Mussel Filter

A Hubert mussel filter protects heat exchangers and condensers

Our mussel filter offers adequate protection against Dreissena Polymorpha, the so called Zebra mussel, notorious for the enormous damage it can cause to your vital systems. In addition to mussels, the filter can also remove other crustaceans and water organisms.

Because the worldwide distribution of the zebra mussel continues to increase every year, it poses increasing problems for water intake systems.

A Hubert mussel filter is used in water intake systems for power plants, refineries and chemical companies, that use surface water as cooling water.

This filter protects your heat exchangers, condensers and pumps connected downstream against troublesome macrofouling issues.

Applications can also be found in closed-circle heating water systems where hot water is transported over long distances and which can cause all kinds of fouling problems at the start of the season or after repairs.

Coarse Screen Damran Hubert Project Essent Moerdijk

Water Intake Systems

We are specialised in water intake systems for cooling, drinking and process water

Over the years, we have built up a great reputation in supplying water intake systems, used for mechanically clean water extracted from the sea, rivers or lakes. This filtered water is applied for cooling and process water. Hubert supplies engineered, made-to-measure automated screening machinery and complete screening systems. We supply complete complete ‘screening trains’ including all additional equipment, like controls and cathodic protection.

We are active in both new construction (EPC) projects and renovation and optimization of existing water intakes.

Mussel Filter

The Hubert mussel filter guarantees a fault-free process

A major advantage of the Hubert mussel filter is that the filter has no moving parts. The filter system does not contain flushing arms or no-return valves in the filter housing for cleaning the filter basket. This ensures that the plant is permanently assured of cooling water free of mussels or other crustaceans.

Our mussel filter can be integrated (downstream) in a Hubert (sea) water intake system, which can include coarse bar screens and drum screens or travelling band screens.

The Hubert mussel filter is an engineered product, however Hubert supplies a standard range of filters with different sizes and capacities to suit your specific application. The Hubert mussel filter can be built into existing piping systems in both a horizontal and vertical position.

Product information PDF

Applications

A Hubert mussel filter is used in water intake systems for power plants, refineries and chemical companies, that use surface water as cooling water.

This filter protects your heat exchangers, condensers and pumps connected downstream against troublesome macrofouling issues.

Filter Design

The filter consists of a cylindrical housing made of carbon steel, in which a round filter basket is placed. This filter basket is made of so-called v-wire. A material with excellent filtration and release properties. Via the welded inlet, the water flows tangentially towards the filter medium, the water passes the filter radially, and leaves the basket axially.

The space between the basket and the filter housing is partitioned into 2-10 compartments, each provided with a flushing connection with shut-off valve.

Control takes place with a PLC. The control can be provided with communication ports for inclusion in middleware systems.

Filter Operation

The contaminated water (1) enters the filter tangentially and flows around the filter basket (2) in each compartment (3).

The water radially leaves the compartment through the basket and is then transported further axially (4). The crustaceans (mussels) remain in the compartments.

The degree of pollution can be determined by means of differential pressure measurement between inlet (1) and outlet (4). The flushing of the filter starts on the command of a preset pressure difference and takes place in sequence per compartment.

Each compartment has its own flushing connection with globe valve (5). Opening a flushing valve (5) increases the tangential flow rate around the filter basket. Due to the pressure reduction that thus arises in the compartment concerned, water (4) flows back from the basket into the compartment. In this way it discharges all contaminants from this particular compartment to the outside (6) via the flush valve.

The use of several compartments ensures that the pressure drop during flushing remains limited and the capacity only decreases with the amount of flushing water.

Hubert Mussel Filter Range

A Hubert mussel filter is an engineered product, customized to your application. We distinguish 4 standard designs: NW 300, NW 600, NW 800 and NW 1000, all available in both vertical and horizontal configurations. Capacity varies from 300 to 4500 m3 / h (nominal). The slot opening of the v-wire basket is standard 4 mm.