Length: 650 mm
Specification: DN12;4SP-8;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. 23A

4437944

Installation route: 推土铲手柄~进回油阀

Length: 650 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. 12

4442340

Installation route: 过渡阀块(推土铲)~过渡阀块(控制阀(推土铲))

Length: 450 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 90°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. 13A

4437944

Installation route: 电磁阀~过渡阀块(分配阀)

Length: 650 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. 13

4427152

Installation route: 控制阀(推土铲)~回油铁管(分配阀)

Length: 550 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. 0

4441254

Installation route: 推土铲手柄~过渡阀块(推土铲)

Length: 1,450 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. 32A

4446707

Installation route: 电磁阀(流速切换)~中转接头

Length: 1,750 mm
Specification: DN6;1SN-4;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

9199375

Installation route: 大臂(辅助)~控制阀(辅助)

Length: 2,800 mm
Specification: DN10;2SN-6;34.5MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 45°美制内螺纹37°内锥

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Diagram Pipe No. 5A

4448871

Installation route: 分配阀下~流速切换阀

Length: 1,400 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. 4

4440410

Installation route: 回转接头~右推土铲油缸

Length: 1,900 mm
Specification: DN10;2SN-6;34.5MPa
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. 7A

4448865

Installation route: 电磁阀~流速切换阀

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. 32

4442325

Installation route: 过渡阀块(推土铲)~过渡阀块(控制阀(推土铲))

Length: 300 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. 36A

4438926

Installation route: 控制阀(推土铲)~过渡阀块(推土铲)

Length: 1,150 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. 29

4270597

Installation route: 液压泵~接头(过渡阀块(推土铲))

Length: 900 mm
Specification: DN19;4层纤维-12;3.5MPa
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. 20A

4441255

Installation route: 推土铲手柄~过渡阀块(推土铲)

Length: 1,550 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. 16A

4369451

Installation route: 大臂(辅助)~控制阀(辅助)

Length: 2,800 mm
Specification: DN10;2SN-6;34.5MPa
Left fitting: 美制内螺纹37°内锥
Right fitting: 45°美制内螺纹37°内锥

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Diagram Pipe No. 14

4436299

Installation route: 电磁阀~过渡阀块(分配阀)

Length: 700 mm
Specification: DN6;1SN-04;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. 7

4440431

Installation route: 回转接头~右推土铲油缸

Length: 1,950 mm
Specification: DN10;2SN-6;34.5MPa
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. 15A

4460599

Installation route: 电磁阀~过渡阀块(分配阀)

Length: 600 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. 5

4440419

Installation route: 回转接头~左推土铲油缸

Length: 1,900 mm
Specification: DN10;2SN-6;34.5MPa
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. 6

4440426

Installation route: 回转接头~左推土铲油缸

Length: 1,950 mm
Specification: DN10;2SN-6;34.5MPa
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 ZX120 Attachments?

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 ZX120 Attachments?

Based on published records with valid lengths, the range is 300–4,300 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi ZX120 Attachments?

The most frequent raw specifications in the current published records are: DN6;1SN-4;7Mpa (8 records), DN10;1SN-06;18MPa (6 records), DN10;1SN-6;7Mpa (3 records), DN12;4SP-8;34.5Mpa (2 records), DN6;1SN-04;22.5MPa (2 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi ZX120 Attachments?

Each record keeps the left and right fitting descriptions separate. Current examples: 4442331: left 美制内螺纹74°内锥; right 美制内螺纹74°内锥; 4489054: left 美制内螺纹37°内锥; right 美制内螺纹37°内锥; 4462425: left 美制内螺纹37°内锥; right 90°美制内螺纹37°内锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi ZX120 Attachments hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 29 (4442331), Pipe No. 15 (4489054), Pipe No. 7 (4462425), Pipe No. 20 (4442429). Open a record to compare its installation position with the linked manual page.