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O形圈属于挤压密封，挤压型密封结构的基本特点依靠密封件发生弹xing变形、在密封接触面上造成接触压力，当

接触压力大于被密封介质的内压时，则起到密封作用，反之导致渗漏。两片式球阀的左、右端体为金属对金属

接触，属于静态密封结构，为了减小或消除它们之间的密封面间隙，在设计时选择O形圈作密封元件，当介质压

力较小时呈静止状态，所需密封力很小，此时靠装配时的预紧力在O形圈弹力的作用下，即可保证左、右端体密

封；当介质压力不断升高时，密封比压也随着增大，O形圈骤然膨胀，此时O形圈有效地阻止了两端缝隙间的泄

漏点，球阀的密封xing能因而得到保证

当球阀作启、闭动作时，无论采用何种驱动方式，阀杆都要作旋转运动，为防止介质通过中孔间隙窜出，在阀

杆处勾一凹槽嵌入O形圈虽然阀杆作往复转动90，但由于O形圈的摩擦小和良好的自润滑xing，它们相互

配合起到良好的密封效果。为了保证阀座与阀芯形成良好的密封副，同样在阀座内加工一凹槽，把O形圈安装

其中（如图4）当阀腔介质压力升高时，在弹huang力的推动下，阀座向阀芯产生位移，在O形圈高弹xing能的作

用下，保证了管道内腔的密封xing，此时O形圈在管道中启动态密封效果，前两种结构形式中，O形圈同属于动
态密封结构。

BBV20020001K高压方形球阀
BBV20040001K
BBV20060001K 
BBV20080001K
BBV20120001KSMK20-06S-PG-C6F（一站式）
BBV20160001K
BBV20160001HSMK20-06S-PG-C6F（一站式）
BBV20200001K
BBV20240001K
高压方形阀体球阀－BBV型
O型圈端面密封连接－公螺纹(ISO 8434-3)
BBV2B040001M高压方形阀体球阀-BBV 型
BBV2B050001M
BBV2B060001M 
BBV2B080001M 
BBV2B100001M 
BBV2B120001M 
BBV2B160001M
高压方形阀体球阀-BBV 型
24度锥连接-轻系列(ISO 8434-1)
BBV2DN0406L0001M
BBV2DN0608L0001M西德福stauff高压球阀BBV2DN0608L0000M
BBV2DN0810L0001M
BBV2DN1012L0001M
BBV2DN1315L0001M
BBV2DN1318L0001M
BBV2DN2022L0001M
BBV2DN2528L0001M
BBV2DN2535L0001M
BBV2DN2542L0001M
西德福stauff高压球阀BBV2DN0608L0000M
BBV2DN0408S0001M
BBV2DN0610S0001M阀体.球体.阀杆.碳钢材质
BBV2DN0812S0001M 
BBV2DN1014S0001M 
BBV2DN1316S0001M 
BBV2DN1320S0001M 
BBV2DN1620S0001M
BBV2DN2025S0001M
BBV2DN2530S0001M
BBV2DN2538S0001M 
FBV2G200001M
FBV2G240001M
FBV2G320001M
高压锻造阀体球阀-BBV型NPTmu螺纹(ANSI B1.20.1)
FBV20200001M
FBV20240001M
FBV20320001M
高压锻造阀体球阀－FBV型UN/UNFmu螺纹(SAE J 514)
FBV21200001M
FBV21240001M
FBV21320001M
HBV2DN0610S00B1M德国原装正品西德福高压球阀HBV2DN0610S00B1M
HBV2DN0408S00B1M 
HBV2DN0812S00B1M
HBV2DN1014S00B1M 
HBV2DN1316S00B1M
HBV2DN1320S00B1M 
HBV2DN2025S00B1M 
HBV2DN2530S00B1M
原装西德福高压球阀BBV22120001M
BBV22160001M
BBV22X080001M
BBV22X120001M
BBV22X160001M
高压锻造阀体球阀－ FBV22/23 型
3000 PSI SAE 对开法兰连接 (ISO 6162-1)
FBV22200001M
FBV22240001M
FBV22320001M
FBV22X200001M
FBV22X240001M
FBV22X320001M
高压锻造阀体球阀 -FBV22/23 型
6000 PSI SAE 对开法兰连接(ISO 6162-2)
FBV23200001M
