風(feng)(feng)(feng)管的(de)嚴(yan)(yan)密(mi)性(xing)檢(jian)(jian)(jian)(jian)(jian)驗(yan)：風(feng)(feng)(feng)管安裝完(wan)畢后，應(ying)按系(xi)統(tong)(tong)(tong)壓(ya)力等級(ji)進行(xing)(xing)嚴(yan)(yan)密(mi)性(xing)檢(jian)(jian)(jian)(jian)(jian)驗(yan)，漏風(feng)(feng)(feng)量(liang)(liang)應(ying)符(fu)合(he)(he)國家規(gui)范《通風(feng)(feng)(feng)與空(kong)調工程施工質量(liang)(liang)驗(yan)收規(gui)范》GB50243中的(de)要求，系(xi)統(tong)(tong)(tong)的(de)嚴(yan)(yan)密(mi)性(xing)檢(jian)(jian)(jian)(jian)(jian)驗(yan)應(ying)符(fu)合(he)(he)GB50243規(gui)范附錄A漏光法檢(jian)(jian)(jian)(jian)(jian)測(ce)和漏風(feng)(feng)(feng)量(liang)(liang)測(ce)試的(de)規(gui)定(ding)(ding)。低壓(ya)系(xi)統(tong)(tong)(tong)的(de)嚴(yan)(yan)密(mi)性(xing)檢(jian)(jian)(jian)(jian)(jian)驗(yan)宜采(cai)用抽(chou)(chou)檢(jian)(jian)(jian)(jian)(jian)，抽(chou)(chou)檢(jian)(jian)(jian)(jian)(jian)率為5%且抽(chou)(chou)檢(jian)(jian)(jian)(jian)(jian)不少于一個系(xi)統(tong)(tong)(tong)。在加(jia)工工藝及漏光檢(jian)(jian)(jian)(jian)(jian)測(ce)不合(he)(he)格時，應(ying)按規(gui)定(ding)(ding)的(de)抽(chou)(chou)檢(jian)(jian)(jian)(jian)(jian)率做漏風(feng)(feng)(feng)量(liang)(liang)測(ce)試。中壓(ya)系(xi)統(tong)(tong)(tong)的(de)嚴(yan)(yan)密(mi)性(xing)檢(jian)(jian)(jian)(jian)(jian)驗(yan)，應(ying)在嚴(yan)(yan)格的(de)漏光檢(jian)(jian)(jian)(jian)(jian)測(ce)合(he)(he)格條(tiao)件下(xia)，不銹(xiu)鋼(gang)不銹(xiu)鋼(gang)圓(yuan)管焊(han)接價格，對系(xi)統(tong)(tong)(tong)風(feng)(feng)(feng)管漏風(feng)(feng)(feng)量(liang)(liang)進行(xing)(xing)抽(chou)(chou)檢(jian)(jian)(jian)(jian)(jian)，抽(chou)(chou)檢(jian)(jian)(jian)(jian)(jian)率為20%，且抽(chou)(chou)檢(jian)(jian)(jian)(jian)(jian)不少于一個系(xi)統(tong)(tong)(tong)。高壓(ya)系(xi)統(tong)(tong)(tong)應(ying)全(quan)數進行(xing)(xing)漏風(feng)(feng)(feng)量(liang)(liang)測(ce)試。

螺旋(xuan)(xuan)(xuan)風(feng)(feng)管(guan)市(shi)場上按材質一般(ban)分為三類(lei)：鍍鋅(xin)(xin)螺旋(xuan)(xuan)(xuan)風(feng)(feng)管(guan)、不(bu)銹鋼(gang)螺旋(xuan)(xuan)(xuan)風(feng)(feng)管(guan)以及復(fu)合(he)螺旋(xuan)(xuan)(xuan)風(feng)(feng)管(guan)。其中，不(bu)銹鋼(gang)風(feng)(feng)管(guan)，適用性(xing)強(qiang)，但價格高。市(shi)場通廣(guang)的螺旋(xuan)(xuan)(xuan)風(feng)(feng)管(guan)是鍍鋅(xin)(xin)板的。鍍鋅(xin)(xin)板螺旋(xuan)(xuan)(xuan)風(feng)(feng)管(guan)，基(ji)本是不(bu)銹鋼(gang)螺旋(xuan)(xuan)(xuan)風(feng)(feng)管(guan)的特性(xing)，但是價格相對只有(you)不(bu)銹鋼(gang)風(feng)(feng)管(guan)的三分之二甚至(zhi)更低(di)。復(fu)合(he)螺旋(xuan)(xuan)(xuan)風(feng)(feng)管(guan)一般(ban)應(ying)用在(zai)外(wai)界環境較為普通，對風(feng)(feng)管(guan)要(yao)求不(bu)太高的場所。

凈化風(feng)(feng)管制作過程應注意的細節：1 、風(feng)(feng)管和部(bu)件(jian)的板(ban)材(cai)(cai)應按設計(ji)要(yao)求(qiu)選用(yong)，設計(ji)無要(yao)求(qiu)時應采用(yong)冷軋鋼(gang)板(ban)或(huo)鍍鋅鋼(gang)板(ban)。2、風(feng)(feng)管不得有橫向(xiang)(xiang)拼(pin)接(jie)縫(feng)(feng)，盡量減少縱(zong)向(xiang)(xiang)拼(pin)接(jie)縫(feng)(feng)。矩(ju)形風(feng)(feng)管底邊寬度等于(yu)或(huo)小于(yu)800mm時，其底邊不得有縱(zong)向(xiang)(xiang)拼(pin)接(jie)縫(feng)(feng)。3、風(feng)(feng)管板(ban)材(cai)(cai)的拼(pin)接(jie)采用(yong)單咬口(kou)；圓形風(feng)(feng)管的閉合(he)縫(feng)(feng)采用(yong)單咬口(kou)，彎管的橫向(xiang)(xiang)縫(feng)(feng)采用(yong)立(li)咬口(kou)；矩(ju)形風(feng)(feng)管轉(zhuan)角(jiao)縫(feng)(feng)采用(yong)轉(zhuan)角(jiao)咬口(kou)、聯合(he)角(jiao)咬口(kou)或(huo)按扣式咬口(kou)。上述咬口(kou)縫(feng)(feng)處都必須涂密封(feng)膠或(huo)貼密封(feng)膠帶。