阿斯卡ASCO止回阀是指依靠介质本身流动而自动开、闭阀瓣，用来防止介质倒流的阀门，又称逆止阀、单向阀、逆流阀、和背压阀。止回阀属于一种自动阀门，其主要作用是防止介质倒流、防止泵及驱动电动机反转，以及容器介质的泄放。
止回阀(Check Valve)：按结构划分，可分为升降式止回阀、旋启式止回阀和蝶式止回阀三种。升降式止回阀可分为立式和直通式两种。旋启式止回阀分为单瓣式、双瓣式和多瓣式三种。蝶式止回阀为蝶式双瓣、蝶式单瓣、以上几种止回阀在连接形式上可分为螺纹连接、法兰连接、焊接和对夹式连接四种。
止回阀( Check Valve)：是能自动阻止流体倒流的阀门。止回阀的阀瓣在流体压力作用下开启，流体从进口侧流向出口侧。当进口侧压力低于出口侧时，阀瓣在流体压差、本身重力等因素作用下自动关闭以防止流体倒流。
止回阀(Check Valve)：一般分为升降式、旋启式、蝶式及卧式等四种类型。
升降式止回阀的结构一般与截止阀相似，其阀瓣沿着通道中线作升降运动，动作可靠，但流体阻力较大，适用于较小口径的场合。升降式止回阀可分为直通式和立式两种。直通式升降止回阀一般只能安装在水平管路，而立式升降止回阀一般就安装在垂直管路。
旋启式止回阀的阀瓣绕转轴作旋转运动。其流体阻力一般小于升降式止回阀，它适用于较大口径的场合。旋启式止回阀根据阀瓣的数目可分为单瓣旋启式、双瓣旋启式及多瓣旋启式三种。单瓣旋启式止回阀一般适用于中等口径的场合。大口径管路选用单瓣旋启式止回阀时，为减少水锤压力，采用能减小水锤压力的缓闭止回阀。双瓣旋启式止回阀适用于大中口径管路。对夹双瓣旋启式止回阀结构小、重量轻，是一种发展较快的止回阀；多瓣旋启式止回阀适用于大口径管路。
阿斯卡ASCO止回阀是指依靠介质本身流动而自动开、闭阀瓣，用来防止介质倒流的阀门，又称逆止阀、单向阀、逆流阀和背压阀。止回阀属于一种自动阀门，其主要作用是防止介质倒流、防止泵及驱动电动机反转，以及容器介质的泄放。止回阀还可用于给其中的压力可能升至超过系统压的辅助系统提供补给的管路上。止回阀主要可分为旋启式止回阀（依重心旋转）与升降式止回阀（沿轴线移动）。
这种类型的阀门的作用是只允许介质向一个方向流动，而且阻止反方向流动。通常这种阀门是自动工作的，在一个方向流动的流体压力作用下，阀瓣打开；流体反方向流动时，由流体压力和阀瓣的自重合阀瓣作用于阀座，从而切断流动。
其中止回阀就属于这种类型的阀门，它包括旋启式止回阀和升降式止回阀。旋启式止回阀有一介铰链机构，还有一个像门一样的阀瓣自由地靠在倾斜的阀座表面上。为了确保阀瓣每次都能到达阀座面的合适位置，阀瓣设计在铰链机构，以便阀瓣具有足够有旋启空间，并使阀瓣真正的、全面的与阀座接触。阀瓣可以全部用金属制成，也可以在金属上镶嵌皮革、橡胶、或者采用合成覆盖面，这取决于使用性能的要求。旋启式止回阀在*打开的状况下，流体压力几乎不受阻碍，因此通过阀门的压力降相对较小。升降式止回阀的阀瓣坐落位于阀体上阀座密封面上。此阀门除了阀瓣可以自由地升降之外，其余部分如同截止阀一样，流体压力使阀瓣从阀座密封面上抬起，介质回流导致阀瓣回落到阀座上，并切断流动。根据使用条件，阀瓣可以是全金属结构，也可以是在阀瓣架上镶嵌橡胶垫或橡胶环的形式。像截止阀一样，流体通过升降式止回阀的通道也是狭窄的，因此通过升降式止回阀的压力降比旋启式止回阀大些，而且旋启式止回阀的流量受到的限制很少。
美国ASCO JOUCOMATIC公司是世界500强之一的美国艾默生集团成员，是一家主要生产和销售流体控制阀以及气动控制元件的跨国公司，具有100多年的生产技术经验，在拥有超过30家工厂，为客户提供超过23,000的流体控制产品。ASCO旗下拥有众多品牌：等都是ASCO的成员，其中ASCO/RED HAT，SIRAI品牌包括通用型产品及部分适用于特殊工矿的产品，可控制普通介质。GENERAL CONTROL为燃烧系列阀，介质可为燃油等。SCIENTIFIC是微型阀适用于医疗器械及其他分析产品行业。JOUCOMATIC是专业的气动控制产品的品牌，而TRI-POINT为压力温度开关产品。
角座阀、电磁阀产品，气动元件，比例气动产品和用在微电脑通讯的系统，如阀岛、阀门连接系统、简单多线电缆的板快和连接器等等。
ASCO所有产品按照标准设计和生产，电磁阀产品可满足各种应用的需要，控制不同液态及气态流体，并提供广泛的选择：其介质可以是易燃、易爆或腐蚀性的；压力可达到150巴；温度可以从-50C到300C；口径从1/8英寸至6英寸，产品包括普通型、防爆型、手动复位、本安型、滑动式、长寿型、蒸汽/热水及气控阀。其出色的防爆性能广泛应用于石化、电厂等行业。同时，根据不同的产品也适用于其他行业如：环保和水处理以及医疗设备仪器等相关OEM配套等等。在气动控制产品方面，ASCO JOUCOMATIC能够设计出一些特别的气动元件以满足各种自动控制的需要。同时，为了适应电子化的要求，也提供比例气动产品和用在微电脑通讯的系统，如阀岛、阀门连接系统、简单多线电缆的板快和连接器等等。
型号大全：
