FILTERS (Dia x Height) 30 x x x x x x x x x x 170.

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1 COMMERCIAL & INDUSTRIAL AUTOMATIC CARBON MEDIA FILTER SYSTEMS FOR POTABLE, PROCESS & WASTEWATER C&I SERIES Carbon Options GC0: A high quality general purpose coconut carbon that works by adsorption of small molecular weight organics from potable water and wastewater. Ideal for dechlorination, de-ozonation and pesticide removal GC0N: A very high-activity and high-performance coconut carbon. The carbon works by adsorption and BAC*. Highly pre-washed to reduce ph. Ideal for beverage plants, aquaculture and pre-filters for renal dialysis water treatment systems GA0N: A high quality general purpose coal-based carbon that works via adsorption and BAC*. Pre-washed to adjust ph, ash and floaters. Best suited for the removal/reduction of higher molecular weight organics e.g. tannins, vegetation. Ideal for potable water filtration and wastewater Note: *BAC is biological activity on the carbon surface that further enhances carbon activity Valve, Control & Configuration Options: Single filter or multiple-filter configuration Free-standing, skid-mounted or containerised systems fully plumbed & wired Timer, water meter, pressure differential or external signal backwash initiation Single or twin, timer or metered control; or alternating, sequential or parallel controls for up to four filters Top-mount or side-mount 3 cycle automatic valves on filters 30cm to 07cm diameter Hydraulic or pneumatic valves with stager and controller in Nema enclosure on filters 76cm to 60cm diameter FILTERS (Dia x Height) cms inch 2 IN/OUT SERVICE BACKWASH 30 x 30 2 x x 65 4 x x 65 6 x x 57 2 x x x 72 & x x x x x x x x x x x x Base and valve not included. 2Flow rates are a guide only based on dechlorination using GC0 carbon. Lower flow rates will be required for chloramines and heavy organics. Refer Dowdens for sizing. Minimum backwash pressure required 75kpa. Max. inlet pressure 600 kpa with no water haer. For open discharge (e.g. tank filling), use solenoid valve, diaphragm valve or NHWBP option to provide back-pressure when filter is backwashing. Refer Dowdens for information., Q47 NTH Q4700

2 RLC SERIES RESIDENTIAL & LIGHT COMMERCIAL AUTOMATIC CARBON MEDIA FILTERS FOR POTABLE & PROCESS WATERS CARBON OPTIONS GC0: A high quality general purpose coconut carbon that works by adsorption of small molecular weight organics from potable water and wastewater. Ideal for dechlorination, de-ozonation and pesticide removal GC0N: A very high-activity and high-performance coconut carbon. The carbon works by adsorption and BAC*. Highly pre-washed to reduce ph. Ideal for beverage plants, aquaculture and pre-filters for renal dialysis water treatment systems GA0N: A high quality general purpose coal-based carbon that works via adsorption and BAC*. Pre-washed to adjust ph, ash and floaters. Best suited for the removal/reduction of higher molecular weight organics e.g. tannins, vegetation. Ideal for potable water filtration and wastewater Note: *BAC is biological activity on the carbon surface that further enhances carbon activity AUTOMATIC BACKWASH 3-cycle valve with a 7 day timer control that backwash, purge, rinse and return to service at selected intervals. Uses safe 2volt power from the wall mount transformer supplied. MANUAL BACKWASH Economical filters with backwash flow control and ball valve. Turn the rotary valve handle to backwash the filter. Ideal where electric power is not available or filtering water where minimum backwash waste is required e.g. tank water. MODEL DESCRIPTION In/Out Drain Max. flow lpm * Backwash flow - lpm* Install area w x d x h (cm) MANUAL WTWFC7M WTWFC9M WTWFC0M WTWFC2M WTWFC7M-O WTWFC9M-O WTWFC0M-O WTWFC2M-O COCONUT CARBON 78 x 890 Tank 229 x 2 Tank 4 x 370 Tank 305 x 3 Tank COAL CARBON 78 x 890 Tank 229 x 2 Tank 4 x 370 Tank 305 x 3 Tank x x 3 x 27 x x 29 x x 3 x 55 x x 3 x 27 x x 29 x x 3 x 55 AUTOMATIC WTWFC9A WTWFC0A WTWFC2A WTWFC4A WTWFC9A-O WTWFC0A-O WTWFC2A-O WTWFC4A-O COCONUT CARBON 229 x 2 Tank 4 x 370 Tank 305 x 3 Tank 355 x 6 Tank COAL CARBON 229 x 2 Tank 4 x 370 Tank 305 x 3 Tank 355 x 6 Tank x 55 x x 55 x x 55 x x 55 x x 55 x x 55 x x 55 x x 55 x 88 Flow rates are a guide only based on dechlorination using GC0 carbon. Lower flow rates will be required for chloramines and heavy organics. Refer Dowdens for sizing. Minimum backwash pressure required 75kpa. Max. inlet pressure 600 kpa with no water haer. For open discharge (e.g. tank filling) use solenoid valve & switch kit option to provide back-pressure when filter is backwashing. Refer Dowdens for information., Q47 NTH Q4700

