CJ202-2004建筑排水系统吸气阀.pdf 37页

'口J中华人民共和国城镇建设行业标准CJ202-2004建筑排水系统吸气阀Airadmittancevalvesforbuildingdrainagesystems2004-12-02发布2005-06-01实施中华人民共和国建设部发布 口202-2004前言条文5.8,5.9为强制性条文，其余为推荐性条文。为提高吸气阀安全的可靠性、保证产品质量，制定本标准。本标准修改采用欧盟EN12380.2;20028排水系统吸气阀要求、试验方法和一致性评定》。考虑到对我国开发吸气阀技术的发展要求，本标准不规定产品的结构，只适用于采用重力方式密封。本标准的附录A,B,C,D为规范性附录，附录E为资料性附录。本标准由建设部标准定额研究所提出。本标准由建设部给水排水产品标准技术委员会归口。本标准由北京国泰业兴建材有限公司、北京建筑工程学院负责起草，思都得(Studor)中国有限公司参加起草。本标准主要起草人:于飞、吴俊奇、陈永祥。标准分享网www.bzfxw.com免费下载 CJ202-2004建筑排水系统吸气阀范围本标准规定了建筑排水系统吸气阀的分类、要求、试验方法、检验规则、标志、包装、运输和贮存本标准适用于承受不超过正压力10000Pa，且在一20℃一+60℃的温度范围内工作的吸气阀。化工、实验室以及其他特殊场合下使用吸气阀，可参照本标准执行2规范性引用文件下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有的修改单(不包括勘误的内容)或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究是否可使用这些文件的最新版本。凡是不注日期的引用文件，其最新版本适用于本标准。GB/T700碳素结构钢GB/T319。变形铝及铝合金化学成分GB/T3511硫化橡胶或热塑性橡胶直接自然气候老化试验方法GB/T5836.2建筑排水用硬聚氯乙烯管件GB/T7306.155密封管螺纹第1部分:圆柱内螺纹与圆锥外螺纹GB/T7306.2550密封管螺纹第2部分:圆锥内螺纹与圆锥外螺纹GB/1-8802热塑性塑料管材、管件维卡软化温度的测定GB/T8803注射成型硬质聚氯乙烯(PVC-U),氯化聚氯乙烯(PVC-C)、丙烯睛一丁二烯一苯乙烯三元共聚物(ABS)和丙烯睛苯乙烯一丙烯酸盐三元共聚物(ASA)管件热烘箱试验方法GB/T14162-1993产品质量监督计数抽样程序及抽样表(适用于每百单位产品不合格数为质量指标)GB/T15256硫化橡胶低温脆性的测定(多试样法)CJ/"I"177-2002建筑排水用卡箍式铸铁及管件HG/T3091-2000橡胶密封件给、排水管及污水管道用接口密封圈材料规范FN12380:2002《排水系统吸气阀—要求，试验方法和一致性评定》Airadmittancevalvesfordrainagesystems-requirements,testmethodsandevaluationofconformitybyEuropeanCommitteeforStandardization3术语和符号3.1术语3.1.1吸气阀airadmittancevalve(缩略号AAV)只允许空气进人建筑排水系统的单向阀。3.1.2吸气fdeterminedairflowcapacity在(-250士10)Pa的压力下，单位时间内通过吸气阀的气体流量(L/s).3.1.3开启压力openingpressure吸气阀自动开启时，阀内的负压值。 口202-20043.1.4气密性airtightness吸气阀在其内部承受规定的正压力时所具有的密封性能。3.1.5过渡接头connector吸气阀与排水管道之间的连接件。3.2符号吸气阀符号:注1:箭头方向表示气流方向注2采用国际通用符号4分类按安装位置不同可分为立管用吸气阀和支管用吸气阀两类按材质不同可分为金属吸气阀和热塑性塑料吸气阀两类。5要求5.1环境要求吸气阀应适应-20"C一+60℃的温度范围内，无严重的油污污染的环境下使用5.2材料要求5.2.1产品的阀体材料采用热塑性塑料类的，按GB/T8802,GB/丁8803的规定执行;采用金属类的，按GB/T3190,GB/T700的规定执行5.2.2产品的密封隔膜宜采用三元乙丙橡胶、氯丁橡胶、硅橡胶或性能更好的材料材料的性能应符合GB/T3511,GB/T15256规定的标准。5.2.3用于特殊强腐蚀性场合(如化工行业、实验室等)的吸气阀，产品供应商应提供产品阀体和密封材料的抗化学性证明。5.2.4当直接在阳光照射下使用时，吸气阀应具有抗老化功能。产品供应商应提供产品阀体的原材料抗紫外线的证明或对其外表保护方式的说明5.3过渡接头5.3.1吸气阀与过渡接头宜采用螺纹接口、橡胶密封或卡箍等可拆卸的方式不宜采用与排水管永久性连接或直接粘接5.3.2其连接的气密性应符合本标准附录13的要求5.3.3过渡接头与排水管的连接应不影响排水系统内的正常通气效果。过渡接头应符合GB/T5836.2,GB/T7306.1,GB/T7306.2,CJ/T177的规定5.3.4过渡接头安装应保证吸气阀的垂直倾斜度不超过5口的范围。5.4颜色产品颜色可由供需双方商定5.5外观5.5.1产品的外观应光滑，没有毛刺，无气泡、裂口、裂纹、脱皮、严重的冷斑、凹坑、色泽不均及分解变色线，合模缝、浇[CI应平整、无开裂。5.5.2外形应最大限度地限制外来异物或材料进人阀内，对不能实现这一要求的产品应有外围措施得以保证。标准分享网www.bzfxw.com免费下载 CI202-20045.6内部结构5.6.1产品的内部结构应无缺损、变形，且无气泡、裂口、裂纹、脱皮、严重的冷斑、色泽不均及分解变色线，合模缝、浇口应平整、无开裂。5.6.2内部构造应保证凝结水回流到排水系统中。5.7抗冲击性当按附录A进行坠落试验后，功能不应改变，且产品不得变形或破裂。5.8气密性吸气阀分别在其内部承受30Pa,500Pa和10000Pa正压力下，按附录B进行气密性试验，保压5min后的压力应分别不小于5min前的压力的90%,5.9抗疲劳和耐温性当按附录C.1在常温和高温的条件下进行疲劳性试验后，吸气阀应符合附录B.3的规定。吸气阀冷冻试验后，应符合附录C.2.3的准则5.10开启压力和吸气f在0Pa--150Pa之间，应测出吸气阀的开启压力，且在(-250120?Pa压力下测得的吸气量符合附录D.3的准则吸气量不应小于表1、表2规定的要求。表1立管用吸气阀排水管公称直径/mm最小吸气量/(L/s)5047516902211032表2支管用吸气阀最小吸气量/(1./s)排水管公称直径/mm支管50肠充满度支管75写充满度以上320.601.240O.751.5500.751.5753.006.0903.406.81103.7575试验方法6.1试验温度试验应在150C--30℃的自然环境下进行;当测试项目对温度有要求时，按要求进行。6.2试验内容6.2.1材料生产供应商应提供原材料的物理机械性能指标，其中属热注塑材料的，应进行维卡软化温度和烘箱试验，应满足5.2的要求6.2.2过渡接头采用内插式橡胶接头，除检查内外部有无残缺外，还要检查与吸气阀和排水管的尺寸是否匹配;采 Q202-2004用卡箍式连接，除检查密封橡胶外，外卡套应采用不锈钢;采用螺纹连接，按GB/T7306.1,GB/T7306.2的规定检查，应满足5.3的要求。6.2.3外观用目测检查外观，应满足5.5的要求，并用精度至。.01mm的量表测量接口中部相互垂直的两个外径，计算其算术平均值;接口采用螺纹连接的按GB/T7306.1,(;B/T7306.2的规定检验。6.2.4内部结构用光源照射，应满足5.6的要求。6.3测试吸气阀时按照生产厂家的要求安装后，应按下列顺序进行试验:飞)坠落(规范性附录A);2)在30Pa,500Pa和10000Pa压力下的气密性(规范性附录B);3)抗疲劳和耐温性(规范性附录C);4)开启压力和吸气量(规范性附录D)o试验使用仪器的精度应与本标准的规定相符。7检验规则检验分为出厂检验和型式检验。7.1抽样7.1.1分类同一原料、配方和工艺生产的同一规格产品，以每百单位产品不合格数为质量指标，采用GB/T14162抽样方案;按质量特性分为:A类不合格，B类不合格。7.1.2A类不合格:监督质量水平p。为。.65，检验水平为1，随机抽取8个样品，不合格数小于1对8个样品按附录A、附录B逐个检验，再随机抽取其中的1个样品进行附录C的检验，随机抽取3个样品(包含附录C的样品)进行附录D的检验7.1.3B类不合格:监督质量水平P。为4。，检验水平为11，随机抽取的8个样品中，不合格数小于2.检验的项目为外观、内部结构、过渡接头;属热塑性塑料产品，应随机抽取其中的1个样品进行烘箱和维卡软化温度试验。7.2出厂检验7.2.1验收标准不得大于GB/T14162---1993中表8.1.2,8.1.3的质量水平和检验水平。