Import Brass Safety Clamps Din2817/ En14420-3 — Buy in wholesale FOB from Supplier in China

Chang Cheng Precission Forging manufactures brass safety clamps conforming to DIN 2817 and EN 14420-3 standards for industrial hose coupling assemblies. These forged brass clamps secure hose connections in pressurised fluid and pneumatic transfer systems, with the brass composition providing inherent corrosion resistance against water, petroleum distillates and mild chemicals. The DIN 2817 standard governs clamp dimensions, bolt patterns and working pressure ratings, while EN 14420-3 specifies safety clamp designs for composite hose fittings and their pressure retention capabilities.

The clamps are precision-forged from brass alloy, a material choice that balances ductility for reliable clamping force with sufficient hardness to maintain thread integrity under repeated torque cycles. Standard brass for this class of hardware typically uses CuZn30 or CuZn35 alloy grades, offering tensile strength in the range of 300-400 MPa. The forged construction, as opposed to casting, yields finer grain structure and eliminates porosity, critical for pressure-containing components. Typical surface finish is natural brass colour with machined bearing faces; optional nickel or chrome plating may be specified for marine or highly corrosive environments, though the supplier does not confirm available finishes.

These safety clamps serve oil and gas field operations, chemical processing plants, shipboard fluid systems and construction equipment hydraulic circuits. Buyers include OEM hose assembly manufacturers, industrial maintenance contractors and fluid handling distributors. The clamps are used with corrugated or smooth-bore hoses in sizes from DN 25 to DN 200, depending on clamp series. For procurement, buyers should confirm with Chang Cheng Precission Forging the exact pressure rating, bolt size and hose compatibility range, as these operational parameters are not stated in the listing.

Chang Cheng Precission Forging is based in Yongkang, Zhejiang Province, China, a region with established metalworking and hardware manufacturing infrastructure. The company operates under a harbor trust tier, indicating a baseline marketplace presence without additional verification layers. The listing provides no response rate or average response time data, suggesting limited transactional history visibility on the platform. The supplier specialises in precision-forged brass components, with these safety clamps representing a product line targeting industrial fluid handling markets.

The company profile does not disclose year of establishment, production capacity, workforce size, revenue figures, or specific client references. No certification claims (ISO, CE, or material test reports) are stated. Buyers should conduct independent due diligence on Chang Cheng Precission Forging's forging capabilities, quality control documentation, and previous export experience before committing to orders. Direct communication with the supplier is essential to verify production lead times, sample availability, and whether third-party inspection is accommodated.