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          VQ640F, VQ670 pneumatic V-ball
          Product Name:
          VQ640F, VQ670 pneumatic V-ball
          Description:

          氣動V型球閥 VQ640F、VQ670

          V型球閥的外形尺寸PN16-40 

          公稱通徑DN 25 40 50 65 80 100 125 150 200 250 300 350 400
          法蘭式L 102 114 124 165 165 194 210 229 200 240 - - -
          對夾式L 50 60 75 85 100 115 135 160 200 240 - - -
          H 200 250 225 235 260 270 320 340 3960 420 510 600 700

          結(jié)構(gòu)特點

          1、V型球閥采用蝶形彈簧或圓柱彈簧加載的可動閥座結(jié)構(gòu),閥座與V型球芯不產(chǎn)生卡阻或脫離等問題,密封可靠,使用命長;

          2、V型切口球芯與閥座間有剪切作用,特別適用于含纖維、微小固體顆粒、料漿等介質(zhì);

          3、球體與閥座密封根據(jù)工況不同,可分別采用軟密封、噴焊鎳基合金(硬度大于HRC60)、超音速噴涂鎢鈷合金(硬度大于HRC70)及特種硬化材料等多種先進工藝,適用各種苛刻工況,軟密封適用200℃以下工況,硬密封碳鋼不超過425℃,不銹鋼不超過600℃。

          4、蝸輪傳動具有精確調(diào)節(jié)和可靠定位功能,流量特性近似等百分比,可調(diào)范圍大,調(diào)節(jié)精度高;

          5、全開時流通能力大,壓力損失小,介質(zhì)不會沉積在閥體中腔。

          型號、材料及主要參數(shù)

          產(chǎn)品型號 Bv40F-16C
          Bv70F-16C
          Bv40F-16P
          Bv70F-16P
          Bv40F-16R
          Bv70F-16R
          Bv40Y-16C
          Bv70Y-16C
          Q40Y-16P
          Q70Y-16P
          QV40Y-16R
          Qv70-16R
          Qv40F-150LbC
          Qv70F-150LbC
          DYQ40F-6P-64P DYQ40F-6R-64R BQ40Y-6C-64 BQ40Y-6P-64P BQ40Y-6R-64R
          閥體 WCB CF8 CF8M WCB CF8 CF8M
          球體 CF8 CF8 CF8M CF8氮化 CF8氮化 CF8M氮化
          閥桿/固定軸 2Cr13 304 316 2Cr13 304 316
          密封圈 PTFE/RPTFE/PPL/尼龍 2Cr13 CF8+STL CF8M+STL
          端蓋 16Mn 304氮化 3164氮化 16Mn 304氮化 316氮化
          蝸輪V型球閥 Qv后插入“3”表示,示例:BQ340F-16C Qv后插入“3”表示,示例:DYQ340F-16C
          氣動V型球閥 Qv后插入“6”表示,示例:BQ640F-10C Qv后插入“6”表示,示例:DYQ640F-10C
          電動V型球閥 Qv后插入“9”表示,示例:DYQ940F-16P DQv后插入“9”表示,示例:DYQ940F-16P


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