泵beng管guan是shi蠕ru動dong泵beng的de重zhong要yao部bu件jian之zhi一yi，而er最zui終zhong用yong戶hu卻que經jing常chang錯cuo選xuan管guan材cai，致zhi使shi其qi不bu適shi於yu所suo需xu應ying用yong場chang合he。有you些xie用yong戶hu甚shen至zhi用yong普pu通tong管guan道dao來lai代dai替ti蠕ru動dong泵beng管guan
，以yi致zhi造zao成cheng災zai難nan性xing後hou果guo。隨sui著zhe市shi場chang上shang泵beng管guan種zhong類lei的de日ri益yi增zeng多duo，也ye使shi泵beng管guan挑tiao選xuan難nan度du增zeng大da。
    蠕動泵因其無汙染泵送特性及所需較少維護而日趨普及。然而
，當設計或購買蠕動泵係統時，不少工程師卻常會忽略一個重要的部件----蠕動泵的泵管。

一、化學相容性
    管材須與需泵送流體具有化學相容性
，才能具有良好的泵送性能及安全性能。隨著市場上管材的日益增多----有些蠕動泵機型的可用管材多達15種----所以用戶總能找到一種合適的管材與特定流體具有化學相容性。

    xuduobengguangongyingshanghuitigonghuaxuexiangrongxingbiao。dangongchengshimenxuzhuyi，yingshiyongzhuanweibengguanzhidingdehuaxuexiangrongxingbiao，erbushiweiputongguandaozhidingdehuaxuexiangrongxingbiao。yinweiputongguandaoyuhuaxuewuzhizhiyouyibanxingjiechu
，errudongbengbengguanshizaiyalitiaojianxiayuhuaxueliutijiechu

，suoyi
，putongguandaodehuaxuexiangrongxingjibieyurudongbengbengguandehuaxuexiangrongxingjibiebunengdengtong。yinci
，yingzhicankaobengguan，erbushiyibanguandaoyuxiangguanwuzhidehuaxuexiangrongxingjibie，fouzehuishibengguanshixiaohuoposunlieshenlou，yizhizaochengbengdesunhuaihuoweixianxingshigu。
最(zui)終(zhong)用(yong)戶(hu)在(zai)參(can)閱(yue)化(hua)學(xue)相(xiang)容(rong)性(xing)表(biao)時(shi)應(ying)將(jiang)溶(rong)液(ye)的(de)每(mei)一(yi)種(zhong)成(cheng)分(fen)


，而(er)不(bu)僅(jin)是(shi)主(zhu)要(yao)成(cheng)分(fen)拿(na)來(lai)與(yu)欲(yu)使(shi)用(yong)的(de)管(guan)材(cai)進(jin)行(xing)相(xiang)容(rong)性(xing)核(he)查(zha)。某(mou)些(xie)酸(suan)液(ye)或(huo)溶(rong)劑(ji)在(zai)與(yu)泵(beng)管(guan)接(jie)觸(chu)數(shu)小(xiao)時(shi)或(huo)數(shu)日(ri)後(hou)，哪(na)怕(pa)隻(zhi)是(shi)微(wei)量(liang)，也(ye)會(hui)對(dui)泵(beng)管(guan)造(zao)成(cheng)足(zu)夠(gou)的(de)破(po)壞(huai)。最(zui)終(zhong)用(yong)戶(hu)應(ying)核(he)查(zha)溶(rong)液(ye)中(zhong)的(de)每(mei)一(yi)種(zhong)化(hua)學(xue)物(wu)質(zhi)
，以(yi)確(que)保(bao)其(qi)都(dou)能(neng)與(yu)所(suo)選(xuan)擇(ze)的(de)泵(beng)管(guan)相(xiang)容(rong)。
    另請牢記：泵(beng)管(guan)的(de)抗(kang)化(hua)學(xue)能(neng)力(li)隨(sui)著(zhe)溫(wen)度(du)增(zeng)高(gao)而(er)降(jiang)低(di)。有(you)些(xie)化(hua)學(xue)物(wu)質(zhi)雖(sui)然(ran)在(zai)室(shi)溫(wen)下(xia)對(dui)泵(beng)管(guan)不(bu)構(gou)成(cheng)影(ying)響(xiang)，但(dan)當(dang)溫(wen)度(du)升(sheng)高(gao)到(dao)一(yi)定(ding)程(cheng)度(du)時(shi)