347P01 2347PAG1HNM0 DC24VEF6805P2PTEF6809CMGB
WT8551A1MSEF6805P2PVEF6809CMGBTCS
ER90A016EF6805P2PV/WIC480EF6809CN
SCB210DB9BN110/50EF6805P6PDC89EF6809E8M84
52100005EF6805R2PEF6809ECMB
400425-117JEF6805R2P-D091EF6809ECMB/B
SCG53LB001MSEF6805R2P-SGS86EF6809ECMBB
SCG531B001MS 220VACEF6805R2P/D091EF6809ECMG-B
8210G94/220VACEF6805R2P1EF6809ECMGB
8320G184 238610-032D110VAC/50HZEF6805R2PAEF6809EFN
HT8316G64/120VDCEF6805R2PD091EF6809EM
SCG551B401MO AC220VEF6805R2PSGS86EF6809EP
57000014 DC24VEF6805R2PTEF6809F
JKP8342G003PMS AC220EF6805R3PV1EF6809JLD
238614-05 8-D 240/60FTEF6805R3PXEF6809JM
G551A001MSEF6805TVPEF6809JMGB
MP-C-082 238410-058DEF6805TVPDIL4EF6809JV
HT8344G80 220VAC 50HZEF6805TVPDIL4EF6809P
238614-05 8-DEF6805U2FN（MC6805）EF6809PD/C9140PIN
G55A001MS 400125-097 230VACEF6805U2FNMC6805EF6809P（PULLS）
WSNFB327A112EF6805U2PEF6809P.
SCB344A074 AC220VEF6805U39EF6810
8320G184 238610-032D/50HZ110VACEF6805U3FNEF6810C
SCB344A074 AC220EF6805U3FN-BEF6810CM
SCE370A008MS AC220EF6805U3FN/678EF6810CMB
CTTSEF6805U3FN678EF6810CMB/B
P8262G2 110V 50HZEF6805U3FNBEF6810CMBB
EFG551G401M0 电压DC125VEF6805U3PEF6810CV
535E0116G02 220VACEF6805U3P（CD252-01）EF6810JMG/B
8215B50EF6805U3P（W3520-T）EF6810JMGB
E238A204EF6805U3P（W3520-T）D/C93EF6810P
GML209NJLED24HHEF6805U3P（W3520-T）D/C94EF6812P
SCE238A004EF6805U3P-BEF681GREEN
SCXB320A178EF6805U3P-DTE-12EF681P
EF8316G4 DC24V（常闭）二位三通防EF6805U3P-F151EF6820P
EFG551G401MO（常闭）电磁阀EF6805U3P-F173EF6821
FE8210G4 DC24V（常闭）二位三通EF6805U3P/DTE641EF6821B
JKP8342G003PMS220VAGEF6805U3P/E310EF6821C
EFG551B401MO 24VDCEF6805U3P/F151EF6821CM
8344B60M0EF6805U3P1EF6821CV
JE2-J320601 220VAC/50HZEF6805U3P7E310EF6821E1MB/T-TCS
H78344 G44 DC24VEF6805U3P=LSC404125EF6821E1MBTTCS
8355A082ASD2MSEF6805U3PBEF6821EM
HT8316G74/AC220EF6805U3PDTE12EF6821FNV
8355A082ASD2MSEF6805U3PDTE641EF6821J
HT8344G44 24VDCEF6805U3PE310EF6821JB/C
21200140EF6805U3PF151EF6821JBC
E290A005EF6805U3PF173EF6821JM
8210G15 AC220VEF6805U3PF337EF6821JMG-B
HT8316G74 AC220VEF6805U3PF343EF6821JMGB
50VF3-4TEF6805U3PF377EF6821JMGBTCS
50-VFE5120-4TD-03EF6805U3PF404EF6821JMTCS
EF8025A224MOEF6805U3PF439EF6821P
JOUCOMATIC34206015EF6805U3PLSC404125EF6821P（ST）
