WATER & WASTE WATER PROCESS EQUIPMENT

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2 WATER & WASTE WATER PROCESS EQUIPMENT AWMA Water Control Solutions design, manufacture and install innovative water control infrastructure for all industry sectors, globally. All products are purposeengineered, designed to meet client specifications. AWMA have recently formed a strategic partnership with the global organisation Ham Baker Group. This partnership will combine Ham Bakers 120 years of proven industry experience in water and waste water processing equipment with AWMA s well respected local manufacture capability and customer focused solutions. AWMA will utilise existing in-house capabilities to manufacture this extended range of products, continuing to deliver innovative and efficient solutions for water management and water treatment. AWMA specialise in the design, manufacture, installation and service of customised water control and now inlet works process equipment. All equipment is supplied under our ISO 9001 accredited quality management system ensuring compliance with all applicable international standards, local regulations and project specific requirements. Our unique approach to design is inclusive, ensuring that sustainable solutions are developed in partnership with our clients, resulting in superior operational performance and reduced whole of life costs. When discussing your next water or wastewater project, consider involving AWMA in the early design phase to benefit from experience, support and innovative solutions. The AWMA website features product information, project articles, design options, photos and documentation for your information, alternatively contact the head office on for assistance.

3 TRAVELLING FINE SCREEN DESCRIPTION Our Travelling Fine Screen incorporates fabricated panels manufactured from pre-formed stainless steel perforated plate with apertures sized to suit specific applications. The panel design allows easy replacement in case of accidental damage whilst being securely fastened to the special strength 203mm pitch roller link chain. Panel cleaning is via a two-stage cleaning process. First, a solid filled modular rotary brushing system with optimised position and bristle configuration removes the majority of screenings. This brushing system allows speedy replacement and adjustment. Second, wash water jets provide the final polish and ensure the rear cavity of the equipment remains free from blockage. Each panel has a replaceable side seal manufactured from bearing grade ultra-high molecular weight polyethylene fitted between the chain and panel to effect a close tolerance seal, with the seal fitted to the screen structure. The main structural side plates are manufactured for strength and rigidity. These plates incorporate side outlet passages at flow level to allow passage of screened flow minimising headloss. The high strength chains run in ultra high molecular weight polyethylene guides and are driven by sprockets attached to the head shaft running in ball bearing plummer blocks. The drive is from a shaft mounted gearbox with a choice of motor types to suit specific applications. The drive continually moves panels from the screening zone via the channel in front of the equipment to the cleaning mechanism where the debris is removed from the perforated panels. The fine screen is fully guarded by stainless steel covers fastened to the main side structure. The fine screen can be inched forward in case of mechanical stoppage and hinged to pivot out of flow for maintenance purposes. Dual speed units can be supplied. The screenings capture ratio is 79% as assessed at the national Screen Evaluation facility, Chester-le- Street, England.

4 TRAVELLING FINE SCREEN KEY FEATURES Unique cutaway side plate designhelps reduce head loss. Perforated hole size: 3mm to 6mm diameter. Screen angles: 70 standard (45 and 60 options). Screenings Capture Ratio: 79%. Incorporates high open area screening media to improve hydraulic and capture performance. Rotary brush cleaning mechanism combats hair pinning even when used with minimal wash water. Fully retractable spray barallows speedy nozzle unclogging. Engineering bearing grade plastic side sealing system, helps prevent solids bypass and offers exceptional abrasion resistance. Bespoke design for retrofitting or new chamber installations up to 3m wide and 9m deep. Quick and easy to install and maintain shallow excavation. Material of construction: Grade 316 stainless steel. Proven hydraulic and capture performance established during independent trials at the National Screen Evaluation Facility Chester-le-Street England, conducted by UKWIR

5 CENTRE FLOW BANDSCREEN DESCRIPTION Screening panels are carried on a vertical travelling path, between chains suspended from substantial sprockets on a head shaft. The chains, screen panels and guides are contained in a carbon steel or stainless steel screen support structure. A feature of this type of screen is its high capacity per width ratio and ability to deal with large variations in water levels and depths. Dependant upon the size of screen, the frame will be fabricated from rolled steel sections suitably braced to withstand loads or from pressed and fabricated plate in stainless steel or carbon steel. The head section is fabricated to hold the head shaft in guides and incorporates spray pipes and discharge trough. Covers are manufactured in stainless steel and have inspection windows fitted as standard. The chains are at pitches of 200, 300 or 450mm depending on the size of the screen. Links are carbon steel plated or stainless steel and fitted with moulded nylon rollers sized to suit the screen. Drive to the head shaft, which is supported in heavy duty roller bearings, is normally by a shaft mounted gear reducer often with two speed motor. Motors can be fitted with torque limiting coupling or preferably current overload sensing, to prevent damage due to obstruction or overload. The panel frames are of mild steel or stainless steel construction secured to the chain by stainless steel bolts. The frame carries plastic perforated panels or stainless steel meshes depending upon application and can be removed from outside the screen. The trailing edge of the panel is extended forward to form platforms for lifting larger debris. Each panel is fitted with shaped seal plates. This corresponds with fixed side seals to give minimum clearance at sealing between clean and unscreened water. The screens are fitted with spray header pipe(s) each with a row of jets to wash debris from the panels into the debris trough incorporated into the head covers. Debris troughs can be fitted with extra sparge water supply, dependent upon debris loading.

6 CENTRE FLOW BANDSCREEN ExcelS Band Screen 750 L/sec Double Flow Band Screen 750 L/sec KEY FEATURES High capacity per width ratio. Maximum flow rate up to 7000L/sec. Carry-over prevented. Thick plate perforated plastic or stainless steel mesh panels. Screen widths of up to 4.0m and depths of 20m can be provided. Screening down to 3mm where required. Screenings Capture Ratio of up to 87%. Heavy duty chains of proven design for low maintenance. Highly efficient side sealing systemprevents screenings transfer downstream. Removable panels for ease ofmaintenance. Material of construction: Grade 316 stainless steel. Proven hydraulic and capture performance established during independent trials at the National Screen Evaluation Facility Chester-le-Street England, conducted by UKWIR

7 Travelling Fine Screen Bandscreen Mechanical Trash Screen

8 SCREENS PENSTOCKS BULKHEADS STOPBOARDS FLOODGATES FLOOD BARRIERS MECHANICAL TRASH SCREENS FISH & DEBRIS EXCLUSION SCREENS Engineering Design Australian Manufacture Installation & Commissioning Local Technical & Sales Support ISO 9001:2015 Quality Accreditation SCREENS I SELF-CONTAINED INLET PLANT SCREENINGS HANDLING I GRIT REMOVAL