，就(jiu)會(hui)對(dui)泵(beng)管(guan)造(zao)成(cheng)損(sun)害(hai)。在(zai)化(hua)學(xue)相(xiang)容(rong)性(xing)表(biao)中(zhong)一(yi)定(ding)要(yao)注(zhu)明(ming)特(te)定(ding)的(de)環(huan)境(jing)條(tiao)件(jian)限(xian)定(ding)，特(te)別(bie)是(shi)溫(wen)度(du)限(xian)定(ding)
，才(cai)可(ke)用(yong)來(lai)確(que)定(ding)化(hua)學(xue)相(xiang)容(rong)性(xing)。
    ruguomouyihuaxuewuzhiweibeilieruhuaxuexiangrongxingbiaozhong
，huoruguomougongchangdeyunxinghuanjingtiaojianyubiaozhongguidingdetiaojianchabietaida，kecaiyongjinpaoshiyanlaihuodegengkekaodexinxi。zaiquedinghuaxuejianrongxingshi，ruomeiyouqitaxinxikecankao
，zekecaiyongcifa。
浸泡試驗步驟如下：取一小段泵管
，對其稱重量、測直徑和長度。然後將泵管放入一個裝有相關化學物質的封閉容器中浸泡48小xiao時shi。將jiang此ci管guan取qu出chu洗xi淨jing晾liang幹gan，稱cheng重zhong量liang和he測ce尺chi寸cun

，記ji錄lu下xia前qian後hou兩liang次ci測ce量liang的de變bian化hua量liang。還hai應ying檢jian查zha泵beng管guan是shi否fou出chu現xian軟ruan化hua或huo脆cui化hua跡ji象xiang，這zhe類lei跡ji象xiang表biao明ming化hua學xue物wu質zhi已yi對dui泵beng管guan構gou成cheng侵qin害hai。預yu選xuan出chu一yi種zhong或huo數shu種zhong管guan材cai後hou
，即ji可ke進jin行xing泵beng送song試shi驗yan。應ying將jiang每mei種zhong候hou選xuan泵beng管guan試shi樣yang放fang入ru工gong廠chang實shi際ji環huan境jing條tiao件jian下xia進jin行xing試shi運yun行xing
，並bing密mi切qie觀guan察cha測ce試shi結jie果guo。如ru果guo泵beng管guan在zai試shi運yun行xing後hou未wei出chu現xian退tui色se、腫脹、裂紋、喪失流動性、或其它惡化跡象
，則證明其與該流體相容。
    qingjizhu
，weitiaoxuanheshideguancai
，bulunshizhayuexiangrongxingbiao
，haishizuowulishiyan，haishiliangzhongfangshibingyong，zuizhongzerendouyingyouzuizhongyonghuzixingchengdan。xizhidefenxiheceshicainengquebaozhengquedeceshijieguo
，congerbimianbengdesunhuaijiquebaorenshen、財產安全。
不同管材與溶液之間
，化學相容性相差很大。但也有一些材質對大多數化學物質都有超強的抵抗能力。例如

，Viton氟橡膠泵管可抵抗多種無機化學物質
，甚至一些有機化學物質。又如，聚四氟乙烯（PTFE）bengguanjihukeyusuoyouhuaxuewuzhixiangrong。danjusifuyixibengguanshiyizhonggangxingguandao
，xucaiyongyizhongzhuanyongbengtou。zaixubengsongduozhongfushixinghuaxuewuzhidechanghezhong
，nengkangduozhonghuaxuewuzhideguancaiyinggaishizuijiaxuanze。

