- Length
- 1,850 mm
- Specification
- DN6;1SN-04;22.5MPa
- Left fitting
- 美制内螺纹74°内锥
- Right fitting
- 90°美制内螺纹74°内锥
Individual hose record
4640278 Hose Repair Specifications
Excavator · Hitachi · ZX450LC-3 · Control Valve
Finished length470 mm
Locate this hose
Installation diagram — Pipe No. 21
Locate Pipe No. 21 in the diagram, then confirm part number 4640278 before removing the hose.

Repair specifications
- Part number
- 4640278
- Diagram pipe number
- 21
- Installation route
- 分配阀前~回转马达(右)
- Hose specification
- DN25;2SN-16;16.5MPa
- Finished length
- 470 mm
- Working pressure
- 16.5 MPa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封
- Quantity
- 1
Same system
Related Hoses
- Length
- 1,000 mm
- Specification
- DN10;1SN-06;18MPa
- Left fitting
- 美制内螺纹74°内锥
- Right fitting
- 45°美制内螺纹74°内锥
- Length
- 1,750 mm
- Specification
- DN6;1SN-04;22.5MPa
- Left fitting
- 美制内螺纹74°内锥
- Right fitting
- 90°美制内螺纹74°内锥
- Length
- 350 mm
- Specification
- DN10;1SN-06;18MPa
- Left fitting
- 90°美制内螺纹74°内锥
- Right fitting
- 90°美制内螺纹74°内锥
- Length
- 1,250 mm
- Specification
- DN19;4SH-12;42MPa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- 90° light-series flangeOriginal Chinese: 90°法兰-轻型
- Length
- 1,200 mm
- Specification
- DN19;4SH-12;42MPa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- 90° light-series flangeOriginal Chinese: 90°法兰-轻型
- Length
- 750 mm
- Specification
- DN6;1SN-04;22.5MPa
- Left fitting
- 美制内螺纹74°内锥
- Right fitting
- 90°美制内螺纹74°内锥
- Length
- 1,700 mm
- Specification
- DN25;4SP-16;32Mpa
- Left fitting
- American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
- Right fitting
- 75°法兰-重型
