A manufacturer specializing in filtration equipment that consistently develops, designs, manufactures, sells, and after-sales equipment. Fujika Water Filter Co., Ltd. HOME > Product Information > Sand Filter Manual / Automatic Construction Features specification Type of filter medium Construction (1) Raw water valve (2) Hair catcher (3) Pump motor (4 ) Check valve (5) Auxiliary valve (6) Electric 5-way valve * (7) Water tap (8) Air bleeding valve (9) Drainage Valve (10) Pressure gauge (11) Automatic air bleeding valve (12) Filtration tank * In the case of manual operation, it is a manual 5-way valve. ▲ Go to page header Features [Easy to operate! ] The manual type can be easily filtered, washed, and backwashed with a single operating lever. With the automatic type, if you set the cleaning time with a timer, you can automatically filter and manage backwashing. [Filter material] A filter material that meets the standards for water supply facilities. Water is slowly filtered by forming a filtration layer and increasing the filtration area. As a result, the cohesive effect is sufficiently increased and beautiful water is produced. Excellent filtration accuracy is possible by selecting a suitable filter medium according to the application and conditions and using it properly. ▲ Go to page header specification For pool Key point / type Manual SF3-1 SF5-2 SF7-3 SF10-4 Automatic SF3-1AE SF5-2AE SF7-3AE SF10-4AE Filtration capacity m³ / Hr 30 40 60 100 Tank (standard) mm 1200 ° x 1500H 1600 ° x 1500H 1900 ° x 1500H 2400 ° x 1500H Power used kw 2.2 3.7 5.5 5.5 7.5 7.5 Piping diameter mm 65 80 100 125 Standard machine room 3,600x3,600 3,600x4,500 4,500x4,500 5,400x5,400 Operating weight kg 3,000 5,500 9,000 17,000 For bathtub Key point / type Manual SF-05 SF-1 SF2-05 SF3-1 Automatic SF-05AE SF-1AE SF2-05AE SF3-1AE unit SF-05AEUN SF-1AEUN SF-2AEUN SF3-1AEUN Filtration capacity m³ / Hr ~ 5 ~ 10 ~ 15 ~ 20 Tank (standard) mm 500 ° x 1000H 700 ° x 1200H 800 ° x 1200H 1000 ° x 1000H Power used kw 0.75 0.75 1.5 2.2 Piping diameter mm 32 40 50 65 Standard heat exchanger (unit only) kcal / hr 25,000 40,000 50,000 60,000 Operating weight kg (unit) 450 (850) 950 (1,100) 1,600 (1,750) 3,000 (3,200) Bathtub water volume m³ 2.5-3 Five 7.5-8 Ten -The material of the tank is steel plate, stainless steel, and FRP. -Even with specifications other than the above, we will design according to the installation location and conditions. If you contact us with your desired specifications, we will mail or mail a reference drawing that meets the conditions. ▲ Go to page header Type of filter medium ● Filter sand The raw material is hard quartz sand that is naturally produced. It is used to detain flocs and suspended solids (SS suspend solid) between sand particles (very little contamination of mother, feldspar, and shellfish). * There are two types of filtered sand, one for rapid filtration and the other for slow sand filtration, and the difference mainly depends on the particle size. Criteria for selecting filtered sand for water supply (Japan Water Works Association standard JWWA A103-1988) Abstract (1) Appearance is hard and has a lot of quartz, without a lot of impurities such as dust and clay, or flat or fragile sand. Even sand is good. In particular, it is desirable that the rapid filtration sand contains a small amount of iron sand or fragile sand. (2) The cleaning turbidity shall be 30 degrees or less. (3) The specific gravity should be in the range of 2.57 to 2.67. (4) Ignition loss shall be 0.75% or less. * 1 (5) The wear rate must be 3% or less. * 2 (6) Hydrochloric acid solubility should be 3.5% or less. The effective rate should be in the range of 0.45 to 0.70 mm for rapid filter sand and 0.30 to 0.45 mm for slow filter sand. (8) The uniformity coefficient shall be 1.7 or less for rapid filtration sand and 2.0 or less for slow filtration sand. (9) The maximum diameter shall be 2.0 mm or less, the minimum diameter shall be 0.3 mm or more for rapid filtration sand, and 0.18 mm or more for slow filtration sand. * 1 Especially in the case of rapid filtration sand, it is desirable to have less ignition loss. * 2 In particular, in the case of rapid filtration sand, the wear rate should be as small as possible. ● Filter gravel The raw material is natural rounded hard gravel. It is laid under a filter medium layer such as filtered sand or anthracite to prevent the filter medium from falling to the bottom and to help the wash water to rise evenly during backwashing. Criteria for selecting filtered gravel for water supply (Japan Water Works Association standard JWWA A103-1988) Abstract (1) Appearance should be hard, rounded gravel that does not contain many impurities such as dust and clay, or flat or fragile particles. .. (2) The cleaning turbidity shall be 30 degrees or less. (3) The shape of