Hydraulic line repair data

Hitachi EX50UNA Swivel Joint Hose List

Hitachi EX50UNA Swivel Joint currently has 5 published hose records for checking length, hose specification, left and right fittings, part number, and diagram pipe number.

Hoses: 5 records
Full specifications: 5 records
Systems: 1 systems
Length range: 1,010–1,340 mm

Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 86

4426441

Installation route: 回转接头~液压油箱

Length: 1,230 mm
Specification: DN10;1SN-6;7Mpa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 24

4426426

Installation route: Swivel joint → travel motorOriginal Chinese: 回转接头~行走马达

Length: 1,310 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 23

4426425

Installation route: Swivel joint → travel motorOriginal Chinese: 回转接头~行走马达

Length: 1,340 mm
Specification: DN10;1层纤维-6;14MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 19

4426417

Installation route: Swivel joint → travel motorOriginal Chinese: 回转接头~行走马达

Length: 1,260 mm
Specification: DN12;2SN-8;20.5MPa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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Diagram Pipe No. 48

4426430

Installation route: 回转接头~电磁阀

Length: 1,010 mm
Specification: DN6;1SN-4;7Mpa
Left fitting: 英制内螺纹30°外锥
Right fitting: 英制内螺纹30°外锥

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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 EX50UNA Swivel Joint?

There are 5 published records. 5 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Hitachi EX50UNA Swivel Joint?

Based on published records with valid lengths, the range is 1,010–1,340 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi EX50UNA Swivel Joint?

The most frequent raw specifications in the current published records are: DN6;1SN-4;7Mpa (2 records), DN10;1SN-6;7Mpa (1 records), DN10;1层纤维-6;14MPa (1 records), DN12;2SN-8;20.5MPa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi EX50UNA Swivel Joint?

Each record keeps the left and right fitting descriptions separate. Current examples: 4426441: left 英制内螺纹30°外锥; right 英制内螺纹30°外锥; 4426426: left 英制内螺纹30°外锥; right 英制内螺纹30°外锥; 4426425: left 英制内螺纹30°外锥; right 英制内螺纹30°外锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi EX50UNA Swivel Joint hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 86 (4426441), Pipe No. 24 (4426426), Pipe No. 23 (4426425), Pipe No. 19 (4426417). Open a record to compare its installation position with the linked manual page.