Pipe fittings are key components used to connect, control, change direction, or close pipeline systems, ensuring the safe and efficient operation of fluid transport.
Advantages of grooved pipe fittings Certification & Qualification Certified for grooved pipe fittings and pipeline connectors: CCC certification, EU CE certification. All products are manufactured under a standardized full-process production system. Raw Material Selection All main materials (ductile iron) are sourced from first-tier brand manufacturers. Silicon inoculants are used to ensure the spheroidization level reaches Grade II. Complies with national standard QT450-12, with tensile strength exceeding 500 MPa. Auxiliary Material Selection Bolt mechanical performance reaches Grade 8.8, ensuring bolt quality. National standard self-lubricating EPDM rubber sealing rings. External coating with plastic powder provides strong adhesion and excellent resistance to sunlight and rain. High-strength, high-toughness packaging saves storage space. Equipment & Process Resin sand processing, coated sand vertical molding, high casting precision, spheroidized graphite, bottom pouring process. Flow inoculation ensures product safety performance. CNC chamfering process prevents excessive collision damage. Quality Assurance Each defective product costs 1996 RMB; leakage is penalized at 500 RMB per case. Pressure resistance meets national standards: withstands 4× working pressure = 10 MPa (100 kgf/cm²). Pipe Fittings Classification Raw Materials Quality control is ensured from the source • Premium Jinan Gengchen Iron – Meide's Bread Iron Auxiliary Materials Equipment Process 1 - Advantages of DISA Molding Line • The product utilizes a one-time core-making process with coated sand, resulting in smooth inner and outer walls and a tight, straight seam. • The ovality of the blank is within 50 microns (the finished product has almost no ovality). • The angular error is within 2 degrees. • It fundamentally solves the problem of insufficient diameter (DN) for grooved pipe fittings: (Diameter greater than or equal to the national standard diameter, eliminating the need for flow testing! For example, many manufacturers' 114 series products have 114mm at both ends of the seal, but the middle pipe is only 108mm.) • Produced on a fully automated production line imported from Denmark, the material structure is dense, significantly improving pressure resistance and various comprehensive mechanical properties. • The appearance is more in line with international design, similar to the appearance and structure of top international brands, with high water pressure resistance. • Strict airtightness testing procedures eliminate products with sand holes and air pores. Equipment process - uniform wall thickness DISA automated production line products
Non-Dexta sand production line products have severely uneven wall thickness.
Uniform wall thickness: Weight error within 0.5% for products of the same specification. Equipment process 1: Chamfering and threading Lathe chamfering, black thread (7 threads)
