VICKERS電(dian)磁閥(fa)(fa)(fa)的(de)(de)(de)(de)用途電(dian)磁閥(fa)(fa)(fa)用于(yu)液體(ti)和氣體(ti)管(guan)(guan)(guan)路的(de)(de)(de)(de)開(kai)(kai)(kai)關(guan)控(kong)(kong)(kong)(kong)制(zhi)，是(shi)兩位DO控(kong)(kong)(kong)(kong)制(zhi)。一般用于(yu)小(xiao)型管(guan)(guan)(guan)道(dao)的(de)(de)(de)(de)控(kong)(kong)(kong)(kong)制(zhi)。電(dian)動(dong)(dong)(dong)閥(fa)(fa)(fa)用于(yu)液體(ti)、氣體(ti)和風系統(tong)(tong)管(guan)(guan)(guan)道(dao)介質流(liu)(liu)量的(de)(de)(de)(de)模擬量調(diao)節，是(shi)AI控(kong)(kong)(kong)(kong)制(zhi)。在大型閥(fa)(fa)(fa)門和風系統(tong)(tong)的(de)(de)(de)(de)控(kong)(kong)(kong)(kong)制(zhi)中也可以用電(dian)動(dong)(dong)(dong)閥(fa)(fa)(fa)做兩位開(kai)(kai)(kai)關(guan)控(kong)(kong)(kong)(kong)制(zhi)。電(dian)磁閥(fa)(fa)(fa)只能用作開(kai)(kai)(kai)關(guan)量，是(shi)DO控(kong)(kong)(kong)(kong)制(zhi)，只能用于(yu)小(xiao)管(guan)(guan)(guan)道(dao)控(kong)(kong)(kong)(kong)制(zhi)，常(chang)見(jian)于(yu)DN50及以下管(guan)(guan)(guan)道(dao)，往(wang)上就很(hen)少了。電(dian)動(dong)(dong)(dong)閥(fa)(fa)(fa)可以有AI反饋(kui)信號，可以由(you)DO或AO控(kong)(kong)(kong)(kong)制(zhi)，比(bi)(bi)較見(jian)于(yu)大管(guan)(guan)(guan)道(dao)和風閥(fa)(fa)(fa)等。1.開(kai)(kai)(kai)關(guan)形式電(dian)磁閥(fa)(fa)(fa)通(tong)過線圈驅(qu)動(dong)(dong)(dong)，只能開(kai)(kai)(kai)或關(guan)，開(kai)(kai)(kai)關(guan)時(shi)動(dong)(dong)(dong)作時(shi)間短(duan)。電(dian)動(dong)(dong)(dong)閥(fa)(fa)(fa)的(de)(de)(de)(de)驅(qu)動(dong)(dong)(dong)一般是(shi)用電(dian)機，開(kai)(kai)(kai)或關(guan)動(dong)(dong)(dong)作完成需要一定的(de)(de)(de)(de)時(shi)間模擬量的(de)(de)(de)(de)，可以做調(diao)節。2.工作性質電(dian)磁閥(fa)(fa)(fa)一般流(liu)(liu)通(tong)系數很(hen)小(xiao)，而且工作壓力差很(hen)小(xiao)。比(bi)(bi)如(ru)一般25口徑(jing)的(de)(de)(de)(de)電(dian)磁閥(fa)(fa)(fa)流(liu)(liu)通(tong)系數比(bi)(bi)15口徑(jing)的(de)(de)(de)(de)電(dian)動(dong)(dong)(dong)球閥(fa)(fa)(fa)小(xiao)很(hen)多

