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Tianjin BrastValve  Co.,Ltd.

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邮箱:blstvalve@163.com

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Qv系列金属硬密封球阀

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Qv系列金属硬密封球阀

  • 所属分类:球阀

  • 今晚必中二码次数:
  • 今晚必中二码日期:2019/06/04
  • 在线询价
  • 详细介绍

球阀往往是靠阀后或阀前阀座达到单面密封的,只有极个别特殊场合才使用阀前、阀后双面密封。因此,在通常情况下,只有一半球面(甚至更少)起密封作用于是产生了V形球球阀。V形球球阀优点。

1、球体重量轻,这对于节约材料尤其是贵重金属材料有不可低估的经济效益。
2、精加工表面积小,减少加工时间。
3、能有效地减小球阀启动时的质性力。
主要用于输送纤维和纸浆等介质。球体上的V形缺口能起切断机作用,以避免纤维物料粘在球体、阀体和阀座之间,另外v形球还广泛用来调节流量。
Ball valves get single-face sealed often upon the seat ring of either after-valve or before-valve and,only in very few of special cases,both before-valve and
After-valve dual-faces are sealed Hence,the ball valve of a V-type ball is so formed as with only half of the sphere(even less)acting at sealing The advantages of the said ball valve:
1、Light,offering an economic benefit which must not be underrate for saving the material,especially the noble metal materials.
2、Small precisely processed surface area,reducing the processing time 
3、Can effectively reduce the inertia force of the ball valve at starting
Used to transport fiber and paper pulp etc media The V-type cut on the ball can act as cut-0ff so as to prevent fiber material from adhering in between ball body and seat ring and the V-type ball cal also be used for the flow adjustmen

Qv47F/Qv347F/Q647Y/Qv947Y系列




金属硬密封球阀金属硬密封球阀

主要连接尺寸及重量Main connection dimensions and weight

公称通径DN标准值Standard value参考值Reference
DcLL1DD1D2bfZ-dHH1BW(kg)
VQ347VQ647VQ947VQ347VQ647VQ947
DN(mm)PN1.6MPa
5060124621601251001634-1822524836592400111316
657514572.51801451201834-18235255375100400131518
808916582.51951601352038-18260270380108400151720
100113194972151801552038-18270278390117400171923
1251402101052452101852238-18320335405140455222528
150164229114.52802402102438-23340358120177455303640
200205243121.533529526526312-23390405240200700606875
250259297148.540535532030312-2642044924025270090100110
30030033816946041037530412-23510550605270700180205207
mmPN2.5MPa
5060124621601251002034-1822524836592400111316
657514572.51801451202238-18235255375100400131518
808916582.51951601352238-18260270380108400151720
100113194972301901602438-23270278390117400182225
1251402101052702201882838-26320335405140455232632
150164229114.53002502183038-26340358120177455405660
200205243121.536031027834312-26390405240200700627079
250259297148.542537033236312-3042044924025270093105120
30030033816948543039040416-30510550605270700190220225
mminchClass150
5026012462152120.59216.024-1922524836592400111316
652 1/27514572.5178139.510517.524-19235255375100400131518
8038916582.5190152.512719.524-19260270380108400151720
100411319497229190.515724.028-19270278390117400182225
125514021010525421618624.028-22320335405140455232632
1506164229114.5278241.521625.528-22340358120177455405660
2008205243121.5343298.527029.028-22390405240200700627079
25010259297148.540636232430.5212-2542044924025270093105120
3001230033816948343238132.0212-25510550605270700190220225








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