The hatch polymer - sand type L for viewing wells

Designation: Software hatch TU5772 - 001 - 65731944 - 2013 type L
Material: composition of one structure including polyethylene, polyamide, polystyrene (binding) and sand.
Appointment: It is intended for installation on viewing wells of networks of a water supply system, the sewerage, heat and gas supply in zones of green plantings and pedestrian zones
Main technical characteristics:
Rated load 3 tons (30 kN)
Diameter of a cover - 630 mm. Cover height - 40 mm. Diameter of an internal manhole of the hatch - 600 mm. External diameter of the hatch - 770 mm. Hatch height - 90 mm. The mass of a product - 31 kg
Warranty period of operation - 1 year from the date of input of hatches in operation, but no more than 2 years from the date of shipment by manufacturer.
Hatches conform to technical requirements of GOST 3634 - 99. Service life not less than 5 years.