Sand swimming pool filter OSLO

wire-woundfor public pool

Overview
AstralPool high performance vertical bobbin wound filters are manufactured using reinforced polyester with glass fibre, completely anti-corrosive, with high mechanical, chemical and thermal resistance. One of its main characteristics is the height of its filtering layer; the higher the layer, the better the performance.

Characteristics

• Manhole Ø 400
• MANUAL AIR PURGE
• PVC piping
• Side manhole Ø 400
• PP nozzle plate
• Connection for air washing
• Polyester foot
• Sight glass: can be placed in different positions for inspection of sand level and checking expansion of the layer during washing
• Side manhole: removable/positionable to unload filtering medium and facilitate internal access
• Nozzle plate: false bottom system with nozzle plate for air washing; reduces water consumption when air is provided during washing and removes stagnant water areas found in conventional collection arm models
• Collection systems: collector system of arms with 0.3 mm grooves uniformly distributed for correct water circulation
• Maximum operating temperature 50ºC
• Complies with European Directive 97/23/CE on Pressure Equipment (Section 3 of Article 3)
• Hydraulic pressure test at 1.5 x maximum acceptable pressure
• Resistance and thickness calculations based on regulations BS-4994 and AD-Merkblatt N1
• PVC internal parts and piping
• PP nozzle plates
• Lower connection for air washing in models with nozzle plate
• AISI-316 stainless steel screws
• EPDM joints
• Client's choice of connections, sight glasses and manholes
• Various connection and purge diameters
• Upper manhole Ø 400
• Upper air purge connection
• Nozzle plate with 0.5 mm slots
• Collector arms with 0.3 mm slots
• Manhole under plate
• Working pressure 2.5 bar
• Working pressure 4 bar
• Lower water emptying
• Filtering layer 1200 mm
• Filtering layer 1500 mm
• Manometer panel
• Methacrylate sight glass ø 135
• Methacrylate sight glass ø 400
• Side manhole Ø 225 / Ø 400 / Ø 500 / Ø 600
• Lower connection for air washing included as standard in all models with nozzle plates
• Lower sand discharge, only in the Oslo model with collection arms

Advantages

• Increased filtering power yields higher water quality by reducing turbidity and pollutants.
• Longer time between washes as layer height increases, resulting in shorter filter interruptions, lower water consumption and less erosion of filtering material.
• Most effective filtering and washing obtained from recommended combination of anthracite, sand and gravel for 1.2 m high layers, decreasing loss of load and increasing retention power.

Options

• Sightglasses
• Filtering area variations
• Total weight in service
• Optionally, valve batteries can be supplied
• Special heights may be manufactured to order
• Vinylester interior coating available for resistance to ozone (max. ozone concentration 0.4 ppm) or other agents — specify liquid characteristics to manufacture filter to order
• Other options and pressures available on request

