·用途法兰连接的旋启式止回阀适用于公称压力PN1.6～16.0MPa，工作温度-29～550℃的石油、化工、制药、化肥、电力行业等各种工况的管路上。适用介质为：水、油品、蒸汽、酸性介质等。·结构优势与特点1、产品按国家标准GBl2236设计制造，结构合理，密封可靠，性能优良。2、阀瓣、阀座密封面采用铁基合金或司太立(stellite)钴基硬质合金堆焊而成，耐磨、耐高温、耐腐蚀、抗擦伤性能好、使用寿命长。3、可采用各种配管法兰标准及法兰密封面型式，满足各种工程需要及用户要求。4、阀体材料品种齐全，填料、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。5、阀瓣转绕阀座外的销轴旋转，减少关闭时发生猛烈冲击。6、销轴与阀瓣连接采用内装式结构，不存在外泄漏点，使用更可靠。·型号Type配管法兰Pipearrangementflange公称压力PN(MPa)Nominalpressure法兰密封面Flange’ssealingface产品型号JB/T74GBgll3GB20592～206351.6凸面ConvexfaceH64H-16CH64W-16RH64W-16PH64y-16l2.5H64H-25H64W-25RH64W-25PH64y-25l4.O凹凸面Concave-convexfaceH64H-40H64W-40RH64W-40PH64y-40l6.4H64H-64H64W-64RH64W-64PH64y-64l10.OH64H-1OOH64W-100RH64W-100PH64y-100l16.OH64H-160H64W-160RH64W-160PH64y-160l25.OH64H-250H64W-250RH64W-250PH64y-250l注：如法兰密封面型式与表中规定不同时，用户应在合同中注明。·标准与规范Standards设计与制造Designandmanufacture结构长度Facetofacedimension压力温度等级Gradeofpressure-temperature连接法兰connectingflange试验与检验TestandinspectionGBl2236GBl22221GB9131JB/T74HG20604JB/T74GB9131HG20592～20635GBl3927JB/T9092-1999·主要尺寸及重量Maindimensionsandweight公称压力PN(MPa)Nominalpressure公称通径DN(mm)Nominaldiameter外形尺寸和连接尺寸/mmDimensions重量/kgWeightLDD1D2b-fZ-ødD3H1.65023016012510016-24-18185160226529018014612018-34-18215177268031O19516013520-38-182351873310035021518015520-38-182552023912540024521O18522-38-182852275715048028024021O24-38-233302638020055033529526526-312-233852939525065040535532030-312-2545533017530075046041O37530-412-2551538226035085052047043534-416-2554543036040095058052548536-416-30600480496500115070565060844-420-347305605882.55023016012510020-34-18185177226529018014512022-38-18215192308031O19516013522-38-182351923510035023019016024-38-232602175212540024522018828-38-252962507315048030030021830-38-2533027010320055036035027634-312-2538035013525065042537033236-312-3043041O19630075048543039040-416-3049043028535085055049044844-416-3454545038840095061O55050548-416-34600560496500115073066061052-420-41730618641·主要尺寸及重量Maindimensionsandweight公称压力PN(MPa)NominalDressure全称通径DN(mm)Nominaldiameter外形尺寸和连接尺7/mmMainexternalandconnectingdimensions重量/kgWeightLDD1D2D6b-ff2Z-dD3H4.O502301601251008820-344-18185177226529018014512011O22-348-1821O192308031O19516013512122-348-18235192341OO35023019016015024-34.58-232602175212540027022018817628-34.58-252952597315048030025021820430-34.58-2533027010320055037532028226038-34.512-3045034021225065044538534531342-34.512-3444540129730075051045040836446-44.516-3454542336235085057051O46542252-4516-34570460450400g5065558553547458-4516-41625490585500115075567061257662-4520-487306186416.4503001751251058826-344-2321O192306534020016013011O28-348-23235207418038021017014012130-348-23235207481OO43025020016815032-34.58-252702357212550029524020217036-34.58-3031526510815055034028024020438-34.58-3436029715520065040534530026044-34.512-3442035721725077547040035231348-34.512-4148040534130090053046041236454-44.516-41560465472350102559552547542260-4516-41615514627400115067058552547465-4516-48675568882500140080070564057670-4520-5473562010271O.O503001951451128828-344-2521O192416534022017013811O32-348-25235207488038023018014812134-348-25260235721OO43026521O17215038-34.58-3029526510812550031025021017542-34.58-3433531313015055035029025020446-34.512-3442536021720065043031231226054-34.512-4145042034125077550038238231360-34.512-41535480472·主要尺寸及重量Maindimensionsandweight公称压力PN(MPa)Norminalpressure公称通径DN(mm)Nominaldiameter外形尺寸和连接尺寸/mmDimensions重量/kgWeightLDD1D2D6b-ff2Z-dH16.O503002151651328836-348-2525149653402451gO15211O44-348-30282588038026020516812146-348-3032011O1OO43030024020015048-34.58-3435616212550035528523817660-34.58-4139321415055039031827020466-34.512-4143026720065048040034526078-34.512-4847031825075058048542531388-34.512-5451437025.O5036821O1601287040-358-2531063654192602031659748-358-30346788047029023019011654-358-34385921OO5463602g224513866-368-4140616812567338531827017076-3612-4153422015070544036030519082-3612-4556027020083253544038024592-3612-51318320250991670572508319110-3616-55673390)