Import Electrofusion Coupler — Buy in Bulk from Supplier in China

The Electrofusion coupler from Cangzhou Mingzhu Plastic Co., Ltd. is a polyethylene fitting designed for joining HDPE pipes using an embedded electrical resistance coil. It is manufactured to accommodate pipe diameters ranging from 20mm to 630mm, with pressure ratings up to PN16. The coupler's internal coil is precisely calibrated for uniform heat distribution during fusion, ensuring a monolithic joint with no leakage potential under operational stress.

The base material is high-density polyethylene (HDPE) conforming to ISO 4427 standards, with a minimum density of 0.941 g/cm³. The electrofusion coil is typically made of nickel-chromium alloy, insulated with a thermoplastic layer to prevent short-circuiting. These couplers are produced without recycled content and are free from additives that compromise long-term creep resistance. In industrial practice, such fittings are preferred over mechanical joints in buried or high-pressure systems due to their resistance to environmental stress cracking.

These couplers are commonly purchased by contractors in municipal water networks, natural gas distribution systems, and industrial fluid transport projects. Buyers typically order in batches of 100 or more units, packaged in cartons of 10 to 20 pieces with individual barcodes. Trade terms are usually FOB Tianjin or CIF destination port, with lead times averaging 15 to 25 days after deposit. A certificate of conformity is provided per batch, but material test reports must be requested separately.

Cangzhou Mingzhu Plastic Co., Ltd. is a manufacturer based in Cangzhou, Hebei Province, China, producing plastic pipe fittings for water, gas, and industrial applications. The company is listed as an imported supplier with harbor trust tier, indicating verification of export activity and physical address. There is no public data on years in operation, workforce size, or annual turnover. The listing does not claim ISO certification or client references.

The supplier does not provide details on production capacity, R&D capability, or quality control protocols beyond the product description. No third-party audit reports or test certificates are referenced in the listing. Responses to buyer inquiries have not been recorded, suggesting limited engagement with international buyers. The company's focus appears to be on volume production rather than technical support or customization.