Spare parts table
CODE | Description
04611 | 2,5 kg/cm² - Ø 1.050 - 25 m³/h - Outlets 75 mm
04612 | 2,5 kg/cm² - Ø 1.050 - 34 m³/h - Outlets 90 mm
04613 | 2,5 kg/cm² - Ø 1.200 - 33 m³/h - Outlets 75 mm
04615 | 2,5 kg/cm² - Ø 1.400 - 46 m³/h - Outlets 90 mm
04619 | 2,5 kg/cm² - Ø 1.600 - 60 m³/h - Outlets 110 mm
04623 | 2,5 kg/cm² - Ø 1.800 - 76 m³/h - Outlets 125 mm
04624 | 2,5 kg/cm² - Ø 1.800 - 101 m³/h - Outlets 160 mm
04626 | 2,5 kg/cm² - Ø 2.000 - 94 m³/h - Outlets 125 mm
04650 | 2,5 kg/cm² - Ø 1.200 - 45 m³/h - Outlets 110 mm
04651 | 2,5 kg/cm² - Ø 1.600 - 80 m³/h - Outlets 140 mm
04652 | 2,5 kg/cm² - Ø 2.000 - 125 m³/h - Outlets 160 mm
05168 | 4 kg/cm² - Ø 1.050 - 25 m³/h - Outlets 75
05169 | 4 kg/cm² - Ø 1.200 - 33 m³/h - Outlets 75
05170 | 4 kg/cm² - Ø 1.600 - 60 m³/h - Outlets 110
05171 | 4 kg/cm² - Ø 2.000 - 94 m³/h - Outlets 125
05172 | 4 kg/cm² - Ø 2.350 - 130 m³/h - Outlets 140
05173 | 4 kg/cm² - Ø 1.050 - 34 m³/h - Outlets 90
05174 | 4 kg/cm² - Ø 1.200 - 45 m³/h - Outlets 110
05175 | 4 kg/cm² - Ø 1.600 - 80 m³/h - Outlets 140
05176 | 4 kg/cm² - Ø 2.000 - 125 m³/h - Outlets 160
05177 | 4 kg/cm² - Ø 2.350 - 175 m³/h - Outlets 200
07436 | 4 kg/cm² - Ø 1.400 - 46 m³/h - Outlets 90
07437 | 4 kg/cm² - Ø 1.400 - 61 m³/h - Outlets 125
07438 | 4 kg/cm² - Ø 1.800 - 76 m³/h - Outlets 125
07439 | 4 kg/cm² - Ø 1.800 - 101 m³/h - Outlets 160
08693 | 2,5 kg/cm² - Ø 2.350 - 130 m³/h - Outlets 140 mm
08694 | 2,5 kg/cm² - Ø 2.350 - 175 m³/h - Outlets 200 mm
08704 | 2,5 kg/cm² - Ø 2.500 - 150 m³/h - Outlets 160 mm
08706 | 2,5 kg/cm² - Ø 2.500 - 200 m³/h - Outlets 225 mm
08708 | 2,5 kg/cm² - Ø 3.000 - 212 m³/h - Outlets 200 mm
08710 | 2,5 kg/cm² - Ø 3.000 - 282 m³/h - Outlets 250 mm
08712 | 4 kg/cm² - Ø 2.500 - 150 m³/h - Outlets 160
08714 | 4 kg/cm² - Ø 2.500 - 200 m³/h - Outlets 225
08716 | 4 kg/cm² - Ø 3.000 - 212 m³/h - Outlets 200
08718 | 4 kg/cm² - Ø 3.000 - 282 m³/h - Outlets 250
56935 | 2,5 kg/cm² - Ø 2.200 - 114 m³/h - Outlets 140 mm
56936 | 2,5 kg/cm² - Ø 2.200 - 152 m³/h - Outlets 160 mm
57810 | 4 kg/cm² - Ø 2.200 - 114 m³/h - Outlets 140 mm
57811 | Ø 2.200 - 152 m³/h - 4 kg/cm²
04616 | 2,5 kg/cm² - Ø 1.400 - 61 m³/h - Outlets 125 mm

Caractéristiques / spécifications techniques

• Construction material: reinforced polyester with glass fibre (anti-corrosive)
• Internal parts: PVC; nozzle plates: PP
• Screws: AISI-316 stainless steel; joints: EPDM
• Max. operating temperature: 50ºC
• Standard working pressures offered: 2.5 bar and 4 bar
• Filtering layer heights: 1200 mm and 1500 mm (options)
• Nozzle plate slot sizes: 0.5 mm (nozzle plate) and collector arms 0.3 mm
• Includes sight glass options (methacrylate ø 135 and ø 400)
• Manhole options: upper manhole Ø 400; side manholes Ø 225 / Ø 400 / Ø 500 / Ø 600
• Complies with European Directive 97/23/CE; hydraulic pressure test at 1.5x maximum acceptable pressure; calculations per BS-4994 and AD-Merkblatt N1
• Optional vinylester interior coating for ozone resistance (specify liquid characteristics)