旋启式(shi)(shi)和升降式(shi)(shi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣金属(shu)密(mi)(mi)(mi)(mi)封(feng)面。阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)体和阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)盖(gai)(gai)连接形式(shi)(shi)：Class150~Class900采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)栓(shuan)接阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)盖(gai)(gai)；Class1500~Class2500采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)自压(ya)密(mi)(mi)(mi)(mi)封(feng)式(shi)(shi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)盖(gai)(gai)。阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)盖(gai)(gai)垫(dian)片(pian)(pian)(pian)形式(shi)(shi)：Class150~Class300止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)不(bu)锈钢(gang)石墨缠绕(rao)垫(dian)片(pian)(pian)(pian)；Class600止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)可(ke)用(yong)(yong)(yong)(yong)(yong)(yong)不(bu)锈钢(gang)石墨缠绕(rao)垫(dian)片(pian)(pian)(pian)也可(ke)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)金属(shu)环(huan)(huan)垫(dian)片(pian)(pian)(pian)；Class900止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)可(ke)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)金属(shu)环(huan)(huan)垫(dian)片(pian)(pian)(pian)，Class1500~Class2500止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)自压(ya)密(mi)(mi)(mi)(mi)封(feng)金属(shu)环(huan)(huan)。阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)：碳钢(gang)止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)通常采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)锻钢(gang)材料，阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)密(mi)(mi)(mi)(mi)封(feng)面可(ke)根据客户(hu)要求喷焊硬(ying)质(zhi)合(he)金，NPS小(xiao)于等于10的(de)(de)(de)(de)(de)(de)止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)分离式(shi)(shi)螺纹旋入(ru)(ru)式(shi)(shi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)，如果(guo)(guo)用(yong)(yong)(yong)(yong)(yong)(yong)户(hu)需要焊阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)结构(gou)(gou)也可(ke)提(ti)供；NPS大于等于12截止(zhi)(zhi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)焊阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)结构(gou)(gou)；不(bu)锈钢(gang)止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)一(yi)般采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)整体式(shi)(shi)或(huo)者在(zai)本(ben)体上(shang)焊硬(ying)质(zhi)合(he)金后(hou)直接加工(gong)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)。如果(guo)(guo)用(yong)(yong)(yong)(yong)(yong)(yong)户(hu)有需求，不(bu)锈钢(gang)止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)也可(ke)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)分离式(shi)(shi)螺纹旋入(ru)(ru)式(shi)(shi)和焊接阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)结构(gou)(gou)。铸钢(gang)旋启式(shi)(shi)止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)结构(gou)(gou)特征：大口径的(de)(de)(de)(de)(de)(de)止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)设计(ji)有吊(diao)环(huan)(huan)，方便(bian)起吊(diao)。栓(shuan)接阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)盖(gai)(gai)，中法(fa)兰垫(dian)片(pian)(pian)(pian)的(de)(de)(de)(de)(de)(de)型式(shi)(shi)可(ke)根据压(ya)力等级的(de)(de)(de)(de)(de)(de)不(bu)同进(jin)行选择；CLASS600的(de)(de)(de)(de)(de)(de)止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)可(ke)采(cai)(cai)(cai)用(yong)(yong)(yong)(yong)(yong)(yong)压(ya)力自紧密(mi)(mi)(mi)(mi)封(feng)结构(gou)(gou)。阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣限位装置，防止(zhi)(zhi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣打开位置过(guo)高而无法(fa)关(guan)闭(bi)。实心销轴(zhou)安(an)装精确，强(qiang)度(du)高，保证了阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)门的(de)(de)(de)(de)(de)(de)使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)性能(neng)和使(shi)用(yong)(yong)(yong)(yong)(yong)(yong)寿命。摇(yao)杆具(ju)有足够(gou)的(de)(de)(de)(de)(de)(de)强(qiang)度(du)，关(guan)闭(bi)时有足够(gou)的(de)(de)(de)(de)(de)(de)自由度(du)以利于阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣关(guan)闭(bi)。阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣具(ju)有足够(gou)的(de)(de)(de)(de)(de)(de)强(qiang)度(du)和刚度(du)。止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)设备，就选大科阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)门集团有限公(gong)司(si)，用(yong)(yong)(yong)(yong)(yong)(yong)户(hu)的(de)(de)(de)(de)(de)(de)信(xin)赖之选，欢(huan)迎您的(de)(de)(de)(de)(de)(de)来电(dian)哦！化工(gong)部止(zhi)(zhi)回(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)批(pi)发

直通(tong)式(shi)(shi)(shi)(shi)(shi)蝶式(shi)(shi)(shi)(shi)(shi)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)介(jie)质(zhi)进出口通(tong)道(dao)(dao)方(fang)向(xiang)(xiang)与阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)座通(tong)道(dao)(dao)方(fang)向(xiang)(xiang)垂直；立式(shi)(shi)(shi)(shi)(shi)升(sheng)(sheng)降式(shi)(shi)(shi)(shi)(shi)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，其介(jie)质(zhi)进出口通(tong)道(dao)(dao)方(fang)向(xiang)(xiang)与阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)座通(tong)道(dao)(dao)方(fang)向(xiang)(xiang)相(xiang)同，其流(liu)动阻力(li)(li)较(jiao)直通(tong)式(shi)(shi)(shi)(shi)(shi)小(xiao)。衬(chen)氟(fu)(fu)(fu)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)：阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣围(wei)绕(rao)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)座内(nei)的(de)(de)(de)销轴旋转的(de)(de)(de)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)。碟式(shi)(shi)(shi)(shi)(shi)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)结构简(jian)单，只能(neng)安(an)装(zhuang)在(zai)水平管(guan)道(dao)(dao)上，密封性(xing)(xing)较(jiao)好。衬(chen)氟(fu)(fu)(fu)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)：阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣沿着阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)体(ti)中心线(xian)滑(hua)动的(de)(de)(de)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)门(men)。管(guan)道(dao)(dao)式(shi)(shi)(shi)(shi)(shi)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)是(shi)(shi)新出现(xian)的(de)(de)(de)一(yi)种阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)门(men)，它(ta)的(de)(de)(de)体(ti)积小(xiao)，重量较(jiao)轻，加工(gong)工(gong)艺(yi)性(xing)(xing)好，是(shi)(shi)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)发展方(fang)向(xiang)(xiang)之一(yi)。但流(liu)体(ti)阻力(li)(li)系数比旋启式(shi)(shi)(shi)(shi)(shi)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)略大。压(ya)紧(jin)式(shi)(shi)(shi)(shi)(shi)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)：这种阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)门(men)是(shi)(shi)做为锅(guo)炉(lu)给水和(he)蒸汽切断用阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，它(ta)具有(you)(you)(you)升(sheng)(sheng)降式(shi)(shi)(shi)(shi)(shi)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)和(he)截止(zhi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)或角阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)综合机能(neng)。