Grating for WWTP
Grating for WWTP
(OP)
What is the best type of grating to use at a wastewater treatment plant? I have always specified aluminum. The Owner is wanting stainless steel and has even mentioned some type of plastic coated steel.
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RE: Grating for WWTP
RE: Grating for WWTP
Alternatively, if you are worried about corrosion what about a GRP grating such as those made by Fibergrate. We use a lot of it offshore.
http://www.fibergrate.co.uk/
RE: Grating for WWTP
RE: Grating for WWTP
Though we worked under perpetually wet conditions, with lots of slippery stuff around, no one ever slipped. And, this stuff never broke. I wish I knew what it was called, so I could recommend it by name.
Dave Wichern
http://www.dedalusenviro.com
Science is a business of empiricism.
RE: Grating for WWTP
http://www.ferret.com.au/articles/36/0c03f936.asp
http://gratingfrpaustralia.com.au/
Most WWTW in Oz use FRP gratings especially if they are near the ocean (most are) & subject to WW gas degradation.
Bit expensive tho.
It depends on the proximity to WW gas production. If there are reasons for access away from the problem areas, galvanised steel is generally used (replacement every ten years is MUCH cheaper than using aluminium or FRP).
Do a google on FRP gratings in your area.
RE: Grating for WWTP
Press locked or swaged aluminum grating has been a problem. It rends to feel insecure even if design properly. The deflection is more than is comfortable and the grating tends to shift slightly from side to side because of a lack os stiffness. Truss-locked or aluminum plank style is preferred.