Company News_Qingdao Qingfa Ship Equipment

Material and corrosion resistance of marine stop valves

The valve body mainly uses ZG275-485 cast steel, 20Cr13 stainless steel and aluminum bronze valve stems.

2025

Structure and function of marine stop valves

Straight-through (A/AS) valves use a horizontal flow path design, while right-angle (B/BS) valves use a 90° turning flow path.

2025

Service suitability of marine stop valves

Marine stop valves are valve devices specifically manufactured for ships.

2025

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Integrating product research and development, manufacturing, and sales, specializing in the production of various marine valves

Qingdao Qingfa Chuanbo Shebei Zhizao

Add: Qingdao City, Jimo District, Qingdao City, Jimo District S503
Manager Cao:+86-15020079366
Email:sales@qdqingfa.com

Business license

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