VICKERS電(dian)磁(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)和(he)安全(quan)閥(fa)(fa)(fa)(fa)(fa)為(wei)一體，組成先導(dao)式(shi)(shi)(shi)(shi)壓(ya)(ya)力(li)閥(fa)(fa)(fa)(fa)(fa)，該(gai)閥(fa)(fa)(fa)(fa)(fa)即是卸(xie)(xie)荷(he)(he)(he)閥(fa)(fa)(fa)(fa)(fa)又是安全(quan)閥(fa)(fa)(fa)(fa)(fa)，有時(shi)又是溢流閥(fa)(fa)(fa)(fa)(fa)．卸(xie)(xie)荷(he)(he)(he)時(shi)其(qi)控(kong)(kong)制(zhi)(zhi)油(you)(you)道(dao)(dao)(dao)貫穿各路(lu)換(huan)(huan)向閥(fa)(fa)(fa)(fa)(fa)，同(tong)(tong)前(qian)述(shu)卸(xie)(xie)荷(he)(he)(he)油(you)(you)道(dao)(dao)(dao)．當各路(lu)換(huan)(huan)向閥(fa)(fa)(fa)(fa)(fa)處于中(zhong)立位置時(shi)，卸(xie)(xie)荷(he)(he)(he)閥(fa)(fa)(fa)(fa)(fa)的控(kong)(kong)制(zhi)(zhi)油(you)(you)道(dao)(dao)(dao)(見圖1b和(he)圖2)貫穿各路(lu)換(huan)(huan)向閥(fa)(fa)(fa)(fa)(fa)并與(yu)(yu)油(you)(you)箱連通．卸(xie)(xie)荷(he)(he)(he)時(shi)，大(da)部分油(you)(you)液卸(xie)(xie)荷(he)(he)(he)，通道(dao)(dao)(dao)短，壓(ya)(ya)力(li)損失低．任一路(lu)閥(fa)(fa)(fa)(fa)(fa)換(huan)(huan)向工作，便(bian)切(qie)斷(duan)控(kong)(kong)制(zhi)(zhi)油(you)(you)道(dao)(dao)(dao)，油(you)(you)源來油(you)(you)就從換(huan)(huan)向閥(fa)(fa)(fa)(fa)(fa)進入執行(xing)元件工作，其(qi)工作壓(ya)(ya)力(li)大(da)小由導(dao)閥(fa)(fa)(fa)(fa)(fa)控(kong)(kong)制(zhi)(zhi)．此時(shi)系統壓(ya)(ya)力(li)為(wei)導(dao)閥(fa)(fa)(fa)(fa)(fa)調整壓(ya)(ya)力(li)．該(gai)種(zhong)卸(xie)(xie)荷(he)(he)(he)方式(shi)(shi)(shi)(shi)，即使換(huan)(huan)向閥(fa)(fa)(fa)(fa)(fa)路(lu)數增加(jia)(jia)，只是控(kong)(kong)制(zhi)(zhi)油(you)(you)道(dao)(dao)(dao)增加(jia)(jia)，卸(xie)(xie)荷(he)(he)(he)壓(ya)(ya)力(li)增加(jia)(jia)不(bu)大(da)，始終保(bao)持(chi)較(jiao)低卸(xie)(xie)荷(he)(he)(he)壓(ya)(ya)力(li)，此種(zhong)卸(xie)(xie)荷(he)(he)(he)方式(shi)(shi)(shi)(shi)多用(yong)于手動(dong)換(huan)(huan)向閥(fa)(fa)(fa)(fa)(fa)，卸(xie)(xie)荷(he)(he)(he)可靠．    VICKERS電(dian)磁(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)(又是安全(quan)閥(fa)(fa)(fa)(fa)(fa))的主閥(fa)(fa)(fa)(fa)(fa)按配合形式(shi)(shi)(shi)(shi)不(bu)同(tong)(tong)可分為(wei)三級(ji)(ji)(ji)同(tong)(tong)心(xin)(xin)(xin)、二(er)(er)級(ji)(ji)(ji)同(tong)(tong)心(xin)(xin)(xin)和(he)滑(hua)閥(fa)(fa)(fa)(fa)(fa)式(shi)(shi)(shi)(shi)三類(lei)．其(qi)中(zhong)滑(hua)閥(fa)(fa)(fa)(fa)(fa)式(shi)(shi)(shi)(shi)結構(gou)工作壓(ya)(ya)力(li)低，控(kong)(kong)制(zhi)(zhi)壓(ya)(ya)力(li)精度不(bu)高；三級(ji)(ji)(ji)同(tong)(tong)心(xin)(xin)(xin)結構(gou)雖成熟(shu)，目前(qian)應用(yong)較(jiao)廣(guang)，但與(yu)(yu)二(er)(er)級(ji)(ji)(ji)同(tong)(tong)心(xin)(xin)(xin)式(shi)(shi)(shi)(shi)比較(jiao)，不(bu)及二(er)(er)級(ji)(ji)(ji)同(tong)(tong)心(xin)(xin)(xin)式(shi)(shi)(shi)(shi)動(dong)作靈敏，規格相(xiang)同(tong)(tong)，行(xing)程相(xiang)同(tong)(tong)時(shi)，二(er)(er)級(ji)(ji)(ji)同(tong)(tong)心(xin)(xin)(xin)結構(gou)的通油(you)(you)能力(li)遠大(da)于三級(ji)(ji)(ji)同(tong)(tong)心(xin)(xin)(xin)結構(gou)；二(er)(er)級(ji)(ji)(ji)同(tong)(tong)心(xin)(xin)(xin)式(shi)(shi)(shi)(shi)控(kong)(kong)制(zhi)(zhi)壓(ya)(ya)力(li)穩定(ding)，加(jia)(jia)工工藝性好(hao)，二(er)(er)級(ji)(ji)(ji)同(tong)(tong)心(xin)(xin)(xin)式(shi)(shi)(shi)(shi)應用(yong)前(qian)景廣(guang)闊(kuo)，這里以二(er)(er)級(ji)(ji)(ji)同(tong)(tong)心(xin)(xin)(xin)結構(gou)，討論其(qi)結構(gou)尺(chi)寸設(she)計方法

