H44W-16P|H44W-25P|H44W-40P|H44W-100P止回阀产品说明：一、主要用途旋启式止回阀选用于公称压力PN1.6～6.4MPa,工作温度-29～550℃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。二、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。三、应用规范设计制造按GB/T12235-89结构长度按GB/T12221-89法兰尺寸按JB/T79-94GB/T9113-2000检验标准按GB/T9092、GB/T13927-92四、压力试验公称压力1.62.54.06.410.016.0强度试验2.43.86.09.615.024.0水密封试验1.82.84.47.011.018.0气密封试验0.5-0.7五、主要零件材料及性能阀体、阀盖、阀板阀杆密封面垫片密封面工作温度℃适用介质WCBWCB1Cr13增强柔性石墨1Cr13/柔性石墨PTFE齿轮垫片13CrSTL本材料尼龙≤425水蒸汽油品WC6WC6≤540WC9WC9≤570ZGCr5MoZGCr5Mo≤550ZG1Cr18Ni9TiZG1Cr18Ni9TiZG1Cr18Ni9Ti≤200硝酸类ZG1Cr18Ni12Mo9TiZG1Cr18Ni12Mo9TiZG1Cr18Ni12Mo9Ti≤200醋酸类六、国标旋启式止回阀规格主要尺寸和重量DNLDD1D2bn-ΦdH重量50230160125100164-181601665290180145120184-181752080310195160135208-1818529100350215180155208-1822032125400245210185228-18248651504890280240210248-23276982004953352952652612-233501602506224053553203012-254102553006984604103753012-254302954009145805254853616-30560388H44HH44WH44Y2525P25R凸面法兰RF50230160125100204-181602165290180145120228-181752880310195160135228-1818537100350230190160248-2322056125400270220188288-2524892150480300250218308-252701292005333603102783412-253502102506224253703323612-304102953007114854303904016-304303684008646105505054816-34560460DNLDD1D2bn-ΦdH重量5023016012588204-181602565290180145110228-181753080310195160121228-1818538100350230190150248-2322057125400270220176288-2524890150480300250204308-252701502005333753202603812-303502202506224453853134212-344103603007115104503644616-3443044703508385705104225216-345185504008646555854745816-41560580H44HH44WH44Y6464P64R64I凹凸法兰MFM5030017513588264-231773065340200160110288-231974080380210170121308-2321250100430250200150328-2524880125500295240176368-30296120150550340280204388-343301802006504053452604412-343852502507754704003134812-414453803009005304603645416-4147451035010255955254226016-4151469040011506705854746616-486161010H44HH44WH44Y100100P100R100I凹凸法兰MFM5030019514588284-252103165340220170110328-252274180380230180121348-2523552100430265210150388-3027483125500310250176428-343071251505503502902044612-343471952006504303602605412-414022302507755004301316012-414324503009005855003647016-48484740上海维旺迪阀门有限公司----【联系方式】联系人：黄经理销售热线：021-60513032图文传真：021-51686501上海维旺迪阀门：邮箱：viwandi@手机：13636430039黄经理上海维旺迪阀门有限公司：http:///products/07/上海维旺迪阀门：http:///product/zihui/)