the gravel particles should be 5 times or more the longest axis and 2% or less by weight. (4) The specific gravity shall be 2.50 or more in a saturated surface dry state. (5) Hydrochloric acid solubility should be 3.5% or less. (6) The particle size of the filtered gravel shall be 15% or less in total, which is the sum of the particle size of each layer below the design minimum diameter and the weight ratio of the particle size above the design maximum diameter. [Main applications of filtration sand and filtration station] Circulation filtration of water for baths and pools Effective use of rainwater Filtration ponds such as water purification plants Purification of factory wastewater Purification of industrial water ● Manganese sand [Features] Iron-removing and manganese-removing filter media whose mother body is filtered sand for water supply Used for hypochlorous acid oxidation Suitable for slow sand filtration [Main applications] Treats iron and manganese contained in groundwater and river water and uses them for drinking water, industrial water, etc. ● Manganese zeolite [Features] A porous base surface coated with a drug in the form of manganese dioxide Higher filtration effect than manganese sand Demonstrates excellent effects in removing manganese and chromaticity ● Activated carbon [Features] Excellent adsorption speed and adsorption amount Recycled used charcoal There are coal-based and coconut-based [Main applications] Water supply treatment Deodorization, decolorization and removal of trihalomethane precursors, anionic surfactants, general organic chemicals, pesticides, etc. Purification of raw boiler water, protection of ion exchange resin and treatment of water for pure water equipment General wastewater treatment Removes COD, TOC, oil, decolorization (humic acid), heavy metals, etc. of industrial wastewater and domestic wastewater Dechlorination treatment Chlorine removal in water purifiers, drinking water, process water production, etc. Odor treatment Removes adsorption of malodor generated in human waste, sewage, garbage treatment plants, etc. and collects various solvents ● Anthracite filter anthracite The raw material is crushed anthracite. It is suitable for multi-layer filtration because it has a smaller specific gravity and a larger porosity than filtered sand. [Features] Light specific gravity, easy surface cleaning and backflow cleaning Rapid filtration blockage due to diatoms can be prevented by anthracite with a large porosity. By filtering coarse materials such as plankton and flocs with the anthracite layer, the burden on the sand layer can be reduced, the filtration duration can be extended, the filtration speed can be increased, and the frequency of backflow cleaning can be reduced. Excellent separation from foreign matter during backflow cleaning Good adsorption during filtration when treating water containing oils and fats [Main applications] Increase the filtration rate for water supply and increase the amount of filtered water Purification of industrial water cooling water, cleaning water, raw material water, boiler water supply, etc. Purification of urban sewage and industrial water for sewage Factory effluent treatment Purification of effluent that causes pollution, prevention of river pollution Circulation filtration of baths, pool water baths, pool water ● Chamotte ● Ceramic sand Although the names are different, you can think of them as the same. Fire-resistant clay is fired and dehydrated and is rich in SiO2 and Al2O3. It is a porous material, and iron-removing filter media (iron zeolite) and manganese-removing filter media (manganese zeolite) are made by chemical treatment using this as a base. [Features] It has holes and is porous, so it has excellent adsorptivity. Excellent heat insulation, fire resistance, and water retention [Main applications] Filter media for pools, baths, aquariums, cooling towers, etc. ▲ Go to page header SITEMAP What's New Selection of filtration equipment Technology Maintenance and various constructions About us Main delivery destinations / delivery results History Management Philosophy / Policy President's blog Contact Us Product Info Diatomaceous earth filtration device Manual type Diatomaceous earth type filtration device automatic type Sand type filtration device Manual type / automatic type Cartridge type filtration device Fujika rainwater filtration device Disaster filtration device Sterilizer Automatic chlorine supply device Hair catcher Spa vacuum worker customer support Daily pool water quality management Pool trouble Q & A About pool heat Legionellosis and its preventive measures Filtration equipment Q & A Diatomaceous earth filtration equipment Filtration device Q & A Sand type / cartridge type filtration device Site Terms of Use / Personal Information Protection ▲ Go to page header