5 inch Cast Iron Soil Service Weight 1/8 Bend Hub x Soil

5" Cast Iron Soil Pipe Service Weight 1/8 Bend – 45° Hub Fitting for DWV Systems

The 5" Service Weight 1/8 Bend is a cast iron hub fitting designed to create a 45-degree change in direction within drainage, waste, and vent (DWV) systems. Manufactured in compliance with ASTM A74 standards, this fitting is suitable for gravity-fed installations in commercial, industrial, and residential structures where fire resistance, structural integrity, and long service life are required.

Constructed from high-strength gray cast iron, this bend is coated with a protective asphalt layer for corrosion resistance and durability. The hub connection is compatible with standard service weight pipe and is intended for use with properly joined lead and oakum or mechanical couplings approved for cast iron soil systems.

Key Specifications

• Angle: 1/8 bend (45 degrees)
• Size: 5" nominal diameter
• Connection: Single hub (female) end
• Material: ASTM A74-compliant gray cast iron
• Finish: Asphaltic coating for corrosion protection

Performance Features

• Fire and structural rated: Non-combustible material with high load-bearing capacity
• Acoustic dampening: Naturally reduces noise from water and waste flow
• Code compliant: Approved for use in DWV systems under major U.S. plumbing codes
• Dimensional precision: Tight manufacturing tolerances ensure consistent fitment with mating components

Installation Considerations

Best installed by licensed professionals familiar with cast iron systems. Joining methods typically include traditional lead/oakum caulking or gasketed/mechanical couplings where permitted. Proper bedding and alignment are crucial to prevent stress fractures and ensure long-term performance. Use in above- or below-grade installations as permitted by code.

Applications

This fitting is frequently used to adjust line direction in horizontal runs or transition between horizontal and vertical stacks in multi-story buildings. Common settings include hospitals, schools, multifamily housing, and municipal buildings where longevity and acoustic control are prioritized.

Technical Note

Service weight cast iron fittings are not interchangeable with no-hub components and must be installed using approved connection systems. Always confirm compatibility with existing piping and local plumbing regulations.

Rely on the 5" Cast Iron Soil Service Weight 1/8 Bend for critical directional changes in your DWV system. Its rugged construction and dimensional accuracy ensure confidence in every installation.