TECHNICAL REPORT - Dimensional based particulars -
Title of Technical Report:
"Municipal castings. Manhole tops. Covers, – lids and frames, – for use in vehicular and pedestrian areas."
"Particulars of product; Dimensional specification, – RD 670 mm \ 26.50 in."
"Assembly of lids and frames – heavy duty loading class – 210/250…350/400 kN / 40,000-100,000 LBS."
"Municipal castings. Manhole tops. Covers, – lids and frames, – for use in vehicular and pedestrian areas."
"Particulars of product; Dimensional specification, – RD 670 mm \ 26.50 in."
"Assembly of lids and frames – heavy duty loading class – 210/250…350/400 kN / 40,000-100,000 LBS."
Relevant documents to be
considered: Basic standards, as are AASHTO(M306), GOST3634, EN124, and similar.
The dimensional particulars refers to heavy duty manhole covers of 210/250…350/400 kN or 40,000-100,000 LBS loading class – which are commonly casted by medium grade ductile iron in compliance with loading class and pieces structure (plates/walls/reinforcements).
Note!
Hinges or locking devices are not subject of the Technical Report.
The dimensional particulars refers to heavy duty manhole covers of 210/250…350/400 kN or 40,000-100,000 LBS loading class – which are commonly casted by medium grade ductile iron in compliance with loading class and pieces structure (plates/walls/reinforcements).
Note!
Hinges or locking devices are not subject of the Technical Report.
Measurements in metric or
in English units must be considered apart.
Mechanical drawings in which the Technical
Report consists are considered as drafts, and there are provided as-is.
Dimensions which are not mentioned, even in the case there are or not
structural thickness of pieces, are not the subject of the Technical Report, mainly
because of each manufacturer is setting them as he considers properly.
Lid description
> 4 vent holes:
> 6 vent holes:
Frame description:
