国标闸阀

闸阀是作为截断和接通流体使用,在全开时整个流通直通,此时介质运行的压力损失小。闸阀通常适用于不需要经常启闭,而且保持闸板全开或全闭的工况。不适用于作为调节或节流使用。闸阀广泛适用于石油化工,火力发电厂等油品、水蒸气管路上作接通或截断管路中介质的启闭装置。

  • 适用行业: 石油化工,火力发电厂等
  • 介质对象: 油品、水蒸气管路上作接通或截断管路中介质
  • 材质选择: 钛合金、锆合金、镍合金等
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楔式闸阀产品概述: 

闸阀是作为截断和接通流体使用,在全开时整个流通直通,此时介质运行的压力损失小。闸阀通常适用于不需要经常启闭,而且保持闸板全开或全闭的工况。不适用于作为调节或节流使用。闸阀广泛适用于石油化工,火力发电厂等油品、水蒸气管路上作接通或截断管路中介质的启闭装置。 

产品特点: 

1、结构紧凑、设计合理、阀门刚性好、通道流畅,流量系数小

2、密封面采用不锈钢和硬质合金,使用寿命长

3、采用柔性石墨填料、密封可靠,操作轻便灵活

4、驱动方式为手动、气动、电动、齿轮传动

5、结构形式为弹性楔式单闸板、刚性楔式单闸板双闸板型式 

闸阀执行标准: 

设计规范:GB/T 12234-2007

结构长度:GB/T 12221-2005

连接法兰:HG/T20592-2009

试验与检验:GB/T13927-2008

国标法兰闸阀
主要尺寸 Dimensions of Flanged End
公称压力Nominal PressureSizeDimension(mm)
DNdLD(1)D(2)CgTtHWn-Ø
PN1.6MPa1515130959565461421701204-14
202015010510575561621901404-14
252516011511585651622051604-14
3232180135140100781622701804-18
4040200145150110841823102004-18
5050250160165125992023582404-18
65652651801851451182023732404-18
80802801952001601322024352808-18
1001003002152201801562225003008-18
1251253252452502101842226143208-22
15015035028028524021124267436012-22
20020040033534029526624281840012-26
25025045040540535531926296945012-26
300300500460460410370282114556012-26
350350550520ˉ470435344128064016-25
400400600580ˉ525485364145264016-30
450450650640ˉ585545404154172020-30
500500700705ˉ650608444167872020-34
600600800840ˉ770718485187480020-41
700700900910ˉ840788505ˉˉ24-41
80080010001020ˉ950898525ˉˉ24-41
90090011001120ˉ1050998545ˉˉ28-41
1000100012001255ˉ11701100565ˉˉ28-48
主要尺寸 Dimensions of Flanged End
公称压力Nominal PressureSizeDimension(mm)
DNLD(1)D(2)CgTtHWn-Ø
PN2.5MPa15130959565461421701204-14
2015010510575561621901404-14
2516011511585651622051604-14
32180135140100781622701804-18
40200145150110841823102004-18
50250160165125992023582404-18
652651801851451182223732408-18
802801952001601322424352808-18
1003002302351901562425003008-22
1253252702702201842626143208-26
1503503003002502112826743608-26
20040036036031027430281840012-26
25045042542537033032296945012-30
300500485485430389342114556016-30
350550550ˉ490448444128064016-34
400600610ˉ550505484145264016-34
450650660ˉ600555504154172020-34
500700730ˉ660610524167872020-41
600800840ˉ770718565187480020-41
700900955ˉ875815605ˉˉ24-48
80010001070ˉ990930645ˉˉ24-48
PN4.0MPa50250160ˉ1251002033712804-18
65280180ˉ1451202233912808-18
80310195ˉ1601352234553208-18
100350230ˉ1901602435513608-23
125400270ˉ2201882836284008-25
150450300ˉ2502183037084008-25
200550375ˉ32028238388546012-30
250650445ˉ38534542390656012-34
300750510ˉ450408464120364016-34
350850570ˉ510465524134164016-34
400950655ˉ585535584149272016-41
5001150755ˉ670612624ˉˉ20-48
6001350890ˉ795730625ˉˉ20-54
7001450995ˉ900835685ˉˉ24-54
80016501135ˉ1030960765ˉˉ24-58
主体外形和连接尺寸Main External and Connection Dimension
公称压力Nominal PressureSizeDimension(mm)
DNdLD(1)D(2)CgTtHWn-Ø
PN6.4MPa5050250175ˉ1351052634702804-23
6565280200ˉ1601302835202808-23
8080310210ˉ1701403035703208-23
100100350250ˉ2001683237003608-25
125125400295ˉ2402023637804008-30
150150450340ˉ2802403838504508-34
200200550405ˉ345300443103556012-34
250250650470ˉ400352483105064012-41
300300750530ˉ460412543147064016-41
350350850595ˉ525475603ˉˉ16-41
400400950670ˉ585525663ˉˉ16-48
5005001150800ˉ705640703ˉˉ20-54
6006001350930ˉ820750763ˉˉ20-58
PN10.0MPa5050250195ˉ1451122834903604-25
6565280220ˉ1701383235404008-25
8080310230ˉ1801483435734008-25
100100350265ˉ2101723835754008-30
125125400310ˉ2502104237445608-34
150150450350ˉ29025046380056012-34
200200550430ˉ36031254386056012-41
250250650500ˉ430382603105064012-41
300300750585ˉ500442704120864016-48
350350850655ˉ560298764ˉˉ16-54
400400950715ˉ620558804ˉˉ16-54


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