹内表面易受腐蚀而使阀座松弛;
检查阀芯:阀芯是调节阀的可动部件之一,受介质的冲蚀较为严重,检修时要认真检查阀芯各部是否被腐蚀、磨损,特别是在高压差的情况下,阀芯的磨损因空化引起的汽蚀现象更为严重。损坏严重的阀芯应予更换;检查密封填料:检查盘根石棉绳是否干燥,如采用聚四氟乙烯填料,应注意检查是否老化和其配合面是否损坏;
检查执行机构中的橡胶薄膜是否老化,是否有龟裂现象。
二、气动用调节阀的日常维护
当调节阀采用石墨一石棉为填料时,大约三个月应在填料上添加一次润滑油,以保证调节阀灵活好用。如发现填料压帽压得很低,则应补充填料,如发现聚四氟乙燥填料硬化,则应及时更换;应在巡回检查中注意调节阀的运行情况,检查阀位指示器和调节器输出是否吻合;对有定位器的调节阀要经常检查气源,发现问题及时处理;应经常保持调节阀的卫生以及各部件完整好用。
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:
4WE10H31B/OFCW220-50N9Z5L 4WE10L31B/CG24N9Z4
4WE10H31B/OFCW220-50NZ4 4WE10L31B/CG24N9Z5
4WE10H31B/OFCW220-50NZ5 4WE10L31B/CG24N9Z5L
4WE10H31B/OFCW220-50NZ5L 4WE10L31B/CG24NZ4
4WE10J20B/OFAG24N 4WE10L31B/CG24NZ5
4WE10J20B/OFAW220-50N 4WE10L31B/CG24NZ5L
4WE10J31B/CG24N9Z4 4WE10L31B/CW220-50N9Z4
4WE10J31B/CG24N9Z5 4WE10L31B/CW220-50N9Z5
4WE10J31B/CG24N9Z5L 4WE10L31B/CW220-50N9Z5L
4WE10J31B/CG24NZ4 4WE10L31B/CW220-50NZ4
4WE10J31B/CG24NZ5 4WE10L31B/CW220-50NZ5
4WE10J31B/CG24NZ5L 4WE10L31B/CW220-50NZ5L
4WE10J31B/CW220-50N9Z4 4WE10M20B/AG24N
4WE10J31B/CW220-50N9Z5 4WE10M20B/AW220-50
4WE10J31B/CW220-50N9Z5L 4WE10M20B/OAG24N
4WE10J31B/CW220-50NZ4 4WE10M20B/OAW220-50N
4WE10J31B/CW220-50NZ5 4WE10M31B/CG24N9Z4
4WE10J31B/CW220-50NZ5L 4WE10M31B/CG24N9Z5
4WE10J31B/OFCG24N9Z4 4WE10M31B/CG24N9Z5L
4WE10J31B/OFCG24N9Z5 4WE10M31B/CG24NZ4
4WE10J31B/OFCG24N9Z5L 4WE10M31B/CG24NZ5
4WE10J31B/OFCG24NZ4 4WE10M31B/CG24NZ5L
4WE10J31B/OFCG24NZ5 4WE10M31B/CW220-50N9Z4
4WE10J31B/OFCG24NZ5L 4WE10M31B/CW220-50N9Z5
4WE10J31B/OFCW220-50N9Z4 4WE10M31B/CW220-50N9Z5L
4WE10J31B/OFCW220-50N9Z5 4WE10M31B/CW220-50NZ4
4WE10J31B/OFCW220-50N9Z5L 4WE10M31B/CW220-50NZ5
4WE10J31B/OFCW220-50NZ4 4WE10M31B/CW220-50NZ5L
4WE10J31B/OFCW220-50NZ5 4WE10P20B/AG24N
4WE10J31B/OFCW220-50NZ5L 4WE10P20B/AW220-50
自动阀门的常见故障和预防措施 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:
4WE10H31B/OFCW220-50N9Z5L 4WE10L31B/CG24N9Z4
4WE10H31B/OFCW220-50NZ4 4WE10L31B/CG24N9Z5
4WE10H31B/OFCW220-50NZ5 4WE10L31B/CG24N9Z5L
4WE10H31B/OFCW220-50NZ5L 4WE10L31B/CG24NZ4
4WE10J20B/OFAG24N 4WE10L31B/CG24NZ5
4WE10J20B/OFAW220-50N 4WE10L31B/CG24NZ5L
4WE10J31B/CG24N9Z4 4WE10L31B/CW220-50N9Z4
4WE10J31B/CG24N9Z5 4WE10L31B/CW220-50N9Z5
4WE10J31B/CG24N9Z5L 4WE10L31B/CW220-50N9Z5L
4WE10J31B/CG24NZ4 4WE10L31B/CW220-50NZ4
4WE10J31B/CG24NZ5 4WE10L31B/CW220-50NZ5
4WE10J31B/CG24NZ5L 4WE10L31B/CW220-50NZ5L
4WE10J31B/CW220-50N9Z4 4WE10M20B/AG24N
4WE10J31B/CW220-50N9Z5 4WE10M20B/AW220-50
4WE10J31B/CW220-50N9Z5L 4WE10M20B/OAG24N
4WE10J31B/CW220-50NZ4 4WE10M20B/OAW220-50N
4WE10J31B/CW220-50NZ5 4WE10M31B/CG24N9Z4
4WE10J31B/CW220-50NZ5L 4WE10M31B/CG24N9Z5
4WE10J31B/OFCG24N9Z4 4WE10M31B/CG24N9Z5L
4WE10J31B/OFCG24N9Z5 4WE10M31B/CG24NZ4
4WE10J31B/OFCG24N9Z5L 4WE10M31B/CG24NZ5
4WE10J31B/OFCG24NZ4 4WE10M31B/CG24NZ5L
4WE10J31B/OFCG24NZ5 4WE10M31B/CW220-50N9Z4
4WE10J31B/OFCG24NZ5L 4WE10M31B/CW220-50N9Z5
4WE10J31B/OFCW220-50N9Z4 4WE10M31B/CW220-50N9Z5L
4WE10J31B/OFCW220-50N9Z5 4WE10M31B/CW220-50NZ4
4WE10J31B/OFCW220-50N9Z5L 4WE10M31B/CW220-50NZ5
4WE10J31B/OFCW220-50NZ4 4WE10M31B/CW220-50NZ5L
4WE10J31B/OFCW220-50NZ5 4WE10P20B/AG24N
4WE10J31B/OFCW220-50NZ5L 4WE10P20B/AW220-50