Length: 650 mm
Specification: DN19;1SN-12;7Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

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Diagram Pipe No. 20

4313427

Installation route: 先导泵~控制阀(辅助)

Length: 1,000 mm
Specification: DN13;1SN-08;16MPa
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. 29

9190862

Installation route: 分配阀前~过渡阀块(分节大臂)

Length: 900 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. 7A

4416328

Installation route: 分节大臂踏板~过渡阀块(踏板)

Length: 2,700 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. 16A

4420567

Installation route: 分配阀左~控制阀(分节大臂)

Length: 1,750 mm
Specification: DN19;4SP-12;34.5Mpa
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. 6A

4389021

Installation route: 分节大臂踏板~过渡阀块(踏板)

Length: 2,700 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. 0

4427781

Installation route: 分配阀前~电磁阀

Length: 1,050 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 90°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. 30

9207619

Installation route: 分配阀右~铁管(流速切换)

Length: 1,100 mm
Specification: DN19;4SP-12;34.5Mpa
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. 6

9232964

Installation route: 分节大臂踏板~过渡阀块(踏板)

Length: 2,700 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. 16

9221908

Installation route: 分配阀左~控制阀(分节大臂)

Length: 1,750 mm
Specification: DN19;4SP-12;34.5Mpa
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. 6

4465401

Installation route: 电磁阀~电磁阀(进回油阀)

Length: 5,800 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

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Diagram Pipe No. 30A

4464046

Installation route: 分配阀右~铁管(流速切换)

Length: 1,100 mm
Specification: DN19;4SP-12;34.5Mpa
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. 14A

4464044

Installation route: 分配阀左~铁管(流速切换)

Length: 590 mm
Specification: DN19;4SP-12;34.5Mpa
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. 12

4439953

Installation route: 进回油阀~电磁阀(进回油阀)

Length: 550 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 90°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. 29A

4437907

Installation route: 分配阀前~过渡阀块(分节大臂)

Length: 900 mm
Specification: DN6;1SN-04;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. 14

9207618

Installation route: 分配阀左~铁管(流速切换)

Length: 590 mm
Specification: DN19;4SP-12;34.5Mpa
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. 7

9232965

Installation route: 分节大臂踏板~过渡阀块(踏板)

Length: 2,700 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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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 ZX370 Attachments?

There are 7 published records. 7 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi ZX370 Attachments?

Based on published records with valid lengths, the range is 350–1,000 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX370 Attachments?

The most frequent raw specifications in the current published records are: DN6;1SN-04;22.5MPa (3 records), DN13;1SN-08;16MPa (2 records), DN10;1SN-06;18MPa (1 records), DN19;1SN-12;7Mpa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX370 Attachments?

Each record keeps the left and right fitting descriptions separate. Current examples: 4451995: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥; 4437944: left 美制内螺纹74°内锥; right 90°美制内螺纹74°内锥; 4442331: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi ZX370 Attachments hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 17 (4451995), Pipe No. 13 (4437944), Pipe No. 16 (4442331), Pipe No. 27 (4452733). Open a record to compare its installation position with the linked manual page.