MP-C-080-006-D 24VDCEF6805U3PW3520-TEF6821P6821
VS135 AC220VEF6805U3PW3520TEF6821PD/C9640PIN（OBS）
VS3135-044EF6805U3PW3520TDC93EF6821PDIP-40SOCKETPU
WSNFET-B327A102 DC24V NFM1211EF6805U3PW3520TDC94EF6850CMG-B
8262G019EF6805UBNEF6850CMG/B
NBXB210B038EF6805V2PEF6850CMGB
8262G019 AC220VEF6805V3FNEF6850CV
8262G019 AC220VEF6808PEF6850CVTCS
833-354101106EF6809EF6850EM
82124038063EF6809CEF6850FN
EF8551A001MS 24VDCEF6809CMEF6850J
EF8551A017MS 24VDCEF6809CMB/BEF6850J=MC6850CP
EFG551H465 24VDCEF6809CMBBEF6850JM
SC8551A017MS 24VDCEF6821PDIP40SOCKETPUEF6850PWB24R0145
43004158EF68230-10CEF6850PCROPPED
8223G021EF6823010CEF6850PV
8360G071EF68230C-8EF6850PWB24R0145
8223G021 AC110EF68230C8EF68510P
8360G071 AC110EF68230CMB8EF6851P
535E0116G02 220VACEF68230P-10EF6852
NPT1/2:EF8210G094 220/50EF68230P10EF6852C
NPT11/2:EF8210G056 220/50EF68230P8EF6852CM
NPT3/4:EF8210G095 220/50EF6840EF6852CMB/B
PB21BEF6840CMEF6852CMBB
SCG551A001MSEF6840CM-B/BEF6852CV
SCJ551A001MSEF6840CM-TCSEF6852JM
238410-058-D（MC-C-82）EF6840CMBBEF6852JV
238510-034-D（MP-C-103）EF6840CMG-BEF6852P
SC G262 24V,15.3W,400325-242EF6840CMGBEF6852PV
400325-242EF6840CMTCSEF6854CM
306191EF6840CVEF6854CMBB
HT8344G44 24VDCEF6840FNEF6854CV
G551B401MO DC125VEF6840JEF6854JV
SCE210C094 AC220VEF6840JLDEF6854P
3003200H 3P 200A 分断能力H型EF6840JMEF6854PD/C8628PIN
ASCO 300C 3100NEF6840JMB/CEF6854P-TCS
K0304-316EF6840JMBCEF6854PTCS
K0304-355EF6840JMG/BEF6854PV
PA11B/KF11A1/PP03EF6840JMG/B-TCSEF685OP
RED-HAT IIEF6840JMGBEF685P
WT8551A1M6EF6840JMGBTCSEF6862P
SCZ353A040 AC220EF6840PEF68809P
SCZ353A050 AC220EF6840P-SGS94EF6880AP
SCZ353A060 AC220EF6840P=MC6840CPEF68821P
RED-HAT 11EF6840PMC6840CPEF68840P
EF8327G2 220VACEF6840PSGS94EF68850P
NFB327 A011 220VACEF6840PSTEF68854FN
SCG551A017MS 220VACEF6840PVEF68854J
SCG552A017MS AC220VEF6840P[ST]EF68854P
WT8551A1M6 220VEF6844PEF6885P
34203087 G3/8EF6845CEF6886P
35500333EF6845PEF6888P
52000008EF6846PEF6889P
430-04422 230VAC 2.5WEF684OPEF688F
RED-HAT IIEF6850EF68A00CF
HTJ211D4 DC110VEF6850PEF68A00CMB/B
238610-158-D （MP-C-080） 8323G3EF6850CEF68A00CMBB
8320G202 DC110VEF6850C/MEF68A00CV
U8325B14V AC110VEF6850C1MB/CEF68A00J
