上海鸿蝶阀门有限公司

上海鸿蝶阀门有限公司专业生产销售【高温止回阀】，欢迎来电咨询【高温止回阀】的价格和详细信息，好【高温止回阀】，上海鸿蝶阀门有限公司造！

止回阀：止回阀又称单向阀或逆止阀，其作用是防止管路中的介质倒流。水泵吸水关的底阀也属于止回阀类。

启闭件靠介质流动和力量自行开启或关闭，以防止介质倒流的阀门叫止回阀。止回阀属于自动阀类，主要用于介质单向流动的管道上，只允许介质向一个方向流动，以防止发生事故。

止回阀按结构划分，可分为升降式止回阀、旋启式止回阀和蝶式止回阀三种。升降式止回阀可分为立式和卧式两种。旋启式止回阀分为单瓣式、双瓣式和多瓣式三种。蝶式止回阀为直通式、以上几种止回阀在连接形式上可分为螺纹连接、法兰连接和焊接三种。

零件名称材料牌名阀体WCBZGCr5MoZG1Cr18Ni9TiZG1Cr18Ni12Mo2Ti阀盖WCBZGCr5MoZG1Cr18Ni9TiZG1Cr18Ni12Mo2Ti阀瓣WCBZGCr5MoZG1Cr18Ni9TiZG1Cr18Ni12Mo2Ti销轴2Crl32Crl31Cr18Ni9Ti1Cr18Ni12MO2Ti垫片石墨缠绕垫片石墨缠绕垫片聚四氟乙稀缠绕垫片聚四氟乙稀缠绕垫片

公称压力PN（MPa）壳体材料试验压力(Mpa)WCBZGCr5Mo(C5)ZG1Cr18Ni9TiZG1Cr18Ni12Mo2Ti强度试验液体密封气体密封1.6H44H-16CH44Y-16IH44W-16PH44W-16R2.41.82.5H44H-25H44Y-25IH44W-25PH44W-25R3.82.84.0H44H-40H44Y-40IH44W-40PH44W-40R6.04.46.4H44H-64H44Y-64IH44W-64PH44W-64R9.67.110.0H44H-100H44Y-100IH44W-100PH44W-100R15.011.0适用温度-29-425℃≤550℃-40-200℃-40-200℃超出温度范围，请订货时注明适用介质水蒸气、油品等水蒸气、油品等硝酸等醋酸等

型号公称通径尺寸（mm）LDD1D2D6bZ-фdD0HH44H-16C4020014511085-164-ф1816015050230160125100-164-ф1818516065290180145120-184-ф1821517580310195160135-208-ф18230180100350215180155-208-ф18260210125400245210185-228-ф18320235150480280240210-248-ф23350250200550335295265-2612-ф23420330250650405355320-3012-ф25480380300750460410375-3012-ф255204103508505204870435-3416-ф25600490H44H-254020014511085-184-ф1816015050230160125100-204-ф1818516065290180145120-228-ф1821517580310195160135-228-ф18235185100350230190160-248-ф23270220125400270220188-288-ф25340248150480300250218-308-ф25375276200550360310278-3412-ф25435350250650425370332-3612-ф30515410300750485430390-406-ф30550430350850550490448-4416-ф34620466H44H-40402001451108576184-ф18——5023016012510088204-ф18185169型号公称通径尺寸（mm）LDD1D2D6bZ-фdD0HH44H-4065290180145120110228-ф1821517580310195160135121228-ф18235185100350230190160150248-ф23270220125400270220188126288-ф25340248150480300250218204308-ф253752702005503751202822603812-ф304503422506504453853453134212-ф34525401300750510450408364464-ф23550423H44H-645030017513510588268-ф2320017765340200160130110288-ф2322519780380210170140121308-ф25250212100430250200168150328-ф30315248125500295240202176368-ф343652961505503402802402043812-ф344103302006504053453002604412-ф414803852507754704003523134816-ф41565445300900530460412364504-ф25600474H44H-1005030019514511288288-ф2522021065340220170138110328-ф2524022780380230180148121348-ф30260235100430265210172150388-ф343302741255003102502101504212-ф343853071505503502902502044612-ф344253472006504303603122605412-ф415004022507755004303823136012-ф41565432