Precision Marine & Industrial Valves

Manufacturer of JIS, DIN, API, BS, GB standard valves including globe, gate, angle, check, butterfly, air vent heads, strainers, and mud boxes. Trusted since 1989 in Qingdao, China.

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Marine Applications

Designed for ships, offshore platforms, and marine systems with corrosion resistance and durability.

Industrial Use

Ideal for petroleum, chemical, power, and metallurgical industries requiring high-performance valves.

Global Standards

Compliant with JIS, DIN, API, BS, GB, CB, CBM, AS standards for international reliability.

Who We Are

Blue Sky, a professional marine machinery manufacturer established in 1989, has been focusing on valves, air vent heads, and fittings for over 25 years in Qingdao, China. We are committed to delivering high-quality, reliable valve solutions for marine and industrial applications worldwide.

Our expertise spans across globe valves, angle valves, gate valves, SDNR valves, check valves, butterfly valves, air vent heads, and strainers, manufactured to meet international standards including JIS, DIN, API, BS, and GB.

25+ Years

Industry Experience

2000+ m²

Warehouse Space

Our Capabilities

Engineered for performance, durability, and global compliance.

Advanced Processing

120+ processing staff, 24 senior engineers, 12 R&D engineers, and precision machining equipment ensure top-quality valve production.

Large Inventory

Over 2000 sqm warehouse with ex-stock valves for gate, globe, butterfly, bronze, and air vent heads — enabling fast delivery.

Custom Packaging

In-house packing workshop ensures all valves are securely packed in plywood cases for safe air, sea, or courier transport.

Quality Assurance

Rigorous inspection processes and compliance with international standards guarantee reliability and safety.

Product Catalog

High-performance valves for marine and industrial applications.

JIS Cast Iron Angle Valve

Model: JIS F7306 5K

Durable cast iron construction for marine systems. Ideal for tight-space installations with reliable flow control.

JIS Cast Steel Globe Valve

Model: JIS F7313 20K

High-pressure rated globe valve with excellent sealing performance for steam and liquid systems.

DIN CAST BRONZE SWING CHECK VALVE PN10/PN16

DIN Cast Bronze Check Valve

Model: PN10/PN16

Swing-type check valve prevents backflow in pipelines. Corrosion-resistant bronze for long service life.

Marine Air Vent Head

Model: 53-ON/OS

Essential for tank ventilation on ships. Ensures pressure balance and prevents vacuum formation.

JIS Mud Box

Model: F7203 5K/10K

Used in bilge and ballast systems to collect debris and protect pumps. Flanged connection for easy maintenance.

API Cast Iron Globe Valve

Class: 125/150/300LB

API-compliant globe valve for industrial pipelines. Robust design for high-cycle applications.

DIN Cast Steel Globe Valve

Model: PN6/PN10

Versatile globe valve for water, oil, and gas systems. Precision-machined for tight shut-off.

BS Flanged Globe Valve

Model: PN16

British Standard compliant valve for industrial process control. Durable and leak-proof design.

View Full Product Catalog

Frequently Asked Questions

What materials are your valves made from?

Our valves are manufactured using cast iron, ductile iron, cast steel, cast bronze, forged brass, stainless steel, and forge steel, depending on application requirements.

Which international standards do you comply with?

We produce valves according to JIS, DIN, API, ANSI, BS, GB, CB, CBM, and AS standards to ensure global compatibility and safety.

Do you offer custom valve solutions?

Yes, with 12 R&D engineers and advanced machining capabilities, we can customize valves to meet specific client requirements.

How do you ensure product quality?

We use precision machining equipment and rigorous inspection processes, including pressure testing and material verification, to ensure every valve meets our high standards.

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