Grooved Fittings and Grooved Flexible Coupling

Grooved Fittings and Grooved Flexible Coupling. FM/UL Certified Quality: Products hold FM, UL, CE, and ISO9001 certifications for fire fighting systems. Fast Installation: Couplings install 3-4 times faster than welded joints using only a wrench. Ductile Iron Material: Made from ASTM A536 Grade 65-45-12 ductile iron with high tensile strength. Leak-Free Seal: EPDM rubber gaskets ensure secure, leak-tight joints under pressure. OEM/ODM Service: We accept OEM and ODM orders with customized listing services. Multi-Listing Options: Available with FM/UL multi-listing services for global compliance. Professional Support: Engineers available overseas for installation training and machinery service. Strict Quality Control: Comprehensive lab testing including leak, chemical, and dimension inspections.