Precision Valve Solutions for Global Industries

QK Valves – ISO-certified manufacturer of forged steel, thread ball, and flanged valves. Trusted supplier for Hitachi since 2007. Delivering reliability, durability, and precision across 50+ countries.

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About QK Valves

Qiangke Valve Group Co., Ltd. (formerly Wenzhou Xiangjian Valve Co., Ltd.) is a professional industrial valve manufacturer with over 15 years of experience. Based in Wenzhou, China, we specialize in high-performance forged steel valves, thread ball valves, and flanged valves for critical applications.

As a certified supplier for Hitachi, Japan since 2007, we maintain rigorous quality standards across every production phase. Our valves are engineered using premium materials including WCB, SS304, SS316, F11, F22, and A105, ensuring reliability in high-pressure and corrosive environments.

15+

Years in Industry

50+

Countries Served

ISO

Certified Facility

Hitachi

Trusted Supplier Since 2007

Our Products

Engineered for performance, durability, and precision. Explore our range of industrial valves trusted by global leaders.

Y-Type Forged Steel Globe Valve

Material: WCB, SS304, SS316, F11, F22
Pressure: ANSI Class 150–800
Size: 1/2" to 4"
Trim: Standard compliant

2PC WCB Ball Valve with ISO5211 Mounting

Body: Forged WCB
Seal: PTFE, RPTFE
Size: 1/4" to 4"
Standard: API 6D, ISO 5211

Threaded End Ball Valve

Type: Full port, floating ball
Material: SS304, SS316, WCB
Connection: NPT, BSPT
Temp Range: -20°C to 200°C

Flanged Forged Steel Gate Valve

Design: Rising stem, wedge gate
Pressure: Class 150–600
Size: 2" to 12"
Standards: API 600, ASME B16.5

Forged Steel Check Valve

Type: Swing check, lift check
Material: F11, F22, SS316
Size: 1/2" to 6"
Application: Oil & gas, power plants

Forged Steel Angle Valve

Design: 90° flow direction
Material: WCB, A105, SS304
Size: 1/2" to 4"
Pressure: Class 300, 600

3PC Stainless Steel Ball Valve

Body: SS304/SS316
Type: Split body, full port
Size: 1/4" to 3"
Seal: PTFE, Graphite

High-Pressure Forged Valve

Class: Up to 8000 psi
Material: F11, F22, SS316
Application: Hydraulic, petrochemical
Testing: API 598, Shell Test

View All Products on Official Site

Why Choose QK Valves?

Our competitive advantages ensure unmatched quality, reliability, and service.

Hitachi Supplier Since 2007

Trusted by one of the world’s top 500 companies for over 15 years, meeting strict Japanese quality standards.

Integrated Production

Full control from raw material casting to finished valve assembly ensures consistency and traceability.

Standard Trim Material

All valves use standardized, high-quality trim materials for optimal sealing and longevity.

ISO-Certified Facility

Manufacturing complies with international standards, ensuring safety and performance.

15+

Years Experience

50+

Countries Served

1000+

Valve Models

200+

Global Clients

Frequently Asked Questions

What materials do you use for your valves?

We manufacture valves using WCB, SS304, SS316, F11, F22, and A105, depending on application requirements and customer specifications.

Are your valves certified?

Yes, our facility is ISO-certified, and all valves undergo rigorous testing per API 598 and other international standards.

Do you supply to OEMs?

Absolutely. We have been a trusted supplier for Hitachi since 2007 and serve multiple OEMs globally.

What is your production capacity?

With a fully integrated workshop, we can produce over 10,000 units monthly with full traceability and quality control.

Can you customize valves?

Yes, we offer OEM/ODM services with custom materials, sizes, pressure ratings, and certifications.

Get in Touch

For inquiries, quotes, or technical support, visit our official website to contact us directly.

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Contact Information

Address: Shacheng Industrial Zone, Longwan District, Wenzhou, China
Phone: +86-577-86818168 / +86-15605775273
Email: [email protected]
Contact Person: Mr. Casig

Quick Links

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