对夹双瓣旋启式止回阀H76W、H76H、H76X对夹双瓣旋启式止回阀.doc

止回阀>>对夹止回阀>>对夹双瓣旋启式止回阀产品名称：对夹双瓣旋启式止回阀产品型号：H76W、H76H、H76X产品口径：DN15DN1200产品压力：0.642.0MPa产品材质：铸钢、不锈钢、合金钢等产品概括：生产标准：国家标准GB、机械标准JB、化工标准HG、美标API、ANSI、德标DIN、日本JIS、JPI、英标BS生产。阀体材质：铜、铸铁、铸钢、碳钢、WCB、WC6、WC9、20#、25#、锻钢、A105、F11、F22、不锈钢、304、304L、316、316L、铬钼钢、低温钢、钛合金钢等。工作压力1.0Mpa-50.0Mpa。工作温度：-196-650。连接方式：内螺纹、外螺纹、法兰、焊接、对焊、承插焊、卡套、卡箍。驱动方式：手动、气动、液动、电动。   产品详细信息产品介绍：针对国内传统使用的H44型法兰连接旋启式止回阀具有体积笨大，流体阻力大，阀门关闭时水锤压力高，安装、维修难，使用寿命短等缺点。阀门供应网针对传统法兰结构止回阀存在的问题，研制生产了对夹式止回阀系列，H76对夹双瓣旋启式止回阀具有结构长度短，体积小、重量轻，阀瓣关闭快速，水锤压力小，安装方便，流体阻力小，动作灵敏、密封性能好，阀瓣行程短、关阀冲击力小，整体结构、简单紧凑，使用寿命长、可靠性高等特点。双瓣旋启对夹式止回阀由阀体、阀瓣、阀杆及弹簧等零件组成，采用对夹式连接，结构紧凑。由于阀瓣的关闭行程短，并有弹簧加载，关闭速度快，可显著减少水锤现象。产品具有体积小、重量轻、动作灵敏、密封可靠、安装方便等特点，可水平安装或垂直安装，可适用于水、蒸气、油品、硝酸、醋酸、强氧化性介质等多种介质。应用范围：双瓣旋启对夹式止回阀适用于公称压力PN10PN420、Class150Class2500；公称通径DN15DN1200、NPS1/248；工作温度-196540的各种管路上，用于防止介质倒流。通过选用不同的材质，对夹式止回阀可适用于石化、冶金、电力、轻工、食品等行业中水、蒸汽、油品、硝酸、醋酸、强氧化性介质及尿素等多种介质。  结构特点：1. 结构长度短，其结构长度只有传统法兰止回阀的1/41/8； 2. 体积小、重量轻，其重量只有传统法兰止回阀的1/41/20；3. 阀瓣关闭快速，水锤压力小；4. 水平管道或垂直管道均可使用，安装方便；5. 流道通畅、流体阻力小；6. 动作灵敏、密封性能好；7. 阀瓣行程短、关阀冲击力小；8. 整体结构、简单紧凑、造型美观；9. 使用寿命长、可靠性高。 标准规范：设计制造标准：JB/T 8937 结构长度标准：GB/T 12221-2005连接法兰标准：GB/T 9113压力温度等级：GB/T 12224-2005试验检验标准：GB/T 13927-2008对夹双瓣旋启式止回阀与法兰单瓣旋启式止回阀的对比：结构形式H76型对夹双瓣旋启式止回阀H44型法兰单瓣旋启式止回阀水锤压力水锤压力小，阀瓣行程短、并有弹簧辅助关闭、关阀速度快水锤压力很大，阀瓣行程长，需要较长的关闭时间H76型的水锤压力只有H44型的1/21/5尺寸和重量结构长度很短、体积小、重量轻，便于阀门的安装、搬运、存放及管道的布置，并能大量节约材料、降低成本结构长度很长，体积笨大，重量很重H76型的结构长度只有H44型的1/41/6，H76型的重量只有H44型的1/41/10流体阻力流体阻力小，流体阻力系数为2.60.7，随着阀门口径的增大，流体阻力系数减小流体阻力小，流体阻力系数为1.33，但在低压工况下，阀瓣不能完全开启，流体阻力大。流体阻力随着阀门口径的增大而增大安装可水平安装或垂直安装，重量轻，不必为阀门设置支座可水平安装或垂直安装，大口径阀门重量重，需设置支座开启压力开启压力很小，阀瓣在很小的压差下就能完全打开开启压力较大，阀瓣在较大的压差下才能完全打开可靠性阀门为整体结构，简单紧凑、阀门关闭时冲击力小，水锤压力小，阀门寿命长，可靠性高阀门关闭时的巨大冲击力及水锤压力容易损坏阀门流体力学性能：公称通径阀门全开启时的流体阻力系数常温下阀门全开启时的水流量系数流体的流向DNNPSKv(m3/h)Cv(U.S)Cv(U.K)开启压力近似值KPa5022.6637462216521/22.4109128107218032.31722011692110042.02893382832112551.84765574662115061.57508787352120081.314321675140321250101.223302726228321300121.036764301360221350140.952746171516921400160.873068548716031450180.8924610818906131500200.811415133561118731600240.717573205601722231700280.723919279852344141750300.727458321262690941800320.731241365523061641900360.7395394626138748411000400.7488145711247838411050420.7538176296652741411200480.770292822426888641 主要连接尺寸公称通径PN1.0PN1.6PN2.5PN4.0PN6.4PN10.0LDLDLDLDLDLDDN50601096010960109601096011560122DN65671296712967129671296714067147DN80731447314473144731447615073157DN100731647316473170731707917779183DN12586194861948619786197105213105220DN15098220982209822798227136250136260DN200127275127275127287127293165313165324DN250146330146332146343146355213364213394DN300181380181387181403184450229424229458DN350184440184447184460222478-DN400191492191498191518232549-DN450203542203558203568-DN500219597219620219624-DN600222698222734222734- 