7.2.2出厂检验项目要求和方法见表3表3吸气阀出厂检验项目本标准的章、条检验项目要求方法外观5.5目测内部结构5.6光源过渡接头5.36.2.2气密性试验5.8附录B开启压力和吸气量5.10附录D7.2.3产品应经过企业质检部门检验合格方可出厂。7.3型式检验7.3.1一般情况下每年至少1次进行型式检验，属于下列情况之一时，应进行型式检验:标准分享网www.bzfxw.com免费下载 Cl202-2004a)新产品试制鉴定时;b)停产1年以上恢复生产时;c)当结构、原料、工艺有较大变动、可能影响产品质量时;d)出厂检验与上次型式检验结果差异较大时;。)国家质量监督机构认为需要时。7.3.2型式检验试样在出厂检验合格批中随机抽取8个样品进行检验。7.3.3型式检验项目和试验方法见表4表4型式检验项目本标准章、条项目要求试验方法出厂检验项目表3表3烘箱试验热注塑材料GB8803维卡软化温度热注塑材料GB8802坠落试验5.7附录A抗疲劳和耐温性试验5.9附录G7.3.4判定:如果有1个(或以上)项目不符合A类不合格、B类不合格的质量要求，可随机抽取双倍样品进行该项的复验。如仍不合格，则判该批产品为不合格。标志、标签、标记、使用说明8.1标志、标签每个产品应标明以下内容:1)产品名称、商标、识别条码;2)本标准编号、检验机构标志;3)生产企业名称、详细地址、联系方式和产品原产地;4)产品的吸气量、公称直径、使用温度和适用范围;5)生产日期。8.2标记产品上应有明显的警示标记或警示说明。8.3使用说明书产品说明书应放在每个产品的包装盒内。说明书中除给出与排水管的连接方法和安装示意图外，还应对安装位置和地点作如下说明:1)易于接近，又不易被人为损坏的地方，避免严重油污的环境;2)垂直安装;3)良好的自由空气流动空间;4)产品安装于排水横管上时，其吸气阀进气口与排水管上部间距不小于100mm;安装于立管顶部应保持吸气阀进气口与吊顶板距离不小于150mm;5)排水系统闭水试验后方可安装;6)使用年限。9包装、运输、贮存包装每个吸气阀产品都应设计包装盒，盒内应有适当的绝热壳保护产品。 CI202-2004每个包装箱重量不宜超过25kg，产品不同规格尺寸应分别装箱不得散装。9.2运输产品在装卸、运输时，不得受剧烈撞击、抛摔和重压。9.3贮存存放场地应平整，堆放应整齐，距离热源不得少于1m的范围，通风良好，不得露天曝晒。标准分享网www.bzfxw.com免费下载 CJ202-2004附录A(规范性附录)坠落试验程序本测试应在平整干净的水泥面上进行(见图A.1);对外带绝热壳的吸气阀应去掉外绝热壳后测试a)确定测试地表千净;b)把吸气阀置于距地面7(十。.02,0)m的高度，见方位1;c)放开吸气阀坠落;d)拿起吸气阀，换成方位2坠落;e)拿起吸气阀，换成方位3坠落。1—方位1;2一方位2;3一方位30图A.1坠落试验—高度和吸气阀的方位A.2准则坠落后，样品应无变形和破裂，且使用功能正常 CI202-2004附录B(规范性附录)气密性试验B.1装置a)b)c)d)的与吸气阀过渡接头相匹配的绝热管1根，长度至少为管径的2.5倍以上，底部封闭(见图B.1);充气阀1个;气泵1台;压力表1块(精度为士。.5Pa);固定吸气阀的可调支架1台1一一绝热的管;2—可调支架;3一一吸气阀;4一压力表;5—充气阀;6气泵;7—排水管图B.1气密性试验装置图B.2程序程序应按下列顺序进行:a)安装与该管径相一致的堵头(符合GB/T5836.2)，在10000(0，一100)P。检查下，至少保压5min，检查设备的密封情况;在符合密闭要求的情况下，再进行下列测试;b)拆下堵头，按厂家说明的要求安上包括过渡接头在内的吸气阀;。)打开充气阀开关，缓慢加压到30(+10,0)Pa。关闭充气阀并记录初始压力;d)保压5min后，记录实时压力;。)如果内在压力值减少到初始值的90，测量精度在士。.5Pa内，检查装置的密闭性;如果装置中漏气，修堵漏气部分并重新进行步骤c),d);F)打开充气阀开关，缓慢加压到500(+10,0)Pa。关闭进气阀并记录实时压力;妇保压5min后，记录实时压力;标准分享网www.bzfxw.com免费下载 Cl202-2004h)如果内在压力少于450Pa,测量精度在士。.5Pa内，检查装置是否仍然密闭;如果在装置中查到漏气，修堵漏气部分并重新进行步骤f),g);i)如果实现上述的试验要求后，继续打开充气阀把气加压到10000(0，一100)Pa。关闭充气阀并记录实时压力;J)保压5min后，记录实时压力;k)如果测得的内在压力少于90，用肥皂水观察气泡的办法检查装置的气密性;如果在装置中查到漏气，修堵漏气部分并重新进行步骤i),1).B.3准则保压5min后记录的实时压力应分别不小于:a)初始值30(+10,0)Pa的90%;b)实时值500(+10,0)Pa的90%;c)实时值10000(0，一100)Pa的90%。 CJ202-2004附录C(规范性附录)抗疲劳和耐温性试验(仅在其中一个样品上做)CC装置1适用于温度在((20士6)℃和((60士2)℃的装置，见图C.1，其组成有:a)可控制2种温度内运行的机械装置1套:b)气流转换装置和接头1套;c)山温度计((0.10C)和压力测试仪器(士。.6Pa)附带循环记录仪各1套;通风管1根。b:b一因O霉纂/sYU.3o.s52m}m最mIRJ"1"小1一一探头;2—通气孔;3吸气阀;4一一环境温度控制箱;5一气流转换器;6一电风扇;7吸气阀动作显示仪图C.1抗疲劳性测试装置图(+20℃~+20C+60C)注:用于气流转换器的传动动力装置不能设置在环境控制箱内C.1.2气流转换器应按(1,士2)次/min开闭吸气阀阀门，压力厂时间关系的结果见图C.20C.1.3程序产品有外保温盖时，该盖要安装在吸气阀上;在8个样品吸气阀中随机选1个测试a)将环境控制箱保持在(20士5)0C，时间为16h士5min的条件下对吸气阀进行开闭循环试验;b)实验结束后，复检附录B的气密性试验;c)将环境控制箱保持在(60士2)0C，时间为8h士vmin的条件下对吸气阀进行开闭循环试验;d)实验结束后，复检附录B的气密性试验C.1.4准则气流转换装置应保证吸气阀开启、关闭次数为(15士2)次/min(见图C.1和图C.2);吸气阀应满足附录B.3的准则。10标准分享网www.bzfxw.com免费下载 CJ202-20041士。.2_i_>0.5_1_1士。.21>。s州/一.口山只国队一/一23a-250时间(t)A图C.2抗疲劳性测试—压力/时间关系图C.2适用于温度一20℃的装置(见图C.3)C.2.装置应包括:a)DN110mm，长2.1m的立管1根;b)与立管直径相同长度为1.5m的支管1根，连接在距立管顶端下(1.3士。.01)m处;c)气体流量表和具有调速功能的电风扇各1个，安装支管端头;d)堵盖1个，设在电风扇出口处;e)DN110mm的P形存水弯1个，接在立管底部;约DN50mm的U形存水弯1个，接在P形存水弯的最大水封的水平面以上(0.5士0.01)m处;妒静压力探头和静压记录仪1套，设在距立管顶部1m处;h)7个。.8mXO.8mXO.8m的箱体，箱体有100mm厚的隔热绝缘体，其顶部有可开启的顶盖;盖子上开(12。士10)c耐的进气口;立管的顶部装在箱内，立管顶端距箱体底部(0.4士0.01)m，且立管穿越箱体底部处密封;i)2支精度为。.20C温度传感器;其中1支温度传感器应安装在距吸气阀20mm的范围内。C.2.2程序a)按照生产厂家的说明书，必要时用适当的工具把吸气阀连在立管的顶端;b)打开箱体上设置的进气口盖;c)用水灌满2个存水弯，调解电风扇将压力调至(-250f10)Pa;d)记录初始气流率;e)关闭电风扇，进气口密闭并封闭电风扇的排风口;f)冷却箱体内部;g)当箱体温度达到(-2013)℃后，在(5士0.5)min期间内，持续用流量为(10士1)L/s,温度为(40士3)℃的温水灌入DN50mn:的存水弯，让水从下部的存水弯流出;h)等待(1士0.1)h，必要时堵住水封的各个出口;D打开进气口并取下排风口堵盖，启动电风扇;J)在30s内调节电风扇将压力调至(一250士10)Pa;k)记录第二次的气流量11 Cl202-20041--吸气阀;2一温度探头;3-温度探头;4—压力表;5一一气体流量表;6—电风扇;7一一DN50mm存水弯;8-一DN110mm存水弯。图C.3冷冻试验的测试装置C.2.3准则第二次气流量应不少于初始气流量的90%,DN50mm管的水封保持深度应大于25mm,标准分享网www.bzfxw.com免费下载 CJ202-2004附录D(规范性附录)开启压力和吸气t试验D.1装里适当的装置(见图D.1)由以下组成:a)带有连接压力表的静压探头的立管1根;b)压力表1个(士0.5Pa);c)可调节各种速率并保持气流向下的电风扇1个;d)平均气流表1个(最小气流量0.1L/s)o注:测试应在自然干燥的固定的温度环境中，测定吸气阀开启瞬间的手段。既可以通烟气来观察，也可以通过压力变化来看气流变化。1-吸气阀;z一一压力表;3—平均气流表;4一一电风扇;a-5倍立管内径;b一一>10倍立管内径;c—2倍立管内径。