Many years after inventing Vee-Wire®, we at Johnson Screens leveraged this technology to introduce a new innovation in 1968: our passive intake screen. 50+ years and over 4,000 installations later, we continue to lead the way in static intake screening equipment.

Johnson Screens passive intake screens provide uninterrupted water withdrawal from rivers, lakes, and oceans. Initially, our High-Capacity intake model set the industry standard when it came to efficiency. The combination of our non-plugging Vee-Wire® design and our patented internal flow modifiers provided a high open area while maintaining the lowest entrance velocity and pressure drop on the market. Additionally, our passive intake screens have no submerged moving parts that could break down or wear out and incorporate the use of the Hydroburst air backwash cleaning system, guaranteeing minimal maintenance.

When the industry demanded a shallow water screen, we developed our Half-Screen model to function identically to the High Capacity screen but with half of the required water depth. Most recently in 2018, we improved upon our existing models to design the Max-Flow™ intake system. With 40% greater flow capacity than previous models and a newly redesigned internal modifier, the Max-Flow™ is the culmination of over a half century of passive intake expertise.

Available in a variety of materials including stainless steel, super duplex, and NSF-certified Z-Alloy, every system is fully compliant with Section 316(b) of the Clean Water Act, and is a proven fish-safe intake solution that reduces impingement while protecting aquatic life. Fit for use in power plants, desalination processing, cooling stations, and so much more, Johnson Screens passive intake systems are the clear choice across industries.

See an Eco-Friendly Solution to the Zebra Mussels Problem

Johnson Screens introduced an innovative approach to combat the Zebra Mussel infestation, which is detrimental for power plant water intakes.

We created an eco-friendly solution by introducing water intakes constructed with patented Z-Alloy wire which is far superior than traditional copper nickel wire.

Since the first installation in the J.H. Campbell Power Plant in 1993, we’ve seen the effectiveness of the Z-Alloy design provide years of Zebra Mussel protection.

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Max-Flow™ Passive Intake

Max-Flow™ Passive Intake

Designed with efficiency in mind, the patented design of the Max-Flow evenly distributes water flow and reduces the internal velocity to 6 in/s or less, which increases the flow capacity over previous passive intake designs by up to 40%. Available in all materials, including stainless steel, super duplex, and copper nickel Z-Alloy.

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Passive Half Intake Screens

Passive Half Intake Screens

Featuring the same functionality and control of flow distribution as the standard Johnson Screens passive intake screen systems, our patented passive half intake design eliminates half of the depth needed to achieve the same flow rate as traditional passive intake solutions.

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Z-Alloy Screens

Z-Alloy Screens

In the early 1990's, Johnson Screens introduced Z-Alloy for intake screens that inhibit the attachment of zebra mussels to passive intake screens, and since then has expanded installations to seawater applications. Constructed with solid copper nickel wire, Johnson Screens intakes do not degrade and will provide years of Zebra Mussel protection if kept clean.

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Clean Water Act Section 316(b)

Clean Water Act Section 316(b)

In 2014, the final rule under section 316(b) of the Clean Water Act was issued in the interest of reducing fish impingement and entrainment. To that end, Johnson Screens is proud to offer a line of passive intake screening solutions that is fully compliant with this legislation.

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Flat Panel Fish Diversion Screens

Flat Panel Fish Diversion Screens

Vee-Wire screens have been identified as the best available technology by the EPA and the NMFS. The non-plugging high open area design meets the most demanding flow requirements while the smooth flat surface provides a safe barrier for fish and fish egg protection.

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Partner with a Global Service Provider

Our support doesn't end with your purchase. With locations in six continents, we apply our expertise from design to installation and start-up. Our field service specialists have been chosen in more than 100 countries and have accumulated over 25,000 hours of on-site work experience.

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