8316G66EF6850C1MBCEF68A00JLD
PA11BEF6850CMEF68A00P
8316G66 220VEF6850CMBEF68A00PV
PVL-B121618EF6850CMB-CEF68A02CV
NFB320A200 AC220VEF6850CMB/CEF68A02FN
NFB320A200 DC24VEF6850CMBBEF68A02P
EFHC 801bG1EF6850CMBCEF68A02PV
EFHC 8321G2EF6850CMGEF68A03CMIB/B
FLOWSERVE 7019-9ABCEF68A03PEF68A03CMIBB
HB 8320G200EF68A03PVEF68A03J
HBXB 320A200EF68A09CEF68A54CMB/B
HT 8316G66EF68A09CMEF68A54CMBB
NF 8320A200EF68A09CMB/CEF68A54CVTCS
HTJ211D4 DC110VEF68A09CMBCEF68A54J
EF8551A001MS 24VDCEF68A09CMG/BEF68A54JLD
EFB210D089V 24VDCEF68A09CMGBEF68A54P
EFG551417MO 24VDCEF68A09CVEF68AO9P
EFG551G401MO 24VDCEF68A09CVTCSEF68B00C
8316G24MOEF68A09EMEF68B00D
EFHC 801bG1 AC220VEF68A09EPEF68B00P
EFHC 8321G2 AC220VEF68A09FNEF68B00PU
FLOWSERVE 7019-9ABC AC220VEF68A09JLDEF68B00PV
HB 8320G200 AC220VEF68A09JMG/BEF68B01B
HBXB 320A200 AC220VEF68A09JMGBEF68B01P/D220
HT 8316G66 AC220VEF68A09JVEF68B01PD220
NF 8320A200 AC220VEF68A09PEF68B02/09/21
EFHC 8016G1 AC220VEF68A09PLDEF68B020921
8344B60M0 AC220VEF68A09PVEF68B02FN
EFL8344G70 220V/50HzEF68A10CEF68B02P
JE2-8320G13 220V/50HzEF68A10CVEF68B03FN
JE4-8025D224EF68A10PEF68B03P
JEP3X8320G174MBMOEF68A10VEF68B05
G551A001MS（551型）AC230V 50-60HEF68A21CEF68B05P
SCG353A044 DC24VEF68A21CMB/BEF68B08P
G551A002MS AC220EF68A21CMB/CEF68B09
EF8342G003PMS 240VACEF68A21CMBBEF68B09C
MPC-089 272614-155B 220V 50HzEF68A21CMBCEF68B09C-TCS
8344B60M0 DC24VEF68A21CVEF68B09CTCS
8316G24MOEF68A21FNEF68B09DIP40
SCE238A005 24VDCEF68A21JLDEF68B09EF
JKB8342G1M8EF68A21JMEF68B09EFN
35500343EF68A21JVEF68B09EP
35500344EF68A21JVTCSEF68B09EPD/C9240PIN
35500346EF68A21PEF68B09EPMITSUB
52100004EF68A21PVEF68B09EPST
SCG238C017 AC230V 50HZEF68A2IPS22KAEF68B09EP1C68B09E
JKB8342G1M8 AC220EF68A2IPS22KAEF68B09EPLSTD
8320G174 AC220VEF68A40EF68B09EPMITSUB
8210G95HW/220VAC/IP67、3/4\"管螺EF68A40CEF68B09EPST
SC/G353A043 3/4\"管螺纹EF68A40C-1MG/BEF68B09FN
U8325B39V AC110VEF68A40C1MGBEF68B09J
306191EF68A40CLDEF68B09J*
USF8210C93N AC220VEF68A40CMEF68B09J-（40）
JKB8342G1MB AC220EF68A40CMB/CEF68B09J40
833-354-223006EF68A40CMBCEF68B09JLD
EF8320G174 AC220VEF68A40CMG/BEF68B09P
JKP8342G001MS 220VACEF68A40CVEF68B09PSTM
WPTISB307A406EF68A40JEF68B09P.
