High-Performance Trench Four-Way Grooved Couplings

High-Performance Trench Four-Way Grooved Couplings Product Overview Shanxi Bote trench four-way grooved couplings are dedicated grooved pipe fittings specially designed for fire protection pipeline systems. Covering full mainstream sizes ranging from DN65 to DN300, this type of pipe couplings is cast from ductile iron with a red epoxy coating on the surface for comprehensive anti-corrosion protection. All mechanical pipe fittings fully comply with GB5135.11 national fire protection standards and hold official 3C fire certification, with a rated working pressure up to 1.6MPa. Adopting grooved connection mode, these grooved coupling fittings eliminate on-site welding procedures to cut construction time and improve site safety. The sealing structure delivers stable leak-proof performance and low fluid resistance inside pipelines. As professional steel pipe fittings, they realize four-way flow diversion and multi-branch layout, perfectly matching the requirement of connecting multiple br…