Import 2sk Two Stage Water Ring Vacuum Pump — Buy in Bulk from Supplier in China

The 2SK two stage water ring vacuum pump from Zibo Vacuum Equipment Plant Co., Ltd. is a liquid-ring type machine built to achieve deeper vacuum levels than single-stage alternatives. Its two-stage impeller configuration allows continuous suction across a broader pressure range, with typical ultimate vacuum reaching 4-35 mbar absolute, depending on operating temperature and sealant conditions. The pump body and impellers are generally cast from grey iron or stainless steel, materials selected for resistance to the cavitation erosion common in water ring operation. Sealant flow rates vary by model size but这首歌， but standard units typically consume 0.5-2.5 m³/h of service liquid per kW of motor power.

Water ring vacuum pumps operate by forming a rotating liquid piston inside an eccentric casing; the 2SK design splits this compression across two stages to improve thermodynamic efficiency at low suction pressures. The water ring technology allows handling of saturated vapours and minor liquid carryover without mechanical damage, a significant advantage over dry pumps in chemical and pharmaceutical processes. Typical suction capacity ranges from 30 m³/h to 1,200 m³/h for standard 2SK models, with motor ratings from 1.5 kW to 45 kW. Bearing arrangements follow ISO 281 life calculations, with grease-lubricated rolling bearings standard and oil-lubricated options available for continuous duty cycles exceeding 16 hours daily.

Buyers in chemical processing, pharmaceutical manufacturing, and food dehydration use these pumps for vacuum distillation, solvent recovery, freeze drying, and degassing operations. The pump's tolerance for water vapour makes it particularly suited to processes where condensable gases dominate. Shandong Province, where Zibo Vacuum Equipment Plant Co., Ltd. is located, hosts a concentrated cluster of vacuum equipment manufacturers with access to foundry and machining supply chains. Importers should confirm motor efficiency class, flange orientation, and whether a gas-liquid separator and heat exchanger are included as standard or optional accessories.

Zibo Vacuum Equipment Plant Co., Ltd. operates from No.160 Shuangshan Street in Zibo, Shandong Province, China, a region with established metalworking and pump manufacturing infrastructure. The company is classified as an imported-tier supplier with harbour trust status. The listing indicates no response rate data and zero average response hours, which suggests limited transactional history on the platform or unconfigured communication settings. No workforce size, annual revenue, year of establishment, or client references are provided in the source material.

The supplier's profile does not state ISO 9001, CE marking, or other certification claims, and buyers should request current quality system documentation directly. Shandong's vacuum equipment sector generally serves domestic chemical and power industries, with export capacity varying significantly between manufacturers. The address places the company in Zibo's central district, with proximity to Qingdao Port for sea freight. Importers should verify factory audit reports, reference installations, and whether the company manufactures the 2SK range in-house or sources impellers and castings from subcontractors.