公称通径150Lb300Lb600LbLDLDLD260103601106011021/26712267129671293731357314873148473173731807919258619686215105240698222982501362658127279127307165319101463391463612133991218140918142222945614184450222485-16191514232539-18203549-20219606-24222717-止回阀系列价格供用户或设计院工程项目做预算止回阀H41W-16P口径4Ni8Ni316普料DN15187.5225315DN20202.5262.5352.5142.5DN25225292.5412.5157.5DN32292.5375502.5217.5DN40367.5465637.5262.5DN50442.5585825322.5DN65622.5757.51125435DN1807809751432.5540DN1009601207.51762.5705DN1251597.519352857.51260DN1502100277540351642.5DN20039455377.56772.53105DN25074259600DN3001080014400止回阀H42W-16P止回阀H44W-16P口径4Ni8Ni316普料4Ni8Ni316普料DN15157.5307.5127.5255285367.5187.5DN20187.5248 337.5142.5255300367.5187.5DN25195278 367.5157.5270322.5420202.5DN32225323 457.5202.5337.5382.5525240DN40270405 540240390465652.5277.5DN50367.5473 637.5277.5457.5585825345DN65495623 892.5360630757.51095457.5DN180607.5758 1072.5457.5787.59751425555DN100757.5975 1312.55709601207.51845705DN1251312.51598 2152.59751507.521002857.51260DN1501597.52100 28201207.5235527753997.51650DN2002943698 4702.523553952.54702.567202940DN25058507425 960064508100DN30067509150 11775780010650型号H41HH44HH41HH41HH41HH41HH41HH41HH41H16C25C1BC25C16C25C40C64C100C普通（沙铸）中型（精铸）重型材质(15-200口径均为精铸）15120120120120127.5127.5127.519519520127.5127.5127.5127.5135135135240240250135135142.5142.5142.5142.5247.5247.532202.5202.5202.5202.5210217.5217.540540540255255255255285285285570570502852852852853153153156456756537537542042046546546576582580480480502.5502.560060060011251200100600645645682.5780825825142515001258559309009751125120012002025217515010801155117012451620169517252775292520018001950192020252475262527754725495025031503375352537204200697575003004800510052505550645011250120003507200780079508250870014250180004009450990001020045012000127505001950020250600型号H44H-16CH44H-25CH44H-40CH44H-16CH44H-25C普通型（沙铸）中型（精铸）15157.5157.5157.5157.5157.52016516516516516525172.5172.5172.5172.5172.532217.5217.5217.5217.5217.540247.5247.5247.5247.5247.55028528528528528565382.5382.539042042080480480495510510100600637.566063067512585590093090097515010801155117011701275200165017251875172518752502550270030003003600390046503505250600063004006750795045097501095050011250127506002175024000型号H44H-16CH44H-25CH44H-40CH44H-64CH44H-100C重型材质重型材质（15-200口径均为精铸）15157.5157.5157.53003