德國(guó)BURKERT兩位兩通氣動(dòng)球閥,進(jìn)口BURKERT2655型球閥
德國(guó)BURKERT兩位兩通氣動(dòng)球閥的運(yùn)動(dòng)曲線，2為排氣閥的運(yùn)動(dòng)曲線。縱坐標(biāo)代表升程h，橫坐標(biāo)為曲軸的轉(zhuǎn)角（或時(shí)間）。從圖中可以看出氣閥的開(kāi)啟和關(guān)閉都是比較快的。并且氣閥的開(kāi)啟速度總是要高于氣閥的關(guān)閉速度，這是因?yàn)闅忾y的開(kāi)啟過(guò)程是在活塞速度很高的階段進(jìn)行的，而氣閥的關(guān)閉卻是在活塞已位移到接近止點(diǎn)位置，活塞速度已經(jīng)很低的情況下進(jìn)行的。氣閥在啟閉過(guò)程中，閥片、升程限制器及閥座都將受到交變沖擊載荷作用，很容易造成磨損和破壞。
德國(guó)BURKERT兩位兩通氣動(dòng)球閥關(guān)閉的力以及操縱主閥和導(dǎo)閥的能量可能來(lái)自系統(tǒng)介質(zhì)、一個(gè)外部能源，或者來(lái)自這兩者。當(dāng)系統(tǒng)壓力開(kāi)始過(guò)一個(gè)整定的極限值時(shí)，導(dǎo)閥開(kāi)啟，排放少量介質(zhì)，除去或減少主閥閥瓣的關(guān)閉力而讓系統(tǒng)介質(zhì)迫使主閥開(kāi)啟；當(dāng)系統(tǒng)壓力降低以后，導(dǎo)閥關(guān)閉，重新產(chǎn)生關(guān)閉力，或者將開(kāi)啟力消除，主閥關(guān)閉，按照這樣的開(kāi)啟和關(guān)閉模式，能夠在閥門開(kāi)啟之前保持一個(gè)大的關(guān)閉力。因此，導(dǎo)式安全閥在運(yùn)行壓力接近整定壓力的情況下也能保持高度的密封性。
026581 0211-B-02,0-FF-MS-GM82-230/56-08   * JF01                               
026582 0341-D-20,0-BB-MS-GM85-0                                                
026606 0643-C-01,5-BB-MS-GM82-024/UC-07   * PD27                               
026640 0200-A-02,0-FF-VA-GM81-220/50-04   * NA01                               
026800 0341-D-20,0-BB-MS-GM85-0           * EC05+FA02                          
026881 0341-D-12,0-BB-MS-GM84-0                                                
026903 0263-A-10,0-FF-MS-GM83-2                                                
026935 0256-A-08,0-BB-MS-GM83-230/56-10   * AF12+JF01+MA02                     
026944 0263-A-12,0-FF-VA-GM84-2                                                
027011 0341-D-08,0-BB-MS-GM82-0                                                
027039 0341-D-12,0-BB-MS-GM84-0           * EC05                               
027325 0341-D-25,0-BB-MS-GM86-0           * EC05                               
027328 0263-A-12,0-BB-VA-GM84-2                                                
027342 0263-A-10,0-BB-MS-GM83-1                                                
027428 0263-A-12,0-AA-VA-GM84-2                           
：\39526590\39529839/39529830轉(zhuǎn)8005或者8002
//
\39529831\39529839\39529839-8007或者8008
/
公司;m.stsicn.com
；單榮兵/余娟
德國(guó)BURKERT兩位兩通氣動(dòng)球閥,進(jìn)口BURKERT2655型球閥
027549 0262-B-10,0-EA-MS-GM83-3           * NA07                               
027558 0262-B-12,0-EF-VA-GM84-3                                                
027695 0263-A-12,0-FF-MS-GM84-2                                                
027770 0262-I-12,0-BB-MS-GM84-4                                                
027831 0341-D-20,0-BB-MS-GM85-0           * EC05                               
027881 0263-A-12,0-BB-MS-GM84-2                                                
027895 0263-A-10,0-AA-MS-0000-2           * LF01                               
027929 0263-A-10,0-AA-MS-GM83-2                                                
027963 0263-A-10,0-FF-MS-GM83-1                                                
027987 0263-B-12,0-AA-MS-GM84-3                                                
028023 0263-A-12,0-AA-MS-GM84-2                                                
028037 0263-B-10,0-FF-MS-GM83-3                                                
028151 0262-A-12,0-EA-VA-GM84-2                                                
028210 0262-B-12,0-EF-MS-GM84-3           * NA07                               
028300 0263-B-12,0-AA-MS-0000-3                                                
028496 0262-B-12,0-EA-VA-GM84-3                                                
028539 0262-A-10,0-BB-MS-GM83-2           * LF01                               
028686 0262-B-12,0-EA-MS-GM84-3           * NA07                               
028705 0262-B-25,0-BB-MS-GM86-3                                                
028762 0262-A-12,0-FF-VA-GM84-2                                                
028827 0263-B-12,0-FF-MS-GM84-3                                                
028926 0263-A-10,0-AA-MS-0000-2                                                
028932 0262-A-10,0-BB-MS-0000-2