图D.1吸气t测试装置D.2程序、a、.将吸气阀连接在管子顶端，与厂家说明书相一致;b、.了启动电风扇，导人向下的气流同时记录产生的静压和气流量;C，缓慢增加风扇速度直到吸气阀阀门打开，当静压突然升高时吸气阀就视为开启; CJ202-2004d)记录瞬间开启前的压力值，该值就认定为开启压力;注:在吸气阀打开即压力升高前，所测得最大压力值为开启压力e)调整电风扇的气流率达到压力为(-25。士10)Pa;f)测量并记录气流穿过管子的实际值;在试验的3个吸气阀中，最低实际流量定义为测定的吸气量;B)减少气流量，使压力为一150(0,-10)Pa;h)记录3个吸气阀的气体通过管段的实际流量值D.3准则L曰Ca、.、、了开启压力应在0Pa--150Pa;3个吸气阀中的最低气体流量为吸气量;压力为一150Pa时应产生可测量的气流量。标准分享网www.bzfxw.com免费下载 Cl202-2004附录E(资料性附录)试验报告E.1吸气阀的性能测试报告内容应包括下列有关的资料:”测试机构的名称和地址;2)报告的识别号;3)要求测试的人(出资者)的名字和地址;4)送样及其他情况(负责送样的人和日期);5)试验物品的名称和编号;6)测试期间，试验样品的条件、环境数据(温度、压力等);7)使用试验设备和仪器的编号;8)试验方法的误差;9)试验结果;10)结果的非精确度或不确定性;11)日期、测试人签名、测试单位公章 CJ202-2004ForewordInordertoensureaproductofgoodqualityandtoenhancethereliabilityoftheairadmittancevalves,weherebyestablishthestandard.Therevisionofthespecificationisbasedonrequirements,testmethodsandevaluationofconformi-tyaslaidoutaccordingtotheEuropeanStandardEN12380:2002Airadmittancevalvesfordrainagesystems.InconsiderationoftheneedforthedevelopmentofairadmittancevalvetechnologywithinChina,thestructureoftheproductarenotspecifiedinthestandardandisonlysuitableforuseinthegravita-tionaltypeforairproofingoftheproduct.ArticleNos.5.8and5.9aremandatorywhiletheothersarerecommendations.AnnexA,B,C,DarecriterionsandAnnexEcontainsreferenceinformationonly.ThestandardwasproposedbytheResearchInstituteofStandards&NormsattheMinistryofCon-struction,PRC.ThestandardhasbeengivenbytheMinistryofConstructiontotheDrainageDepartmentTechnicalStandardandNormsCommitteeforverificationThestandardiseditedbyBeijingGoldtideBuildingMaterialsCo.Ltd;BeijingInstituteofCivilEngi-neeringandArchitecture;Associatededitor:Studor(China)Ltd.Editors:YuFei,WuJunQi,ChengYongXiang.16标准分享网www.bzfxw.com免费下载 CI202-2004Airadmittancevalvesforbuildingdrainagesystems1ScopeThisstandardprescribesclassification,requirements,testmethods.evaluation,symbol,packaging,transportationandstorageforairadmittancevalvestobeusedindrainagesysteminstalledinsidebuildings.Thestandardissuitableforvalveswithinworkingrangeofpressurebelow10000Paposi-tivepressureandtemperaturefrom一20"Cto+60C.Forchemical,laboratoryandallotherspecialapplicationvalvescanrefertothisstandardforimplementation.2NormativereferencesThisstandardincorporatesbydatedorunderreference,provisionsfromotherpublications,thesenormativereferencesareusedcitedattheappropriateplacesinthetext,andthepublicationsarelis-tedhereafterFordatedreferences,theafterwardsrevision(notincludingcorrigendum)ortherevisededitionarenotapplicabletothisstandard.However,theagreementwithinallprofessionalinstitutionsareen-couragedthatthelatestversionofthesedocumentscanorcannotapplytothestandard.Forundatedreferences,thelatesteditionofthepublicationreferredtoapplies.GB/T700CarbonstructuralsteelsGB/T3190Wroughtaluminiumandaluminiumalloys--ChemicalcompositionlimitsGB/T3511Rubber.vulcanizedandthermoplasticThetestmethodofresistancetodirectnaturalweatheringGB/T5836.2UnplasticizedpolyvinylchloridefittingsfordrainageinbuildingsGB/T7306.1Pipethreadswith55degreethreadanglewherepressure-tightjointsaremadeonthethreads-Part1:ParalelinternalandtaperexternalthreadsGB/T7306.2Pipethreadswith55degreethreadanglewherepressure-tightjointsaremadeonthethreads--Part2:TaperinternalandexternalthreadsGB/T8802Thermoplasticpipesandfitting-DeterminationofvicatsofteningtemperatureGB/T8803Injection-mouldedunplasticizedpoly(vinylchloride)(PVC-U),chlorinatedpoly(vinylchloride)(PVC-C),acrylonitrilebutadiene-styrene(ABS)andacrylonitrile-styrene-acrylester(ASA)fittings-HotoventestmethodGB/T14162--1993Samplingproceduresandtablesforproductqualityaudit(Applytoinspectionbyattributesfornonconformitiesperhundredunits)GB/T15256Rubber,vulcanized--Determinationoflow-temperaturebrittlenenss(multipletestpiecemethod)CJ/T177-2002WorkcouplingtypecastironpipeandfittingsforbuildingdrainageHG/T3091-2000Rubberseals--Jointringsforwatersupply,drainageandseweragepipelines-17 