此外，还有(you)(you)(you)—些不(bu)适用于泵出口安(an)装(zhuang)的(de)(de)(de)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，如底阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)、弹簧式(shi)(shi)(shi)(shi)(shi)，Y型等止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)。衬(chen)氟(fu)(fu)(fu)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)衬(chen)氟(fu)(fu)(fu)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)主(zhu)要衬(chen)里：聚(ju)全氟(fu)(fu)(fu)乙(yi)烯FEP(F46)适用介(jie)质(zhi)：任(ren)何有(you)(you)(you)机溶(rong)剂或试剂，稀或浓无机酸，碱，酮，芳烃，氯化(hua)烃等。使用温(wen)度(du)：-85~150特点：力(li)(li)学，电(dian)性(xing)(xing)能(neng)和(he)化(hua)学稳(wen)定(ding)性(xing)(xing)基本与F4相(xiang)同，但突出优点是(shi)(shi)动击韧(ren)性(xing)(xing)高，有(you)(you)(you)极好的(de)(de)(de)耐候性(xing)(xing)和(he)辐射性(xing)(xing)。聚(ju)三氟(fu)(fu)(fu)乙(yi)烯PCTEF(F3)适用介(jie)质(zhi)：各种有(you)(you)(you)机溶(rong)剂，无机腐(fu)蚀液(氧化(hua)性(xing)(xing)酸类)使用温(wen)度(du)：-195~120特点：耐热性(xing)(xing)，电(dian)性(xing)(xing)能(neng)和(he)化(hua)学稳(wen)定(ding)性(xing)(xing)只有(you)(you)(you)次(ci)于F4。浙江(jiang)升(sheng)(sheng)降式(shi)(shi)(shi)(shi)(shi)止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)哪(na)里好大科阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)门(men)集团有(you)(you)(you)限公司(si)致力(li)(li)于提(ti)供止(zhi)回(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)设(she)备，有(you)(you)(you)需(xu)要可以(yi)联系我司(si)哦！

消声(sheng)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)分类：止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)根据其(qi)结(jie)构和(he)(he)安装(zhuang)方(fang)式(shi)(shi)可(ke)分：1、旋(xuan)(xuan)启式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)：阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)(ban)呈圆盘状，绕阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)(zuo)通(tong)(tong)道的(de)转(zhuan)轴(zhou)作(zuo)旋(xuan)(xuan)转(zhuan)运动(dong)(dong)，因阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)内(nei)通(tong)(tong)道成流(liu)(liu)线形(xing)，流(liu)(liu)动(dong)(dong)阻(zu)力比升(sheng)(sheng)蝶式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)小，适用(yong)(yong)于(yu)低(di)流(liu)(liu)速和(he)(he)流(liu)(liu)动(dong)(dong)不(bu)(bu)常变化的(de)大(da)口(kou)径场(chang)合，但(dan)不(bu)(bu)宜用(yong)(yong)于(yu)脉动(dong)(dong)流(liu)(liu)，其(qi)密封性能不(bu)(bu)及(ji)升(sheng)(sheng)降式(shi)(shi)。蝶式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)分单瓣(ban)(ban)(ban)(ban)(ban)(ban)式(shi)(shi)、双瓣(ban)(ban)(ban)(ban)(ban)(ban)式(shi)(shi)和(he)(he)多(duo)瓣(ban)(ban)(ban)(ban)(ban)(ban)式(shi)(shi)三种(zhong)，这三种(zhong)形(xing)式(shi)(shi)主要(yao)按阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)门口(kou)径来(lai)分，目的(de)是为了防止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)介质(zhi)(zhi)(zhi)停止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)动(dong)(dong)或(huo)倒流(liu)(liu)时，减弱(ruo)水力冲击。2、升(sheng)(sheng)降止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)：阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)(ban)沿(yan)着(zhe)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)体(ti)(ti)垂(chui)直中心线滑(hua)动(dong)(dong)的(de)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)，消声(sheng)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)只能安装(zhuang)在水平管道上(shang)，在高压小口(kou)径止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)上(shang)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)(ban)可(ke)采(cai)用(yong)(yong)圆球(qiu)。消声(sheng)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)体(ti)(ti)形(xing)状与(yu)截止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)一样（可(ke)与(yu)截止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)通(tong)(tong)用(yong)(yong)），因此它(ta)的(de)流(liu)(liu)体(ti)(ti)阻(zu)力系(xi)数(shu)较大(da)。