? ? 按用途分為單向閥和換向閥。單向閥：只允許流體在管道中單向接通，反向即切斷。換向閥：改變不同管路間的通、斷關(guān)系、根據(jù)閥芯在閥體中的工作位置數(shù)分兩位、三位等；根據(jù)所控制的通道數(shù)分兩通、三通、四通、五通等；根據(jù)閥芯驅(qū)動方式分手動、機動、電動、液動等。圖2為三位四通換向閥的工作原理。P 為供油口，O 為回油口，A 、B 是通向執(zhí)行元件的輸出口。當(dāng)閥芯處於中位時，全部油口切斷，執(zhí)行元件不動；當(dāng)閥芯移到右位時，P 與A 通，B 與O 通；當(dāng)閥芯移到左位時DG5V-7-6C-T-M-U-B5-40?

DG5V-7-6C-T-M-U-H5-40?

DG5V-7-6C-T-M-U-H7-30（帶插頭）

DG5V-7-6C-T-VM-U-H5-40

DG5V-7-6C-T-V-M-U-H5-40 ?

DG5V-7-6C-T-VM-U-H5-40+977467

DG5V-7-6C-VM-U-H5-40

DG5V-7-6C-VM-U-H5-40 ? ?

DG5V-7-8C-2-E-T-VM-U-H5-

DG5V-7-8C-2E-V-MU-H5-40

DG5V-7-8C-VM-U-A5-40

DG5V-7-8C-VM-U-H5-40?

DG5V-8-H-0AL-E-M-U-H-10

DG5V-8H-11C-M-FW-B-30

DG5V-8-H-2A-T-M-U-H-10

DG5V-8-H-2C-E-T-VM-U-H-1

DG5V-8-H-2C-T-VM-U-H-10

DG5V-8-H-2N-T-M-U-H-10

DG5V-8-S-0A-M-U-H-10

DG5V-8-S-2A-E-M-U-H-10

DG5V-8-S-2A-M-FPA5WL-B-1-0

DG5V-8-S-2A-M-U-H-10

DG5V-8S-2A-T-MUH-10

DG5V-8-S-2A-T-M-U-H-10

DG5V-8-S-2B-T-M-U-H-10

DG5V-8-S-2C-E-M-U-H-10

DG5V-8-S-2C-E-T-M-U6-B-1

DG5V-8-S-2C-E-T-M-U-H-10

DG5V-8S-2C-M-U-H-10

DG5V-8-S-2C-M-U-H-10

DG5V-8S-2C-T-MUH-10

DG5V-8-S-2C-T-M-U-H-10

DG5V-8-S-2N-M-FPA5WL-B-1-0

DG5V-8-S-31C-M-U-H-10

DG5V-8-S-31C-T-M-U-H-10

DG5V-8-S-3C-M-U-D-10

DG5V-8-S-3C-T-M-U-H-10

DG5V-8-S-6AL-E-M-U-H-10

DG5V-8-S-6C-2-M-U-H-10

DG5V-8-S-6C-E-T-M-U-B-10

DG5V-8-S-6C-E-T-M-U-H-10

DG5V-8-S-6C-M-U-H-10

DG5V-8S-6C-T-MUH-10

DG5V-8-S-6C-T-M-U-H-10

DG5V-H8-2C-2-E-M-U-H5-30

DG5V-H8-2C-M-U-C6-21

DG5V-H8-2C-VM-U-H5-30

DG5V-H8-2N-2-T-M-U-H5-30

DG5V-H8-2N-E-M-U-H5-30

DG5V-H8-2N-T-M-U-H7-21

DG5V-H8-33C-E-M-U-H5-30

DG5V-H8-6C-M-U-H5-30

DG5V-H8-6C-T-M-U-H5-30

DG5V-H8-6C-VM-U-H5-30

DG5V-H8-6C-VM-U-H5-30 ?

DG5V-H8-6C-VM-U-H5-30+977467

DG5V-H8-6C-VM-U-H5-40，P 與B 通，A 與O 通。這樣，執(zhí)行元件就能作正、反向運動。 60年代后期，在上述幾種液壓控制閥的基礎(chǔ)上又研制出電液比例控制閥。它的輸出量(壓力、流量)能隨輸入的電信號連續(xù)變化。電液比例控制閥按作用不同，相應(yīng)地分為電液比例壓力控制閥、電液比例流量控制閥和電液比例方向控制閥等。1）螺紋連接閥門?

SDHE-0713-X 24DC?

SDHE-0713-X 24DC 10S?

SDHE-0713-X 28DC 10?

SDHE-0713-X 28DC 10S?

SDHI-0611/A-X 24DC 23?

SDHI-0614-X 12DC 23?

SDHI-0631/2/A-X 00?

SDHI-0631/2/A-X 230/50/60AC 23?

SDHI-0631/2/A-X 230AC/WP+SP-666?

SDHI-0631/2/A-X 24DC?

SDHI-0631/2/A-X 24DC 23?

SDHI-0631/2/A-X 24DC 23 ?

SDHI-0631/2/A-X 28DC?

