主要特點(diǎn)與用途： 1.在消化吸收API、ANSI、JIS等*進(jìn)標(biāo)準(zhǔn)的同時(shí)設(shè)計(jì)出結(jié)構(gòu)簡(jiǎn)單，工藝*，材料合理，具有飛球特色的真空隔離閥系列，其性能與質(zhì)量明顯優(yōu)于國(guó)內(nèi)同類(lèi)產(chǎn)品。 2.主體采用鑄鍛結(jié)構(gòu)，具有平行雙密封副半強(qiáng)制雙向密封，密封面到位運(yùn)動(dòng)和楔形塊楔緊運(yùn)動(dòng)分步作用實(shí)現(xiàn)零泄露。 3.密封面運(yùn)動(dòng)摩擦力小，啟閉輕便，而且密封面磨損有自動(dòng)補(bǔ)償功能。 4.閥蓋填料室有真空密封結(jié)構(gòu)，具有自脹壓緊作用，并且各接合面采用高強(qiáng)膨脹材料密封，使系統(tǒng)與大氣*隔離，具有很好的系氣密性。 5.本系列閥門(mén)連接形式分法蘭、焊接兩種，驅(qū)動(dòng)方式有手動(dòng)、電動(dòng)兩種。 　該閥門(mén)本適用于工作溫度≤425℃和≤550℃,工作介質(zhì)為水、蒸汽或空氣的管路上，作為啟閉裝置；尤其適用于火電廠汽機(jī)冷凝和真空系統(tǒng)，起真空隔離密封作用。NKJ61型真空隔離截止閥的結(jié)構(gòu)：NKZ44、NKZ64型真空隔離閘閥。 公稱通徑DN/mmNominaldiameter試驗(yàn)壓力/MPa Seal test殼體強(qiáng)度試驗(yàn)Sheli strength上密封試驗(yàn)Back seal密封試驗(yàn)Seal test1.0 1.11.11.6 1.81.82.5 2.82.84.0 4.44.46.4 7.07.010.O 11.011.O 產(chǎn)品類(lèi)型 Product type適用介質(zhì) Applicable medium適用溫度/℃ Applicable temperatureNKZ41HNKZ44HNKZ944HNKZ941H-C型水、蒸汽、空氣Water,Stram.Air≤425NKZ41HNKZ44HNKZ944HNKZ941HY-I型水、蒸汽、空氣Water,Stram.Air≤550 零件名稱Part name閥體、閥蓋Body Bonnet閥桿Valve stem閥板Wedge gate密封面Sealing face閥桿螺母Yoke nut填料Packing緊固件FastenerNKZ44NKZ41NKZ944NKZ941-C型WCB2Gr1325H：合金鋼H：alloy steel鋁青銅Albronze膨脹復(fù)合石墨Expandingcompoundgraphite優(yōu)質(zhì)碳鋼High-gradecarbon steelNKZ44NKZ41NKZ944NKZ941Y-I型鉻鉬鋼Cr.M0 steel20Cr1M01VA38CrMoAIA鉻鉬鋼Cr．Mo steelY：硬質(zhì)合金Y：carbide alloy鉻鉬鋼Cr．Mo steel■主要尺寸/mm Main dimensions NKZ41H-10/NKZ941Y-10I NKZ44H-10/NKZ944Y-10I公稱通徑主要外形尺寸及連接尺寸（mm）LDD1D2bfz-dHH1H2D0手動(dòng)（kg）電動(dòng)（kg）502501601251001834-183504006402202572652651801451202034-183754506702403174802801951601352034-1843352872028040861OO3002151801552238-18502620800320559412532524521O1852438-18612753905360751001503502802402102438-2367684796636010012 92004003352952652438-238201039110040015017425045039035032026412-239691245122045024025430050044040036828412-2311421472152750031029435055050046O42828416-2312801450166555O42038O4006005655154823O416-2514521887187060060093045065061556553230420-25154120111946700850123550070067062058532420-251676218121907001100135660080078072568536520-30200026002510800170018307009008 9 584080040524-30220029002810800210023858001000101095090544524-3423603160295080029003100■主要尺寸/mm Main dimensions NKZ41H-16/NKZ941Y-16I NKZ44H-16/NKZ944Y-16I公稱通徑主要外形尺寸及連接尺寸（mm）LDD1D2bfz-dHH1H2D0手動(dòng)（kg）電動(dòng)（kg）502501601251001634-183504006402202579652651801451201834-1837545067O2403185802801951601352038-1843352872028040941003002151801552038-1850262080032055991253252452101852238-18612753905360751391503502802402102438-2367684796636010015420040033529526526312-238201039110040015021025045040535532030312-259691245122045024030030050046041037530412-2511421472152750031041035055052047043534416-2512801450166555042054840060058052548536416-3014521887187060060073245065064058554540420-3015412011194670085098250070070565060844420-341676218121907001100134560080084077071848520-412000260025108001700218070090091084078850524-41220029002810800210025508001000102095089852524-4123603160295080029003380■主要尺寸/mm Main dimensions NKZ41H-25/NKZ941Y-25I NKZ44H-25/NKZ944Y-25I公稱通徑主要外形尺寸及連接尺寸（mm）LDD1D2bfz-dHH1H2D0手動(dòng)（kg）電動(dòng)（kg）502501601251002034-1835O4006402202579652651801451202238-1837545067O240318580280195601352238-1843352872028040941003002301901602438-2350262O800320601041253252702201882838-25612753905360831471503503002502183038-2567684796636011016420040036031027834312-2582O1039110040016422425045042537O3323 6312-30969124512204502603203005a048543039040416-3011421472152750034544535055O55O49044844416-3412801450166555047059840060061055050548416-3414521887187060069082245065066060055550420-34154120111946700920105250070073066061052420-411676218121907001200144560080084077071856520-412000260025108001700218070090095587581560524-4822002900281O8002300275O8001000107099093064524-4823603160295080031003580■主要尺寸/mm Main dimensions NKZ41H-40/NKZ941Y-40I NKZ44H-40/NKZ944Y-40I公稱通徑主要外形尺寸及連接尺寸（mm）LDD1D2D6bff2z-dHH1H2D0手動(dòng)（Kg）電動(dòng)（kg）50250160125100882O344-1835040064024027816528018014512011022348-1838546067O28038928031019516013512122348-1844353872O320501041003502301901601502434.58-23512630800360681221254002702201881762 834.58-25627768905360981521504503002502182043034.58-256918629664001502102005503753202822603834.512-30840105911004502403002506504453853453134234.512-349941270122050035045O3007505104504083644644.516-34117215021527550510613350850570510465422524516-3413014801665600720848400950655585535474584516-4115021937187070011501282: 0532-8563 6636 圖文傳真:0532-8563 6656:1370 6427 055   :335 1358天津塘美瓦特斯閥門(mén)有限公司青島銷(xiāo)售處