1、防爆形式代號---防爆型用(yong)“F"，不(bu)是防爆不(bu)表示

2、控(kong)制(zhi)方式代號---常開用(yong)“K"，常閉不表(biao)示，自保持用(yong)“Z"

3、耐(nai)溫等代號(hao)---低溫用(yong)(yong)“L"，高(gao)溫用(yong)(yong)“G"，常(chang)溫不(bu)表示

4、結(jie)構形式(shi)(shi)(shi)代號---直動式(shi)(shi)(shi)用(yong)(yong)“0"，分步直動式(shi)(shi)(shi)用(yong)(yong)“3"，導式(shi)(shi)(shi)用(yong)(yong)“5"

5、連接(jie)方式(shi)代號---內螺紋用(yong)“1"，外(wai)螺紋用(yong)“2"，法(fa)蘭用(yong)“4"，焊(han)接(jie)用(yong)“6"，活接(jie)用(yong)“7"卡箍用(yong)“8"，卡套用(yong)“9"，

6、公稱通徑的(de)大小DN(mm)

7、耐壓(ya)等代(dai)號---低(di)壓(ya)-0.1-1.6MPa不(bu)表(biao)示，中壓(ya)2.0-6.4MPa用“M"，高壓(ya)6.5MPa-99MPa用“H"，高壓(ya)100MPa以上(shang)用“G"

8、閥體(ti)材質代號---鑄鐵用(yong)“Z"鑄鋼(gang)用(yong)“C"，不銹鋼(gang)304用(yong)“P"，316用(yong)“R"，316L用(yong)“RL"，鋁合金用(yong)“L"，黃銅(tong)用(yong)“T"，聚四氟用(yong)“F"，聚丙烯用(yong)“J"，PVC用(yong)“S"，CPVC用(yong)“SC"

9、附(fu)加(jia)功(gong)能代號(hao)---帶信號(hao)反饋功(gong)能用(yong)“X"，帶手(shou)動功(gong)能用(yong)“S"，帶止回功(gong)能用(yong)“Z"，快速緊(jin)急(ji)切斷帶手(shou)動復(fu)位用(yong)"Q"

10、電源電壓代號---直(zhi)流電源24V用“D"，交流電源220V用“A"其他電源用“V"

DGMFN-3-Y-A2W-B2W-41 

DGMFN-3-Y-A2W-B2W-30 

DGMFN-3-Y-A2W-41-B2W-30

DGMFN-3-Y-A2W-B2W-40 

DGMFN-3-X-A2W-40 

DGMFN-3-Y-A2W-40 

DGMDC-5-Y-PM-30 

DGMPC-5-BAK-30 

DGMPC-5-ABK-30 

DGMPC-7-ABK-BAK-10 

DGMPC-5-ABN-30 

DGMPC-5-ABN-BAN-30 

DGMPC-3-ABM-BAM-40 

DGMPC-3-ABK-BAK-40 

DGPC-06-DADB-51 

DGMPC-5-ABK-BAK-30 

DGMFN-3-Y-A2W-B2W-40
DGMFN-3-X-A2W-B2W-40
DGMPC-3-ABM-BAM-40
DG4V-3-6C-M-U-H7-60
DG4V-3-2C-M-U-H7-60
DG4V-3-2A-M-U-H7-60
DGMX1-3-PP-BW-B-40