其(qi)结(jie)构与(yu)截止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)相(xiang)似，阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)体(ti)(ti)和(he)(he)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)(ban)与(yu)截止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)相(xiang)同。阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)(ban)上(shang)部和(he)(he)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)盖下部加工(gong)有导(dao)(dao)向套简(jian)，阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)(ban)导(dao)(dao)向简(jian)可(ke)在阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)盏导(dao)(dao)向简(jian)内(nei)自由升(sheng)(sheng)降，当(dang)介质(zhi)(zhi)(zhi)顺流(liu)(liu)时，阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)(ban)靠介质(zhi)(zhi)(zhi)推力开启，当(dang)介质(zhi)(zhi)(zhi)停流(liu)(liu)时，阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)(ban)靠自垂(chui)降落在阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)(zuo)上(shang)，起阻(zu)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)介质(zhi)(zhi)(zhi)逆流(liu)(liu)作(zuo)用(yong)(yong)。直通(tong)(tong)式(shi)(shi)蝶式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)介质(zhi)(zhi)(zhi)进(jin)(jin)出口(kou)通(tong)(tong)道方(fang)向与(yu)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)(zuo)通(tong)(tong)道方(fang)向垂(chui)直；立(li)式(shi)(shi)升(sheng)(sheng)降式(shi)(shi)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)，其(qi)介质(zhi)(zhi)(zhi)进(jin)(jin)出口(kou)通(tong)(tong)道方(fang)向与(yu)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)(zuo)通(tong)(tong)道方(fang)向相(xiang)同，其(qi)流(liu)(liu)动(dong)(dong)阻(zu)力较直通(tong)(tong)式(shi)(shi)小。3、斜(xie)盘止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)：阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)(ban)围绕阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)座(zuo)(zuo)(zuo)内(nei)的(de)销(xiao)轴(zhou)旋(xuan)(xuan)转(zhuan)的(de)止(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)回(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)。

止回阀是什么阀门？

止(zhi)回阀是指启(qi)闭(bi)(bi)件为圆(yuan)形(xing)阀瓣并靠自身(shen)重量及介(jie)(jie)质压(ya)力产生动(dong)作来阻断(duan)介(jie)(jie)质倒流(liu)的(de)(de)一种(zhong)阀门(men)。它(ta)是依着介(jie)(jie)质本身(shen)流(liu)动(dong)打开的(de)(de)，依着介(jie)(jie)质本身(shen)不(bu)动(dong)而关闭(bi)(bi)，所(suo)以它(ta)也是一种(zhong)自动(dong)阀。

单(dan)向(xiang)(xiang)阀是止(zhi)回阀当中的一种(zhong)类型，单(dan)向(xiang)(xiang)阀是止(zhi)回阀，但止(zhi)回阀不一定是单(dan)向(xiang)(xiang)阀。

止回阀(fa)型号字母表示(shi)什么(me)？

以(yi)h44h上回阀(fa)为(wei)例1、首先(xian)1个符(fu)(fu)号(hao)(hao)“H”表(biao)示(shi)(shi)止回阀(fa)2、第(di)二(er)个符(fu)(fu)号(hao)(hao)“4”表(biao)示(shi)(shi)连接方式(shi)(shi)为(wei)法兰连接3、第(di)三个符(fu)(fu)号(hao)(hao)“4”表(biao)示(shi)(shi)采用的(de)是旋启式(shi)(shi)单瓣结(jie)构4、第(di)四个符(fu)(fu)号(hao)(hao)“H”表(biao)示(shi)(shi)密封材质(zhi)为(wei)不锈钢大科(ke)阀(fa)门(men)集(ji)团有(you)限公司(si)(si)是一家专业(ye)提供止回阀(fa)设备(bei)的(de)公司(si)(si)，有(you)想法的(de)可以(yi)来电咨(zi)询！