二
、壓力 
    高壓泵管的出現使得蠕動泵的應用範圍擴展至前所未有的應用領域，包括過濾。
    一個流體輸送係統的壓力源可以有所不同。當推動流體穿過一個過濾器、或推動流體通過一個流量儀或閥門、或huo泵beng送song流liu體ti進jin入ru一yi個ge加jia壓ya反fan應ying容rong器qi時shi，就jiu會hui產chan生sheng背bei壓ya。用yong戶hu在zai選xuan擇ze管guan材cai前qian
，應ying首shou先xian確que信xin已yi經jing弄nong清qing了le係xi統tong中zhong所suo有you的de壓ya力li源yuan
，並bing已yi獲huo得de係xi統tong總zong壓ya力li的de實shi測ce值zhi。用yong戶hu在zai為wei蠕ru動dong泵beng挑tiao選xuan泵beng管guan時shi，應ying確que保bao係xi統tong中zhong的de壓ya力li不bu要yao超chao過guo泵beng管guan的de推tui薦jian工gong作zuo壓ya力li。如ru果guo壓ya力li過guo高gao，泵beng管guan就jiu會hui鼓gu脹zhang，與yu泵beng頭tou配pei合he不bu良liang
，從cong而er導dao致zhi過guo快kuai磨mo損sun和he失shi效xiao。係xi統tong壓ya力li大da大da超chao過guo泵beng管guan的de承cheng受shou能neng力li時shi，甚shen至zhi會hui使shi泵beng管guan爆bao裂lie，噴pen出chu流liu體ti，危wei及ji安an全quan。選xuan定ding一yi種zhong管guan材cai後hou
，使shi用yong時shi應ying確que保bao將jiang壓ya力li維wei持chi在zai製zhi造zao廠chang家jia推tui薦jian的de壓ya力li範fan圍wei之zhi內nei。如ru果guo該gai係xi統tong超chao過guo最zui大da工gong作zuo壓ya力li，可ke安an裝zhuang一yi種zhong簡jian單dan的de壓ya力li緩huan釋shi閥fa或huo壓ya力li開kai關guan，以yi防fang過guo量liang壓ya力li的de蓄xu積ji。壓ya力li緩huan釋shi閥fa的de作zuo用yong是shi：當dang係xi統tong壓ya力li超chao過guo設she定ding值zhi時shi
，便bian向xiang大da氣qi中zhong排pai氣qi，使shi係xi統tong壓ya力li降jiang到dao安an全quan水shui平ping。也ye可ke使shi用yong一yi種zhong複fu雜za一yi些xie的de壓ya力li開kai關guan，當dang壓ya力li值zhi超chao過guo設she定ding值zhi時shi
，其qi會hui通tong過guo一yi個ge繼ji電dian器qi來lai關guan閉bi設she備bei或huo鳴ming響xiang報bao警jing裝zhuang置zhi。當dang係xi統tong壓ya力li超chao過guo安an全quan線xian時shi，上shang述shu兩liang種zhong方fang式shi均jun有you利li於yu安an全quan。

三、溫度 
    泵管的工作溫度範圍是另一個需考慮的重要因素。有些管材如矽橡膠具有較寬溫度承受範圍，對高溫、低溫過程均適宜
；而有些管材如Tygon¯ 及 C-Flex¯則(ze)隻(zhi)適(shi)於(yu)某(mou)一(yi)較(jiao)小(xiao)的(de)溫(wen)度(du)範(fan)圍(wei)。最(zui)終(zhong)用(yong)戶(hu)在(zai)選(xuan)擇(ze)管(guan)材(cai)前(qian)，應(ying)先(xian)弄(nong)清(qing)係(xi)統(tong)中(zhong)的(de)最(zui)高(gao)溫(wen)度(du)和(he)最(zui)低(di)溫(wen)度(du)，然(ran)後(hou)確(que)保(bao)所(suo)選(xuan)泵(beng)管(guan)安(an)全(quan)工(gong)作(zuo)於(yu)此(ci)溫(wen)度(du)區(qu)間(jian)。 在需逐漸提高溫度的應用場合
，最終用戶應考慮溫度對泵管抗化學能力及承壓能力的影響。溫度增高時
，泵管的承壓能力會降低。

