Key Features
- Robust FRP Construction: Laminated with heavy woven roving and resin. Some designs embed steel or FRP angles for extra support. Critical areas (flanges, joints) are thickened (up to 150% thicker) per AWWA standards.
- Custom Profiles: Available in flat-bottom, V-shaped or circular bottom; any length or width. Can include perforated sections or grit traps.
- UV- and Chemical-Resistant Coating: Gelcoat topside protects against sun and harsh detergents.
Benefits
- Long Life: FRP troughs are maintenance-free with stable dimensions; no corrosion means even older installations stay level.
- Hydraulically Efficient: Smooth interiors provide uniform flow. Corners can be radius molded to prevent buildup.
- Lightweight: Easier handling and lower supporting structure loads compared to concrete or stainless steel.
Applications
Clarifier effluent collection, sand filter bottoms, washwater sumps, and general-purpose chemically-resistant gutters in any ETP. Launders often include skimming borders or flow control weirs.
Technical Specifications
Built to meet or exceed standards such as ANSI/AWWA F101. Standard thicknesses range 6–10 mm; custom up to 20 mm in high-stress areas. Typical spans up to 3 m unsupported; can be supported by FRP brackets.
Unique Selling Points
As CCG notes, our FRP launder troughs exhibit “exceptional strength and stiffness” while remaining low-maintenance. For example, their laminated trough design is “50% stronger than conventional 1/4″ units”. We offer turnkey clarifier launder systems including scum troughs and covers for a complete package.