- 詳細說明
NKZ41H/NKZ941H本系列真空隔離閘閥連接形式分法蘭、焊接兩種,驅動方式有手動、電動兩種。該真空隔離閘閥適用于工作溫度≤425℃和≤550℃,工作介質為水、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冷凝和真空負壓系統(tǒng),起真空隔離密封作用。
結構特點
1、設計了真空密封結構填料室,使系統(tǒng)與大氣隔離,具有良好的環(huán)保性能。
2、選材考究,符全國內外相關標準,材料的全面質量高。
3、密封副配對合理,提高了密封性能,使用壽命長。
4、啟閉件采用平行閘板雙向彈性密封,摩擦力小,啟閉輕松,維修方便,密封可靠,性能優(yōu)良。
5、閥桿經調質及表面氮化處理,有良好的抗腐蝕性、抗擦傷性和耐磨性。
6、法蘭墊片采用復合材料,膨脹系數(shù)大、氣密性能好、保證系統(tǒng)與大氣隔離可靠。
試驗壓力公稱壓力
PN/MPa
Nominal
pressure試驗壓力/MPa Seal test殼體強度試驗
Shell strength上密封試驗
Back seal test密封試驗
Seat test1.01.51.11.11.62.41.81.82.53.82.82.84.06.O4.44.46.48.67.O7.01O.O15.O11.O11.O使用范圍產品類型
Product type適用介質
Applicable medium適用溫度/℃
Applicable temperatureNKZ41/0H
NKZ44H
NKZ944H-C型
NKZ941/0H水、蒸汽、空氣
Water,Steam,Air≤425NKZ41/0H(Y)
NKZ44H(Y)-I型
NKZ944H(Y)-I型
NKZ941/0H(Y)水、蒸汽、空氣
Water,Steam,Air≤550主要零件材料零件名稱
Part name閥體、閥蓋
Body Bonnet閥桿
Stem閘板
Wedge gate密封面
Sealing face閥桿螺母
Yokenut填料
Parking緊固件
FastenerNKZ44H
NKZ41/0H-C型
NKZ944H-C型
NKZ941/0HWCB2Crl325H:合金鋼
H:alloy steel鋁青銅
Albronze膨脹復合石墨
Expanding
comDound
graphite優(yōu)質碳鋼
High-grade
carbon steelNKZ44
NKZ41Y-I型
NKZ944-I型
NKZ941鉻鉬鋼
Cr.Mo steel20CrlMo1VA
38CrMoAlA鉻鉬鋼
Cr.Mo steelY:硬質合金
Y:carbide alloy鉻鉬鋼
Cr.Mo steel主要尺寸及重量公稱通徑
DN/mm
Nominal
diameter公稱壓力
PN/MPa
Nominal
pressure主要外形尺寸和連接尺寸/mm
Main extemal and connecting dimensions閥門
重量
/kg
Valve
weight附法蘭尺寸/mm
Additional flange’s
dimensionsLHDD1D2bfz-dWhD0Dn501.O2503451601251OO1634-1825028454958652703951801451201834-1825040486475802804251951601352034-183005550789710030051O2151801552038-1830072529611012532557024521O1852238-183501066012013615035072528024021O2438-18350146601451632004008203352952652638-184002206220222325045089039035032028312-2340031562225278300500107044040036828312-2345039865303330350550132050046042830416-2355053065351382400600145056551548232416-2555069065398432450650156061556553232420-2560087070460485500700172067062058534420-25650108078500535600800188078072568536520-30700135090600636700900208589584080040524-307501950906907268001OOO2590101O95090544524-348002500106790826501.62503451601251OO1634-1825028484958652703951801451201834-1825040506475802804251951601352038-183005852789110030051O2151801552038-1830075529611012532557024521O1852238-183501106012013615035072528024021O2438-233501506014516320040082033529526526312-234002236220122325045089040535532030312-2545032668253278300500107046041O37530312-2555043270303330350550132052047043534416-2560057278351382400600145058052548536416-3065074090398432450650156064058554540420-3070095595450485500700172070565060844420-34750119598500535600800188084077071848520-4180014551056006367009002085g1O84078850524-41850211O11O6907268001OOO2590102095089852524-41950263011579082650252503451601251002034-1825030484964652703951801451202238-1825043526682802804251951601352238-18300605578951OO3005102301901602438-2330079621001171253255702702201882838-25350114681251441503507253002502183038-253501577215117220040082036031027834312-254002436020122325045089042537033236312-3045034585253278300500107048343039040416-305504559230333035055013205504g044844416-3465061598351382400145061055050548416-347007g4115398432450650156066060055550420-347501018115450483500700172073066061O52420-418001250120498535600800188084077071856520-418501528130598636700900208595587581560524-48900226514068872680010002590107099093064524-4810002847150788826主要尺寸及重量公稱通徑
DN/mm
Nominal
di8m8ter公稱壓力
PN/MPa
Nominal
pressure主要外形尺寸和連接尺寸/mm
Main external and connecting dimensions閥門
重量
/kg
Valve
weight附法蘭尺寸/mm
Additional flange’s dimensionsLHDD1D2bfD6f2z-dWhDODn504.O2503451601251002038844-18300354848646527039518014512022311O48-18300495266828028042519516013522312148-18350655878951003005102301901602431504.58-2335087681001171253255702702201882831764.58-25400124681251441503507253002502183032044.58-25400172721511722004008203753202823832604.512-304502758819g2232504508904453853454233134.512-34550392102251278300500107051O4504084643644.516-346505151163013303505501320570510465524422516-3475068412034g3824006001450655585535584474516-41850902142396432訂貨須知:一、①NKZ41H真空隔離閘閥產品名稱與型號②NKZ41H真空隔離閘閥口徑③NKZ41H真空隔離閘閥是否帶附件以便我們的為您正確選型。
二、若已經由設計單位選定大唐閥門公司的NKZ41H真空隔離閘閥型號,請按NKZ41H真空隔離閘閥型號直接向我司銷售部訂購。
三、當使用的場合非常重要或環(huán)境比較復雜時,請您盡量提供設計圖紙和詳細參數(shù),由大唐閥門的技術人員為您審核把關。
感謝您訪問我們的網(wǎng)站,如有任何疑問.您可以致電給我們,我們一定會盡心盡力為您提供優(yōu)質的服務。