Length: 1,120 mm
Specification: DN19;4SP-12;31Mpa
Left fitting: Light-series flangeOriginal Chinese: 法兰-轻型
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. 50

4275672

Installation route: 装载斗油缸

Length: 1,150 mm
Specification: DN19;4SP-12;31Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: Light-series flangeOriginal Chinese: 法兰-轻型

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Diagram Pipe No. 50

4290923

Installation route: 装载斗油缸

Length: 1,100 mm
Specification: DN19;4SP-12;31Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: Light-series flangeOriginal Chinese: 法兰-轻型

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Diagram Pipe No. 50

4281986

Installation route: 装载斗油缸

Length: 1,050 mm
Specification: DN19;4SP-12;31Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: Light-series flangeOriginal Chinese: 法兰-轻型

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Diagram Pipe No. 50

4318407

Installation route: 装载斗油缸

Length: 1,170 mm
Specification: DN19;4SP-12;31Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: Light-series flangeOriginal Chinese: 法兰-轻型

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Diagram Pipe No. 102

4274504

Installation route: 小臂(背部)~过渡阀块(装载斗)

Length: 1,600 mm
Specification: DN32;6SP-20;31MPa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: Heavy-series flangeOriginal Chinese: 法兰-重型

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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 EX700 Boom Assembly?

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 EX700 Boom Assembly?

Based on published records with valid lengths, the range is 1,400–2,550 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Hitachi EX700 Boom Assembly?

The most frequent raw specifications in the current published records are: DN32;6SP-20;31MPa (3 records), DN25;4SP-16;31MPa (1 records), DN38;6SP-24;31MPa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Hitachi EX700 Boom Assembly?

Each record keeps the left and right fitting descriptions separate. Current examples: 4250823: left Heavy-series flange; right Heavy-series flange; 4278854: left Heavy-series flange; right Heavy-series flange; 4278855: left Heavy-series flange; right Heavy-series flange. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Hitachi EX700 Boom Assembly hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 10 (4250823), Pipe No. 1 (4278854), Pipe No. 0 (4278855), Pipe No. 38 (4219322). Open a record to compare its installation position with the linked manual page.