Vacuum isolation gate valve This valve is used in working temperature ≤ 425 °C and ≤ 550 °C, the working medium is water, steam or air pipeline, as the opening and closing device; in particular for thermal power plant turbine condensation and vacuum system, from the vacuum isolation seal use. The valve is used in operating temperature ≤ 425 °C and ≤ 550 °C, the working medium for water, steam or air pipeline, as the opening and closing device; in particular for thermal power plant turbine condensation and vacuum systems, vacuum isolation sealing purposes. Technical parameters Model: NKZ44, NKZ944H Specification: DN50-DN800 Details Inspection pressure Test pressure Design pressure PN (MPa) Nominal pressure Inspection pressure (MPa) Seal test Shell strength test (MPa) Shell strength test Sealing experiment (MPa) Back Seal test (MPa) Seal test 1.01.51.11.11.62.41.81.82.53.82.81.84.06.04.44.46.49.67.07.010.015.011.011.0 Range of application Applicable product type Produect type Allowable medium Applicable temperature (Applicable temperature. KZ44H KZ944H)-C Type Water, Steam, Air Water.steam.air≤425(KZ44Y KZ964Y)-C Type Water, Steam, Air Water.steam.air≤425 Main Parts Materials Material for main parts Part Name Part name Valve Body, cover Body.bonnet Stem stem Gate plate Wedge gate Sealing surface Sealing face Stem nut Yoke nut Packing Fastening steel Fastener (HDKZ44H HDKZ944H)-C carbon steel 2Cr1325H: Alloy steel H: alloy steel Aluminum bronze All bronze Expanded composite graphite Expanding compund graphite High-grade carbon steel (HDKZ44Y HDKZ964Y) - Type I chromium-molybdenum steel Cr.Mo.Steel20Cr1Mo1VA20Cr1Mo1VAY: Cemented carbide Y: carbonide a Lloy aluminum bronze Al bronze chrome molybdenum steel Cr.Mo.Steel Main dimensions and weight Nominal diameter DN (mm) Nominal diameter Design pressure PN (MPa) Nominal pressure Main dimensions and installation dimensions (mm) Dimensions Valve quality (kg) Valve weight attachment flange size (mm) Additional flang's dimensions mass (kg) WeightLHDD1D2bfz-dw501.02503451601251001634-18250284549582.4652703951801451201834-18250404864753.2802804251951601352034-18300555078973081003005102151801552038-183007252961104.61253255702452401852238-183501066012013671503507252802402102438-183501466014516392004008203352952652638-18400220622012231225045089039035032028312-234003986525327818300500107044040036828312-234503986530333020350550132050046042830416-235505306535138224400600145056551548232416-255506906539843229450650156061556553232420-256008707046048534500700172067062058534420-2565010807850053541600800188078072568536520 -3070015509060063653700900208589584080040524-30750195090690726708001.610002590101095090544524-34800250010679082694502503451601251 001634-18250284849582.5652703951801451201834-18250405064753.4802804251954601352038-18300585278914.41003005102151801552038-183007552961105.21253255702452101852238-183501106012013671503507252802402102438-2335015060145163920040082033529526526312-23400223622012231225045089040535532030312-254503266825327819300500107046041037530312-255504327030333025350550132052047043534416-256005727835138233400600145058052548536416-306507409039843243450650156064058554540420-306507409045048554500700172070565060844420-3475011959850053572600800188084077071848520-41800145510560063691700900208591084078850524-41850211011069072610380010002950102095089852524-419502630115790826126 main dimensions and quality of vacuum insulation Main dimensions and weight Nominal by (mm Nominal diameter ) Design pressure PN (MPa) Nominal Pressure Main dimensions and mounting dimensions (mm) Dimensions Valve mass (kg) Valve weight Additional flange dimensions (mm) Additional flang's dimensions Mass (kg) weight LHDD1D2bfz-dWhD0DN502.52503451601251002034-18250304849642.9652703951801 Nominal by 451202238-18250435266823.8802804251951601352238-18300605578954.81003005102301901602438-23300796210011771253255702702201882838-2535011468125144101503507253002502183038-25350157721511721320040082036031027834312-25400243602012231925045089042537033236312-304503458525327823300500107048343039040316-305504559230333035350550132055049044844416-346506159835138254400600145061055050548416-3470079411539843268450650156066060055550420-34750101811545048385500700172073066061052420-41800125012049853595600800188084077071856520-418501528130598636128700900208595587581560524-48900226514068872617580010002590107099093064524-4810002847150788826230 (mm Nominal diameter) Design pressure PN (MPa) Nominal Pressure main dimensions And installation dimensions (mm) Dimensions valve mass (kg) Valve weight flange size (mm) Additional flang's dimensions mass (kg) weight LHDD1D2bfD6f2z-dWhD0DN504.02503451601251002038844-183548486436536539518014512022311048-184952668248028042519516013522312148-18655878955.3100300510230190160243 1504.58-2387681001177.51253255702702201882831764.58-2512468125144111503507253002502183032044.58-2517272151172142004008203753202823832604.512-3027588199223262504508904453853454233134.512-343921022512783830050010705104504084643644.516-34515116301330543505501320570510465524422516-34684120349382684006001450655585535584474516-41902142396432108 main dimensions and quality Main dimensions and weight Nominal by (mm Nominal diameter) Design pressure PN (MPa) Nominal Pressure main dimensions and installation dimensions ( mm) dimensions mass (kg) Valve weight attachment flange size (mm) Additional flang's dimensions mass (kg) weight LHDD1D2bfD6f2z-dWhD0Dn506.42503501751351052638844-23437048644.76528040520016013028311048-23607565826.58031043521017014030312148-23787576957.61003505152502001683231504.58-251008898117121254005802952402023631764.58-3014098128150181504507353402802403832044.58-34204110149172262005508354053453004432604.512-34317116197223392506509054704003524843134.512-414571222452785430075010805304604125443644.516-41630136293 330723508501340595525475604422516-418501543413821054009801460670585525663474516-4810961703864321455010.02503501951451122838844-25487248646.56528040522017013832311048-25688463829.38031043523018014834312148-258990749510.81003505152652101723831504.58-3011210097117161254005803102502104231764.58-34156115124150251504507353502902504632044.512-34220130144172352005508354303603125432604.512-41352145189223582506509055004303826033134.512-415351702352788930075010805855004427043644.516-487301952813301323508501340655560498764422516-549952103333801784009501460715620558804474516-54220220376432224 Tags: vacuum gate valve, vacuum isolation valve
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