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Clay Drainage and Chimney Pot Manufacturers

NAC Flexible Adaptor Couplings

NAC Flexible Adaptor Couplings are used to connect pipes of differing outside diameters, without the need to use bushes.

These are used to connect pipes of different materials, construction and size and can be used with Salt glazed Ware, Vitrified Clay, Densleeve, Supersleve, Cement, Pitch Fibre, Ultra-Rib, Ductile Iron, Cast Iron (Soil, Drain, SMU/Ensign), Stainless steel, Twin- Wall Plastic, Ulta-Rib and PVC-U pipe.

The most common application is for connecting PVC-u pipes to a variety of other pipe materials including vitrified clay. These couplings are also suitable for connecting other types of pipes including cast iron and metal pipes (up to a maximum outside diameter of 420mm)

Typical Uses for Common NAC Flexible Adaptor Couplings

NAC1212Larger End – 100mm Salt Glazed Ware (4″), Vitrified Clay, Supersleve, Pitch Fibre, Cement, Densleeve – Smaller End – 110mm PVC-U, 100mm Cast Iron (Soil, SMU/Ensign), Stainless Steel, Ductile Iron and Supersleve Pipe.

NAC1704Larger End – 150mm Supersleve, Salt Glazed Ware (6″), Vitrified Clay, Cement, Pitch Fibre, Densleeve, Ultra-Rib, Ductile Iron and Twin-Wall Plastic Pipe. – Smaller End – 110mm PVC-U, 100mm Cast Iron (Soil, SMU/Ensign), Stainless Steel, Ductile Iron and Supersleve Pipe.

NAC1804Larger End – 150mm Supersleve, Salt Glazed Ware (6″), Vitrified Clay, Cement, Pitch Fibre, Densleeve, Ultra-Rib and 200mm PVC-U Pipe. – Smaller End – 160mm PVC-U, 150mm Cast Iron (Soil, Drain, SMU/Ensign), Stainless Steel, Ductile Iron, Ultra-Rib and Supersleve Pipe.

For typical uses of other product codes please refer to WT Knowles

Product Code Min OD (mm) Max OD (mm)
NAC1102 100-115 110-125
NAC1212 110-121 121-137
NAC1213 100-115 121-136
NAC1302 100-125 130-145
NAC1704 110-122 170-192
NAC1705 121-136 170-192
NAC1706 144-160 170-192
NAC1804 160-180 180-200
NAC2404 144-160 240-265
NAC2601 180-205 260-285
NAC2602 240-265 260-285