The N-12® ST IB Pipe (per ASTM F2648) is a high-performance HDPE pipe with a superior built-in bell-and-spigot joint. The joints are sealed by high-quality, factory installed gaskets that meet ASTM F477 requirements. The polyethylene bell minimizes joint distortion, eliminating the chipping and cracking that happens with concrete bells.

Applications for the N-12® ST IB Pipe (per ASTM F2648) pipe include storm sewers, retention/detention systems, golf courses, turf and recreational facilities, culverts & cross drains, mining/forestry/industrial, grain aeration, waterways, ditch enclosures, slope & edge drains, foundations drains, downspouts & roof drainage, land reclamation, and terracing.

The N-12® ST IB Pipe (per ASTM F2648) pipe features diameters from 4”-60” (150-1500mm), and in-line bell & spigot joint design, exceptional joint strength, its lightweight, fast to install, and its structural strength will support H-25 live loads with 12” (300mm) minimum cover.

The benefits of N-12® ST IB Pipe (per ASTM F2648) pipe are that it comes in a variety of diameters and lengths, the joint only requires lube for fitting, you can push the ends together for easy installation, no gasket materials, grout or sealing bands are required, and the interior of the pipe is smooth for easy installation.

This document includes additional specifications about the N-12® ST IB Pipe (per ASTM F2648), including the N-12® ST IB Pipe (per ASTM F2648) requirements, joint performance, fittings, N-12® ST IB Pipe (per ASTM F2648) material properties, and installation.

For complete installation guidelines for the N-12® ST IB Pipe (per ASTM F2648), follow ASTM D2321 and ADS’ published installation guidelines. Minimum cover in trafficked areas for 4”-48” (100-1200mm) diameters shall be one foot (0.3 m), and for 60” (1500mm) diameters, the minimum cover should be 2 feet (0.6m) in single run applications. Backfill for minimum cover situations shall consist of Class 1 (compacted), Class 2 (minimum 90% SPD) or Class 3 (minimum 95%) material. Maximum fill heights depend on embedment material and compaction level; please refer to Technical Note 2.02. A table is provided for pipe dimensions with nominal diameters for reference.