VALVE BLOCK FOR HYDROGEN GAS AND METHOD FOR MANUFACTURING THE SAME

Title:

VALVE BLOCK FOR HYDROGEN GAS AND METHOD FOR MANUFACTURING THE SAME

Document Type and Number:

Japanese Patent JP2021110351

Kind Code:

A

Abstract:

To provide a valve block for a hydrogen gas that can suppress effect on an inner surface of a flow channel which is caused by aluminum anodic oxidation treatment while keeping corrosion resistance of an outside surface.SOLUTION: A valve block 1 for a hydrogen gas includes: a valve block body 2 of which outside surface is subjected to aluminum anodic oxidation treatment; and a flow channel 3 for a hydrogen gas which is formed in the valve block body. The flow channel includes seal surfaces 11a, 11b at the inner surface thereof. The seal surfaces are a machined surface.SELECTED DRAWING: Figure 1

Inventors:

SUZUKI YUTAKA
NINOMIYA MAKOTO
OKAMOTO MASAYOSHI
YAMASHITA YOJI
INOUE MASAAKI

Application Number:

JP2020001246A

Publication Date:

August 02, 2021

Filing Date:

January 08, 2020

Export Citation:

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