CN
CN
MENU

Product Center

Green Innovation · Scientific and Technological Development · Industrial Responsibility · Joint Construction of Civilized Ecology

Stainless steel water collection weir

Stainless steel water collection troughs are widely used in the outlet sections of sedimentation tanks and backwash water systems of filtration tanks in water supply and drainage projects, serving as key equipment for evenly collecting clear overflow water. In horizontal flow sedimentation tanks, bar-type or toothed-type collection troughs are commonly employed, while circular clarifiers utilize circumferential or radial troughs. For secondary sedimentation tanks in wastewater treatment plants, circular water collection troughs are typically adopted. Additionally, these troughs are applied in scenarios such as water treatment plants, domestic and industrial wastewater treatment projects, power plant cooling tower water treatment systems, grit chambers, and preliminary sedimentation tanks, facilitating the uniform collection of supernatant to ensure stable water quality output.

National Service Hotline：400-611-6861
Product Introduction

The stainless steel water collection weir is an overflow device used in conjunction with sedimentation tanks in water supply and drainage engineering. It can be categorized into U-shaped water collection troughs and L-shaped water collection troughs based on shape; and into serrated triangular weirs and orifice weirs based on discharge form. The serrated triangular weir features a simple structure, convenient installation, adjustable weir plate height, and a wide range of applications. The orifice water collection trough is suitable for pools with relatively stable water levels. The U-shaped weir is primarily used in water supply projects to collect surface water overflowing from the outlet end of horizontal flow sedimentation tanks, which then flows into the outlet trough for further processing. The L-shaped water collection trough is mainly used in drainage projects to collect water that overflows around primary and secondary sedimentation tanks after passing through baffles. The trough body is fabricated from high-quality stainless steel plates using large CNC equipment for shearing, cold forming, and welding. The stainless steel plate thickness typically ranges from 3 to 6mm, offering characteristics such as high strength, precision, and corrosion resistance.

Technical Advantage
High strength and corrosion resistance
Stainless steel material has good corrosion resistance, and can maintain a smooth surface even in harsh environments such as humidity, acidity, and alkalinity, eliminating the cost of rust removal and corrosion prevention and the tedious labor of regular cleaning.
Adjustable horizontal accuracy
The collection tank adopts advanced manufacturing technology, and the high-precision level during installation can ensure the quality and quantity of the effluent water; Even when the balance of the pool body is affected by natural settlement, high precision levels can still be maintained through simple adjustments, solving the drawbacks of traditional water collection tanks.
Uniform inflow and controllable quality
By using laser cutting and CNC machine tools for one-time processing, the weir teeth (hole openings) are uniform, and the allowable deviation of parallelism of the bottom edge of the inlet hole of a single water collection tank is ± 1mm, and the allowable deviation of the center spacing size of the hole openings is ± 2mm. The process accuracy is high.
Reliable welding quality
The welding part is protected by argon arc welding, and after welding, it is acid washed and passivated. The weld rate should be greater than 85%, and the surface should be smooth and flat, without defects such as delamination or cracks.
Strict control of deformation amount
The deformation of the stainless steel water collection tank under no-load self weight is ≤ 0.02%, and under uniform load, the deformation is ≤ 0.04%, ensuring the long-term stable operation of the equipment.
Equipment Selection

Compliance with standard specifications: Equipment design, manufacturing, and installation should comply with GB 50013-2018 "Design Standard for Outdoor Water Supply", GB 50014-2021 "Design Standard for Outdoor Drainage", and relevant stainless steel processing and manufacturing standards.


Friendship Link
Huapu Environmental Protection Huapu Water Treatment Equipment