四
、尺寸 
    隨sui著zhe泵beng頭tou中zhong每mei一yi個ge輥gun子zi壓ya過guo泵beng管guan，蠕ru動dong泵beng便bian會hui泵beng送song一yi定ding量liang的de流liu體ti
，因yin此ci泵beng管guan的de尺chi寸cun直zhi接jie關guan係xi到dao泵beng送song流liu量liang，也ye就jiu是shi說shuo，對dui流liu體ti輸shu送song係xi統tong的de運yun行xing影ying響xiang很hen大da。泵beng管guan是shi設she計ji優you質zhi蠕ru動dong泵beng時shi需xu重zhong點dian考kao慮lv的de部bu分fen。需xu計ji算suan出chu泵beng管guan的de最zui佳jia尺chi寸cun或huo最zui佳jia尺chi寸cun範fan圍wei。這zhe裏li的de尺chi寸cun主zhu要yao指zhi泵beng管guan內nei徑jing和he璧bi厚hou。內nei徑jing決jue定ding轉zhuan子zi每mei轉zhuan一yi圈quan所suo泵beng送song流liu體ti的de量liang
，而er璧bi厚hou則ze決jue定ding每mei次ci碾nian壓ya後hou，泵beng管guan恢hui複fu原yuan始shi形xing狀zhuang的de能neng力li，這zhe一yi能neng力li在zai很hen大da程cheng度du上shang影ying響xiang著zhe泵beng管guan的de使shi用yong壽shou命ming。泵beng管guan尺chi寸cun相xiang對dui於yu泵beng頭tou尺chi寸cun太tai小xiao，泵beng頭tou就jiu不bu能neng卡ka牢lao泵beng管guan

，泵beng管guan就jiu會hui被bei拉la出chu泵beng頭tou；而(er)且(qie)泵(beng)管(guan)尺(chi)寸(cun)太(tai)小(xiao)
，泵(beng)頭(tou)中(zhong)的(de)輥(gun)子(zi)就(jiu)壓(ya)不(bu)住(zhu)泵(beng)管(guan)，就(jiu)會(hui)造(zao)成(cheng)泵(beng)送(song)流(liu)量(liang)不(bu)足(zu)以(yi)或(huo)完(wan)全(quan)失(shi)效(xiao)。而(er)如(ru)果(guo)泵(beng)管(guan)尺(chi)寸(cun)太(tai)大(da)
，多(duo)餘(yu)的(de)管(guan)材(cai)就(jiu)會(hui)在(zai)輥(gun)子(zi)與(yu)泵(beng)殼(ke)之(zhi)間(jian)或(huo)輥(gun)子(zi)與(yu)咬(yao)合(he)床(chuang)之(zhi)間(jian)產(chan)生(sheng)褶(zhe)皺(zhou)，導(dao)致(zhi)過(guo)快(kuai)磨(mo)損(sun)和(he)過(guo)早(zao)失(shi)效(xiao)。最(zui)終(zhong)用(yong)戶(hu)在(zai)選(xuan)擇(ze)泵(beng)管(guan)尺(chi)寸(cun)時(shi)，應(ying)遵(zun)從(cong)製(zhi)造(zao)廠(chang)家(jia)的(de)建(jian)議(yi)，以(yi)確(que)保(bao)係(xi)統(tong)功(gong)能(neng)發(fa)揮(hui)良(liang)好(hao)。在(zai)要(yao)求(qiu)較(jiao)高(gao)精(jing)確(que)性(xing)的(de)一(yi)些(xie)應(ying)用(yong)場(chang)合(he)（如化學劑量泵）
，泵beng管guan尺chi寸cun的de作zuo用yong就jiu更geng加jia突tu出chu。尺chi寸cun稍shao有you偏pian差cha就jiu會hui導dao致zhi流liu量liang或huo分fen配pei量liang偏pian差cha太tai大da而er不bu合he格ge。雖sui然ran有you些xie製zhi造zao廠chang家jia提ti供gong的de泵beng管guan尺chi寸cun與yu推tui薦jian尺chi寸cun很hen“接近”
，“看上去一樣”，但往往還是有差距的。所以為了使泵係統達到最佳性能和工作精度，用戶應采用與廠家推薦尺寸完全一致的泵管尺寸。