8316G24MO AC220VEF68A40JDLEF68B09P=MC68
NF-G551A401-MS-MEF68A40JLDEF68B09P=MC68B09P
WBIS8223A310EF68A40JVEF68B09PMC68
WBIS8262A386EF68A40JVTCSEF68B09PMC68B09P
WBIS8316A381VEF68A40PEF68B09PV
WBIS8316A384VEF68A40PLDEF68B09ST
8290AD34EF68A40PVEF68B09[ST]
SLG353 060 1－6Bar 3″ 75mmEF68A4OPEF68B10C
8262G13 ac220EF68A50EF68B10FM
8263G206V ac220EF68A50AEF68B10P
2636044EF68A50CEF68B10P.
EF8308741F 24VDCEF68A50C-1MG/BEF68B12P
EF8308B40 220VACEF68A50C1MGBEF68B19EP
EF8320G174 24VDCEF68A50CLDEF68B21
EV8327G52 24VDCEF68A50CLPEF68B21C
NFM1211EF68A50CMEF68B21CLD
PA11B 220VEF68A50CMB/CEF68B21CP
EV855/G455EF68A50CMBCEF68B21FN
18900001EF68A50CMG/BEF68B21J
35500382EF68A50CMGBEF68B21P
54191006EF68A50CVEF68B21PPULLS
52100004 AC220VEF68A50FNEF68B21PST
EF8344G70 24VDCEF68A50JEF68B21PTHOMSON
JBEFX（或*）8344G72MF 220VACEF68A50JMEF68B21P-S22MC
NFG-551B401-MS-MEF68A50JVEF68B21P.
NFG-551B402-MS-MEF68A50PEF68B21P2
8210G2EF68A50PD/C8224PINEF68B21PPULLS
DM12-2FX DCFEF68A50PPULLSEF68B21PS22KD
5002253EF68A50PLDEF68B21PS22MC
54190017EF68A50PPULLSEF68B21PST
E2318CBCOT 110VACEF68A52CMB/BEF68B21PTHOMSON
E2518CBCOT 110VACEF68A52CSEF6937
E2518CBCOT 220VACEF68A52PEF6944
EFHC8210G11EF68A54CEF69B50P
EFHC8210G13EF68A54CLEF69SB
EFHC8210G3EF68A54CMEF6B00CMB/B
S100EF68B21PVEF6B00CMBB
8290AO34EF68B21PW22CLEF7
WBIS8314A300MOEF68B30FNEF70
SCG31B-001MSEF68B40CEF71
272614-155DEF68B40CLDEF71-22
8290AO34 AC220EF68B40CPEF7122
SCG531B-001MS DC24VEF68B40JEF72
V301/P/6 C1/4 13100156EF68B40JLDEF73
88100142 60V 500MAEF68B40PEF7305636
DM12-2FX DCFEF68B40PDIPEF730=5636
EV8316G384V 48VDCEF68B40PSTEF731
JKF8210G95MO 220VACEF68B40P（W22BX9640）EF732[5840]
JKH832G1MS 220VACEF68B40P.EF7325840
JKP8342G001MS 220VACEF68B40P/W220E0107EF7331CLD
PSF8262C2 110VACEF68B40PDIPEF73321
WPTISB307A406 24VDCEF68B40PS22EF73321CC
DM12-2FX DCFEF68B40PSTEF73321CL
EV8316G384V 1/2常闭 48VDCEF68B40PVEF73321CLFE11
JKF8210G95M0 1/4 220VACEF68B40PW220E0107EF73321PL
JKH 832G1MS 220VACEF68B40PW22BX9640EF733244J
JKP8342G001MS 220VACEF68B45PEF7332CL
PSF8262C2 1/8 110VACEF68B4OPEF7332ICL
WPTISB307A 406 1/4NPT 24VDCEF68B50-PEF7332PL
EFG551G417MO 24VDCEF68B50CEF7333
NFB551B401 24VDCEF68B50C-TCSEF73331CL
EF8320G18EF68B50CPEF7333CL
HCG551A001MA4 AC220EF68B50CTCSEF7333CLDISCONTINUED
K226061-1EF68B50FNEF7333CLD
54100883EF68B50JEF7333CLMTCB
HTJ211D4 DC110VEF68B50JDLEF7346205
PB17A/RG10A 21JEF68B50PEF734=6205
PB27A/RL20A 21JEF68B50PSEF74
HTJ211D4EF68B52PEF74120
EF8320G18 24VDCEF68B54EF7442CD
52100004EF68B54CEF7442CDD
55102005 240VDCEF68B54FNEF7445CDP
55102009EF68B54JEF75
55102011 240VDCEF68B54JLDEF7512PL
MP-C-080 23610-058B 8320G186EF68B54JLOEF7519C
REDHAT EF8300D61UEF68B54PEF755608
REDHAT EF8320G172EF68B54PSTEF7590FNLD
S4-95GP 240V 50HZ 6wEF68B54PSTEF75MD
43004422EF68B5OPEF7901PL
MP-C-082 238410-058-DEF68B9PEF7910
PB11BEF68BO9EPEF7910AM7910
SCG53LW00MS 220VEF68BO9JEF7910-D1A
8320G172 AC220VEF68BO9PEF7910AM7910
U8325B39V 110PSIEF68BOQPEF7910CL
SCE238A007 AC220VEF68D09EPEF7910D1A
1890001 MEDIUM:AIR 24VDCEF68E09PEF7910J/JL/PL
2位5通， IS02，单电EF68F54JEF7910JJLPL
2位5通，IS02 单电EF68HC04-J3PEF7910JL
43004166 24VDCEF68HC04J3PEF7910JL.