002016516516534534525172.5172.5172.5367.5367.532217.5217.5217.5420420402852852855705705031531531564567565465465465750825806006006001125120010078082584013501500125112512001230202521751501575165017252700292520021002250255042004500250322534504125652569003004500510057009450103203506600727585501350015450400825091509900165001875045012000126001410021000225005001425015450168002700030000600247502700030750口径H42H-16CH42H-25CH42H-16CH42H-16CH42H-25CH42H-64CH42H-100C普通型（沙铸）重型材质（15-200口径均为精铸）15127.5127.5127.5127.5127.53003002013513513513513531531525150150150150150360360321951951951951954204204021021024024024043543550232.5232.5262.5262.5262.548052565322.5322.534534534560063080367.5367.5390390390750825100450450495525525900975125690750825900930135014251509751050112512001230157516502001350142519202070217530753150250210022502400262528505250555030033003450360039754200765081003504800510061506450675096009900400690072007650795087001125011850450870093001027514850165005001500015750202502325060021000225003675040500型号铸铁止回阀口径H44T/W/X-10DN40157.5DN50210DN65240DN80337.5DN100375DN125555DN150660DN200945DN2501470DN3002025DN3502925DN4003750DN4505550DN5006600DN6009750DN70014400DN80019200尺寸止回阀（H44H/H41H/WCB)150LB300LB600LB2”43557087021/2”58582512153”780112515754”1140153025505”1425195040506”1650285049508”28504500870010”43507350157501296150100501920014“8925147002490016”12450204003690018”15300262504425020”19950343505700024"282005085081000尺寸止回阀（H44H/H41H/304)150LB300LB600LB2”802.51170180021/2”1050193523253”1470217533004”2370345057005”2925435088506”36757200117008”6750120001950010”11250165003225012”20250307504350014”262504350063000尺寸保温止回阀BH44H150LB300LB600LB2”810945124521/2”1072.51312.51702.53”1380172521754”1890228033005”2362.52887.54987.56”2775397560758”435060001020010”547584751687512”7500114002055014”10500162752647516”14250222003870018”17325282754627520”22200366005925024“309005355083700尺寸止回阀（H44H/H41H/316)150LB300LB600LB2”12001575285021/2”1800250540503”2250285054004”3375495094505”42758250148506”630010350180008”11100168003300010”18000277505850012”21750424507350014”390006450099000鸭嘴阀价格表口径单价DN80273DN100336DN125409.5DN150502.5DN200667.5DN250840DN3001005DN4001455DN4501758DN5001954.5鸭嘴阀价格表口径单价DN6002517DN7003712.5DN8004245DN9004770DN10005857.5DN12007035DN140010425DN160010095DN180011655DN200014850型号/口径H12立式止回阀3041/2"DN15513/4"DN20631"DN2585.511/4"DN3212911/2"DN401982"DN50247.5鸭嘴阀价格表规格材质套接式法兰式双法兰式卡箍式内置式DN50氯丁橡胶399451.51095DN65氯丁橡胶441532.51290DN80氯丁橡胶588703.51695DN100氯丁橡胶771892.52190DN125氯丁橡胶115513443225DN150氯丁橡胶1543.517854350DN200氯丁橡胶2317