About Chenway Process

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Hunan Chenwei Environmental Engineering Co., Ltd.

Hunan Chenwei Environmental Engineering Co., Ltd. operates two specialized industrial business lines: WSA process equipment and sulfur-containing gas treatment systems, and high-performance fluoroplastic materials and custom-machined components.
Our fluoroplastic products include PTFE, PFA, PVDF, FEP, PEEK, PCTFE and UHMW-PE sheets, rods, tubes and drawing-based parts for chemical processing, semiconductor and high-purity systems, pumps, valves, sealing and corrosion-resistant equipment. We control raw materials, production equipment, process conditions and the manufacturing environment to maintain consistent product quality.

2005

Established in 2005

86+

Technical and Professional Staff

1000+

Customers Served

WSA Process Technology

The company develops and supplies WSA wet-process sulfuric acid systems, including project design, equipment fabrication, installation, commissioning, and operation and maintenance support.

Quality Control

◆ The company maintains ISO 9001, ISO 14001 and ISO 45001 management system certifications.
◆ Standardized management procedures support consistent product quality and project delivery.
◆ Product quality and engineering services are recognized by customers in China and international markets.

Technical Team

◆ The company works with industry specialists and research institutes.
◆ The technical team addresses complex industrial off-gas compositions and treatment-efficiency challenges.

Technology Features

◆ Chenwei WSA technology achieves a sulfur recovery rate of more than 99%.
◆ The process does not generate secondary waste under normal operating conditions.
◆ The system can treat sulfur-containing gases including H₂S, SO₂, CS₂, COS and mercaptans (R-SH).

Patent Certificate

Benefits of Fluoroplastic Products

✅ Production of fluoroplastic sheets, rods and tubes in PCTFE, PFA, PVDF, PTFE, FEP, PEEK and UHMW-PE
✅ Virgin raw materials and controlled production processes
✅ Standard stock shapes and custom components manufactured from drawings
✅ Integrated supply of fluoroplastic materials and corrosion-resistant industrial components