Description

Automatic Electric Self-Cleaning Screen Filter

The Automatic Electric Self-Cleaning Screen Filter is a high-performance, electrically operated filtration system designed for continuous removal of suspended solids in municipal, industrial, and irrigation water applications. Its robust horizontal design, large effective filtration area, and minimal moving parts provide reliable filtration performance while simplifying maintenance and reducing operating interruptions.

Engineered for demanding water conditions, the automatic screen filter combines high-efficiency screen filtration with automatic suction cleaning to maintain consistent flow and low head loss. Filtration and self-cleaning can operate simultaneously, allowing treated water to continue flowing while accumulated solids are removed from the filtration screen.

The result is a dependable automatic backwashing screen filter designed for high-flow applications where uninterrupted filtration, low maintenance, and reliable solids removal are essential.

Automatic Self-Cleaning Screen Filtration

During normal operation, water flows through the stainless steel screen in an inside-out filtration configuration. Suspended solids are retained on the inner surface of the screen while filtered water passes through the filtration element.

As solids accumulate, differential pressure across the screen increases. The cleaning cycle is automatically initiated based on differential pressure or a preset time interval.

Once cleaning begins, the flushing valve opens and a specially designed suction scanner travels along the screen surface. The scanner removes accumulated solids through suction and directs them to the drain. The fast cleaning cycle helps restore filtration capacity while minimizing disruption to the water flow.

This automatic cleaning process eliminates the need for frequent manual screen removal and cleaning while helping maintain consistent filtration performance.

Horizontal Design for Easy Maintenance

The horizontal configuration provides convenient access to the filtration components through a single service door, making inspection and maintenance easier.

The large effective filtration surface allows the filter to handle significant suspended-solids loading while maintaining relatively low head loss. A sectional screen design also helps simplify maintenance and can reduce the cost associated with replacing individual filtration sections.

Key design advantages include:

• Horizontal configuration for simplified maintenance
• Single-door access to filtration components
• Large effective filtration surface
• Sectional stainless steel screen
• Minimal moving parts
• Automatic differential-pressure cleaning
• Time-based automatic cleaning option
• Fast suction-scanner cleaning cycle
• Continuous filtration during the cleaning process
• Low head loss under variable operating conditions
• Compact, modular construction

Technical Brochure and Specification for AUTOMESH Electric-Automatic Screen Filter

The filtration element consists of a stainless steel screen integrated into a polyamide tubular structure. The standard filtration grade is 120 mesh (130 microns), providing effective removal of suspended solids for a wide range of water-treatment applications.

Multiple screen grades are available to accommodate different water-quality conditions and filtration requirements, ranging from coarse filtration to fine suspended-solids removal:

• 12 mesh – 1,500 µm
• 20 mesh – 850 µm
• 35 mesh – 500 µm
• 50 mesh – 300 µm
• 70 mesh – 212 µm
• 80 mesh – 180 µm
• 120 mesh – 130 µm
• 200 mesh – 75 µm
• 270 mesh – 53 µm
• 635 mesh – 20 µm

The broad selection of screen openings allows the automatic electric screen filter to be configured for specific water-quality and filtration requirements.

Durable Construction and Protective Coating

The automatic screen filter is designed for long-term operation in demanding water environments. The filter body is manufactured from carbon steel and receives internal and external surface treatment followed by an electrostatic epoxy-polyester powder coating.

The filtration and cleaning components use corrosion-resistant materials to provide durability and dependable operation.

Standard Materials

• Body: Carbon steel
• Screen: AISI 316 stainless steel
• Suction scanner: AISI 316 stainless steel
• Gaskets: NBR synthetic nitrile rubber, 60° Shore
• Screen structure: Polyamide tubular construction
• Fasteners: Zinc-plated corrosion-resistant screws suitable for outdoor use

Other stainless steel screen grades are available upon request.

Low Head Loss and Continuous Filtration

Maintaining low pressure loss is critical in high-flow water filtration systems because excessive head loss can increase pumping requirements and operating costs.

The large filtration surface of this automatic screen filter is designed to maintain low head loss even under variable operating conditions and high superficial velocities. Automatic cleaning helps prevent excessive solids accumulation and maintains available filtration area.

Because the cleaning cycle is fast and filtration continues during cleaning, the system is well suited for applications where maintaining uninterrupted water flow is important.

Electric Automatic Backwashing

Unlike hydraulically operated automatic screen filters, this system uses electric controls to command the automatic cleaning cycle. Cleaning can be initiated by differential pressure or according to a programmed time interval.

The automatic cleaning sequence provides a convenient way to maintain filtration performance without requiring routine manual intervention.

Automatic cleaning benefits include:

• Differential-pressure activated cleaning
• Programmable time-based cleaning
• Automatic flushing
• Rapid suction-scanner operation
• Reduced manual maintenance
• Continuous water filtration
• Consistent filtration performance
• Efficient removal of accumulated solids

Operating Pressure

The automatic electric screen filter is designed for demanding pressure applications.

Pressure specifications:

• Maximum operating pressure: 150 psi
• Minimum operating pressure: 15 psi
• Minimum cleaning pressure: 35 psi
• Testing pressure: 210 psi
• Available pressure rating: Up to 235 psi
• Standard backwashing pressure: 35 psi

Proper operating pressure and flow conditions should be evaluated according to the selected filter configuration and application requirements.

Applications

The automatic self-cleaning screen filter is suitable for a broad range of water filtration applications where reliable suspended-solids removal is required.

Typical applications include:

• Municipal water filtration
• Industrial water treatment
• Agricultural irrigation
• Drip irrigation filtration
• Sprinkler irrigation
• Surface water filtration
• Well water filtration
• Reclaimed water filtration
• Process water filtration
• Pre-filtration for water treatment systems
• Protection of pumps, valves, emitters, and downstream equipment

Its robust construction and automatic cleaning capability make it particularly suitable for applications with variable water quality and elevated suspended-solids loading.

Automatic Screen Filter Benefits

The Automatic Electric Self-Cleaning Screen Filter provides a combination of high filtration efficiency, automatic operation, and durable construction.

Key Benefits

• Automatic electric self-cleaning operation
• Continuous filtration during cleaning
• Large effective filtration area
• Low head loss
• High solids-loading capacity
• Fast suction-scanner cleaning
• Differential-pressure or time-activated cleaning
• Minimal moving parts
• Easy maintenance through a single service door
• Sectional screen design
• Standard 120-mesh (130 µm) filtration
• Available screen openings from 12 mesh (1,500 µm) to 635 mesh (20 µm)
• AISI 316 stainless steel filtration screen
• AISI 316 stainless steel suction scanner
• Durable carbon-steel housing
• Epoxy-polyester powder-coated finish
• Compact modular design
• Suitable for municipal, industrial, and irrigation applications

High-Performance Automatic Water Filtration

For water-treatment, irrigation, and industrial applications requiring dependable suspended-solids removal, the Automatic Electric Self-Cleaning Screen Filter provides an efficient and reliable filtration solution.

Its horizontal design, large filtration surface, automatic suction cleaning mechanism, and electrically controlled backwashing system allow the filter to operate continuously while minimizing maintenance requirements and filtration interruptions.

With multiple screen filtration grades and configurations available, the system can be selected to match a wide range of water quality, flow, and suspended-solids filtration requirements.