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.