3 C&I SERIES Glass Media : Manufactured from % recycled, crushed and treated fused silicon dioxide. The unique smooth surface of glass media discourages bio-mass growth making it ideal for potable, medical and laboratory applications. Unlike other medias Glass is less likely to clump with oil and grease and cleans easily with degreasers, making it ideal for carwash filtration. Features High filtration performance 5-0 micron* removal Filtration throughout the entire bed depth for increased contaminant retention High service flow with superior filtration over sand and mixed bed filters Long lasting media (>5 years) with low attrition Simple periodic backwash keeps the media clean and operating efficiently Applications Potable Water Supplies Medical and laboratory Car Wash Cooling Towers unequalled Turbidity removal RO Pretreatment for SDI reduction Municipal Water Treatment, pressure and gravity filters higher flow, lower pressure drop and superior filtration performance Wastewater Polishing for TSS reduction Precipitated metals removal PERFORMANCE GUIDE Valve, Control & Configuration Options: Single filter or multiple-filter configuration Free-standing, skid-mounted or containerised systems fully plumbed and wired Timer, water meter, pressure differential or external signal backwash initiation Single or twin, timer or metered control; or alternating, sequential or parallel controls for up to four filters Top-mount or side-mount 3 cycle automatic valves on filters 30cm to 07cm diameter Hydraulic or pneumatic valves with stager and controller in Nema enclosure on filters 76cm to 60cm diameter FILTERS (Dia x Height) cms inch IN/OUT 2 SERVICE BACKWASH 30 x 30 2 x x 65 4 x x 65 6 x x 57 2 x x x 72 & x x x x x x x x x x x x Base and valve not included. 2Flow rates are a guide only. Higher flow rates may be achieved with low sediment and turbidity water. Lower flow rates may be required for high sediment and turbidity waters. *Guide only, filtration efficiency is dependant on raw water quality and flow rate. Minimum backwash pressure required 75kpa. Maximum inlet pressure 600 kpa with no water haer. For open discharge (e.g. tank filling), use solenoid valve, diaphragm valve or NHWBP option to provide backpressure when filter is backwashing. Refer Dowdens for information., Q47 NTH Q4700

4 C&I SERIES COMMERCIAL & INDUSTRIAL FILTERS FOR POTABLE & PROCESS WATERS. FEATURING DMI65 MEDIA USING CHLORINE OXIDATION Chlorine peristaltic dose pump Autotrol valve/control Fleck valve/control THE PROCESS: Soluble iron and manganese are oxidised by chlorine and precipitated out of solution. Hydrogen Sulphide is reduced by oxidation to a sulphur precipitate. The filter media is oxidised by dosing a liquid chlorine solution prior to the filter by means of a peristaltic dosing pump. The dosing pump is activated either by a flow switch that starts the pump when flow is detected or wire it directly to the water supply pump pressure switch or control box. The precipitates are trapped in the filter bed and removed by backwashing VALVE, CONTROL & CONFIGURATION OPTIONS: Single filter or multiple (4) filter configuration Free-standing, skid mounted or containerised systems, fully plumbed and wired Timer, water meter, pressure differential or external signal backwash initiation Single or twin, timer or metered control; or alternating, sequential or parallel controls for up to four filters Top-mount or side-mount 3 cycle automatic valves on filters 30cm to 07cm diameter Hydraulic or pneumatic valves with stager and controller in Nema enclosure with filters 76cm to 60cm diameter FILTERS (Dia x Height) cms inch IN/OUTLET DRAIN SERVICE 2 m 3 /hr BACKWASH m 3 /hr 30 x x 65 x 65 5 x 57 6 x x x x x x x 28 2 x 52 4 x 65 6 x 65 2 x x x x x x x x 86 & & Not including tank base or valve. 2 Flow rates are a guide only. Higher flow rates may be achieved with low contaminant loading. Lower flow rates may be required with high contaminant loading. Minimum backwash pressure required 75kpa. Maximum inlet pressure 600 kpa with no water haer. For open discharge (e.g. tank filling), use solenoid valve, diaphragm valve or NHWBP option to provide back-pressure when filter is backwashing. Refer Dowdens for information., Q47 NTH Q4700

