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1、H44旋启式止回阀主要用途H44旋启式止回阀选用于公称压力PN1.66.4MPa,工作温度-29550的石油、化工、火力电站等各种工况的管路上。适用介质为：水、油品、蒸汽等。结构与特点1、选材考究，符合国内、外相关标准，材料的全面质量高。2、密封副配对先进合理，阀瓣、阀座密封面采用铁基合金或司太立（Stellite）钴基硬质合金堆焊面成，耐磨、耐高温、耐腐蚀、抗擦伤性能好，使用寿命长。3、产品按国家标准GB/T12235设计制造。4、可采用各种配管法兰标准及法兰密封型式，满足各种工程需要及用户要求。5、阀体材料品种齐全，垫片可根据实际工况或用户要求合理选配，能适用于各种压力、温度及介质工况。可
2、按用户要求设计制造不同结构形式和连接形式的止回阀，为各种设备配套使用。应用规范 设计与制造GB/T12235连接端尺寸结构长度GB/T12221法兰尺寸JB/T79检验与试验JB/T9092材料碳钢GB/T12229不锈钢GB/T12230合金钢Q/ZB66标志GB/T12220供货JB/T7928主要零件材料及主要用途 阀体阀盖阀瓣阀座适用介质适用温度()WCBWCB+D507MoWCB+D577水、油品、蒸汽425ZG1Cr18Ni9Ti0Cr18Ni9+Stellite120Cr18Ni9+Stellite6销酸类200ZG1Cr18Ni2Mo2TiCF8M+Stellite12ZG1C
3、r18Ni2Mo2Ti磷酸、醋酸类、混酸200ZG00Cr17Ni14Mo2CF3M+Stellite12CF3M+Stellite6尿素、甲铵液、磷酸200ZG1Cr5MoZG1Cr5Mo+Stellite12ZG1Cr5Mo+Stellite6水、油品、蒸汽550主要外形尺寸和连接尺寸（mm） 公称通径DNLDD1D2bZ-dHWT(Kg)H44H-16C H44W-16C H44W-16P H44W-16R H44W-16I50230160125100164-181352165290180145120184-181422880310195160135208-181653810035021
4、5180155208-1818058125400245210185228-1821092150480280240210248-232331302005003352952652612-233042102505504053553203012-253482943006504604103753012-253903673507505204704353416-254304104008505805254853616-304684614509506405855454020-3052357050010257056506084420-34525850H44H-25 H44W-25 H44W-25P H44W-25
5、R H44W-25I50230160125100204-181602265290180145120228-181752980310195160135228-1818538100350230190160248-2322061125400270220188288-2524896150480300250218308-252761322005503603102783412-253502132506504253703323612-304102973007504854303904016-304303723508505504904484416-345184154009506105505054816-3456
6、048045010256606005555020-3458261050011507306606105220-41618920公称通径DNLDD1D2D6bff2Z-dHWT(Kg)H44H-40 H44W-40 H44W-40P H44W-40R H44W-40I 凹凸法兰502301601251008820344-18169226529018014512011022348-18173208031019516013512122348-18185381003502301901601502434.58-23220611254002702201881762834.58-252489615048030
7、02502182043034.58-252701322005503753202822603834.512-303422132506504453853453134234.512-344012973007505104504083644644.516-34423372350850570510465422524516-34455415400950655585535474584516-41510480H44H-64 H44W-64 H44W-64P H44W-64R H44W-64I 凹凸法兰503001751351058826344-23177276534020016013011028348-2319
8、7378038021017014012130348-23212571004302502001681503234.58-25248891255002952402021763634.58-302961351505503402802402043834.58-343301842006504053453002604434.512-343852662507754704003523134834.512-414453963009005304604123645444.516-414746433501025595525475422604516-415148154001150670585525474664516-486161234
