**Hangzhou Huahui Valve Co., Ltd. (Hangzhou Valve Factory)**

Hangzhou Huahui Valve Co., Ltd., formerly known as Hangzhou Valve Factory, is a leading Chinese manufacturer specializing in high- and medium-pressure valves, pressure-reducing and temperature-control devices, and related equipment. Established as a state-owned enterprise under the former Ministry of Machinery Industry, the company has evolved into a privately held corporation with a strong reputation in both domestic and international markets.

**Key Information: **

1. **Core Products**

The company produces a wide range of valves, including safety valves, gate valves, globe valves, ball valves, butterfly valves, and oxygen valves. It is particularly renowned for its **pressure-reducing and temperature-control devices**, which are critical in power stations and industrial systems.

2. **Certifications and Standards**

- Holds multiple certifications, including **ASME B&PV Code Section V&IX** for welding qualifications (for materials like SA-335 P91 and P11), enabling compliance with international standards for nuclear and pressure vessel applications.

- Certified by **API 6D** (American Petroleum Institute) and **ISO 9001** for quality management, alongside Chinese licenses for pressure vessel manufacturing (D1/D2 class) and pressure pipeline design.

3. **Global Reach**

Its products are exported to over 20 countries, including the U. S., Canada, France, Brazil, Iran, and South Africa. Major clients include **Sinopec, PetroChina**, and large enterprises like Baosteel and Wuhan Steel.

4. **Facilities and Scale**

- Located in Yuhang District, Hangzhou, with a workforce of 301-500 employees.

- Equipped with advanced testing capabilities, including chemical analysis, non-destructive testing (NDT), and metallographic evaluation, ensuring high product reliability.

5. **Innovation and Development**

The company emphasizes technological advancement and skill development. For instance, its recent ASME certification highlights rigorous training and technical assessments for welders, reinforcing its competitive edge in international markets.

**English Name Variations**

The company is sometimes referred to as **Hangzhou Worldwise Valve Co., Ltd. ** in official documents, such as product manuals, but its primary international branding aligns with **Hangzhou Huahui Valve Co., Ltd. **

**Contact Information**

- Address: No. 34, Xianlin East Road, Yuhang District, Hangzhou, Zhejiang, China.

For further details, refer to the company's official website or industry certifications.