五、公差 
    gongchajibengguanchicundeyunxuwucha。gongchayuexiao
，bengguandexingnengpianchajiuyuexiao，yizhixinghezhongfuxingjiuyuehao。gongchayueda，bengguandexingnengbianyuebuwending。youxiebengguandezhizaogongchajixiao，qichicunpianchazaijisuchengxingshijiushoudaoyangedekongzhi。zhizaogongchajiaoxiaodebengguansuishaoweiguiyixie，danbiqibengsongxingnengdetigaofudu，zhedianhuafeihaishizhidede。

六、泵管的平均壽命 
    蠕(ru)動(dong)泵(beng)所(suo)麵(mian)臨(lin)的(de)條(tiao)件(jian)較(jiao)為(wei)惡(e)劣(lie)，所(suo)以(yi)內(nei)在(zai)品(pin)質(zhi)較(jiao)優(you)的(de)管(guan)材(cai)，尤(you)其(qi)是(shi)回(hui)彈(dan)性(xing)能(neng)較(jiao)好(hao)的(de)管(guan)材(cai)才(cai)會(hui)有(you)較(jiao)長(chang)的(de)使(shi)用(yong)壽(shou)命(ming)。長(chang)遠(yuan)看(kan)，管(guan)材(cai)使(shi)用(yong)壽(shou)命(ming)越(yue)長(chang)，運(yun)行(xing)成(cheng)本(ben)越(yue)低(di)。泵(beng)管(guan)更(geng)換(huan)次(ci)數(shu)越(yue)少(shao)，維(wei)護(hu)成(cheng)本(ben)和(he)停(ting)機(ji)時(shi)間(jian)越(yue)少(shao)。泵(beng)管(guan)出(chu)現(xian)滲(shen)漏(lou)和(he)爆(bao)裂(lie)的(de)可(ke)能(neng)性(xing)也(ye)越(yue)少(shao)。總(zong)之(zhi)，泵(beng)管(guan)使(shi)用(yong)壽(shou)命(ming)越(yue)長(chang)，泵(beng)送(song)總(zong)成(cheng)本(ben)就(jiu)越(yue)低(di)。 泵管製造廠家應提供試驗數據來證明其所宣稱的泵管壽命。有些廠家在其手冊（如《Cole-Parmer儀器公司Masterflex泵資料大全》中zhong發fa布bu了le有you關guan信xin息xi。無wu論lun如ru何he，工gong程cheng師shi在zai設she計ji一yi個ge係xi統tong時shi，應ying對dui有you關guan管guan材cai的de平ping均jun壽shou命ming有you所suo了le解jie，這zhe樣yang才cai能neng幫bang助zhu最zui終zhong用yong戶hu製zhi定ding預yu防fang性xing維wei護hu計ji劃hua，以yi便bian在zai泵beng管guan失shi效xiao以yi前qian就jiu能neng將jiang其qi更geng換huan。有you豐feng富fu技ji術shu知zhi識shi的de泵beng管guan供gong應ying商shang可ke針zhen對dui特te定ding應ying用yong場chang合he為wei用yong戶hu提ti供gong有you用yong的de信xin息xi，以yi便bian選xuan出chu合he適shi的de泵beng管guan材cai料liao。