5 RLC SERIES AUTOMATIC RESIDENTIAL & LIGHT COMMERCIAL FILTERS FOR POTABLE & PROCESS WATERS. FEATURING DMI65 MEDIA USING CHLORINE OXIDATION THE PROCESS Soluble iron and manganese are oxidised by chlorine and precipitated out of solution. Hydrogen Sulphide is reduced by oxidation to a sulphur precipitate. The filter media is oxidised by dosing a liquid chlorine solution prior to the filter by means of a peristaltic dosing pump. The dosing pump is activated either by a flow switch that starts the pump when flow is detected or it can be wired directly to the water supply pump pressure switch or control box. The precipitates are trapped in the filter bed and removed by backwashing the filter. AUTOMATIC CONTROL OPTIONS Timer: Feature a 24 hour, 7 day electronic time clock. The backwash duration (minutes), time of day and the backwash days are calculated and set into the timer. Backwash frequency is determined by the filter size and the iron, manganese and hydrogen sulphide loading. Volume: Feature a water meter with microprocessor. A volume of water is calculated based on the filter size and the iron, manganese & hydrogen sulphide loading, and entered into the microprocessor. The water meter and microprocessor monitor the water flow and initiate a backwash when the preset volume of water has been attained. MODEL DESCRIPTION Max. flow lpm Backwash flow lpm In/Out/Drain () Install area w x d x h (cm) WTWFDMI2A 305 x 3 tank, DMI65 media, filter valve, control & cover, bypass valve, Stenner peristaltic dosing pump & flowswitch 36.0 // 57 x 55 x 55 WTWFDMI4A 356 x 6 tank, DMI65 media, filter valve, control & cover, bypass valve, Stenner peristaltic dosing pump & flowswitch // 63 x 56 x 80 Minimum backwash pressure required 75kpa. Maximum inlet pressure 600 kpa with no water haer. For open discharge (e.g. tank filling), a solenoid valve and switch kit option will be required to provide back-pressure when filter is backwashing. Refer Dowdens for pricing., Q47 NTH Q4700

6 RLC SERIES UP-FLOW RESIDENTIAL & LIGHT COMMERCIAL FILTERS FOR POTABLE & PROCESS WATERS CAUSE Acid water is prevalent along many coastal areas and is the result of the carbon produced from rotting vegetation mixing with water to form carbonic acid. Natural rainwater is generally acidic with the degree of acidity being dependent on the demographics of the region. PROBLEM Acidic water corrodes metal pipes, fittings and water contact appliances and will leach copper from copper pipe causing green/blue staining on fixtures and fittings, pitting and the eventual failure of the piping system. In industry, acidic water or fluids have to be neutralised before disposal or reuse. PROCESS The acid water flows upwards through a bed of alkaline calcite media. The acid dissolves the calcite media adjusting the water to a neutral ph and negating the acidity. The calcite is sacrificial and will require periodic replenishment. CALCITE FILL PORT MODEL DESCRIPTION In/Out Max. Flow lpm Install area w x d x h (cm) WTWFN0UF 4 x 370 Tank, ported flow-thru valve, calcite media, media loading funnel, filter housing, bracket, spanner and 5 micron cartridge / x 39 x 60 WTWFN2UF 305 x 3 Tank, ported flow-thru valve, calcite media, media loading funnel, filter housing, bracket, spanner and 5 micron cartridge / 52 x 4 x 55 WTWFN4UF 355 x 6 Tank, ported flow-thru valve, calcite media, media loading funnel, filter housing, bracket, spanner and 5 micron cartridge / x 44 x 85 Maximum inlet pressure 600 kpa with no water haer., Q47 NTH Q4700