.5262535006150DN250氯丁橡胶2992.53496.58250DN300氯丁橡胶3864441010440DN350氯丁橡胶5215.55887.513605DN400氯丁橡胶5796672015945DN450氯丁橡胶7234.5840023925DN500氯丁橡胶9271.51071029250鸭嘴阀价格表规格材质套接式法兰式双法兰式卡箍式内置式DN600氯丁橡胶115921332035100DN700氯丁橡胶183542121051000DN800氯丁橡胶221552570464350DN900氯丁橡胶259743024074490DN1000氯丁橡胶299253473488725DN1200氯丁橡胶4441551450121875DN1400氯丁橡胶7488076020205335DN1500氯丁橡胶1230000DN1600氯丁橡胶156000180000294840DN1800氯丁橡胶217500252300368550DN2000氯丁橡胶282420327750481065DN2200氯丁橡胶337500391500691770DN2400氯丁橡胶472500533100731250型号/口径H14旋启式止回阀3043011/2"DN1542363/4"DN2052.5481"DN2567.56311/4"DN3210894.511/2"DN40133.51202"DN50172.5142.521/2"DN65465397.53"DN80660585型号/口径H14旋启式止回阀3043011/2"DN1542363/4"DN2052.5481"DN2567.56311/4"DN3210894.511/2"DN40133.51202"DN50172.5142.521/2"DN65465397.53"DN80660585鸭嘴阀价格表规格材质套接式法兰式双法兰式卡箍式内置式DN40氯丁橡胶105135DN50氯丁橡胶199.5232.5840DN65氯丁橡胶220.5270990DN80氯丁橡胶294352.51305DN100氯丁橡胶385.55611687.5DN125氯丁橡胶577.57502475DN150氯丁橡胶772.511253375DN200氯丁橡胶1162.515604725DN250氯丁橡胶150018006412.5DN300氯丁橡胶195022508032.5DN350氯丁橡胶2625300010462.5DN400氯丁橡胶2925337512262.5DN450氯丁橡胶3675420018405DN500氯丁橡胶4635540022500鸭嘴阀价格表规格材质套接式法兰式双法兰式卡箍式内置式DN600天然橡胶5797.5675027000DN700天然橡胶91801080039375DN800天然橡胶11077.51290049500DN900天然橡胶129871515057300DN1000天然橡胶150001740068250DN1100天然橡胶0225000DN1200天然橡胶225002572593750DN1400天然橡胶3750039510157950DN1500天然橡胶67500720000DN1600天然橡胶7800090000226800DN1800天然橡胶108750126150283500DN2000天然橡胶141225165000370050DN2200天然橡胶168750202500532125DN2400天然橡胶236250270000562500型号/口径H12立式止回阀3043011/2"DN153025.53/4"DN2037.5331"DN25514211/4"DN327261.511/2"DN40102872"DN50138112.5型号H71HH71WH71WH71HH71WH71WH71HH71WH71WH71HH71WH71W16254064150LB300LBWCB304316WCB304316WCB304316WCB304316WCB304316WCB3043161597.5142.5157.597.5142.5157.5105150202.5120180247.597.5142.5157.5120165217.520112.5150195112.5150195120180240135225300105150195142.5202.5262.525120157.5225120157.5225135210262.5157.5247.5360120165225150217.530032127.5165262.5127.5165262.5150232.5315172.5300405135180262.516525534540142.5202.5307.5142.5202.5307.5172.5285375202.5367.5480142.5210307.5202.5322.5412.550165240375165240375217.5360450255450577.5165247.5375247.540549565180285472.5180285472.5277.5442.5615330577.5735180292.5472.531549567580277.5442.5705277.5442.5705360622.5840465802.51042.5270450705405712.5945型号H71W150LB300LB316WCB304316WCB30431615247.597.5142.5157.5120165217.520300105150195142.5202.5262.525360120165225150217.530032405135180262.516525534540480142.5210307.5202.5322.5412.550577.5165247.5375247.540549565735180292.5472.5315495675801042.5270450