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GB gate valve

Products > Gate valve > GB gate valve

GB gate valve

Model: Z41H
Nominal diameter: DN50 ~ 1200mm
Nominal pressure: PN10 ~ 160MPa
Working temperature: -29 ℃ ~ + 600 ℃
Main material: carbon steel, stainless steel, alloy
Design and manufacture: GB12234
Structural length: GB12221
Flange Dimensions: GB9113 JB79
pressure temperature: GB9131
Test test: GB / T13927, JB / T9092
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First, the national standard gate valve introduction

Purpose and Features Gate valve is one of the most common opening and closing valve, the use of the gate up and down work to connect (fully open) and cut off (fully closed) in the pipeline fluid medium. 
 1, the fluid resistance is small, the sealing surface by the media erosion and erosion of small (gate opening height high). 
 2, open a more powerful, good sealing performance, the flow of media is not restricted, not spoiler, not down pressure. 
 3, the shape is simple, manufacturing technology is good, a wide range of applications.


 Pressure test

Nominal pressure1.62.54.06.410.016.0
Strength test2.43.86.09.615.024.0
Water seal test1.82.84.47.011.018.0
Seal test1.82.84.47.0411.018.0
Gas seal test0.4-0.7


 Second, the main components of GB valve material and performance

Body coverValve stemSealing surfaceGasketfillerOperating
temperature
Suitable media
WCB2Cr1313CrSTL Body
Material Nylon
Reinforced flexible
graphite
1Cr13 /flexible
graphite
08 mild steel
0Cr18Ni9Ti0Cr17Ni12 
Mo2TiXD550F (T) PTFE
Flexible
Graphite
Reinforced 
Flexible
Graphite 
SFB
/260SFP 
/260PTFE
≤425Water,
steam,
oil
WC138CrMoA125Cr2MoV≤450
WC6≤540
WC9≤570
ZGCr5Mo≤540
ZG1Cr18Ni9Ti1Cr18Ni9Ti≤200Sales acid
ZG1Cr18Ni12Mo2Ti1C18Ni12Mo2Ti≤200Acetic acid


 Third, the main gate size GB

PN1.6MPa specifications of the main dimensions

1.6MPaDNLdD1D2bn-ΦdHD0
Planar method  
RF 
Z40H 
Z40Y 
Z40W 
Z40F 
Z40NZ41H 
Z41Y 
Z41F 
Z41N16C  
16P 
16R 
16I
15130956545144-Φ14170120
201501057555144-Φ14190140
251601158565144-Φ14205160
3218013510078164-Φ18270180
4020014511085164-Φ18310200
50250160125100164-Φ18358240
65265180145120184-Φ18373240
80280195160135208-Φ18435280
10030025180155208-Φ18500300
125325245210185228-Φ18614320
150350280240210248-Φ23674320
2004003352952652612-Φ23818400
2504504053553203012-Φ25969450
3005004604103753012-Φ251145500
3505505204704353416-Φ251280500
4006005805254853616-Φ3014852560
4506506405855454020-Φ301541600
5007007056506084420-Φ341676640
6008008407707184820-Φ411874720
7009009108407885024-Φ412083800
800100010209508985224-Φ412400950
9001100112010509986428-Φ4129501000
100012001255117011105628-Φ4832451000

 

PN2.5MPa specifications of the main dimensions

2.5MPaDNLDD1D2bn-ΦdHDO
Planar method  
RF 
Z40H 
Z40Y 
Z40W 
Z40F 
Z40NZ41H 
Z41Y 
Z41F 
Z41N25C  
25P 
25R 
25I
15130956545164-Φ14172120
201501057555164-Φ14191140
251601158565164-Φ14205160
3218013510078184-Φ18270180
4020014511085184-Φ18300200
50250160125100204-Φ18357240
65265180145120228-Φ18376240
80280195160135228-Φ18434280
100300230190160248-Φ23502300
125325270220188288-Φ25613320
150350300250218308-Φ25675320
2004003603102783412-Φ25819400
2504504253703323612-Φ30968450
3005004854303904016-Φ301144500
3505505504904484416-Φ341280500
4006006105505054816-Φ341451560
4506506606005555020-Φ341542600
5007007306605105220-Φ411678640
6008008407707185620-Φ411875720
7009009558758156024-Φ282082800
800100010709909306424-Φ282403950
90011001180109010256628-Φ5429521000
100012001305121011406828-Φ5832441000

