Import Air Separation Packing — Buy in wholesale FOB from Supplier in China

Air separation packing is structured tower packing used in cryogenic air separation units (ASUs) to maximise gas-liquid contact surface area while minimising pressure drop across the column. Hubei Sanli Fengxiang Technology Co., Ltd acts as an agent for Tianjin Univtech Co., Ltd, a research entity designated as a national technical centre for chemical packing tower and internal fittings since 1990. The product line includes conventional ASU packing, high-throughput variants for large-scale plants, and copper-made packing for oxygen-rich sections where aluminium alloy presents ignition risk. The source description specifies two standard corrugation angles (45 degrees, designated Y), variable shape profiles, low pressure-drop characteristics, and a maximum fabricated diameter of 4800 millimetres.

The packing is typically manufactured from aluminium alloy 3003 or 5052 for standard cryogenic service, with copper C11000 or C12200 specified for oxygen-enriched zones where material compatibility with high-purity oxygen is critical. The 45-degree corrugation angle is a standard configuration favouring liquid distribution efficiency over throughput; steeper angles (typically 60 degrees, designated X) trade some mass-transfer efficiency for higher capacity and reduced liquid hold-up. The plain-edge design of the conventional series reduces interfacial gas-liquid flow resistance, while the high-throughput series employs curved edge transitions to reduce inter-tray liquid accumulation and extend the operating range before flooding. The copper variant offers higher mass-transfer coefficients and improved safety margins in oxygen-rich operation compared with aluminium alloy alternatives.

Primary applications include cryogenic distillation columns in steel-plant oxygen plants, petrochemical syngas processing, and large-scale industrial gas production facilities. Buyers are typically engineering-procurement-construction contractors, ASU original equipment manufacturers, and industrial gas companies undertaking column retrofits or new builds. The maximum 4800 millimetre diameter indicates capability for world-scale ASU columns. Trade terms, minimum order quantities, and specific alloy certifications are not stated in the source and must be confirmed directly with Hubei Sanli Fengxiang Technology Co., Ltd.

Hubei Sanli Fengxiang Technology Co., Ltd is located at Jinrong Block, Binhu District, Wuxi, Jiangsu Province, China, postal code 214000. The company operates as an agent or distributor for Tianjin Univtech Co., Ltd rather than as the original manufacturer. Tianjin Univtech holds historical significance as a national technical centre for chemical packing tower and internal fittings, with its high-efficiency packing column technology listed under China's Eighth and Ninth Five-Year Plan national achievements. The response rate is 0.00 percent with zero average response hours, indicating no platform-mediated buyer engagement is recorded.

The supplier's trust tier is listed as harbour, which provides a baseline platform verification but does not constitute engineering or financial due diligence. No information on workforce size, annual turnover, quality-management system certifications (ISO 9001, ASME, etc.), or specific client references is present in the source. Buyers should verify whether Hubei Sanli Fengxiang holds authorisation to represent Tianjin Univtech in export markets, and whether after-sales technical support, spare-part availability, and field installation guidance are within their scope or must be sourced separately from the manufacturer in Tianjin.