SDHI-0631/2-00 23?

SDHI-0631/2-X 230/50/60AC?

SDHI-0631/2-X 230/50/60AC 23?

SDHI-0631/2-X 24DC?

SDHI-0631/2-X 24DC 23?

SDHI-0631/2-X 28DC?

SDHI-0632/2/A-X 24DC 23?

SDHI-0639/O-X 00?

SDHI-0639/O-X 230/50/60AC 23?

SDHI-0639/O-X 24DC?

SDHI-0639/O-X 24DC 23?

SDHI-0671-X 24DC 23?

SDHI-0710-00 23?

SDHI-0710-X 00 23?

SDHI-0710-X 00(SDHI-0715-X 00)?

SDHI-0710-X 230/50/60AC 23?

SDHI-0710-X 24DC 23?

SDHI-0711-X 00 23?

SDHI-0711-X 12DC 23?

SDHI-0711-X 230/50/60AC 23?

SDHI-0711-X 24DC?

SDHI-0711-X 24DC 23 ?

SDHI-0713-00 23?

SDHI-0713P-X 24DC?

SDHI-0713P-X 24DC 23?

SDHI-0713-X 00 23?

SDHI-0713-X 12DC?

SDHI-0713-X 12DC 23 ?

SDHI-0713-X 230/50/60AC 23?

SDHI-0713-X 24DC?

SDHI-0713-X 24DC 23?

SDHI-0714-00 23?

SDHI-0715-X 00 23?

SDHI-0715-X 12DC 23?

SDHI-0718-X 24DC 23?

SDHI-0751/2-X 24DC 24?

SDKE-1631/2/A-X 24DC?

SDKE-1631/2-X 00?

SDKE-1631/2-X 24DC?

SDKE-1671-X 24DC 10 ?

SDKE-1713-X 24DC?

SDKE-1713-X 24DC 10 ?

SDKE-1714-X 00?

SDKE-1714-X 24DC?

SDKE-1714-X 24DC 10S?

SDPHE-2711/D-X 24DC?

SDPHE-3711/D-X 24DC?

SDPHE-3713/D-X 24DC?

SDPHI-2631/2/D-X 24DC 33?

SDPHI-2711/D-X 24DC 33?

　　這種連接通常是將閥門進出端部加工成錐管或直管螺紋，可使其連接到錐管螺紋接頭或管路上。由于這種連接可能出現(xiàn)較大的泄漏溝道，故可用密封劑、密封膠帶或填料來堵塞這些溝道。如果閥體的材料是可以焊接的，但膨脹系數(shù)差異很大，或者工作溫度的變化幅度范圍較大，螺紋連接部必須進行蜜封焊。螺紋連接的閥門主要是公稱通經(jīng)在50mm以下的閥門。如果通徑尺寸過大，連接部的安裝和密封十分困難。?