PN4.0MPa ~ 6.4 MPa Specifications The main dimensions

4.0MPaDNLDD1D2D6bn-ΦdHD0
Concave method  
MFM 
Z40H 
Z40Y 
Z40W 
Z40F 
Z40NZ41H 
Z41Y 
Z41F 
Z41N40 
40P 
40R 
40I
1513095654540164-Φ14134120
20150105755551164-Φ14188140
25160115856458164-Φ14206140
321801351007866184-Φ18272180
402001451108576184-Φ18322180
5025016012510088204-Φ18370240
65280180145120110228-Φ18394280
80310195160135121228-Φ18455300
100350230190160150248-Φ23550320
125400270220188176288-Φ2563635
150450300250218204308-Φ30706400
2005503753202822603812-Φ34859450
2506504453853453134212-Φ341016560
3007505104504083644616-Φ341200640
3508505705104654225216-Φ411340640
4009506555855354745816-Φ411495720
45010506806105605246020-Φ481581800
50011507556706125766220-Φ541790950
60013508906957306786220-Φ142035950
6.4MPa151700105755540184-Φ181425160
Concave method  
MFM 
Z40H 
Z40Y 
Z40W 
Z40F 
Z40NZ41H 
Z41Y 
Z41F 
Z41N64 
64P 
64R 
64I
20190125906851204-Φ18142160
252101351007858224-Φ23214200
322301501108266244-Φ23269200
402401651259576244-Φ23343240
5025017513510588264-Φ23370240
65280200160130110288-Φ23396280
80310210170140121308-Φ23458300
100350250200168150328-Φ25553300
125400295240202176368-Φ30638350
150450340280240204388-Φ34718400
2005504053453002604412-Φ34873450
2506504704003523134812-Φ411050560
3007505304604123645416-Φ411203640
3508505955254754226016-Φ411394720
4009506705855254746616-Φ481645800
50011508007056405767020-Φ542285950
60013509308207506787020-Φ582610950

 

PN10.0MPa ~ 16.0MPa (Specification main dimensions)

10.0MPaDNLDD1D6bb-ΦdHD0
Concave method  
MFM 
Z40H 
Z40Y 
Z40WZ41H 
Z41Y 
Z41W100 
100P 
100R 
100I
151701057540204-Φ14175160
201901259051224-Φ18180160
2521013510058244-Φ18310180
3223015011066244-Φ23320200
4024016512576264-Φ23360200
5025019514588284-Φ25490240
65280220170110328-Φ25540240
80310230180121348-Φ25573280
100350265210150388-Φ30575320
125400310250176428-Φ34744360
1504503502902044612-Φ34800400
2005004303602605412-Φ41800500
2506505004303136012-Φ411050640
3007505855003647016-Φ481208720
3508506555604227616-Φ541410720
4009507156204748016-Φ541655800
16.0MPa151701107540244-Φ18230160
Concave method  
MFM 
Z40H 
Z40Y 
Z40WZ41H 
Z41Y 
Z41W160 
160P 
160R 
160I
201901309051264-Φ23260180
2521014010058284-Φ23280200
32231016511566304-Φ25312200
4024017512576324-Φ27350240
5030021016588368-Φ25412280
65340245190110448-Φ30560320
80390260205121468-Φ305853.50
100450300240150488-Φ34630400
125525355285176608-Φ41723500
1506003903182046612-Φ41820560
2007504804002607812-Φ8990720
2508505804853138812-Φ541104800
30095066557036410016-Φ541314800


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