ISO 2， 侧面出口， G1/2EF68HC04P3FNEF7910JLD
ISO 2，侧面出口 G1/2EF68HC04P3PEF7910JLD-D1A
238714-006-DEF68HC04P3PD/C94EF7910JLD1
EF8320G174EF68HC04P3P/F253EF7910JLDD1A
B63074，XOV-135EF68HC04P3PDEF7910P
F831D20 24VDCEF68HC04P3PD/C94EF7910PC
JE3-8311A40，XOV-10102EF68HC04P3PDC94EF7910PC-D1A
NFB316A54，XOV-11200EF68HC04P3PF253EF7910PCD1A
EF8320 G174EF68HC05E-2PEF7910PL
55192005EF68HC05E2CMEF7910PLPULL28PIN
E238A207EF68HC05E2PEF7910PLD1
17P-C-011 064982-004DEF68HC50PEF7910PLD1A
34207093 带压力表EF68O1JEF7910PLPULL28PIN
EF8320G174EF68O1U4PEF7910PL-01
EF8025B224MOEF68O2PEF7910PL-01A
HT8316G074 AC220VEF68O3PEF7910PL-D1
12100309EF68O5R2PEF7910PL-D1-DA
272812-155EF68O5R2PDO91EF7910PL-D1A
34203086EF68O9PEF7910PL-D1A（CROPPED）
400125-097EF69-37EF7910PL-DIA
12100309EF69-44EF7910PL01
272812-155EF6903-1PEF7910PL01A
34203086EF69031PEF7910PL10
400125-097EF6903PEF7910PLD
EF8025B224MO DC24VEF7910PLD1ACROPPEDEF7910PLDPULLS
EFB0824HF DC24 0.2AEF7910PLD1APULLSEF7910PLD1
J263G205LTEF7910PLD1DAEF7910PLD1A
EFG551G401MOEF7910PLDIAEF8262G00212060
EFG551G401MO AC220VEF7910PLPULL28PINEF8262G022120/60,110/50
G327A001EF7916PL-D1AEF8262G0221206011050
JB58A218C 250VACEF7916PLD1AEF8262G13V
2*18900001EF791OPLDIAEF8262G38
2*19200001EF791OPLO1AEF8262G80V
8210G 13EF791PL-D1AEF826362
8321 G1EF791PLD1AEF8263G210
8345G 1EF8EF826CH6
EF8300D61UEF80EF83
G551 A001MSEF80/6BX6EF83/6BK8
RGS 240EF80MAZDAEF8300B404U
SCG531B001MSEF80PHILIPSEF8300D061F120/60OEM
8262G80M0EF80SBEF8300D061F12060OEM
EF8320G188EF80[6BX6/6EL7]EF8308
EF8342C1EF80/6BX6EF8308J
43550447 CC128 100MEF800EF8308P
8262G80M0 220VEF800=EF860EF8314G30124/DC
EF8320G188 220VEF800EF860EF8314G30124DC
EF8342C1 220VEF8010EF831613（01）
J263G205LT AC220VEF802EF8316G14
G551A001MS AC220VEF8029-1EF8316G74
55192009 DC24VEF80291EF8317G007120/60
55192011 DC24VEF803EF8317G00712060
JBEV8316G82 24VEF8030G013120/60EF8320G041120/60
8210G037 DC24VEF8030G01312060EF8320G04112060
SCXG327A001EF804EF8320G057120/60
E2GOA6GEF804SEF8320G05712060
EF8210G088EF805EF8320G140MS120/60
306192-MSEF805SEF8320G140MS12060
EF8320F174MS 220VACEF806EF8320G174120/60
EF8342G003MS 220VACEF806BX6EF8320G174120/60OEM
JKF8300146205D（CROSSB）EF806BX66EL7EF8320G17412060
EF8342G003MS 22VACEF806SEF8320G17412060OEM
SCG353A047PIPE2 AC240EF80=6BX6EF8320G174MS120/60,110/
SCG353A051PIPE3 AC240EF80B03FNEF8320G174MS12060110
K302730M0EF80MAZDAEF8320G176120/60
8320G10 AC220VEF80PHILIPSEF8320G176120/60OEM
SLG353 060 1－6Bar 3\" 75mmEF80SBEF8320G17612060
