Althon manufactures precast concrete headwalls with factory-fitted flap valves ensuring they fit properly and reducing installation time on site. Factory-fitting flap valves to headwalls means the headwalls do not have to be drilled once on site.

Althon can fit multiple flap valves to a single headwall and offers flap valves fitted to concrete headwalls in HDPE and cast iron.

To specify a headwall with flap valves complete Althon's Headwall Design Request Form and they will email CAD and PDF drawings.


Althon manufactures precast concrete headwalls with factory-fitted flap valves ensuring they fit properly and reducing installation time on site. Factory-fitting flap valves to headwalls means the headwalls do not have to be drilled once on site.

Althon can fit multiple flap valves to a single headwall and offers flap valves fitted to concrete headwalls in HDPE and cast iron.

To specify a headwall with flap valves complete Althon's Headwall Design Request Form and they will email CAD and PDF drawings.


 
 
 
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