Cf202-2004SpecificationformaterialsEN12380:2002Airadmittancevalvesfordrainagesystems-requirements,testmethodandevalua-tionofconformitybyEuropeanCommitteeForStandardization3Termsanddefinitions3.1Terms3.1.1AiradmittancevalveAAVallowingairenterintothedrainagesystemsasonewayvalve.Only3.1.2Determinedairflowcapacityvalvewhileproducingapressureof(一250士10)Paatthema-Lowestflowrateofanairadmittancenometertapping.3.1.3Openingpressureattheinstantofopeningoftheairadmittancevalve.Valueofthepressure3.1.4Airtightnessvalvecanwithstandpositiveairpressureinaspecifiedtime.Theabilityofairadmittance3.1.5Connectorinstalledbetweenairadmittancevalveanddrainagepipe.Thejoiningdevice3.2SymbolsThesymbolsforairadmittancevalveusedinthisstandard.NOTE1.thearrowsdesignatethedirectionofairflowNOTE2.adoptionoftheinternationalcommonsymbol4Classificationclassifiedaccordingtotheirinstalledlocation:stackpipesystemandAiradmittancevalvesare18标准分享网www.bzfxw.com免费下载 Cr202-2004branchpipesystem.Airadmittancevalvesareclassifiedaccordingtotheirmaterialproperties:metalandthermoplastic5Requirements5.1EnvironmentrequirementAiradmittancevalvesaredesignforusewithinatemperaturerangebetween一200Cto+600C,inanon-greasyenvironment.5.2Materialrequirement5.2.1MaterialsusedtomanufacturethebodyofairadmittancevalvearemadeaccordingtoGB/T8802,GB/T8803standardofthermoplasticmaterials,andGB/T3190,GB/T15256formetalstandards.5.2.2Ethylene-propylene-non-conjugateddienerubber(EPDM)，neopreneandsiliconerubberoranyotherbetterperformingmaterialsarerecommendedasmaterialsfortheairtightmembraneintheairadmittancevalve.PerformancesofmaterialsaresubjecttoGB/T3511andGB/T15256standards.5.2.3Themanufacturemustprovideproofofchemicalresistanceforbodyandmembraneonairadmittancevalveifitistobeusedincorrosiveenvironment(chemicalapplication,laboratoryetc.).5.2.4Themanufacturermustprovideproffofanti-anti-ultraviolet,anti-agingandinstructionofbodysurfaceprotectionwhenairadmittancevalveareusedoutdoorunderdirectsunlight.5.3Connector5.3.1Airadmittancevalvemaybeconnectedwiththread,rubbersealed,orclampetcwithitscon-nector.Directorindirectpermanentjointsarenotpermitted.5.3.2Anassemblyofanairadmittancevalvefittedtoapipe,inaccordancewiththemanufacturer"sinstructions,shallbeairtightwhentestedaccordingtotheairtightnesstest(AnnexB).5.3.3Theconnectionofconnectoranddrainagepipeshouldbenotaffecttheoperatingperformanceofairadmittancevalve.ConnectorsaresubjecttothestandardsofGB/T5836-2,GB/T7306-1GB/T7306-2andCJ/T177.5.3.4Installationofconnectorshouldbefixedairadmittancevalvewithin50verticaly5.4ColorColorofairadmittancevalvetobeagreedbetweenthemanufacturerandbuyer.19 C】202-20045.5Appearanceofairadmittancevalveshouldbesmoothanddoesnothaveanysharpad-5.5.1Theappearancecrack,desquamation,speckle,pit,unevenluster,linesofdecompositiongas,air-bubble,breach,Seamofedgesshouldbematchedbetweensub-assemblies.Thegateofinchange,dehiscence,etc.jectionshouldbeflatandhavenocracks.Thescreeningofairadmittancevalveshouldprovidemaximumrestrictionforexternalsub-5.5.2stanceormaterials,Optionalaccessoryisrequiredforproductwithoutthisfunction.5.6Internalstructure5.6.1Theinternalstructureoftheairadmittancevalveshouldbesmoothanddoesnothaveanysharpedges,air-bubble,breach,crack,desquamation,speckle,pit,unevenluster,linesofdecomposi-tionchange,dehiscence,etc.Seamofedgesshouldbematchedbetweensub-assemblies.Thegateofinjectiontobeflattedandhavenocracks5.6.2Theinternalstructureisdesignedtoensurecondensedwaterisflowedbackintodrainagesystem5.7DroptestAAVshouldundergothedroptestaccordingtoAnnexA.theperformanceofthevalveshallnotbeaffectedorbedistortedorcrackinanyway5.8Airtightnesstest(mandatory)Airtightnesstestforairadmittancevalveshouldbeundertakenat30Pa,500Paand10000PaunderpositivepressureaccordingtoannexB.thepressurerecordedafter5minshallnotbelessthan90%oftheinitialrecordedpressure.5.9Enduranceandtemperaturetest(mandatory)WhenthetestaccordingtoAppendixChasbeencompletedunderroomtemperatureandhightem-conditions,theairadmittancevalveshouldconformtothespecificationsasstatedinAnnexperaturethefreezingtest,theairadmittancevalveshouldconformtotherequirementsstatedinAn-B.AfternexC.2.3-5.10OpeningcharacteristicandairflowcapacitytestTheopeningpressureshallbemeasuredbetween0Paand一150Pa.Airflowcapacitytestshallbe250Pa士10PaaccordingtoannexD.3requirement.Airflowcapacityismeasuredwhenpressureis一designatedtobenotlessthantable1andtable2.2n标准分享网www.bzfxw.com免费下载 