These couplings are made of lightweight ductile iron and have a bolted flange and a sleeve-type design. They join plain-end pipe with different outside diameters that fall within the range that the coupling will accommodate and reduce the need to keep a large inventory of coupling sizes.

These couplings are made of carbon steel and have a bolted flange and a sleeve-type design. They join plain-end pipe of the same outside diameter and absorb vibration.

These slide-on restraint couplings are made of corrosion-resistant stainless steel and join plain-end pipe with teeth that anchor the coupling and grow stronger in grip as internal pressure increases. The engagement of the teeth in the pipe's surface provides axial restraint, preventing the pipe from pulling out of the coupling. These teeth also provide electrical conductivity across the pipe joint. These couplings are suitable for pressure and suction applications.

These wrap-around couplings are made of corrosion-resistant stainless steel and fix leaks, cracks, and faulty weld joints by wrapping around the pipe for a tight fit. They have a split gasket design that opens to install on pipe without disassembling the system. These couplings provide temporary repairs in pipes to avoid system downtime.

These clamp-on couplings are made of carbon steel and join plain-end pipe with a flexible sleeve that accommodates joint misalignment and absorbs vibration. They quickly connect and disconnect for ease of system repair and disassembly.