Shanghai Qinghe Machinery Co., Ltd.

Shanghai Qinghe Machinery Co., Ltd. (上海清河机械有限公司) is a specialized manufacturer of high-pressure pump fluid ends and related parts, as well as API 6A wellhead connectors, valves, and API 16C rigid and articulated choke-and-kill lines, based in Jiading District, Shanghai, China. The company is located at No. 268 Delixi Road, Nanxiang Town, Jiading District, Shanghai. Qinghe Machinery holds API 6A, API 16C, API Q1, and ISO 9001:2015 certifications. Under API 6A (License 6A-1709), the scope includes flanged connectors, other end connectors, tees and crosses, and valves at PSL 1, 2, and 3. Under API 16C (License 16C-0411), the scope covers rigid choke and kill lines and articulated choke and kill lines. The company is best known as a manufacturer of fluid end assemblies (液力端总成) for high-pressure frac pumps — fluid ends are the core pressure-containing component of a fracturing pump, manufactured from alloy steel (SAE 4330V, 4330VMOD, 30CrNi3.5MoV) and stainless (17-4PH, 15-5PH). Qinghe's primary customer for fluid ends is Halliburton Energy Services. The company was acquired by Haimo Technologies Group Corp. (stock code: 300084, Shenzhen) to form the leading fluid end assembly business in China.