Low relative weight, coupled with a large seating flange on the frame provides ease of installation.
In addition to strength, AS3996 specifies;
- a requirement for gas and water tightness,
- keyhole dimensions,
- grate bicycle safety,
- identification markings, and
- frame dimensions
All Webforge access covers and drainage grates can comply with these requirements, if requested.
Please identify your specific requirements when talking to your Webforge sales consultant.
The industry convention is to identify the size of access covers and drainage grates by specifying the
internal clear opening dimensions of the frame. For circular covers this dimension is a diameter. For square and rectangular covers, the normal convention is Width x Length (W x L). For single part covers, the width is taken as the frame dimension parallel to the side of the cover with two keyholes.
Frame Clear opening dimensions
Webforge access cover frame clear openings are 15mm larger than the nominal sizes of industry standard sized pits.