NF-B327A001 DC24VEF81EF8320G17612060OEM
8215G2 AC220VEF8131-3EF8320G184120/60OEM
8342G703 AC220VEF81313EF8320G18424/DCOEM
SCB307B065F AC220VEF82EF8320G18412060OEM
SCG553A005MS AC220VEF82/6CH6EF8320G18424DCOEM
MP-C-080238710-006D 24DCFTEF8210B23EF8320G200120/60OEM
NFB307B065 UMOEF8210G002120/60EF8320G20024/DCOEM
WT8511A1MS 220VEF8210G00212060EF8320G20012060OEM
CAT.NO:HT8316G66 110VDCEF8210G003120/60EF8320G20024DCOEM
8320G176EF8210G003120/60,110/50EF8320G202120/60OEM
EF8342G1M1 220VAC 50HZEF8210G00312060EF8320G20212060OEM
SC30P-RE25T1EF8210G0031206011050EF8320G203120/60OEM
K303-116EF8320G174 220VACEF8210G004120/60EF8320G20312060OEM
VALVECATAL0GEF8210G00412060EF832151124/DCOEM
8320G176EF8210G009120/60EF832151124DCOEM
HB8316G074EF8210G00912060EF8321G001120/60
HB8320G174EF8210G027120/60EF8321G001120/60OEM
HT 8316G66 110VDCEF8210G02712060EF8321G00124/DCOEM
13100199EF8210G034120/60EF8321G00112060
88100144EF8210G03412060EF8321G00112060OEM
35500076EF8210G035120/60EF8321G00124DCOEM
54191023EF8210G03512060EF8321G1
54291023EF8210G087120/60EF8342C001MMS120/60
SCG353A043EF8210G08712060EF8342C001MMS12060
8266D26VEF8210G094120/60EF8342G001120/60
JKF8300G58RU AC220VEF8210G094120/60OEMEF8342G001120/60OEM
EF8320G174MSEF8210G09412060EF8342G00112060
E-E/2 300# CODE:16500097N:146625EF8210G09412060OEMEF8342G00112060OEM
55192011EF8210G095120/60EF8342G001MS120/60
HB8316D15VMB AC220VEF8210G095120/60,110/50EF8342G001MS12060
HB8316G16VMB DC110VEF8210G09512060EF8342G003120/60
PC11B/LK11A1D/QP01EF8210G0951206011050EF8342G00312060
8210G94 DC24VEF8210G4-120VEF8342G020120/60
8320G83 AC220VEF8210G4120VEF8342G02012060
PC11B/KL11AID/QP01EF8210G88-VEF8342G20
54190883EF8210G88VEF8344G001120/60
SCE238A009 24VDCEF8210G94EF8344G00112060
ASCO-ATS-1630A/4PEF8220G021120/60EF8344G072120/60
ASCO-ATS-630A/4PEF8220G02112060EF8344G07212060
EF8320G200220/50EF8223G10EF8345G001120/60
8210G15EF8262G002120/60EF8345G001120/60,110/50
K302-116EF856BY7EF8345G00112060
VQ4201-4WEF856BY76F19EF8345G0011206011050
8316G64 DC220VEF85=6BY7EF836
8316G66 DC220VEF85HALTRONEF836BK8
8342G001 AC220VEF85RTCEF84
EFG551G401MSEF86EF840
MP-C-089EF86/6267EF8408PL
PSF8262C2 1/8 110VACEF86/6CF8ZAERIXEF85
SCISB314C35EF860EF85/6BY7
WPFTXE320A192EF860=EF800EF85HALTRON
8320G176EF860EF800EF85RTC
SCG551A001MS DC24VEF866267EF85[6BY7/6F19]
SCG551A001MS AC220VEF866267PHILEF8512P
EFG551G401MS 220VEF866267PHILEF8530C
MP-C-089 220VEF866CF8ZAERIXEF8551A001MS120/60,110/
8210G009 AC220VEF86=6267EF8551A001MS12060110