选(xuan)用(yong)安装(zhuang)止回(hui)阀(fa)(fa)(fa)工(gong)艺(yi)设(she)(she)计(ji)：（1）主体毛坯的(de)(de)(de)(de)(de)(de)质(zhi)量控制(zhi)本(ben)阀(fa)(fa)(fa)门(men)的(de)(de)(de)(de)(de)(de)所(suo)有零件(jian)(jian)均为(wei)锻(duan)件(jian)(jian)，锻(duan)造时严格按照(zhao)锻(duan)造工(gong)艺(yi)规(gui)程和(he)工(gong)序(xu)卡进(jin)(jin)行，严格控制(zhi)始锻(duan)温度、终锻(duan)温度、变形(xing)程度和(he)变形(xing)速度，按工(gong)艺(yi)规(gui)程规(gui)定(ding)的(de)(de)(de)(de)(de)(de)冷却(que)方(fang)法进(jin)(jin)行冷却(que)。对(dui)锻(duan)成(cheng)品进(jin)(jin)行化学成(cheng)分分析、力学性能试(shi)(shi)(shi)验(yan)(yan)、晶间腐蚀试(shi)(shi)(shi)验(yan)(yan)、金相组(zu)织分析，经分析、试(shi)(shi)(shi)验(yan)(yan)和(he)测定(ding)，均符合相应(ying)标(biao)(biao)准。锻(duan)件(jian)(jian)的(de)(de)(de)(de)(de)(de)质(zhi)量通过超声(sheng)波检验(yan)(yan)和(he)液(ye)体渗透检验(yan)(yan)来保证，按照(zhao)RCC－M要(yao)求对(dui)锻(duan)件(jian)(jian)进(jin)(jin)行100%的(de)(de)(de)(de)(de)(de)超声(sheng)波探伤(shang)并(bing)(bing)评定(ding)，并(bing)(bing)对(dui)锻(duan)件(jian)(jian)的(de)(de)(de)(de)(de)(de)全部表(biao)面(mian)进(jin)(jin)行液(ye)体渗透检验(yan)(yan)和(he)评定(ding)。（2）焊(han)(han)(han)(han)接(jie)为(wei)了(le)提高堆焊(han)(han)(han)(han)质(zhi)量，对(dui)阀(fa)(fa)(fa)瓣(ban)和(he)阀(fa)(fa)(fa)座的(de)(de)(de)(de)(de)(de)密封面(mian)堆焊(han)(han)(han)(han)采用(yong)了(le)等(deng)离子氩弧焊(han)(han)(han)(han)工(gong)艺(yi)。同时，为(wei)确保焊(han)(han)(han)(han)接(jie)质(zhi)量，对(dui)生产中所(suo)用(yong)焊(han)(han)(han)(han)接(jie)工(gong)艺(yi)重新进(jin)(jin)行了(le)工(gong)艺(yi)评定(ding)。（3）装(zhuang)配(pei)试(shi)(shi)(shi)验(yan)(yan)质(zhi)量产品不只有需要(yao)高精(jing)度的(de)(de)(de)(de)(de)(de)零部件(jian)(jian)，更关键的(de)(de)(de)(de)(de)(de)是如何将(jiang)这些(xie)高精(jing)度的(de)(de)(de)(de)(de)(de)零部件(jian)(jian)组(zu)装(zhuang)成(cheng)高性能的(de)(de)(de)(de)(de)(de)产品。中核(he)苏(su)阀(fa)(fa)(fa)组(zu)织了(le)一支经验(yan)(yan)丰富、技术(shu)过硬的(de)(de)(de)(de)(de)(de)、由多名(ming)技师和(he)高级技工(gong)组(zu)成(cheng)的(de)(de)(de)(de)(de)(de)装(zhuang)配(pei)、调试(shi)(shi)(shi)小组(zu)，负(fu)责阀(fa)(fa)(fa)门(men)的(de)(de)(de)(de)(de)(de)装(zhuang)配(pei)、调试(shi)(shi)(shi)、试(shi)(shi)(shi)验(yan)(yan)，制(zhi)订了(le)零部件(jian)(jian)的(de)(de)(de)(de)(de)(de)清(qing)洗工(gong)艺(yi)、装(zhuang)配(pei)工(gong)艺(yi)，在装(zhuang)配(pei)和(he)调试(shi)(shi)(shi)中严格把(ba)关，精(jing)益求精(jing)，确保阀(fa)(fa)(fa)门(men)的(de)(de)(de)(de)(de)(de)装(zhuang)配(pei)、调试(shi)(shi)(shi)成(cheng)功，并(bing)(bing)进(jin)(jin)行了(le)各(ge)(ge)类性能试(shi)(shi)(shi)验(yan)(yan)，各(ge)(ge)项指标(biao)(biao)均符合设(she)(she)计(ji)任务书的(de)(de)(de)(de)(de)(de)要(yao)求。。止回(hui)阀(fa)(fa)(fa)设(she)(she)备，就选(xuan)大科阀(fa)(fa)(fa)门(men)集团有限(xian)公司(si)，让您满(man)意(yi)，欢迎您的(de)(de)(de)(de)(de)(de)来电哦！山西焊(han)(han)(han)(han)接(jie)止回(hui)阀(fa)(fa)(fa)费用(yong)

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流(liu)(liu)(liu)(liu)(liu)(liu)(liu)体(ti)压力使阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)从阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)座密封面上(shang)抬起，介(jie)质回(hui)(hui)(hui)(hui)(hui)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)导(dao)致阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)回(hui)(hui)(hui)(hui)(hui)落到阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)座上(shang)，并(bing)切断流(liu)(liu)(liu)(liu)(liu)(liu)(liu)动(dong)。根据(ju)使用(yong)(yong)条件，阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)可(ke)以是全金属结构(gou)，也可(ke)以是在(zai)(zai)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)架上(shang)镶嵌橡(xiang)胶垫或(huo)橡(xiang)胶环的(de)(de)(de)形式(shi)(shi)(shi)(shi)。像截(jie)止(zhi)(zhi)(zhi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)一样，流(liu)(liu)(liu)(liu)(liu)(liu)(liu)体(ti)通(tong)(tong)过升(sheng)降(jiang)(jiang)式(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)通(tong)(tong)道(dao)(dao)也是狭(xia)窄(zhai)的(de)(de)(de)，因(yin)此(ci)(ci)通(tong)(tong)过升(sheng)降(jiang)(jiang)式(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)压力降(jiang)(jiang)比旋启式(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)大些(xie)，而且旋启式(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)量(liang)受到的(de)(de)(de)限制(zhi)很(hen)少。