CKD二位五通防爆型先導(dǎo)式電磁閥，日本CKD先導(dǎo)式電磁閥防爆電磁閥

  CKD二位五通防爆型先導(dǎo)式電磁閥/CKD防爆電磁閥
                                喜開(kāi)理二位五通防爆型先導(dǎo)式電磁閥利用過(guò)程本身的壓力或壓差來(lái)驅(qū)動(dòng)控制閥動(dòng)作，也可用．溫包式檢測(cè)元件將溫度轉(zhuǎn)換為壓力，然后驅(qū)動(dòng)控制閥動(dòng)作。其特點(diǎn)是結(jié)構(gòu)簡(jiǎn)單、操作方便，但會(huì)引起壓降，造成出口壓力的非線性，通常，穩(wěn)壓精度在10％一20％。帶指揮器作用的自力式控制閥可適用于小壓降和大流量的自力式控制場(chǎng)合，出口壓力變化范圍可小于設(shè)定壓力的10％?？刂崎y具有節(jié)能功能，因此，在一些控制要求不高的場(chǎng)合被廣泛應(yīng)用。自力式控制閥執(zhí)行機(jī)構(gòu)膜頭的輸入信號(hào)是控制閥前或閥后的壓力或閥兩端的壓差，或經(jīng)溫包轉(zhuǎn)換后的壓力信號(hào)。執(zhí)行機(jī)構(gòu)的結(jié)構(gòu)類似氣動(dòng)薄膜執(zhí)行機(jī)構(gòu)。控制閥對(duì)被控介質(zhì)有一定要求，例如，自力式壓力控制閥的被控介質(zhì)溫度應(yīng)低于某一規(guī)定值，介質(zhì)應(yīng)干凈，當(dāng)介質(zhì)溫度較高時(shí)，例如，用于蒸汽或150℃以上的液體時(shí)，應(yīng)設(shè)置冷凝器，使進(jìn)入執(zhí)行機(jī)構(gòu)比較器內(nèi)的介質(zhì)溫度低于規(guī)定值。喜開(kāi)理二位五通防爆型先導(dǎo)式電磁閥在系統(tǒng)中起安全保護(hù)作用。當(dāng)系統(tǒng)壓力超過(guò)規(guī)定值時(shí)，安全閥汀開(kāi)，將系統(tǒng)中的一部分氣體排入大氣，使系統(tǒng)壓力不超過(guò)允許值，從而保證系統(tǒng)不因壓力過(guò)高而發(fā)生事故。安全閥又稱溢流閥。圖示為安全閥的幾種典型結(jié)構(gòu)形式。圖a為活塞式安全閥，閥芯是一平板。氣源壓力作用在活塞A上，當(dāng)壓力超過(guò)由彈簧力確定的安全值時(shí)，活塞A被頂開(kāi)，一部分壓縮空氣即從閥口排入大氣；當(dāng)氣源壓力低于安全值時(shí)，彈簧驅(qū)動(dòng)活塞下移，關(guān)閉閥口。圖b和c分別為球閥式和膜片式安全閥，工作原理與活塞式*相同。這三種安全閥都是彈簧提供控制力，調(diào)節(jié)彈簧預(yù)緊力，即可改變安全值大小，故稱之為直動(dòng)式安全閥。
                                　　圖d為先導(dǎo)式安全閥，以小型直動(dòng)閥提供控制壓力作用于膜片上，膜片上硬芯就是閥芯，壓在閥座上。當(dāng)氣源壓力A大于安全壓力時(shí)，閥芯開(kāi)啟，壓縮空氣從左側(cè)輸出孔排入大氣。膜片式安全閥和先導(dǎo)式安全閥壓力特性較好、動(dòng)作靈敏；但zui大開(kāi)啟力比較小，即流量特性較差。實(shí)際應(yīng)用時(shí)，應(yīng)根據(jù)實(shí)際需要選擇安全閥的類型，并根據(jù)zui大排氣量選擇其通徑。