7 C&I SERIES Nexsand is a remarkable advance in media filtration technology. Based on a rare natural mineral that is highly processed and refined, Nexsand s unique properties have radically altered the performance and cost of media filtration. The hardness, stability and micro-porous character of nexsand makes it a perfect filtration media for virtually every application in the water and wastewater treatment industry. Features High filtration performance 3-5 micron removal. High capacity filtration throughout the entire nexsand bed depth provides more than twice the capacity of multi-media filtration. High Service Flow, 3-4 times that of multimedia with superior filtration. Long lasting media (>5 years) with low attrition Simple periodic backwash keeps the media clean and operating efficiently. Applications Potable Water Supplies Cooling Towers unequalled Turbidity removal RO Pretreatment superior SDI reduction Municipal Water Treatment, pressure and gravity filters higher flow, lower pressure drop and superior filtration performance Wastewater Polishing exceptional TSS removal Precipitated metals removal PERFORMANCE GUIDE Irrigation Valve, Control & Configuration Options: Single filter or multiple-filter configuration Free-standing, skid-mounted or containerised systems fully plumbed and wired Timer, water meter, pressure differential or external signal backwash initiation Single or twin, timer or metered control; or alternating, sequential or parallel controls for up to four filters Top-mount or side-mount 3 cycle automatic valves on filters 30cm to 07cm diameter Hydraulic or pneumatic valves with stager and controller in Nema enclosure on filters 76cm to 60cm diameter FILTERS (Dia x Height) cms inch IN/OUT 2 SERVICE BACKWASH 30 x 30 2 x x 65 4 x x 65 6 x x 57 2 x x x 72 & x x x x x x x x x x x x Base and valve not included. 2Flow rates are a guide only. Higher flow rates may be achieved with low sediment and turbidity water. Lower flow rates may be required for high sediment and turbidity waters. Minimum backwash pressure required 75kpa. Maximum inlet pressure 600 kpa with no water haer. For open discharge (e.g. tank filling), use solenoid valve, diaphragm valve or NHWBP option to provide back-pressure when filter is backwashing. Refer Dowdens for information., Q47 NTH Q4700

8 RLC SERIES AUTOMATIC & MANUAL RESIDENTIAL & LIGHT COMMERCIAL FILTERS FOR POTABLE & PROCESS WATERS AUTOMATIC VALVE Incorporate a 3-cycle valve with a variable timer control that backwash, purge, rinse and return to service at selected intervals e.g. every day, every week. Uses safe 2 volt power from wall mount transformer supplied. MANUAL VALVE Economical back-washable filters. Simply turn the rotary valve handle to backwash the filter. Complete with backwash flow control and ball valve. Ideal for sites where electric power is not available or for filtering water where minimum backwash waste is required e.g. tank water. MEDIA OPTIONS NEXSAND: Based on a rare natural mineral that is highly processed and refined. The hardness, stability and micro-porous character of nexsand makes it a perfect filtration media for virtually all sediment filter applications. High performance, high capacity sediment and turbidity removal. Filtration 3-5 micron* dependant on flow rate and water quality GLASS: Crushed, treated glass media. Good quality general purpose media. Does not promote bio-mass growth thereby limiting bacteria proliferation. Filtration to 3-5 micron* dependant on flow rate and water quality FILTER-AG: Lightweight media with fractured and irregular surfaces for good depth filtration with low backwash requirement. Ideal for gravity feed systems. Filtration -* micron dependant on flow rate and water quality MODEL FILTER TYPE TANK SIZE D x H (cm) In/Out Drain **Flow Rate lpm Backwash lpm Installation area w x d x h (cm) AUTOMATIC WTWFXM9A WTWFXM0A WTWFXM2A WTWFXM4A NEXSAND 23 x 22 x x x x 55 x x 55 x x 55 x x 55 x 88 WTWFGM7A WTWFGM9A WTWFGM0A WTWFGM2A WTWFGM4A GLASS 8 x x 22 x x x x 55 x 8 30 x 55 x x 55 x x 55 x x 55 x 88 MANUAL WTWFXM9M WTWFXM0M NEXSAND 23 x 22 x x 55 x x 55 x 60 WTWFGM9A WTWFGM0A GLASS 23 x 22 x x 55 x x 55 x 60 WTWFFA9M WTWFFA0M FILTER-AG 23 x 22 x x 55 x x 55 x 60 *Guide only. **Lower flow rates may be required for high sediment water. Minimum backwash pressure required 75kpa. Max. inlet pressure 600 kpa with no water haer. For open discharge (e.g. tank filling), use a switch kit & solenoid valve to provide back-pressure when filter is backwashing. Refer Dowdens for pricing., Q47 NTH Q4700

