Hydraulic line repair data

Hitachi ZX450LC Control Valve Hose List

Coverage details

Hoses: 22 records
Full specifications: 22 records
Systems: 1 systems
Length range: 350–1,700 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 25

4368895

Installation route: 分配阀左~过渡阀块(分配阀)

Length: 650 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 18A

4367008

Installation route: 分配阀下~分配阀右

Length: 1,000 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 40

4323284

Installation route: 分配阀前~回转马达

Length: 420 mm
Specification: DN19;1SN-12;10.5MPa
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

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Diagram Pipe No. 38

4459253

Installation route: 分配阀左~液压油箱

Length: 1,440 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

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Diagram Pipe No. 40

4323284

Installation route: 分配阀前~回转马达(左)

Length: 420 mm
Specification: DN19;1SN-12;10.5MPa
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

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Diagram Pipe No. 13

4386491

Installation route: 分配阀左~回转马达(右)

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

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Diagram Pipe No. 40

4452811

Installation route: 分配阀上右~液压油箱

Length: 740 mm
Specification: DN6;1SN-04;22.5MPa
Left fitting: 90°美制内螺纹74°内锥
Right fitting: 90°美制内螺纹74°内锥

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Diagram Pipe No. 16

4369871

Installation route: 分配阀右~铁管(大臂油缸)

Length: 1,450 mm
Specification: DN32;6SH-20;42MPa
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

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Diagram Pipe No. 30

4445370

Installation route: 分配阀上左~分配阀上右

Length: 900 mm
Specification: DN10;1SN-06;18MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 美制内螺纹74°内锥

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Diagram Pipe No. 13

4386491

Installation route: 分配阀左~回转马达(左)

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

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Diagram Pipe No. 27

4451995

Installation route: 分配阀上~电磁阀

Length: 350 mm
Specification: DN6;1SN-04;22.5MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 美制内螺纹74°内锥

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Diagram Pipe No. 14

4343422

Installation route: 分配阀左~回转马达(右)

Length: 1,350 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

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Diagram Pipe No. 23

4445270

Installation route: 分配阀上左~分配阀下

Length: 1,000 mm
Specification: DN10;1SN-06;18MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 90°美制内螺纹74°内锥

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Diagram Pipe No. 25

4437397

Installation route: 分配阀上左~分配阀左

Length: 350 mm
Specification: DN6;1SN-04;22.5MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 美制内螺纹74°内锥

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Diagram Pipe No. 43

4437622

Installation route: 分配阀右~液压油箱

Length: 750 mm
Specification: DN10;1SN-06;18MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 美制内螺纹74°内锥

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Diagram Pipe No. 42

4445272

Installation route: 分配阀左~液压油箱

Length: 1,400 mm
Specification: DN10;1SN-06;18MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 90°美制内螺纹74°内锥

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Diagram Pipe No. 27

4437412

Installation route: 分配阀上左~分配阀前

Length: 780 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

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Diagram Pipe No. 47

4459254

Installation route: 分配阀下~电磁阀(分配阀)

Length: 1,100 mm
Specification: DN10;1SN-06;18MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 美制内螺纹74°内锥

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Diagram Pipe No. 31

4437436

Installation route: 分配阀下左~分配阀下右

Length: 500 mm
Specification: DN10;1SN-6;18MPa
Left fitting: 美制内螺纹74°内锥双六角
Right fitting: 90°美制内螺纹74°内锥

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Diagram Pipe No. 29

4437292

Installation route: 分配阀上右~电磁阀

Length: 730 mm
Specification: DN6;1SN-04;22.5MPa
Left fitting: 美制内螺纹74°内锥
Right fitting: 美制内螺纹74°内锥

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Diagram Pipe No. 18

4356817

Installation route: 分配阀左~铁管(大臂下)

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

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Diagram Pipe No. 26

4449633

Installation route: 分配阀前~分配阀左

Length: 370 mm
Specification: DN6;1SN-04;22.5MPa
Left fitting: 90°美制内螺纹74°内锥
Right fitting: 90°美制内螺纹74°内锥

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Diagram Pipe No. 18

9211395

Installation route: 分配阀下~分配阀右

Length: 1,000 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 美制内螺纹37°内锥

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Diagram Pipe No. 29

4445271

Installation route: 分配阀上左~分配阀下

Length: 1,000 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Diagram Pipe No. 44

4458533

Installation route: 分配阀下~电磁阀(分配阀)

Length: 750 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Diagram Pipe No. 39

4437591

Installation route: 分配阀上左~液压油箱

Length: 950 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Diagram Pipe No. 23

4367000

Installation route: 分配阀下~过渡阀块(分配阀)

Length: 1,000 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Diagram Pipe No. 24

4366734

Installation route: 分配阀下~过渡阀块(分配阀)

Length: 650 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Diagram Pipe No. 12

4383790

Installation route: 分配阀右~铁管(大臂油缸)

Length: 1,670 mm
Specification: DN32;6SH-20;42MPa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

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Diagram Pipe No. 18A

4455532

Installation route: 分配阀下~分配阀右

Length: 1,000 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Diagram Pipe No. 25

4453952

Installation route: 回油铁管(分配阀)~散热器上

Length: 1,020 mm
Specification: DN38;1SN-24;5MPa
Left fitting: Light-series flangeOriginal Chinese: 法兰-轻型
Right fitting: 90° light-series flangeOriginal Chinese: 90°法兰-轻型

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Diagram Pipe No. 32

4437438

Installation route: 分配阀上左~分配阀下

Length: 1,250 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Diagram Pipe No. 33

4437440

Installation route: 分配阀左~分配阀下

Length: 930 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Diagram Pipe No. 18

9221773

Installation route: 分配阀下~分配阀右

Length: 1,000 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Diagram Pipe No. 23

4486601

Installation route: 分配阀下~过渡阀块(分配阀)

Length: 460 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 美制内螺纹37°内锥
Right fitting: 90°美制内螺纹37°内锥

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Based on current published data

Common Repair Questions

Questions appear only when a published record or linked PDF page provides the answer.

How many hoses are currently listed for Hitachi ZX450LC Control Valve?

There are 22 published records. 22 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi ZX450LC Control Valve?

Based on published records with valid lengths, the range is 350–1,700 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX450LC Control Valve?

The most frequent raw specifications in the current published records are: DN6;1SN-04;22.5MPa (7 records), DN10;1SN-06;18MPa (5 records), DN19;4SH-12;42MPa (3 records), DN10;1SN-6;7Mpa (2 records), DN19;1SN-12;10.5MPa (2 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX450LC Control Valve?

Each record keeps the left and right fitting descriptions separate. Current examples: 4368895: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4367008: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4323284: left American female thread, flat-face seal; right 90° elbow, American female thread, flat-face seal. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi ZX450LC Control Valve hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 25 (4368895), Pipe No. 18A (4367008), Pipe No. 40 (4323284), Pipe No. 38 (4459253). Open a record to compare its installation position with the linked manual page.