Import Duplex Strainer — Buy in Bulk from Supplier in China

The duplex strainer from East Source Valve & Fitting Ltd. is a two‑channel filtration unit designed for industrial water‑treatment, chemical processing and oil filtration lines. It incorporates a fast‑release lever that lets operators remove the filter element in seconds, reducing downtime. The internal ball‑valve changeover provides zero‑leakage operation when switching between the twin chambers. Robust construction uses corrosion‑resistant material suited to harsh environments.

While the supplier does not disclose the exact alloy, the typical construction for this class of equipment is stainless steel grade AISI 304, which offers resistance to most chemicals and temperatures up to 120 °C. Standard duplex strainers are offered in nominal diameters DN 50 to DN 200 and carry a pressure rating of PN 16, matching the requirements of most process plants. The mesh screen commonly employed is 100 µm, delivering a balance between flow capacity and particle removal. These industry norms ensure the unit meets the performance expectations of petrochemical and food‑processing facilities.

East Source advertises flexible minimum order quantities and ships the units in reinforced crates under FOB or CIF terms. The listing mentions compliance with ISO and SGS inspection, which can be verified during the order process. Buyers such as plant managers, procurement engineers and maintenance contractors typically select this strainer to protect pumps and heat exchangers from solid ingress. Prospective purchasers should request detailed drawings and certification copies before finalising the contract.

East Source Valve & Fitting Ltd. is headquartered at No.107 Guoshun Road, Fengxian District, Shanghai, China. It is listed as an imported supplier with a harbor trust tier, indicating that basic verification has been completed. The public profile shows no recorded response time, so buyers should anticipate a longer initial contact period.

The company focuses on valve and fitting components for industrial applications, offering products such as duplex strainers, ball valves and pipe fittings. Its catalogue does not disclose production capacity or client list, and the supplier does not provide explicit certifications beyond the generic ISO/SGS claim in the product description. Interested importers are advised to request factory audit reports and sample units to confirm quality.