Low pressure automatic filter

Product catalog summary

Overview: The Hectron AS Series automatic filters are designed for low-pressure networks, operating efficiently with a minimum upstream pressure of 0.6 Bar. They are ideal for applications such as protecting plate heat exchangers and other low-pressure systems.

Key Features:

Equipped with an electronic control box, indicator lights, and a washing cycles counter.
Utilizes a 230V motor for the rotation of the washing system.
Includes a differential pressure switch to initiate the washing cycle.
Features a solenoid valve with autonomous assistance and anti-clogging protection for particle discharge.
Washing is performed without an external water supply, using a built-in pump to re-inject filtered water under pressure.

Filtration Process:

Filtration is achieved through a cylindrical screen. A pressure switch detects clogging and starts the washing cycle.
Washing involves a water spraying arm that uses pressurized clean water from the filter outlet.
Discharge occurs at the end of the washing cycle, where a solenoid valve opens to drain suspended solids.

Models and Specifications:

AS200, AS300, and AS400 models available with varying inlet/outlet sizes and filtration degrees ranging from 6 µm to 400 µm.
Maximum flow rates vary by model and filtration degree, with AS400 handling up to 340 m3/h.
Operating parameters include a maximum working pressure of 7 bar and a minimum inlet pressure of 0.6 bar.
Electrical supply requirements and power ratings differ across models.

Materials and Construction:

Filter housing and components are made from stainless steel (304 or 316L), brass, and other durable materials.
Filter media options include PETP or nylon fabric.

Applications:

Ideal for heat exchangers in buildings and water/water geothermal heat pumps, particularly where water contains suspended solids.
Suitable for well and borehole water filtration applications.

Catalog excerpts

AS SERIES AUTOMATIC FILTERS AUTOMATIC FROM Hectron AS filters have the advantage of being able to operate with only 0.6 Bar upstream pressure, what makes them specially suitable to every low pressure application, like plate heat exchanger protection. 230V motor for rotation of washing system. Electronic control box. Supplied fully equipped, with indicator lights and washing cycles counter. For particles discharge, solenoid valve with autonomous assistance and anti-clogging protection. Differential pressure switch, to trigger the washing cycle. Washing without external water supply: a pump draws water and reinjects it under pressure.

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Filtration. Filtration is achieved through a cylindrical screen. As soon as the filter screen is clogged, a pressure switch detects the pressure difference between inlet and outlet and starts the washing cycle. Washing. Washing is performed by means of a water spraying arm. Clean water from filter outlet is pressurized with a centrifugal pump and sent to the water spraying arm. A complete rotation of the water spraying arm is achieved, so that the whole surface is washed in one cycle. Filter screen Solenoid valve Suspended solids discharge Discharge. A the end of the washing cycle, a solenoid...

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Inlet / outlet Inlet / outlet

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Filter housing Discharge solenoid valve Discharge motorized valve* : butterfly / collar Cast iron / EPDM Differential pressure switch Filter screen support Screws and bolts in contact with water Filter media: fabric * In AS200 and AS300 as an option. In AS400 as standard. *with motorized valve option OPTION Motorized valve ■ Discharge operated by motorized valve, instead of solenoid valve ■ Can filter water with big size suspended solids, up to 20mm.

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Drain Drain Washing system pump :

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Heat exchangers in buildings In water / water geothermal heat pumps on wellwater, exchangers are sensitive to fouling, as soon as the water used contains suspended solids. These suspended solids gradually plug the exchangers and reduces its efficiency; disassembly and cleaning are then necessary. These filters are also suitable for other well and borehole water filtration applications, when water is directed into an open tank or to a low-pressure system. 99 - 101, route de Canta Galet - 06200 Nice - France tél. : +33 (0)4 93 97 02 42 | [email protected] | www.hectron.com SARL au capital de 24000...

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