Hydraulic line repair data

Caterpillar CAT®312B Control Valve Hose List

Coverage details

Hoses: 6 records
Full specifications: 6 records
Systems: 1 systems
Length range: 440–2,050 mm

Current system

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Hose repair details

Hose Length and Fitting List

Diagram Pipe No. 56

135-1246

Installation route: 分配阀左~蓄能器电磁阀(液压油箱后)

Length: 2,050 mm
Specification: DN6;-4;19.2Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 56

108-7228

Installation route: 分配阀左~蓄能器电磁阀(液压油箱后)

Length: 1,850 mm
Specification: DN6;-4;10.3Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 60

108-7285

Installation route: 分配阀前~分配阀前

Length: 440 mm
Specification: DN6;-4;10.3Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 42

108-7237

Installation route: 分配阀下~蓄能器电磁阀(液压油箱后)

Length: 1,950 mm
Specification: DN6;-4;10.3Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 42

7I-0918

Installation route: 分配阀~蓄能器电磁阀(液压油箱后)

Length: 2,000 mm
Specification: DN6;-4;10.3Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 60

108-7285

Installation route: 分配阀前~分配阀下

Length: 440 mm
Specification: DN6;-4;10.3Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 58

129-5923

Installation route: 分配阀下~蓄能器电磁阀(液压油箱后)

Length: 1,400 mm
Specification: DN6;-4;19.2Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 55

5I-4010

Installation route: 分配阀下~分配阀前

Length: 400 mm
Specification: DN10;-6;10.3Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 55

5I-4010

Installation route: 分配阀下~分配阀下

Length: 400 mm
Specification: DN10;-6;10.3Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 51

108-7153

Installation route: 分配阀前~分配阀后

Length: 450 mm
Specification: DN6;-4;10.3Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 51

108-7153

Installation route: 分配阀后~分配阀下

Length: 450 mm
Specification: DN6;-4;10.3Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 8

4I-1434

Installation route: 分配阀下~蓄能器电磁阀(液压油箱后)

Length: 1,780 mm
Specification: DN10;-6;10.3Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

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Diagram Pipe No. 6

139-1759

Installation route: 分配阀前~控制阀(分配阀右下)

Length: 607 mm
Specification: DN19;1SN-12;8.7Mpa
Left fitting: 45°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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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 Caterpillar CAT®312B Control Valve?

There are 6 published records. 6 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®312B Control Valve?

Based on published records with valid lengths, the range is 440–2,050 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®312B Control Valve?

The most frequent raw specifications in the current published records are: DN6;-4;10.3Mpa (5 records), DN6;-4;19.2Mpa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Caterpillar CAT®312B Control Valve?

Each record keeps the left and right fitting descriptions separate. Current examples: 135-1246: left 美制内螺纹37°锥; right 美制内螺纹37°锥; 108-7228: left 美制内螺纹37°锥; right 美制内螺纹37°锥; 108-7285: left 美制内螺纹37°锥; right 美制内螺纹37°锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Caterpillar CAT®312B Control Valve hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 56 (135-1246), Pipe No. 56 (108-7228), Pipe No. 60 (108-7285), Pipe No. 42 (108-7237). Open a record to compare its installation position with the linked manual page.