EFG551B401MSEF86SVETEF956AK56069
EF8300D61U AC220VEF87189PDEF95=6AK5
EF8320G174 AC220VEF87446DPEF96[6AG5]
8210G15 AC220VEF8816APEF96/6AG5
NBB307078EF89EF966AG5
NFB307021EF89/6DA6EF96=6AG5
NFB307C79EF89[6DA6]EF97
NFB327001EF89/6DA6EF97/6ES6
SCG551A001MSEF896DA6EF97[6ES6]
SCG551A001MSPEF89=6DA6EF976ES6
SC8401B103EF8B54PEF979
SCXB307B075FEF8JTEF98
WPXB344 082M0496142EF9EF98/6ET6
RED-HAT K12-670 24VEF90EF98BELVU
31-223 B25282EF900DCEF98INTERCOMPOSANTS
12500001 125 220VAC 1/2”EF905EF98METAL
8210G88EF91GECEF98PHILIPS
EF8327G42 24vdcEF91SPECIALEF98EFUNKEN
EV8316G84V 24vdcEF91[6AM6/6F12]EF98[6ET6]
NFB307B05F（NELES） 24vdcEF91-6AM6EF986ET6
NFB327A001 24vdcEF91/6AM6EF98BELVU
NFB327A002 24vdcEF910APC-25/-30EF98INTERCOMPOSANTS
NFBSS1B488（NELES） 24vdcEF910APC2530EF98METAL
88212132EF910DC-30EF98MINIWATT
NBB307078 AC220EF910DC-30alteraEF98PHILIPS
NFB307021 AC220EF910DC30EF98EFUNKEN
NFB307C79 AC220EF910DC30alteraEF9910-2.5H
NFB327001 AC220EF916AM6EF991025H
10700208EF916AM66F12EFA
8210G88 AC220VEF91=CV138EFA-0009
G551A001MSEF91CV138EFA-0063
K302-116EF91GECEFA-0077
55100004 AC220VEF92EFA-0214-ASSY
55102005 DC24EF92[6CQ6/6F21]EFA-029-TO-EFA-006
55102011 DC24EF92/6CQ6EFA-0404-002
REDHAT EF8300D61U DC24EF9241PEFA-240D-SOT89
REDHAT EF8320G172 DC24EF926CQ6EFA-50.7MM.T
REDHAT MP-C-080 DC24EF926CQ66F2152000008
238310EF929ASCO 300/C3/70A
238314EF92=CV4015EF8210G14 110V/50HZ
je3ht8215j30v AC100/60hzEF92=M8161/6CQ6EF6803PST
je3ht8215j30v dc100/60hzEF92CV4015EF6803PV
E32-8320A DC24EF92M81616CQ6EF6803ST
822713 SCB327A 24VEF93EF6803U4-1P
43004158EF93/6BA6EF6803U4-IP
55192011EF9340PEF6803U41P
EXIBIICT4EF9340UEF6803U4IP
HSV-8546AEF9341EF6803U4P
52100008EF9341PEF6803U4PV
电磁阀的底板EF9345EF6803UP4
SCG353A047EF9345FNEF6803V4P
KVP342,DC24VEF9345FNR003EF6804J2P
EF8342G1EF9345FNR003EF6804J2P/C501
EF8342G1 AC220VEF9345INTEGRATOEF6804J2PC501
55100004 AC220VEF9345PEF6804J2PN
55100004 DC24VEF9345PDisp.CtrEF6804J2PV
REDHAT EF8300D61UEF9345PR003EF6804P
EFG551B401MS AC220VEF9345PR005EF6804P2P
EF8316G304 DC24VEF9345P（RFB）EF6805-U3P
EF8344G374 DC24VEF9345P-SGSEF680503P/DTE641
238610-158-DEF9345PDispCtrEF680503PDTE641
JE3-8320G174 110VACEF9345PR003EF6805CTP1
EV8316G84V 24VDCEF9345PR005EF6805P
KSL08-02SEF9345PRFBEF6805P2
8320G182VEF9345PSGSEF6805P2FPV
EV8316G38V 24DCEF9365CEF9369PTOMS0N
JBEF8210G088 220/50EF9365PEF9369P~
JBEF8210G089 220/50EF9366EF9369P.
je3ht8215g30vEF9369PEF94/6AU6
EF95/6AK5EF95/6AK5EF94/6AU6
EF9512PEF95[6AK5/6069]EF946AU6