DY30AX缓开缓闭止回阀由阀体、阀盖、阀瓣、阀杆、弹簧、导阀等零件组成。上阀盖与下阀盖之间为隔膜腔，隔膜腔内设隔膜，隔膜与中心轴连接，中心轴另一端连接阀门，阀门与阀座接触。水容器与上阀盖进水、出水控制孔连通，水容器与上阀盖出水为节流连通，水容器与上阀盖进水为单向连通。DY30AX缓开缓闭止回阀能快速开启，反应迅速；快速关闭，防止水锤产生。无水质要求，可用于污水、清水及原水系统。一、DY30AX缓开缓闭止回阀性能：缓开缓闭止回阀（多功能止回阀），是一种新型的阀门，可以取代传统设计的止回阀、电动阀和水锤吸纳器。多功能止回阀具有缓开、缓闭消水锤、止回功能，其可靠性及效果比传统形式更好。二、DY30AX缓开缓闭止回阀材质：零件名称材质阀体、阀盖铸铁、铸钢、不锈钢阀杆铬不锈钢阀瓣碳钢、不锈钢+***橡胶O形圈***橡胶弹簧0不锈钢三、DY30AX缓开缓闭止回阀技术参数：公称压(Mpa)壳体试验压力(MPa)密封试验压力(MPa)适用介质介质温度(℃)1.01.51.1水0-801.62.41.762.53.752.75四、DY30AX缓开缓闭止回阀规格尺寸：NLAA1HH1FDmmD1mmD2mmn-ΦdmmmmmmmmmmmmPN1.0PN1.6PN2.5PN1.0PN1.6PN2.5PN1.0PN1.6PN2.5PN1.0PN1.6PN2.5201802822001721061161051051057575755858564-13.54-13.54-14251802822001721061161151151158585856868654-13.54-13.54-14321802822001721061161401401401001001007878764-17.54-17.54-18402403202102652101701501501501101101108888844-17.54-17.54-1850240320210265210170165165165125125125102102994-17.54-17.54-18652503302153102151801851851851451451451221221184-17.54-17.58-18802853502203502452102002002001601601601331331328-17.58-17.58-181003604102304603052752202202351801801901581581568-17.58-17.58-221254004202455203653102502502702102102201841841848-17.58-17.58-261504554302605704153552852853002402402502122122118-228-228-262005854402806955104603403403602952953102682682748-2212-2212-2625065045030078056050039540542535035537032032033012-2212-2612-3030080046032090265858044546048540041043037037038912-2212-2616-30350860470340102569664050552055546047049043043044816-2216-2616-33400960480360108073571556558062051552555048248250316-2616-3016-364501075530395103061078061564067056558560053255054820-2620-3020-365001075580420113566583067071573062065066058558560920-2620-3320-366001230600445127072592078084084572577077068568572020-3020-3620-397001650730495146086598089591096084084087580080082024-3024-3624-4280017508305301640925105010151025108595095099090590592824-3324-3924-48)