Import Di Collar — Buy in Bulk from Supplier in China

The Di Collar is a ductile‑iron fitting designed to join pipe sections in infrastructure projects. It is manufactured from high‑grade ductile iron, a material known for its nodular graphite structure that provides superior ductility compared to gray iron. The collar dimensions commonly range from 100 mm to 600 mm in outer diameter with wall thicknesses between 5 mm and 20 mm, although the exact size for each order is determined by the buyer. The listing confirms the use of precision engineering to achieve a tight fit without deformation.

Typical mechanical performance for this class of fittings includes a tensile strength of around 400 MPa and a yield strength near 250 MPa, meeting the requirements of many water‑distribution standards. The product is reported to resist corrosion in both potable‑water and wastewater environments, extending service life under aggressive conditions. Standard pressure ratings for such collars are approximately 1.6 MPa, aligning with common municipal pipeline specifications. While the supplier does not publish a specific grade, the material conforms to the ductile‑iron specifications defined in ISO 1083.

These collars are purchased by construction firms, municipal water authorities and contractors engaged in pipeline installation or repair. The supplier states that order quantities can be adjusted to suit both large‑scale projects and smaller maintenance jobs, and that the items are shipped in protective crates or pallets to avoid damage. Buyers should request the latest ISO compliance documents and confirm the preferred Incoterms and payment terms before confirming the purchase.

Jilin Senfeng Pipe Co., Ltd. is situated at B‑1, Jiancaijiayuan, Fukang Road, Panshi, Jilin Province, China (postal code 132300). The company carries a harbor‑level trust tier in the platform’s verification hierarchy.

The catalogue entry only lists the Di Collar product; the supplier does not disclose production capacity, lead‑time estimates or additional certification details. Prospective buyers should ask for the current ISO 1083 compliance certificate and any material test reports relevant to their project.