CLA-VAL(可拉伐)航空地面加油控制阀技术要点如下:50SeriesBackPressureControlValve/50系列(50-48)背压控制阀参数:•Opensrapidlyformaximumreliefprotection•Maintainsc***tantupstreampressuretocloselimits,andmaintainspreselectedpressureduringperiodsoflowdemand•Controlssurgecreatedbythestartingofapump•Modulatestomaintainc***tantbackpressure•Nopackingglandsassureleak-proofservice•Nolubricationrequired•Tightsealingsingleseat详情请咨询中国区***指定一级***商--深圳市科万德机电设备有限公司)