Chase Quick-Opening access products are available for poured concrete wall, precast concrete panel, block wall and tile lined concrete wall construction in either in-swing or out-swing design. All conform to OSHA Permit Required Confined Space Rules.
Chase Model CM-1 Quick-Opening, In-Swing Manways open into the vessel and seal an ASME flanged and dished cover against a liquid-tight, replaceable gasket. The handwheel release operates only when the tank is empty and provides access in seconds without unbolting or use of tools. Model CM-1 is designed for vertical wall installations and can be retro-fitted into any existing concrete wall.
Chase Model CM-12 Quick-Opening, Out-Swing Manways secure a hinged ASME flanged and dished head with a series of quick release toggles. Model CM-12 is designed for vertical or horizontal installations in new or existing concrete walls and roofs.
Chase Model CM-3 Quick-Opening Conversion Manway allows quick access through any existing bolted cover manway or large nozzle presently installed in a concrete wall or steel tank. Easily replace any existing Blind Flange access-way into a quick-opening design.