C1202一2004TabIe1AiradmittancevalveforstackPiPesNominalPIPesize/rnmMlnlmumairflowca闪cltv/〔L尹5)5O4l一一!7516902211032一Table2AiradmittancevalveforbranchPiPes卜-一-一-一塑匕1一二竺坚业j旦岁竺些下.一丫竺一_____50%Suff.c，encv一75%Suff，C，encvo『more32"#一一众60，12400.7511.5500.7515753o606.8903.40110375{756TestingMethods6.ltestingtemperatureTestingshallbecarriedoutlnthenatura1environmentatatemperaturerangeo币15℃一30℃.ThetemPeraturerequirementshouldbefoIlowedwheresPecifled‘6.Ztestingcontent6.2.IMateFia{ThemanufacturershouldProv!detherequiredtechn!calsPeciflcation.ThermoPlasticshallbetestedaccordingtothereIevantrequJrement(see52).6.22COnneCtorWhereinternalConnectorsareused，therubbersealconnectionsha]lbeinsPectedandfreefromanydeformityandfittIngswithalradmittancevaIVe;CIamPconnectorShaIIbemadefr0mstainlessstee}andinsPectionofairProofshaIlbechecked.ThreadconnectionshaIlbeinsPectedaccord番ngtoGB/T7306一1，GB/T7306一Zstandard(sees.3).6.2.3APPearanceTheaPPearanceshallbeinsPectedbyvisualobservationaccordingtorequ1rements(see55)21 C.1202-2004AairadmittancevalvewiththreadconnectionshallbeinspectedaccordingtoGB/T7306-1，GB/T7306-2(see5.3)whereameasuringdeviceshallmeasuretwooutsidediametersatthemiddleofthethreadthatareperpendiculartoeachother,withanaccuracy0.01mm.6.2.4InternalstructureInternalstructuresareinspectedwithilluminationaccordingtorequirement(see5.6)6.3Airadmittancevalvetestsshallbecarriedoutaccordingtothefollowingorderafterithasbeeninstalledaccordingtomanufacture"sinstructions.4321、1Droptest(criteriaannexA):1airtightnesstestatpressure30Pa,500Paand10000Pa(criteriaannexB)!Enduranceandtemperaturetest(criteriaannexC);1Openingcharacteristicandairflowcapacitytest(criteriaannexD).Accuracyoftestingequipmentisdesignatedtobeaccordingtothisstandard.7EvaluationofConformityComplianceofanairadmittancevalveischeckedusingfactoryandtypeinspection.7.1Sampling7.1.1ClassQualityindexshallbeappliedwithinstandardGB/T14162accordingtothefailureper100unitesofairadmittancevalveswithidenticalmaterial,formula,technologyandspecification.GradeAandgradeBareunqualified.7.1.2UnqualifiedgradeAEightsamplesareextractedstochasticallyattheinspectionlevelisIwithinspectionqualitypois0.65.Unqualifiednumberofsamplesislessthan1EightsamplesaretestedaccordingtoannexAandannexB.onesamplestoberandomlychosentobetestedaccordingtoannexC.ThreesamplesarechosenfortestaccordingtoannexD,includingtheoneundertaketheannexCtest7.1.3UnqualifiedgradeBEightsamplesareextractedstochasticallyatinspectionlevelisIIwithinspectionqualitypois4.0Unqualifiednumberofsamplesislessthan2.22标准分享网www.bzfxw.com免费下载 CJ202-2004Appearance,internalstructureandconnectorshallbetested.Onesampleischosenrandomlytobetestedaccordingtothethermoplasticstandard.7.2Factoryproductioncontrol7.2.1Theapprovalqualityshallnotbelargerthantable8.1.2ofqualityindexand8.1.3ofinspec-tionindexinstandardGB/T14162-1993.7.2.2Inspectionrequirementandmethodsforfactoryproductioncontrolseetable3.Table3RequirementandmethodsforfactoryproductioncontrolChapterinthisstandardInspectionsubjectRequirementMethodAppearanceInspectionObservationInternalstructure5.6川ummationConnector5.36.2.2Airtightnesstest5.8AnnexBOpeningcharacteristicand5.10AnnexDairflowcapacitytest7.2.3Theproductshallbeinspectedandapprovedbyqualifiedinspectorsattheenterprise"squal-itycontroldepartmentbeforedelivery.7.3Typeinspection7.3.1Typeinspectionshallbecarriedoutatleastonetimeperyear.Itshallbetestedinoneofthefolowingsituations.