FBV23240001M
FBV23320001M
FBV23X200001M
FBV23X240001M
FBV23X320001M
BBV2EM080001M
BBV2EM120001M 
BBV2EM160001M
3000 PSI(代码61)-UNC螺纹
BBV2E080001M 
BBV2E120001M
BBV2E160001M
高压方形阀体球阀 -BBV22/23 型
6000 PSI SAE 对开法兰连接 (ISO 6162-2)
6000 PSI(代码62)ISO公制螺纹
BBV2SM080001M
BBV2SM120001M(代码62)ISO公制螺纹
BBV2SM160001M
6000 PSI(代码62)UNC螺纹
BBV2S080001M
BBV2S120001M
BBV2S160001M
高压锻造阀体球阀－FBV型2通球阀
3000 PSI SAE 法兰连接9ISO 6162-1)
3000 PSI(代码61)ISO公制螺纹
FBV2EM240001M
FBV2EM200001M
FBV2EM320001M(代码61)ISO公制螺纹
FBV2EM400001M
3000 PSI (代码61)UNC螺纹
FBV2E200001M(代码61)UNC螺纹）
FBV2E240001M
FBV2E320001M
FBV2E400001M
BBV2D(1-2)080001M
BBV2D(1-2)120001M
BBV2D(1-2)160001M
BBV2D(1-2)200001M 
BBV2D(1-2)240001M
BBV2D(1-2)320001M 
BBV2D(1-2)400001M 
BBV2D1480001M
400bar/5800 PSI系列(ISO 6164)ISO公制螺纹
BBV2D(1-2)080001M
BBV2D(1-2)120001M 
BBV2D(1-2)160001M
BBV2D(1-2)200001M 
BBV2D(1-2)240001M 
BBV2D(1-2)320001M 
BBV2D(1-2)400001M 
BBV2D2480001M 
BBV2D2640001M
KHZ27M080001M
KHZ27M120001M
KHZ27M160001M
KHZ27M200001M高压方形阀体球阀
KHZ27M240001M
KHZ27M320001M
3000 PSI系列(代码61)UNC螺纹
KHZ27080001M
KHZ27120001M
KHZ27160001M
KHZ27200001M 
KHZ27240001M
KHZ27320001M
KHZ28M080001M法兰连接(ISO 6162-2)
KHZ28M120001M
KHZ28M160001M
KHZ28M200001M
KHZ28M240001M
KHZ28M320001M
KHZ28080001M西德福球阀
KHZ28120001M
KHZ28160001M
KHZ28200001M
KHZ28240001M
KHZ28320001M
球阀德国西德福高压方形阀体球阀BBV25060001M
BBV25080001M
BBV25120001M
BBV25160001M
BBV25200001M
BBV25240001M
BBV25320001M
BBV35040001M板式安装球阀
BBV35060001MBBV35型L形通孔3通
BBV35080001M
BBV35120001M 
BBV35160001M
BBV35200001M
BBV35240001M
BBV35320001M
BBVS35040001M
BBVS35060001M多通球阀
BBVS35080001M3通板式安装
BBVS35120001M 
BBVS35160001M
BBVS35200001M
BBVS35240001M
BBVS35320001M
高压方形阀体球阀 CBV型/多通球阀
CBV3G020001M
CBV3G040001M
CBV3G060001M
西德福球阀BBV2G060001M
CBV3G080001M
CBV3G120001M
CBV3G160001M
CBV3G200001M
CBV3G240001M
CBV3G320001M
CBV30020001KNPT母螺纹(ANSI B1.20.1)
CBV30040001K
CBV30060001K
CBV30080001K
CBV30120001K
CBV30160001K
CBV30200001K
CBV30240001K
CBV30320001K




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