Pipeline Choices
Unique Conditions Require Specific Solutions
In certain areas, water that was once known to be clean and non-corrosive is increasingly becoming more corrosive. Some producers are using less desirable sources:
- Waste water
- Process water
- Corrosive water
Other producers are adding crop protection chemicals or soil amendment products. Under these conditions, corrosion of standard galvanized steel can occer at varying rates.
All materials, except Valley PolySpan liners, are susceptible to corrosion failure. Depending upon the water quality, corrosion failure can occur in a few years, or it may take several decades.
PolySpan
PolySpan
Introduced by Valmont in 1992 to help resist the effects of acidic, alkaline, corrosive, and saline waters. Utilizes a 3/4" outlet fitting, the strongest in the industry. No stainless steel used to connect spans, which can be corroded by chlorides and sulfates in the water. Available with Valley pivots, towables, and linears. Eight span lengths to choose from.
Galvanized Steel
Galvanized Steel
The industry standard pioneered by Valmont. Still acceptable for most applications, but may not meet expectations under certain water conditions.