Ground access hatch in checker plate for efficient fire gas evacuation

Solid Överfalsad is a robust and versatile ground access hatch made of checker plate with lid and frame. It is built for outdoor environments and ensures efficient fire gas evacuation. The hatch functions both as an access hatch and a fire gas evacuation hatch, making it flexible and useful in commercial properties, industrial settings, and public environments.

Technical Specifications

• Model: Solid Överfalsad
• Material: Checker plate in aluminum, hot-dip galvanized steel, or stainless steel (AISI 304/316)
• Load Class: Unclassified
• Dimensions: Available in various sizes for both lid and frame
  • Standard Frame Dimensions: Height 70 mm, width 90 mm
• Opening Method: The ground access hatch opens manually and is equipped with hinges and support brackets
• Lock: The ground access hatch is prepared for a padlock and typically opens from the outside
  • Alternative Lock Placement: Inside of the hatch
• Smoke Ventilation: Approved for fire smoke evacuation

Options & Customizations

• Gas spring for easier opening
• Safety grilles manufactured in accordance with SK2 or SK3 standards
• Insulated lid (glass wool board) for temperature-sensitive installations or minimized energy loss
• Multiple lids can be combined in the same opening
• Can be prepared for decking cladding

Applications

• Fire gas evacuation and/or access in commercial properties, industrial settings, shafts, and public environments

Benefits

• Safe solution – meets smoke ventilation requirements for secure installations.
• Robust and durable – construction designed to withstand weather, wear, and frequent use.
• Long lifespan with minimal maintenance – durable design that requires little upkeep over time.
• Flexible use – suitable for both emergency exits and service access

Installation

Always read the installation instructions carefully before starting, as these may vary depending on the model and options.

• Installation should be performed by qualified personnel and adapted to the project’s conditions
• Bolt directly into a concrete foundation or equivalent
• Plan the placement with consideration for fire compartment boundaries and access for maintenance and emergency situations

Operation & Maintenance

Always follow the specific operation and maintenance instructions provided with your order, as they may vary between models, materials, and options.

• Before operating the unit, ensure there are no obstacles in the lid’s movement path
• The ground access hatch should be opened and cleaned at least once a year, using clean water and a mild cleaning agent with a soft cloth or sponge. Avoid abrasive cleaning products
• Ensure that the gap between the lid and frame is free from gravel and dust
• Keep the hatch hinges clean and lubricate them as needed
• Gas springs should be exercised at least once every two months