七、透明度 
    是(shi)否(fou)應(ying)采(cai)用(yong)透(tou)明(ming)管(guan)道(dao)，首(shou)先(xian)要(yao)看(kan)操(cao)作(zuo)員(yuan)是(shi)否(fou)需(xu)要(yao)隨(sui)時(shi)觀(guan)察(cha)管(guan)內(nei)流(liu)體(ti)的(de)狀(zhuang)況(kuang)，還(hai)要(yao)看(kan)流(liu)體(ti)是(shi)否(fou)對(dui)光(guang)敏(min)感(gan)。如(ru)果(guo)操(cao)作(zuo)員(yuan)需(xu)要(yao)隨(sui)時(shi)觀(guan)察(cha)管(guan)內(nei)流(liu)體(ti)

、氣泡、微粒
、汙染等情況，則應選用Tygon聚乙烯或矽橡膠等透明管材；而如果溶液不宜曝光
，則應選用不透明管材

八
、透氣度 
    對dui於yu一yi些xie對dui氣qi體ti敏min感gan的de流liu體ti

，如ru易yi受shou氧yang化hua的de流liu體ti
，或huo厭yan氧yang細xi胞bao培pei養yang液ye，用yong戶hu應ying考kao慮lv管guan道dao的de透tou氣qi度du因yin素su。總zong的de來lai說shuo，矽gui膠jiao管guan的de透tou氣qi度du最zui高gao。所suo以yi對dui於yu不bu宜yi於yu接jie觸chu氣qi體ti的de流liu體ti，應ying選xuan用yong透tou氣qi度du較jiao低di的de管guan材cai。

九、法規許可 
    duiyuzhiyaoxingye，faguirenzhengzhiguanzhongyao。zaigaixingye，meiyijianyuzuizhongchanpinyoujiechudewupindoubixufuhezhuanmendebiaozhunhezhunze。weici，xuduobengguancailiaoshiyangeanzhaofaguiyaoqiuyanzhichulaide。zhexiefaguibaokuomeiguoyaodian（USP）
、歐洲藥典（EP）、美國食品及藥物管理局(FDA)、美國農業部(USDA)
、及美國國家衛生基金會(NSF)。dangran，jinxuanchengmoumoucailiaofuhemoumoufaguihaishibugoude。bengguanzhizaochangjiayinggenjuyonghuyaoqiuxiangyonghutigongzhengminggaiguandaofuhegaifaguidezhengshu。zheyangyonghujiunengtigongbiyaodezhengshu，zhengmingbengxitongfuhebiyaodefaguixuke。

十、成本 
    chengbenjihushizhidingmeiyigexiangmufanganshidouxuyaokaolvdeyinsu。zhengruxuanzeqitabujianshiyiyang，yonghuyingduibeixuanbengguandezhenggeshiyongchengbenjinxingpinggu。liru，mouzhongbengguanmeiyingchijiagewei2美元，每500小時需更換一次；而另一種泵管每英尺價格為1美元，每100小時需更換一次；則前者的性價比比後者更高。低質泵管突然破裂會導致貴重流體流失或導致泵的損壞
，造成高成本的停機時間及大量維修

、shenzhigenghuanzhenggebeng。suoyi，zuibianyidebengguanbuyidingshizuijingjidexuanze。yaozaipinzhongfanduodebengguanshichangshangtiaoxuanchuyikuanlixiangdebengguanzakanqilaibudakeneng。raner，zhiyaozaixiyanjiuxitongyaoqiu、參比有關的技術指標、與具有應用知識和經驗的泵管製造商或供應商保持密切溝通，就能選定最適於相關泵係統的泵管。