Municipal Water Storage
Quick Opening Manway

Chase CM-1 Quick-Opening Manways are specified by many of the most successful prestressed concrete tank erectors in North America. With years of proven success in large water storage tanks from 1.0 MG and up, our access products set the standard in the concrete and steel wire-wound prestressed tank construction industry.

Our standard Lock-Out technology and optional Locking Security Cover provide a maintenance free and fail-safe manway that will last the life of the tank.

Pulp & Paper Making
Quick Opening Manway

For over 25 years Chase products have been providing access into processing and storage tanks in all of the major pulp and paper mills in North America. Our proven reliability has made the Chase Quick-Opening Manway THE Industry standard for Hi-Density Chests, Couch Pits, Whitewater & Saveall Chests, Pulper & Broke Chests and all of the confined space tanks and vessels that require periodic access.

From mills in our home state of Maine and neighboring Atlantic Maritimes to mills in Oregon, Washington and British Columbia, over 7,000 Chase manways are giving maintenance personnel safe and secure tank access for equipment repairs and cleaning.

Wastewater Treatment Applications
Quick Opening Manway- In-Swing

Chase Model CM-1 Quick-Opening In-Swing ASME Dished Head Manways are designed for use in concrete wall tanks and basins. With low profile deign and 100% stainless steel construction for maximum corrosion resistance, economical Chase Manways provide ground level entry during project construction and fast, reliable access for the life of the completed system.

Quick-Opening Manway - Out-Swing

Chase Model CM-12 Quick-Opening Out-Swing Manways can be cast into concrete walls or fitted with flanges matching standard ANSI B16.1 (Class 125) or B16.5 (Class 150) drilled hole patterns for reliable bolt-up installation