Airpel Series S4 Rotor Blade Self Cleaning Filters are suitable for all liquids particularly those of high viscosity such as chocolate and paints or generally those of high value, as liquid losses from the system are minimal.
Airpel Series S4 Rotor Blade Self Cleaning Filters – Principle of Operation
The Airpel Series S4 Rotor Blade self-cleaning filters blend modern technology with simplicity to provide a versatile method of filtering your process fluids. The filter can be set up for fully or semi-automated or manual operation during which the liquid enters the body and flows through the filter element from outside to in. Debris is collected on the outside of the wedge wire or perforated element. Cleaning takes place without interruption to flow by the rotation of scraper blades against a fixed filter element. The debris accumulated during rotation is guided downwards by the rotation of a specially designed agitator assembly and is then deposited into the sump of the filter from where it can be periodically discharged either manually or automatically, via an angled drain port. There is a dump agitator located in the sump to combat pooling and solidification of product and a paddle agitator located on the filter clean side to keep the product in motion. Ideal for processes that require continuous flow and high viscosity, the self-cleaning filter (SCF) range is also suitable for use on unmanned sites and with hazardous process fluids.
Construction
The Rotor Blade self cleaning filter is a fully fabricated stainless steel body with stainless steel internal filter yoke assembly.
Airpel Series S4 Rotor Blade Self Cleaning Filters Features and Benefits
| Feature | Advantage | Benefit |
|---|---|---|
| Three methods of operation | Manual, motorized and fully automated options gives the client a choice of control | Client can choose level of automation required for their needs and budget |
| Contained scraper blade design | Effective on hazardous and high dirt load processes | Less down time and no contact with process fluid giving operator added safety |
| Dump valve | Control of collected waste | Zero lost product & 100% control of waste disposal |
| Wedge wire or perforation design filter elements available | Controls size and shape of filtered debris | Filtered product quality can be controlled and maintained |
| Digital control panels (IP65) | Can control several filters in remote and unmanned locations | Easy programming, no frequent check required as any errors will be reported on the panel and signals sent as required |
| Standard Airpel Design | Wide range of sizes and materials available from standard stock | Meets customers delivery and budget requirements |
| Rotor blade design | Designed for high viscous products incorporating 3 internal agitators | Product and debris is continually in motion to assist in product quality and filtering |
The Rotor Blade self cleaning filter allows cleaning of the filter screen without operator contact and without disruption to the liquid flow, just like our other SCFs, but with the addition of using a helical blade producing a unique ‘screw down’ mechanism that drives debris toward the sump of the filter. It is suitable for all liquids particularly those of high viscosity such as chocolate and paints or generally those of high value, as liquid losses from the system are minimal.
SPX can offer various filter models and levels of automation as outlined below, custom requests can also be provided so the filter can be easily integrated in to either a new or existing process line / plant.
Manual
- Ratchet handle is fitted to the filter for the operator to carry out filter element cleaning process.
- Filter ‘dump’ connection is suitably plugged ready for the client to their chosen valve.
- Control panel and Differential pressure indicators not supplied as standard.
Motorised option
- Manual cleaning handle is replaced by a motor (electrical or Pneumatic) which can then be operated directly or via a control panel.
- Filter ‘dump’ connection is suitably plugged ready for the client to their chosen valve.
- Control panel and Differential pressure indicators not supplied as standard.
Fully Automated option
- Manual cleaning handle is replaced by a motor (electrical or Pneumatic) which can then be operated directly or via a control panel
- ‘Dump’ valve is replaced by an electro-mechanical or pneumatic valve connected to control panel
- Differential pressure indicators fitted.
- All connected to a control panel to monitor and operate the filter accordingly. No manual intervention
Specifications
- 40 mm (1 1/2”) to 100 mm (4”),
- Working pressures up to 13.8 barg
- Temperatures up to 260°C
- Flange connection options (specials available),
- Materials in Stainless Steel,
- Quick release V-band cover design for easy access.
- Filtration down to 25 micron.
- Angle drain valve to assist in 100% filter draining Flange connections
Options
- Heating Jackets
- Manual, Electric & Pneumatic drive options
- Manual, Motorized & Fully automated control options
- Remote signalling
- Wedge Wire and Perforated elements
- Stainless Steel (std), Stainless Steel Hardened or Plastic blade options depending on process
- IP65 Automation as standard
- Explosion proof (ATEX) specification available on request
Maintaining Process Fluid Quality
Maintaining the product quality by the use of Airpel Series S4 Rotor Blade Self Cleaning Filters, helps to reduce downtime, increase productivity and contain/reclaim unwanted debris to comply with company and environmental legislation
Common industries where product quality is essential:
- Water treatment
- Food and beverage
- Pharmaceutical
- Paints, inks and varnishes, etc.
Automation
The Airpel Series automated self-cleaning filters allows for stand alone, low maintenance processing of liquids. The range can be automated, either electronically or pneumatically, from 32 mm (1.25″) and above. The level of automation can be selected from manual cleaning and valve operation to fully automated filters which can be supplied wired and fully tested, requiring only on site connection to the power source and dump valve connection.
Element Design
The wedge wire element is used in 90% of applications and is likely to remain the most commonly used element in the self cleaning filter. However, for certain critical filtration applications a perforated element has been introduced.
The perforated element will prevent ‘platelet’ shaped debris passing through the element ‘letter box’ fashion and will make the passage of fibrous debris practically impossible.