CKD二位五通防爆型先導(dǎo)式電磁閥，日本CKD先導(dǎo)式電磁閥防爆電磁閥

 4KA410-10-AC220V
                                4KA410-10-DC24V
                                4KB210-08-AC220V
                                4KB210-06-AC220V
                                4KB210-08-DC24V
                                4KB210-06-DC24V
                                4KB219-00-AC220V
                                4KA219-00-DC24V
                                4KB218-00-AC220V
                                4KB218-00-DC24V
                                4KB110-06-AC220V
                                4KB119-00-AC220V
                                4KB118-00-AC220V
                                4KB110-06-DC24V
                                4KB119-00-DC24V
                                4KB118-00-DC24V
                                4KB310-08-AC220V
                                4KB310-10-AC220V
                                4KB319-00-AC220V
                                4KB320-08-AC220V
                                4KB320-10-AC220V
                                4KB410-10-AC220V
                                4KB410-15-AC220V
                                4KB419-00-AC220V
                                4KB420-10-AC220V
                                4KB310-08-DC24V
                                4KB310-10-DC24V
                                4KB319-00-DC24V
                                4KB320-08-DC24V
                                4KB320-10-DC24V
                                4KB410-10-DC24V
                                4KB410-15-DC24V
                                APK11-20A-B2E-DC24V
                                ADK21-32F-03A-DC24V
                                ADK21-40A-03A-DC24V
                                APK21-32F-03A-DC24V
                                APK21-40A-03A-DC24V
                                AD11-25A-03A-DC24V
                                AD11-15A-02C-DC24V
                                AD11-20A-B2E-DC24V
                                ADK11E4-20A-03T-DC24V
                                ADK11E4-25A-03N-DC24V
                                ADK11E4-15A-05P-DC24V
                                ADK11-15A-03A-AC110V
                                ADK11-25A-02C-AC110V
                                ADK11-20A-02E-AC110V
                                APK11-15A-02C-AC110V
                                APK11-25A-03C-AC110V
                                APK11-20A-B2E-AC110V
                                ADK21-32F-03A-AC110V
                                ADK21-40A-03A-AC110V
                                APK21-32F-03A-AC110V
                                APK21-40A-03A-AC110V
                                AD11-25A-03A-AC110V
                                AD11-15A-02C-AC110VAMD21-10BUS-8
                                AB31-02-3-B2E-DC24V
                                AB41-02-3-B2E-DC24V
                                MS-00-RL
                                RGIT063-008270-S1F1-WSN032YL
                                IX-112-04-12-K35
                                IX-102-04-13-K35
                          
                                M4SA010-M3-6-3
                                AX4075G
                                SSG-L-50-20-T2H-D
                                SSG-L-25-30-T2H-D
                                SSD-L-20-15-T2H-D
                                SSD-L-25-15-T2H-D
                                CMK2-C-CA-25-100-T0H-D
                                C1010-8
                                R1000-6-B3
                                M4GA220-06-E2-9-3
                                SD3025-B-07-B
                                M3000-10-B
                                SSG-L-50-20-T0H-D
                                SSG-L-25-30-T0H-D
                                SSD-L-20-15-T0H-D
                                SSD-L-25-15-T0H-D
                                4GB119-00-E0-3
                                4KA110-M5-D2-DC24V
                                SRG-00-16B-50-MOH-D-A
                                RV3D30-90-45
                                W3000-8-F-B3
                                4F230-08-AC220V
                                3PB110-06-3
                                R2000-8-B3
                                L4000-10-LL-B
                                GFLB21-2-5-B2C-3
                                IAGD3-SEAL-L35-FL-265692
                                AD11-20A-B2E-AC110V
AB31-02-6-AC220V SSD-KL-100-80-T2H-D-N
                                AP11-10A-B2HA-AC200V
                                AB41-02-6-02E-AC200V
                                SCA2-LB-100B-600-TY
                               
                                AP11-15A-02C-AC200V
                                AP11-20A-02C-AC200V
                                AP11-10A-02C-AC200V
                                4KA210-06-B-AC200V 
                                WFK5027-15   
                                SW-M3V
                                4F520-15-AC200V
                                4F720-25-AC200V
                                R8000-20-T8
                                GWS12-15
                                M8000-20-F1
                                M8000-20-F1S    

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