
FM UL Approved Grooved Rigid Couplings. FM UL Certified: Products hold FM, UL, CE, CUL, and ISO certifications for global compliance. High Strength Material: Made of ASTM A536 Grade 65-45-12 ductile iron with 65,000 psi tensile strength. Fast Installation: Installs 3-4 times faster than welded joints using only a wrench or spanner. Leak Tight Seal: EPDM rubber gaskets ensure leak-free joints under pressure up to 500 PSI. OEM ODM Support: Full OEM and ODM services available for custom surface treatments and designs. Wide Pressure Range: Available in 300 PSI and 500 PSI ratings (2.5MPA) for diverse applications. Advanced Manufacturing: Equipped with 8 automation molding lines and 7 painting lines for quality control. Global Export: Exported to South America, Europe, Southeast Asia, and Middle East markets.