Import Di Pipe Fittings, Double Flanged Hatch-Boxe — Buy in Bulk from Supplier in China

These double flanged hatch-box fittings are manufactured from ductile iron grade 500-7 (GGG-50), meeting ISO2531, BS EN545, BS EN598, AWWA C219, AWWA C110, and ASME B16.42 standards. Unlike standard bends, hatch-box fittings are designed for access points in buried pipelines, allowing inspection and maintenance without excavation. The double flange design enables bolted access covers, with sealing surfaces engineered to maintain pressure integrity during operation. Internal linings and external coatings are selected based on fluid type and corrosion risk.

Ductile iron in this grade provides a balance of strength and ductility, with a minimum tensile strength of 500 MPa and elongation of 7%. The hatch-box geometry includes a reinforced top section to withstand soil loading and vehicle traffic when installed under roads. Standard internal linings include cement mortar and sulphuric resistance cement, while external coatings range from zinc-bitumen to dual epoxy systems. These specifications align with typical requirements for municipal wastewater and stormwater infrastructure in North America and Europe.

These fittings are primarily used by civil engineering contractors for sewer rehabilitation projects, water utilities managing aging networks, and industrial facilities requiring maintenance access points. They are packed in plastic film over wooden pallets, suitable for container shipping. Trade terms typically involve FOB China port or CIF destination, with lead times of 30 to 45 days. Buyers should specify the required access cover load rating, internal lining type, and coating thickness, as these are not standardized across applications.

Jilin Senfeng Pipe Co., Ltd. is based in Panshi, Jilin Province, China, with a registered address at B-1, Jiancaijiayuan, Fukang Road. The company is classified as a harbor-tier supplier, indicating verified production capacity and export experience. There is no public information on years in operation, employee count, or annual turnover. The listing confirms manufacturing capability for ductile iron pipe fittings but does not state certifications beyond compliance with international standards. No client names, project references, or third-party audit reports are provided.

The supplier's profile indicates production focus on ductile iron fittings with flanged connections, aligned with global infrastructure standards. Response metrics show no recorded response rate or average response time, suggesting limited buyer communication activity. Buyers should treat this as a manufacturer with documented production capability but unverified customer service responsiveness. Direct verification of production processes, testing protocols, and quality control procedures is recommended before placing orders.