Intake Screens (Passive Wedge Wire Intake Screens)

Intake screens, also known as passive intake screens or wedge wire intake screens, are designed with non-clogging V-shaped wires and continuous, smooth slots. These screens are point-welded onto wedge wire support rods, providing a large open area and allowing for low-velocity flow across the entire surface. This design minimizes impingement and entrainment of debris while ensuring the protection of aquatic life.

The screens feature slot widths ranging from 1 mm to 10 mm (0.04" to 0.4"), with 3 mm (0.12") being the most commonly used size. Intake screens serve as the first line of defense in intake systems, keeping fish safe and preventing harmful debris from entering pumps and turbines. They are both efficient and environmentally friendly, making them ideal for a wide range of industrial applications.

Specifications:
- Material: Stainless steel and Duplex stainless steel
- Slot Size: 0.1 mm, 0.15 mm, 0.2 mm, 0.25 mm, 0.3 mm, and up to 6.0 mm
- Diameter: From 25 mm to 1500 mm
- Wedge Wire Sizes:  
  - Width: 1.5 mm, 1.8 mm, 2.3 mm, 3.0 mm, 3.3 mm, 3.7 mm  
  - Height: 2.2 mm, 2.5 mm, 2.7 mm, 3.6 mm, 4.3 mm, 4.7 mm, 5.6 mm, 6.3 mm, 7.0 mm
- Support Rod Sizes:  
  - Width: 2.3 mm, 3.0 mm, 3.3 mm, 3.7 mm  
  - Height: 2.7 mm, 3.6 mm, 4.7 mm, 5.6 mm, 6.3 mm

Common Specifications of Passive Intake Screens

Features of Intake Screens

Intake screens are passive devices with no moving parts, ensuring efficient and effective operation with minimal maintenance. The continuous slots and large open area provide excellent water flow while minimizing clogging. These screens can be customized in multiple designs and configurations to accommodate both deep and shallow water installations. Constructed from stainless steel, they are highly resistant to corrosion and offer a long service life. Intake screens not only protect aquatic life but also safeguard pumps and equipment from harmful debris, ensuring smooth operation.

Applications of Intake Screens

Intake screens are ideal for continuous water extraction from rivers, lakes, dams, and oceans. They are widely used across various industries, including:
- Municipal Water Supply
- Water Treatment Plant
- LNG Plants
- Desalination
- Paper & Pulp
- Sugar Mills

These screens provide reliable protection and filtration, making them essential for industries relying on consistent water intake.