Jiangsu Junlong Fluid Machinery Co., Ltd.

Jiangsu Junlong Fluid Machinery Co., Ltd. has specialized in precision metal bellows for more than twenty years, operating from an 18-mu self-owned plant with in-house research, design, and manufacturing, with over 90 percent of key processes completed internally.

The company produces four major families covering nearly ten thousand specifications: bellows for valves, sealing bellows, sensing and elastic element bellows, and welded metal bellows. Welded bellows serve high precision, high sealing, and high sensitivity duties, while hydraulically formed bellows address pressure compensation, sealing isolation, and industrial connection, with capabilities spanning DN10 to 1200 and temperatures from -253 to +800 degrees Celsius.

Applications include globe, safety, control, and regulating valves, petrochemical pipelines, aerospace, biopharmaceutical equipment, semiconductor manufacturing, new energy installations, and nuclear power. The company is certified to ISO 9001, ISO 14001, and ISO 45001, supported by CNC machining centers, professional laboratories, and testing to ISO, API, BS, and GB standards.