High-Quality Industrial Valves for Global Industries

Zhejiang Guangwo Valve Co., Ltd. manufactures premium gate, globe, check, ball valves, and strainers in carbon steel, alloy steel, and stainless steel. Compliant with API, ANSI, DIN, and GB standards.

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70+ Staff

Skilled workforce ensuring precision and quality

100+ Machines

Advanced manufacturing and testing equipment

Wenzhou, China

Strategically located production facility

About GW Valves

Zhejiang Guangwo Valve Co., Ltd. was founded in 2016 and is located in Wenzhou, China. The company covers an area of 40,000 square meters and employs over 70 skilled staff with more than 100 sets of advanced manufacturing and testing facilities.

We specialize in the design and production of industrial valves including gate valves, globe valves, check valves, butterfly valves, plug valves, and strainers. Our products are made from carbon steel, alloy steel, and stainless steel, and are manufactured in compliance with international standards such as ANSI, API, DIN, GOST, and GB.

API 600 ASME B16.34 EN Standards

Our Products

Engineered for reliability, durability, and performance in demanding industrial environments

Pressure Sealed Bonnet Gate Valve

Standard: API600, ASME B16.34
Material: WC6
Size: 2″~16″
Pressure: CL 900–2500
Temp: -29°C~538°C

BS1868 Swing Check Valve

Standard: BS1868, API 594
Application: Pump protection
Function: Prevent backflow
Design: Swing disc
Sealing: Metal seated

Pressure Sealed Bonnet Check Valve

Use: High-pressure steam
Service: Catalytic reformers
Design: Pressure seal
Temp: High temp applications
Standard: API 598

Triple Offset Butterfly Valve

Standard: API609, ASME B16.34
Size: 2″~56″
Pressure: CL 150–300
Seal: Laminated resilient
Leakage: Zero leakage design

Top Entry Trunnion Ball Valve

Standard: API 6A, API 6D
Design: Trunnion mounted
Seat: Soft, metal, composite
Function: Double block & bleed
Compliance: ISO 17292

Duplex 4A 5A 6A Gate Valve

Material: 4A, 5A, 6A
Size: 10", 300LB
Type: OS&Y, flanged
Standard: API 600
Body: Cast steel

1.4408 DIN Gate Valve PN16

Standard: EN 1984, EN 1092-1
Material: 1.4408 (Stainless)
Size: DN32~DN1200
Pressure: PN10~PN40
Test: EN 12266-1

WCB, A105N, CF8, CF8M Y Strainer

Type: Y-type filter
Use: Water, oil, gas lines
Protects: Pumps, valves
Mesh: 10–200 mesh/cm²
Installation: Inlet recommended

BS1873, API623 Gear Globe Valve

Standard: BS1873, API 623
Size: 2″~24″
Pressure: CL150–2500
Temp: -196°C~600°C
Design: Outside screw & yoke

Forged Check Valve

Material: Forged steel
Standard: API, ANSI
Design: Compact, high strength
Use: High-pressure systems
Sealing: Precision machined

Knife Gate Valve

Use: Slurry, viscous media
Design: Sharp gate cuts through solids
Sealing: Resilient or metal
Standards: API, ANSI, DIN
Operation: Manual, gear, actuated

Plug Valve

Type: Lubricated & non-lubricated
Material: Carbon, stainless, alloy
Size: 1/2″~24″
Pressure: CL150–900
Application: On/off, throttling

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Why Choose GW Valves?

Engineered excellence backed by quality, compliance, and innovation

Global Standards

Compliant with API, ASME, ANSI, DIN, EN, GB, and GOST standards for international acceptance.

Rigorous Testing

Every valve undergoes API 598 and EN 12266-1 inspection and pressure testing.

Diverse Materials

WCB, LCB, CF8, CF8M, 1.4408, 4A, Monel, and duplex alloys for all media types.

Global Delivery

Exported to oil & gas, power, water, and chemical industries worldwide.

Frequently Asked Questions

What standards do GW Valves comply with?

Our valves are manufactured according to API 600, API 6D, ASME B16.34, BS1868, DIN, EN, GB, and GOST standards, ensuring global compatibility and safety.

What materials are available for your valves?

We offer carbon steel (WCB, A105), low-temperature steel (LCB), stainless steel (CF8, CF8M, 1.4408), alloy steel (WC6, WC9), and special alloys like Monel, 4A, 5A, and 6A.

Can you customize valves for specific applications?

Yes, we provide OEM and ODM services. Our engineering team can customize design, materials, pressure ratings, and actuation based on your project requirements.

What is the typical delivery time?

Standard valves are delivered within 30–45 days. Custom orders may take 45–60 days depending on complexity and quantity.

Do you provide technical support and documentation?

Yes, we provide full technical support, installation guides, material test reports (MTR), and certificates of compliance (CoC) with every shipment.

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