•  
• Actuators
• All Thread Rod
• AWWA Brass
• Backflow Preventors
• Compression Couplings
• Fittings
• Flange Bolt & Nut Sets
• Hydrants and Valves
• Manholes & Grates
• Meter Boxes
• Penetration Seals
• Pipe
• Pipe Nipples
• Polyethylene Tubing
• Repair Clamps
• Restrainers
• Spool Pieces
• Tapping Machines
• Tapping Sleeves
• Test Plugs
• Valves
• Water Meters
•  

Sigma Corp.

SIGMA produces a wide range of accessory items for ductile iron fittings as well as threaded flanges and related items for fabrication of ductile iron pipe. SIGMA also produces the OMNI-SLEEVET, a specialized technical product to provide a wall sleeve connection for pipes that must pass through concrete walls.

• 125# Cast Iron High Hub Flange (3"-24")

• 125# Ductile Iron High Hub Flange (3"-54")



• 125# DI High Hub Tapped Flange (3"-48")

• 250# Extra Heavy DI High Hub Flange (3"-24")



• DI MJ Threaded Bell Adapter (3"-48")

• Ductile Iron Anchor Flange (3"-48")



• Filler Flanges 1.25"-4.25" Thickness (3"-12")