、a.了Appraisalofnewproductduringtrialmanufacturing;b1Valvestoberemanufacturedwhichhasbeensuspendedmorethanoneyear;、C、jQualityofvalveshallbeaffectedbymajormodificationintermsofstructure,materialandmanu-facturingtechnology;山Largedifferentbetweenproductiontestandprevioustypetest;e)Necessaryisrequiredbythenationalqualitycontrolorganization.Eightsamplesshallbeinspectedfortypetestaftertheyhavepassedfactoryproductioncon7.3.2troi7.3.3Inspectionrequirementandmethodsfortypetestseetable4.2只 CI202一2004Table4R阂uirementandmethodsfortyPeinsPection{ChaPterinthisstandardlRequirementMethodRequ，『emen，一Me，hodFactoryProductloncontrol一Table3T日b}e3OVe门tOStThermoPlast，cGB8803VikasofttemPtestThermoPlasticGB8803一一DroP，es万-一一门厂一5_7一#{"{{八;휻云万一一EndUranceandtem解raturetestl59IAnnexC7.3.4Determlnatlorl:whenoneormoreofthesamP{esdurlng1nsPectiondonotPassthequa1ltyrequirelnentofgradeAorGradeB，adoublequantItyofsamPlesshouldbese}ectedandtestedasec-ondtImeTheProductsshalJbedeemeddlsqualifledwhen!tfallsthere一examlnation.SSymbol，labeling，markingandmanualofinstructions8.ISymbol，labelingEve即a井radmlttancevalvelsdesignatedtobemarkedthefoJJow二nglnformatlon:1)Productname，Iogoandbarcodeldentiflcation;2)Seria{numberofthisstandardandlogooftheInsPectlonorganization;3)Manufacturernamedetalladdress，contactinformatIonandmanufaCtureoforlgln;4)AirflowcaPacity，nominalPIPeslzeDN·r刁ngeofuseand0PeratingtemPerature;5)oateofmanufacture.8.ZMarklngProductshal]bemarkedwlthwarn.ngofsymbolorlnstruction.8.3M8nUa}ofinstrUctlonsAninstructionmanualaccomPanleseachPackofair吕dmltt月ncevalve，oralnageconnectlonandinsta卜lationsketchshaiIbeProvidedinthelnstructlon介lanualwltht李飞efo}lowlnglnformation:1413、1211Easllyaccess!ble，safelocatIonandavoldaheavygreasyenvIronment;Vertlcalinstallationrequlred;Goodclrcu}atlonoffreshalr;WhenlnstaIllngonahorIzontaldralnagePiPe·t十1edistancebetweenthePlPesandvaIveshouldbeatleast1O0mm;whenlnstallingonstackPIPes，themin1mumdlstanceInbetweenshouldbeatleast150mm;65、、了、Airadmlttancevalveshallbelnstal]edafterthedralnagesystemshavebeentested;7夕Lifetlme-点﹃︺标准分享网www.bzfxw.com免费下载 C】202-20049Packaging,transportationandstorage9.1PackagingEachairadmittancevalveshallbepackedinindividualpackagingboxes,withtheappropriatetemper-atureinsulationprotection.Eachboxshouldnotbemorethan25kgandeachproductwithdifferentsizesshouldbepackedseparately.Thereshouldbenoloosepacking.9.2TransportationAiradmittancevalvesshallnotbesubjecttoexternalforce,thrownandweightedbyheavyobjectsduringloading,unloadingandtransportation.9.3StorageTheairadmittancevalvesshouldnotbestoredunprotectedinopenair.Storagefloorshallbeleveloff,well-ventilatedandprotectedfromdirectsunlight,minimum1mfromandminimum1mfromheatsource.Pilesupareingoodorder.25 口202-2004AnnexA(Normative)DroptestA.1procedureValveswithremovableinsulationshallbetestedwithouttheinsulationinposition.ThetestshallbecarriedoutasfollowsoveraconcretesurfaceasshowninfigureA.1.a)b)ensurethatthesurfaceisclean;holdtheairadmittancevalvewithitslowestpoint1十吕眨mabovetheconcretesurfaceinorien-tation1(upsidedown);1、刁C1releasetheairadmittancevalve;eUpickupvalve,changetoorientation2(topuppermost)anddrop;pickupvalve,changetoorientation3(sideways)anddrop.1-Orientation1;2--Orientation2;3-Orientation3FigureA.1Droptest;HeightandvalveorientationA.2CriteriaThevalveshallshownosignsofdeformationorbreakagewhichmayeffectthefunctioning.2E标准分享网www.bzfxw.com免费下载 Q202-2004AnnexB(Normative)AirtightnesstestB.1ApparatusThetestapparatusshallconsistof:a、aninsulatedpipeofappropriateddiametertosuitairadmittancevalvesize,withalengthof2.5timesofdiameterinmm,whichshallbesealedatthebase(seeFigureB.1);b、.