DG4V-3S-0C-M-FTWL-B5-60

DG4V-3S-6C-M-FTWL-H5-60

DG4V-3S-6C-M-FPA5WL-H5-60

DG4V-3S-0B-M-FW-H5-60

DG4V-3S-6N-M-FPA5WL-B5-60

DG4V-3-2C-M-FTWL-H7-60

DG4V-3-6C-M-FTWL-B6-60

DG4V-3-2A-M-FTWL-B6-60

DG4V-3S-3F-M-U-H5-60

DG4V-3S-2AL-M-FTWL-H5-60

DG4V-3-2N-M-FPA5WL-B6-60

DG4V-3S-6B-M-FPA5WL-B5-60

DG18V-3-0B-P-60

DG17V-3-2A-60

DG17V-3-2C-60

DG17V-3-2N-60

DG20V-3-2A-60

DG20V-3-2C-60

DG18V-3-2C-P-60

DG18V-3-6C-P-60

DG18V-3-2A-P-60

DG17V-3-0C-60

DG17V-3-0N-60

DG17V-3-6C-60

DG4V-3S-0C-M-FW-B5-60-EN21

DG17V-3-6N-60

DG4V-3S-2C-M-FPA5WL-H5-60

DG4V-3S-2A-M-FPA5WL-H5-60

DG4V-3-2A-M-FPBWL-D6-60

DG4V-3-2A-M-FTWL-GL7-60

DG20V-3-0A-60

DG20V-3-2A-2-60

DG17V-3-8C-60

DG20V-3-6A-60

DG17V-3-2CL-60

DG17V-3-8N-60

DG17V-3-2AL-60

DG4V-3S-2C-M-U-B5-60-EN21

DG18V-3-7C-P-60

DG4V-3S-2AL-M-U-B5-60-EN21

DG18V-3-8C-V-P-61

DG20V-3-0A2-60

DG18V-3-0C-B-60

DG18V-3-2A-B-60

DG4V-3S-8C-VM-FW-B5-61

DG4V-3S-8C-VM-FW-H5-61

DG4V-3S-0BL-M-FTWL-D5-60

DG18V-3-2C-B-60

DG18V-3-6C-B-60

DG4V-3S-2C-M-FWL-B5-60-EN21

DG4V-3S-6N-M-FWL-B5-60-EN21

DG4V-3-2A-M-FWL-B6-60-EN21

DG4V-3-6C-M-FWL-B6-60-EN21

DG4V-3S-6C-M-U-H5-60-EN21

DG4V-3-8C-VM-U-B6-61-EN21

DG4V-3S-2A-M-X1-H4-60

DG4V-3S-2A-M-X2-H4-60

DG4V-3S-2FL-M-U-H5-60

DG4V-3-2A-M-U-H7-60-EN21

DG4V-3-6C-M-U-B6-60-EN21

DG4V-3-2A-M-U-B6-60-EN21

DG18V-3-2N-B-60

DG4V-3S-0B-M-FWL-B5-60-EN21

DG4V-3-6C-M-FW-H7-60-EN21

DG4V-3-2N-M-U-B6-60-EN21

DG4V-3S-6C-M-FPA4WL-H5-60-EN476

DG4V-3S-6C-M-X2-H4-60

DG4V-3-22A-M-S5-FJ-H2-60

DG4V-3S-2C-M-X2-H4-60

DG4V-3-2N-M-FPBWL-A6-60

DG4V-3S-2N-M-FPA4WL-H5-60-EN476

DG4V-3-6C-M-U-H7-60-EN21

DG4V-3-0B-M-U-H7-60-EN21

DG4V-3-2A-M-FTWL-P7-60

DG4V-3S-0C-M-X2-H4-60

DG4V-3S-6C-M-FTWL-C5-60

DG4V-3S-2C-M-FW-D5-60-EN4

DG4V-3S-2C-M-FPA4WL-H5-60-EN476

DG18V-3-8C-V-B-61

DG4V-3S-2AL-M-FW-OJ5-60

DG4V4-010A-M-U-H-L-4-10-S579

DG4V-3-2C-M-FW-H7-60-EN21

DG4V-3-2C-M-U-H7-60-EN21

DG4V-3S-2N-M-X1-H4-60

DG4V-3S-6C-M-X1-H4-60

DG4V-3-2A-M-FPBWL-A6-60

DG21V-3-0A-2-60

DG4V-3S-6C-M-X1-ER4-60

DG4V-3S-2A-M-X1-A4-60

DG4V-3S-52C-M-FTWL-H5-60

DG17V4-012C-10

DG17V4-016C-10

DG17V4-018C-10

DG17V4-010N-10

DG17V4-012N-10

DG17V4-016N-10

DG17V4-018N-10

DG4V-3S-2A-M-FTWL-D1-H5-60-EN547

DG4V-3S-6C-M-FTWL-D1-H5-60-EN547

DG4V-3-6C-M-FWL-H7-60-EN21

F3-DG4V4-012C-M-W-B-L-4-10

DG17V4-010C-10

DG17V4-012A-10

DG1V4-012N-10

DG4V4-016C-M-X1-H-4-10-S585

DG17V4-0133C-10

DG17V4-016C-H-10

DG4V-3S-2C-M-U-H5-60-EN21

DG4V-3S-0A-M-U-H5-60-EN21

DG4V-3-2N-M-KUM5L-D3-H7-60

DG4V-3-0BL-M-U-H7-60-EN21

DG17V4-016A-10

DG4V-3S-8B-VM-U-H5-61-EN21

DG18V4-010N-10

DG4V-3S-2C-M-X1-H4-60

DG4V-3S-22AL-M-X1-H4-60

DG4V-3-6C-M-FJ-H7-60

DG4V-3-2A-M-FW-B6-60

DG4V-3-2N-M-FTWL-H7-60

DG4V-3-6C-M-FW-B6-60

DG4V-3-0B-M-FTWL-H7-60

DG4V-3-0BL-M-FW-B6-60

DG4V-3-0BL-M-FW-H7-60

DG4V-3-2C-M-FW-B6-60

DG4V-3-2C-M-FTWL-B6-60

DG4V-3-2N-M-FW-B6-60

DG4V-3-2C-M-FW-A6-60

DGMFN-5-X-A2K-B2K-30

DGMC2-5-AT-FW-BT-FW-B-30

DGMC-5-BT-FW-B-30

DGMPC-5-BAN-30

DGMPC-5-BAM-30

DGC5-060A-C-M-FW-B5-80

DGMPC-5-ABM-30

DGMDC-5-X-TM-30

DGMR-5-A1-FW-30

DGMR-5-B1-FW-30

DGMR-5-A1-FW-B1-FW-30

DGMPC-5-D-ABM-D-BAM-30

DGMC-5-AT-FW-B-30

DGMDC-5-Y-PM-30

DGMC-5-PT-FH-B-30

DGMPC-5-ABN-30

DGMC-5-PT-GH-RC-B-30

DGMDC-5-Y-BM-30

DGMC-5-PT-FW-RC-B-30

DGMC-5-BT-AW-B-30

DGMR1-5-PP-BW-B-30

DGMC-5-AT-AW-B-30

DGMC-5-AB-GW-30