BNG*800mm防爆防腐防塵撓性連接管

適用范圍：

1區 2區危險場(chang)所。

ⅡA、ⅡB、ⅡC   類爆炸(zha)性(xing)氣體環境。

產BNG*800mm防爆防腐防塵撓性連接管品特點：

具有(you)耐(nai)燃、耐(nai)腐蝕、耐(nai)水、耐(nai)老化、撓(nao)性(xing)良好、結構牢固、工作(zuo)可(ke)(ke)靠等(deng)特(te)點。 橡膠防爆撓(nao)性(xing)連(lian)接軟(ruan)管長度，可(ke)(ke)根據用戶(hu)需要特(te)殊加(jia)工。 配套(tao)碳(tan)鋼(gang)內絲、外絲接頭螺紋標準有(you):    英制(zhi)G螺紋、美標NPT螺紋、 公(gong)制(zhi)ISO等(deng)。

標注(zhu)螺紋(wen)規格時(shi)應注(zhu)明內、外絲螺紋(wen)。 產品符合GB3836‐2000,IEC60079標準要求。

所有變送器(qi)選(xuan)用(yong)智能本質安(an)全(quan)防爆型(xing),信號為 4-20mA,支持HART協(xie)議，帶LCD現場顯示，防爆等級不低于(yu)ExiaIICT4 或 ExdII CT4，優先選(xuan)用(yong) ExiaIICT4。盡(jin)量(liang)(liang)不選(xuan)用(yong)開關(guan)型(xing)檢(jian)測儀(yi)表（壓力開關(guan)、流量(liang)(liang)開關(guan)、液位(wei)開關(guan)等）。

5)所有安裝在(zai)危險區域的儀(yi)表(biao)(biao)及其附件防(fang)(fang)護(hu)等(deng)(deng)級(ji)(ji)不(bu)低(di)于 IP65,儀(yi)表(biao)(biao)電氣接(jie)(jie)口(kou)一般規(gui)格為 1/2" NPT(F),帶接(jie)(jie)線(xian)(xian)盒型,一纜到底,不(bu)允(yun)許選用(yong)澆鑄密封尾(wei)絲形式。現(xian)場表(biao)(biao)至接(jie)(jie)線(xian)(xian)箱（接(jie)(jie)線(xian)(xian)盒）間(jian)信號線(xian)(xian)用(yong)穿管(guan)加防(fang)(fang)爆(bao)撓性軟管(guan)保護(hu)。接(jie)(jie)線(xian)(xian)箱選用(yong)增(zeng)安型，防(fang)(fang)爆(bao)等(deng)(deng)級(ji)(ji)ExeIICT4，防(fang)(fang)護(hu)等(deng)(deng)級(ji)(ji)不(bu)低(di)于IP65，材質(zhi)316SS。接(jie)(jie)線(xian)(xian)箱進(jin)、出(chu)(chu)線(xian)(xian)口(kou)帶不(bu)銹(xiu)鋼(gang)防(fang)(fang)爆(bao)密封接(jie)(jie)頭，采用(yong)NPT 螺紋連(lian)接(jie)(jie)。進(jin)、出(chu)(chu)線(xian)(xian)方式：下進(jin)下出(chu)(chu)。未接(jie)(jie)線(xian)(xian)口(kou)配(pei)不(bu)銹(xiu)鋼(gang)防(fang)(fang)爆(bao)堵(du)頭。 

6)機泵(beng)組應配(pei)套提(ti)供(gong)所有的(de)一次(ci)顯示(shi)儀(yi)表、一次(ci)檢測、發訊元件(jian)及安裝材料。所有管道儀(yi)表均應嚴格按流程圖要求配(pei)置。

就地/遠傳壓(ya)力顯示儀表(biao)及其(qi)配管材(cai)質為(wei)316L不銹鋼。 

溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)檢測(ce)儀表：就地溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)指示儀表選用(yong)(yong)帶(dai)外(wai)(wai)保護套管(guan)的(de)(de)φ100mm 萬向型雙(shuang)金(jin)屬溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)計，外(wai)(wai)殼及套管(guan)的(de)(de)材(cai)質：316SS；遠傳檢測(ce)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)儀表：設備及管(guan)路上的(de)(de)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)測(ce)量(liang)元(yuan)件選用(yong)(yong)插入(ru)式(shi)鎧裝Pt100熱(re)電(dian)阻(zu)，絕(jue)緣型，三線制(zhi)，帶(dai)外(wai)(wai)保護套管(guan)，保護套管(guan)全部(bu)采(cai)(cai)用(yong)(yong)整(zheng)體(ti)(ti)鉆孔式(shi)，材(cai)質采(cai)(cai)用(yong)(yong) 316SS；埋入(ru)式(shi)鉑(bo)熱(re)電(dian)阻(zu)選用(yong)(yong)防(fang)滲油(you)雙(shuang)支Pt100 熱(re)電(dian)阻(zu)，現場安裝及引(yin)出線采(cai)(cai)取防(fang)漏油(you)措施。溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)檢測(ce)回路選用(yong)(yong)帶(dai)彈簧壓緊式(shi)鎧裝熱(re)電(dian)阻(zu)/熱(re)電(dian)偶。溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)儀表采(cai)(cai)用(yong)(yong)熱(re)電(dian)阻(zu)、熱(re)電(dian)偶測(ce)溫(wen)(wen)(wen)(wen)(wen)元(yuan)件，配一體(ti)(ti)式(shi)或分(fen)體(ti)(ti)式(shi)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)變(bian)送器(qi)。所有溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)測(ce)量(liang)儀表，現場環(huan)境(jing)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)≥60℃，用(yong)(yong)分(fen)體(ti)(ti)式(shi)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)變(bian)送器(qi)，變(bian)送器(qi)帶(dai)現場顯示；環(huan)境(jing)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)＜60℃，用(yong)(yong)一體(ti)(ti)化(hua)溫(wen)(wen)(wen)(wen)(wen)度(du)(du)(du)(du)變(bian)送器(qi)；

7）參與聯鎖的儀表(biao)具有SIL2認(ren)證，帶(dai)認(ren)證證書。

8)現場儀(yi)表應(ying)布置在方便觀察、操作(zuo)、檢修(xiu)的位置。 

9）不同(tong)信(xin)(xin)號(hao)類(lei)型分設(she)接(jie)線(xian)箱，如4～20mA信(xin)(xin)號(hao)、RTD信(xin)(xin)號(hao)、干(gan)接(jie)點信(xin)(xin)號(hao)、電磁閥驅(qu)動電源等。

10)機組PLC系統與(yu)用戶提供的DCS系統，通訊接口為(wei) RS485，接線口尺寸為(wei) 1/2NPT。PLC系統所有數據(ju)通過RS485通訊至主控室(shi)顯示，賣方提資給設計院(yuan)設計PLC至DCS間的通訊線路(lu)。