产anairinletvalve,connectedtothepipe;、C冬apump;d、、，厂amanometer(with士0.5Paaccuracy);e1asuitableclampmayberequiredtorestrainpush-fitvalvesduringtesting.1Insulation;2-Adjustableclamp;3-airadmittancevalve4--Manometer;5-Airinletvalve;6Pump;7drainagepipe.FigureB.1AirtightnesstestapparatusB.2ProcedureTheprocedureshallbecarriedoutasfollowsa)withaplug(accordingtoGB/T5836.2)fittedcheckthatthetestapparatus,showninFigureB,isairtightwhensubjecttopressure10000一0,ooPaforatleast5min;b)removetheplugandfittheairadmittancevalveasthemanufacture"sinstructions;27 C】202-2004C，opentheairinletvalveandslowlyraisethepressureto30.oPa.Closetheairinletvalveandre-cordtheinitialpressure;e、d、加recordtheinternalpressureafter5min;ifthepressureislessthan90%oftheinitialvalve,measuredwithanaccuracyof士0.5Pa,checktheapparatusisstillairtight.Ifaleakisdetectedintheapparatus,rectifyandrepeatfromc),d);jfg1)k))川))opentheairinletvalveandslowlyraisethepressureto500"0Pa.Closetheairinletvalveandrecordthesetpressure;recordtheinternalpressureafter5min;ifthepressureislessthan90%ofthesetvalue,measuredwithanaccuracyof土0.5Pa,checktheapparatusisstillairtight.Ifaleakdetectedintheapparatus,rectifyandrepeatfromf),g);iftheprevioustestcriteriaareachieved,raisedthepressurebyopeningtheairinletvalveandpumpingairintotheapparatusuntilitreaches10,000_0,mPa.Closethevalveandrecordthesetpressure;afterfiveminutesrecordtheinternalpressure;ifthepressureislessthan90%ofthesetvalue,measuredwithanaccuracyof士0.5Pa,checktheapparatusisstillairtightusingasoapsolutionandinspectingforairbubbles.Ifaleakisde-tectedintheapparatus,rectifyandrepeatfrom})，」).B.3CriteriaThepressurerecordedafter5minperiodshallnotbelessthan:C、b、，a、.ofthefirstrecord30"o0Pa;oftheactualrecord500"0Pa;矛oftheactualrecord10000-L0Pa2R标准分享网www.bzfxw.com免费下载 CJ202-2004AnnexC(Normative)Enduranceandtemperaturetest(Onlyonesampletobetested)C.1ApparatusC.1.1Thetestapparatus(seefigureC.1)canprovidetemperaturerangebetween(20士5)0Cand(60士2)"Cshallconsistof:a、amechanismwhichcanbeoperatedwithintwotemperatureenvironments.Themechanismcomprisesatube,fittedwithanelectricfanatoneend;bIameansofdivertingairflowattheotherendandaconnectionforAAV;CJJTemperature(0.1C)andpressuremeasuringdevices(土0.5Pa)andcyclerecordingmeans;刁、UweAnatmosphericventpipe.AnexampleofsuitableapparatusisshowninFigureC.1b:l日丛5EE2O扮0.05.2mmmm霉a1-Pressuretapping;2-Atmosphericvent;3--Airadmittancevalve;4一Temperaturecontrolledenvironmentcontainer;5--Meansofdivertingairflow;6-Fan;7一AAVoperatingindicator.FigureC.1Endurancetestapparatus(+20C~+60℃)NOTE:TheairflowdivertingactuatordoesnothavetobehousedwithinthecontrolledenvironmentcontainerC.1.2Themeansofdivertingairflowshallopenandclosetheairadmittancevalve(15土2)timesperminuteandresultinthespecifiedpressure/timefunctionshowninfigureC.2.29 CJ202-20043.5,11-14.6,Pat士0.2,,>0.51士0.2,,>0.5,协钊0-门︵侧山︶之知哭拿目、-230-250力，”忍八FigureC.2Endurancetestpressure/timecurveC.1.3ProcedureWhensuppliedwithaninsulatingcap,thecapshallbeinstalledontheairadmittancevalve.Onlyonesampletobetestedfrom8samples.a)Theairadmittancevalveandvalveandtestapparatusshallbeplaced,andoperated,inanenvi-ronmentwheretheambientairismaintainedat(20士5)"Cforaperiodof16h士5min;以c)Uponcompletionofthistest,conducttheairtightnesstestagain(seeannexB);Theairadmittancevalveandtestapparatusshallbeplaced,andoperated,inanenvironmentwheretheambientairismaintainedat(60士2)0Cforaperiodof8h士5min;d)Uponcompletionofthistest,conducttheairtightnesstestagain(seeannexB).C.1.4CriteriaTheairflowdivertingdeviceshallguarantyopenandcloseoftheairadmittancevalve(15士2)timesperminute(seeFigureC.1andC.2);AAVshallbesatisfiedannexB.3requirement.C.2Testforeffectivenessat一201C(seeFigureC.3)C.2.1ApparatusThetestapparatusshallconsistof:a)b)c)d)e)f)3anominally2.1mlongverticalstackofON110;anominal1.5mlongbranchofON110connectedat(1.3士0.01)mbelowthetopofthestack;anaveragingairflowmeterandelectricfanwithvariablespeed;plugforthefan"soutlet;"p"trapsealofON110atthebottomofstack;a"U"trapsealofON50above(0.5士0.1)mof"P"trapseallevel;标准分享网www.bzfxw.com免费下载 CI202-2004g)astaticpressuretappingwithamanometer;h)thebox,ofapproximateoveralldimensions0.8mx0.8mx0.8mwitharemovabletopfor门20士10)cm2airinlet,islinewith100mminsulationinside,suchthatthetopofstackis(0.4士0.01)mabovetheinsulation;i)twotemperaturesensorshavinganaccuracyof0.21C，onewith20mmoftheAAV.e.