Introducing: New Range of Aluminum Access Hatches

SIGMA is pleased to announce the availability of a new aluminum product line to support the national precast market. Effective immediately, SIGMA will be offering a series of domestically manufactured Aluminum Access Hatches for construction companies building utility vaults.

The access hatches come in two designs; as an angled frame and as a trough frame.

  • The angled frame is designed for applications where rainwater entering the vault is not a concern and is available as a single or double leaf.
  • The trough frame is suited for applications where rainwater intrusion control is needed and is also available single or double leaf.
  • Optional safety grates and nets available upon request for all hatches.

Both products meet the American Association of State Highway Transportation Officials (AASHTO H-20) standard for manhole frame and cover load-bearing requirements for pedestrians and vehicles in low traffic areas.

SIGMA can manufacture various types of aluminum frame styles and sizes, from standard sizes such as 24×24 to 60×60 inches, to custom orders.  We are also now offering Aluminum Ladders to complement the new Hatch line.

For further information, please email SIGMA’s Precast team Glenn Chaisson gc1@sigmaco.com or cell 281 808 9723 or Harry Bair hb1@sigmaco.com or cell 850 206 7675. Complete product brochure available here.