9 POLYPROPYLENE SINGLE & DUAL POLYPROPYLENE FILTER HOUSING KIT ASSEMBLIES 0 & LENGTH TO SUIT STANDARD 2.5 & 4.5 DIAMETER CARTRIDGES Single filter kits: bracket, screws and housing spanner, supplied loose. Dual filter kits: 2 x housings, x coon bracket, screws and housing spanner, supplied assembled. Filter cartridges not included. APPLICATIONS: Dual filter systems are ideal for potable water systems and pre-treatment for reverse osmosis and ultraviolet disinfection systems where sediment and organics must be removed. Single Housing: for light sediment only, no organics = x polyspun sediment cartridge Dual Housings: for light sediments and organics = x polyspun sediment, x carbon cartridge Dual Housings: for heavy sediment = x pleated sediment, x polyspun sediment cartridge CODE DESCRIPTION IN/OUT WTFH0SW34K 0 x 2.5 Single Housing kit ¾ WTFHSB34K x 2.5 Single Housing kit ¾ WTFH0LB0K 0 x 4.5 Single BIG BLUE Housing kit WTFHLB5K x 4.5 Single BIG BLUE Housing kit ½ WTFH0DA 0 x 2.5 Double Housing kit ¾ WTFHDA x 2.5 Double Housing kit ¾ STAINLESS STEEL SINGLE STAINLESS STEEL FILTER HOUSING KIT ASSEMBLIES 0, & 30 LENGTH TO SUIT STANDARD 2.5 DIAMETER CARTRIDGES APPLICATIONS: All 36 Stainless Steel suitable for high pressure, high temperature & high purity applications e.g. Laboratory, Medical, Pharmaceutical, Beverage & Juice Filtration or for heavy duty applications. Accept standard double open end (DOE) cartridges. CODE DESCRIPTION IN/OUT WTFH28 0 SS Housing w/- bracket, screws & lock pin ¾ WTFH29 SS Housing w/- bracket, screws & lock pin ¾ WTFH2 30 SS Housing w/- bracket, screws & lock pin ¾ P: , Q47 P: NTH Q4700

10 POLYPROPYLENE Polypropylene Housings 5, 0, & Length to suit standard 2.5 and 4.5 diameter (Big Blue) cartridges APPLICATIONS: Cold and warm water use only Domestic drinking water Single tap (5 & 0 ) or whole house filtration ( ) Food service Brackish water or salt water use Ideal for aquaculture & marine use Plating baths Pre-filtration for small Ultraviolet & Reverse Osmosis systems General residential, coercial, agricultural and industrial duties Accepts most industry-standard cartridges. CODE DESCRIPTION IN/OUT WTFH05W 5 x 2.5 White ¼ WTFH0WSL 0 x 2.5 White Double O Ring Seal ¼ WTFH0CSL 0 x 2.5 Clear Low Pressure Only ¼ WTFH0W/2 0 x 2.5 White ½ WTFH0BSL 0 x 2.5 Blue Slimline Style ½ WTFH0W 0 x 2.5 White Heavy Duty w/- air relief ¾ WTFH0B 0 x 2.5 Blue Heavy Duty w/- air relief ¾ WTFH0C 0 x 2.5 Clear Lower Pressure Only ¾ WTFHB x 2.5 Blue Heavy Duty w/- air relief ¾ WTFHFPM x 2.5 Blue Slimline Style ¾ WTFH0LB0 0 x 4.5 Big Blue w/- air relief WTFHLB0 x 4.5 Big Blue w/- air relief WTFHLB5 x 4.5 Big Blue w/- air relief ½, Q47 NTH Q4700