吕m日因01-AAV;2-Temperaturesensor;3-Temperaturesensor;4-Manometer;5-Airflowmeter;6-Fan;7-50mmTrap;8-110mmTrapFigureC.3TestapparatusforfrosttestC.2.2ProcedureThetestshallbecarriedoutononevalveasfollows:a)connecttheAAVtothetopendofthestack,usingappropriatemeanswheremecessary,inaccordancewiththemanufacture"sinstructions;b)fitthelidofairinletonthebox;31 CJ202-2004c)fillthetrapwithwaterwhenadjustthefantocreateapressureof(一250士10)Pa,attheme-nometer;d)e)f川i)g)j))k)recordthefirstairflowrate;switchoffthefanclosetheairinletandsealthefan"soutlet;reducethetemperatureinsidethebox;whenthetemperatureinsidetheboxhasreached(一20土3)"Crunwarmwaterat(40士3)0Cattherateof(10士1)litreperminuteintothe50mmtrapforaperiodof(5士0.5)min,allowingwatertoflowoutthelowertrap;afterwaitingfor(1土0.1)h,topupthetrapsifrequired;opentheairinletandunsealthefan"soutlet;adjustthefantocreateapressureof(一250士10)Paatthemanometerwithin30s;recordthesecondairflowrate.C.2.3CriteriaThesecondairflowrateshallnotbelessthan90%ofthefirstairflowrate,andthe50mmtrapcontainmorethan25mmwater.32标准分享网www.bzfxw.com免费下载 CJ202-2004AnnexD(Normative)OpeningcharacteristicandairflowcapacitytestD.1ApparatusThetestapparatus(seeFigureD.1)shallconsistofanappropriatediameterfittedwith:a)astackwithastaticpressuretappingconnectedtoamanometer;b)apressuremanometer;c)avariableairflowrateelectricfan(orequivalentmeanstoinduceandairflowdownthepipe);d)anaveragingairflowmetercapableofresolving0.1Us.Note;ameanofdetectingtheinstantofopeningoftheairadmittancevalve;forexampleeitherflowvisualizationbyusingventilationsmoketubesorbydetectingthepressurechange.1-AAV;2-Manometer;3-Averagingairflowmeter4--Fan;a一5xstackID;b一>10xStackIDc一2xstack旧.FigureD.1Airflowtestapparatus33 C】202-2004D.2ProcedureThetestshallbecarriedoutasfollows:a)connecttheairadmittancevalvetothetopofthepipe,usingappropriatemeanswherenecessa-ry.inaccordancewiththemanufacturer"sinstructions;b)Startthefan,tocreateanairflowdownthepipewhilerecordingthedevelopmentstaticairpressureandtheairflowrate;c)Increaseslowlythespeedofthefanuntiltheairadmittancevalveopens;thevalveisconsideredtobeopenatthemomentthestaticpressuresuddenlyrise;d)Recordthevalueofthepressureattheinstantofopening,thiswillbedesignatedtheopeningpressure;Note:theopeningpressureisthemaximumpressuremeasuredjustbeforethevalveopens,i.e.justbeforethepressurens日‘efg)))h)Usingthefan,theairflowrateshallbeadjustedsothatthemeasurespressureis(一250土10)Pa;Measure,andrecord,themeanvalueoftheairflowrateacrossthepipe.Thelowestmeanflowrateofthethreevalvestestedwillbedesignatedthedeterminedairflowcapacity;Reducetheairflowratesothatthemeasuredpressureis一150_,0oPa;Recordthemeanvalueofanyairflowrateacrossthepipeforthreevalves.D.3CriteriaC从曰a、，、，theopeningpressureshallbebetween0Paand一150Pa;尹thelowestofthethreedeterminedairflowcapacitiesshallbethedeterminedairflowcapacityofthevalve;飞Withanappliedsuctionof一150Pa,ameasurableflowrateshallbeproduced.34标准分享网www.bzfxw.com免费下载 C1202-2004AnnexE(informative)TestReportE.1Atestreportonairadmittancevalveperformanceshallincludethefollowinginformationifrelevant,1)nameandaddressoftestingbody(ifrelevant);2)identificationnumberofthereport;3)nameandaddressofthepersonrequisitioningthetest(thesponsor);4)methodofsamplingandothercircumstances(dateandpersonreaponsibleforthesampling);5)nameoridentificationoftestedobject;6)conditionofthetestspecimens,environmentaldataduringthetest(temperature,pressurestc.);7)identificationofthetestequipmentandinstrumentsused;8)anydeviationfromthetestmethods;9)testresults;10)inaccuracyoruncertaintyoftheresults;11)date,signatureandsealoftestingbody.'