衬氟止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)结构(gou)分(fen)类：1、衬氟止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)呈圆(yuan)(yuan)盘状，绕阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)座通(tong)(tong)道(dao)(dao)的(de)(de)(de)转(zhuan)轴(zhou)作(zuo)旋转(zhuan)运(yun)动(dong)，因(yin)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)内(nei)通(tong)(tong)道(dao)(dao)成流(liu)(liu)(liu)(liu)(liu)(liu)(liu)线型，流(liu)(liu)(liu)(liu)(liu)(liu)(liu)动(dong)阻力比升(sheng)蝶式(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)小(xiao)，适(shi)用(yong)(yong)于(yu)(yu)低流(liu)(liu)(liu)(liu)(liu)(liu)(liu)速(su)和流(liu)(liu)(liu)(liu)(liu)(liu)(liu)动(dong)不(bu)常变化的(de)(de)(de)大口径(jing)(jing)场合(he)，但不(bu)宜用(yong)(yong)于(yu)(yu)脉动(dong)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)，其(qi)密封性能不(bu)及升(sheng)降(jiang)(jiang)式(shi)(shi)(shi)(shi)。蝶式(shi)(shi)(shi)(shi)止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)分(fen)单(dan)瓣(ban)(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)、双瓣(ban)(ban)(ban)(ban)(ban)式(shi)(shi)(shi)(shi)和多半式(shi)(shi)(shi)(shi)三种(zhong)，这三种(zhong)形式(shi)(shi)(shi)(shi)主(zhu)要按阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)门(men)口径(jing)(jing)来分(fen)，目的(de)(de)(de)是为了防止(zhi)(zhi)(zhi)介(jie)质停(ting)止(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)动(dong)或(huo)倒流(liu)(liu)(liu)(liu)(liu)(liu)(liu)时，减弱水力冲(chong)击。2、衬氟止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)：阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)沿(yan)着阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)体(ti)垂直中(zhong)心线滑动(dong)的(de)(de)(de)止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)，消声(sheng)止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)只能安装(zhuang)在(zai)(zai)水平管道(dao)(dao)上(shang)优好安装(zhuang)在(zai)(zai)垂直管道(dao)(dao)上(shang)，在(zai)(zai)高压小(xiao)口径(jing)(jing)止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)上(shang)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)可(ke)采用(yong)(yong)圆(yuan)(yuan)球。消声(sheng)止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)体(ti)形状与(yu)(yu)截(jie)止(zhi)(zhi)(zhi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)一样（可(ke)与(yu)(yu)截(jie)止(zhi)(zhi)(zhi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)通(tong)(tong)用(yong)(yong)），因(yin)此(ci)(ci)它的(de)(de)(de)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)体(ti)阻力系数较大。其(qi)结构(gou)与(yu)(yu)截(jie)止(zhi)(zhi)(zhi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)相似，阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)体(ti)和阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)与(yu)(yu)截(jie)止(zhi)(zhi)(zhi)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)相同。阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)上(shang)部(bu)(bu)和阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)盖(gai)下部(bu)(bu)加工(gong)有导(dao)向(xiang)套简，阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)导(dao)向(xiang)简可(ke)在(zai)(zai)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)盏导(dao)向(xiang)简内(nei)自(zi)由升(sheng)降(jiang)(jiang)，当介(jie)质顺流(liu)(liu)(liu)(liu)(liu)(liu)(liu)时，阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)瓣(ban)(ban)(ban)(ban)(ban)靠介(jie)质推力开(kai)启。化工(gong)部(bu)(bu)止(zhi)(zhi)(zhi)回(hui)(hui)(hui)(hui)(hui)阀(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)(fa)批发

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