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Many water authorities are demanding water storage tanks that are connected to mains water has the mains protected from contamination, this is achieved with a Type AB Airgap.
Sizes from : 400 * 95mm Screened Spillover weir
Screened with grade 316 stainless steel mesh so that the weir complies with water regulations.
Cowled to prevent ingress of light into the tank.
Suitable to create Cat 5 Backflow Prevention ( Type AB Airgap ), by fitting the weirs into the walls of the tank or fitting a raised ballvalve with the weirs onto the lid of the tank.
Type AB Airgaps
1 No. 400*95mm Weir suitable for inlets upto 1"
2 No. 400*95mm Weirs suitable for inlets upto 1 1/4"
2 No. 400*110mm Weirs suitable for inlets upto 1 1/2"
2 No. 400*160mm Weirs Suitable for inlets upto 2"
2 No. 400*200mm Weirs Suitable for inlets upto 2 1/2"
2 No. 400*230mm Weirs Suitable for inlets upto 3"
Special sized Weirs can be made for larger inlets, please contact our offices for prices and sizes.
Weirs over 95mm High require The Seperate GRP Cowl.
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