注意事項：

    由于人孔安(an)裝在(zai)油罐的最下(xia)層體圈(quan)上(shang)，防滲(shen)漏就顯得特別重要。要求兩法蘭(lan)結合面必須保證其平直度，無飄扭現象。加強板和法蘭(lan)應盡量在(zai)整塊鋼板上(shang)切(qie)割而(er)不拼接(jie)。法蘭(lan)和蓋(gai)板上(shang)加工有(you)密封圈(quan)，在(zai)施工中要特別注意保護。密封用3mm厚(hou)石棉橡(xiang)膠(jiao)墊片，不允許有(you)折裂。安(an)裝人孔蓋(gai)板上(shang)緊螺栓時，要成對角均與用力，以防孔蓋(gai)變形。

1、以人孔上(shang)覆承受負荷能力劃分以人孔上(shang)覆承受負荷能力劃分可(ke)分為汽(qi)(qi)-20級(ji)(ji)和汽(qi)(qi)-10級(ji)(ji)兩種(zhong)

2、以人(ren)(ren)孔(kong)的通(tong)向劃分可(ke)分為直通(tong)人(ren)(ren)孔(kong)、三通(tong)人(ren)(ren)孔(kong)、四通(tong)人(ren)(ren)孔(kong)和斜(xie)(xie)通(tong)人(ren)(ren)孔(kong)，具體詳見下表(biao)1。其中，斜(xie)(xie)通(tong)人(ren)(ren)孔(kong)又分為15°、30°、45°、60°、75°共五(wu)種。每(mei)種斜(xie)(xie)通(tong)人(ren)(ren)孔(kong)的角度，可(ke)適(shi)用(yong)于±7.5°范圍以內。

    我廠專(zhuan)業生產(chan)(chan)的(de)(de)矩(ju)形人(ren)(ren)(ren)孔(kong)(kong)(kong),矩(ju)形保(bao)(bao)溫人(ren)(ren)(ren)孔(kong)(kong)(kong)，以及各種標準規格的(de)(de)人(ren)(ren)(ren)孔(kong)(kong)(kong),人(ren)(ren)(ren)孔(kong)(kong)(kong)蓋(gai),產(chan)(chan)品有(you)不(bu)銹(xiu)鋼人(ren)(ren)(ren)孔(kong)(kong)(kong),橢圓人(ren)(ren)(ren)孔(kong)(kong)(kong),圓形人(ren)(ren)(ren)孔(kong)(kong)(kong),保(bao)(bao)溫人(ren)(ren)(ren)孔(kong)(kong)(kong),矩(ju)形人(ren)(ren)(ren)孔(kong)(kong)(kong),壓(ya)(ya)力人(ren)(ren)(ren)孔(kong)(kong)(kong),另有(you)多種標準規格圓形保(bao)(bao)溫人(ren)(ren)(ren)孔(kong)(kong)(kong),橢圓人(ren)(ren)(ren)孔(kong)(kong)(kong)出售(shou),不(bu)銹(xiu)鋼人(ren)(ren)(ren)孔(kong)(kong)(kong)蓋(gai)材質(zhi)有(you)304、316、316L、321等,質(zhi)優(you)價廉,歡迎來(lai)人(ren)(ren)(ren)來(lai)電洽(qia)談(tan)!生產(chan)(chan)管理嚴(yan)格按(an)照(zhao)ISO9001國際質(zhi)量體系的(de)(de)要求(qiu)進行，并(bing)擁有(you)先進的(de)(de)機(ji)械加(jia)(jia)(jia)工、檢測設備和高(gao)技術(shu)的(de)(de)、高(gao)素質(zhi)的(de)(de)員工隊伍，保(bao)(bao)證(zheng)了產(chan)(chan)品的(de)(de)高(gao)層次,專(zhuan)業生產(chan)(chan)各種材質(zhi)的(de)(de)不(bu)銹(xiu)鋼人(ren)(ren)(ren)孔(kong)(kong)(kong),橢圓人(ren)(ren)(ren)孔(kong)(kong)(kong),圓形人(ren)(ren)(ren)孔(kong)(kong)(kong),保(bao)(bao)溫人(ren)(ren)(ren)孔(kong)(kong)(kong),矩(ju)形人(ren)(ren)(ren)孔(kong)(kong)(kong),壓(ya)(ya)力人(ren)(ren)(ren)孔(kong)(kong)(kong)等，人(ren)(ren)(ren)孔(kong)(kong)(kong)種類有(you)常(chang)壓(ya)(ya)式(shi)、壓(ya)(ya)力式(shi)、手輪式(shi)、長方形、橢圓、橢圓帶鏡、手孔(kong)(kong)(kong)、方形等；規格材質(zhi)可(ke)根據客(ke)戶(hu)(hu)選擇生產(chan)(chan)。還(huan)可(ke)根據客(ke)戶(hu)(hu)來(lai)圖、來(lai)樣加(jia)(jia)(jia)工非標等人(ren)(ren)(ren)孔(kong)(kong)(kong),也(ye)可(ke)按(an)用(yong)戶(hu)(hu)的(de)(de)要求(qiu)加(jia)(jia)(jia)工制造(zao)非標人(ren)(ren)(ren)孔(kong)(kong)(kong)產(chan)(chan)品，深受(shou)老客(ke)戶(hu)(hu)的(de)(de)認可(ke)和好評(ping)。