Catalog excerpts
FILTERS IN DRIP IRRIGATION The filters which are indispensable of the drip irrigation systems take place between the pressure unit which is the heart of the drip irrigation system and the drip irrigation pipe. The lifetime of the laterals which are the most important parts of the drip irrigation is assessed according to their functional continuation of the drips which are placed on these laterals. The water pass channels which take place in the drips have been manufactured too narrow so as to diminish the energy of water and decrease the outlet pressure. This increases the partly or completely blockage risk of the drips. The blockage of these drips causes to end the function of the drip irrigation pipe. Therefore, the filtering group consists of a vital point in the system. At the meantime, it will demolish the product quantity and quality as this blockage risk will cause defects in equal water distribution. Hence, this will result the decrease of the product amount to be harvested from unit area. THE FUNCTIONS OF FILTERS IN GENERAL: • To filter water with less pressure loss, • To avoid solid matters run in, • To throw the solid matters out of the system easily, • To put the filter in the initial position after every back flush and consume less water during this operation. ISSUES TO BE CARED WHILE SELECTING FILTER: The values such as • The place where the water will be taken (well, lake, pool, etc.), • The filthiness level of water (the density ratio of the pollutants such as grittiness and debris or moss), • Flow rate of water, • Diameter of pump outlet should be taken into consideration. THE CHARACTERISTICS REQUIRED IN A GOOD FILTER: • To infiltrate water without decreasing the water flow; • Not to miss the solid matters; • To throw the solid matters that it holds out of the system easily; • To consume very little water during the back flush; • Not to facilitate the augmentation of the bacteria. DISC FILTER: The filter with disc is consisted of synthetic discs which are seen to be overlapped on a column. These discs which function as a filter are tightened one above another. On the top and bottom surfaces of the discs are thin channels which set the filtering capability of the filter in micron level. These channels on the discs are on the opposite direction to each other. When the discs are put one above each other, the channels form many filtering layers which are cross wise. The water passing through these channels is infiltrated up to requested particle diameter. ISSUES TO BE CARED IN FILTER USE: A. Before starting the pump, the filter should be checked whether it is blocked or not. For this purpose, the filter should be controlled to see if it is clean or not by opening the cover of disc or screen filter. B. When the filter is blocked during the irrigation, the filter input pressure increases and the output pressure decreases. When it is noticed that 1 Bar or more difference occurs between the input and output pressures, the filter needs to be cleaned. The blockage of the filter which has only one pressure gauge is discovered when the pressure gauge starts shaking. The most important stage in the filtering systems is the cleaning process of the filters. This is an issue which would never be forgotten. This process should definitely be realized due to the fact that the drip pipes are not blocked. CLEANING OF THE FILTERS: A. Unmounting and cleaning: When a pressure difference is seen between the system input and output in the single or having no back flush systems, the system is stopped. After the filter is unmounted, disc or screen part are cleaned, they are mounted again and the system is started. B. Back flush cleaning: When there is pressure loss at the input and output of the system with the filter group having back flush valves in their system, the back flush valves are turned on and the accumulated particles in the system is thrown out by means of the valves and back flush. C. Automation system: Carrying out the process by means of electronic circuits which perceives the pressure differences in the system of the back flush process.
Open the catalog to page 1FILTER SELECTION IN TOO SANDY ENVIRONMENTS: An excessive sand and debris may be seen especially due to the irrigation water taken from wells as the well is old or the use of bigger submersibles or the regional natures. In such environments, the use of hydro-cyclone is of a great importance so as to infiltrate the heavy sand particles in the system via cyclone movement for the purpose to enable the operation of our filter and duly functioning. According to the water flow, the hydro-cyclone may be single as well as being multi. The hydro-cyclone operates with the logic that the water moves in...
Open the catalog to page 2Bağlantı Çapı Connection Diameter Cinsi Type inch Kısa - Short Uzun - Long Kısa - Short Uzun - Long D Bağlantı Çapı Connection Diameter Cinsi Type Kısa - Short Uzun - Long Kısa - Short Uzun - Long Kısa - Short Uzun - Long PLASTİK FİLTRE TEKNİK ÇİZİMLERİ PLASTI
Open the catalog to page 3Giriş Basıncı- Input Pressure Çıkış Basıncı - Output Pressure Toplam Basınç (Bar) - Total Pressure (Bar) -0,5 İterasyon Sayısı - Number of Iterations ERHAS PLASTİK DİSK FİLTRELER BASINÇ KAYBI Erhas Plastic Disc Filters Head Loss Basınç Kaybı - Head Loss (Bar) Vektörel Hız Dağılımı ve Basınç Dağılımı Renk Skalası Vectorial Velocity Distribution and Color Scale of Pressure Distribution Akış Eğrileri - Flow Curves Tekli Kısa / Single Short İkiz Kısa / Double Short ERHAS PLASTİK ELEK FİLTRELER BASINÇ KAYBI Erhas Plastic Screen Filters Head Loss İç Yüzey Basınç Dağılımı - Inside Surface Pressure...
Open the catalog to page 4Basınç Kaybı - Head Loss (Bar) Y TİP DİSK FİLTRELER / Y TYPE DISC FILTERS Basınç Kaybı - Head Loss (Bar) Y TİP ELEK FİLTRELER / Y TYPE SCREEN FILTERS TEKNİK DETAYLAR/ TECHNICAL SPECS Gövde - Body ÖLÇÜLER / DIMENSIONS Polipropilen - Polypropylene Cinsi Type PP Disk - PP Disc Paslanmaz çelik elek Stainless steel screen Kauçuk - Rubber Verilen sonuçlar 130 mikron disk ve elek iç takımlar içindir. pH>4 | Maksimum sıcaklık 60 C | Maksimum basınç 10 Bar Given results are for 130 micron disc and screen cartridges. pH>4 | Maximum temperature 60 C | Maximum pressure 10 Bar Bağlantı Çapı Connection...
Open the catalog to page 5All ERHAS BORU VE MAKINA EKIPMANLARI ENDUSTRISI A.S. catalogs and technical brochures
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TECHNICAL INFORMATION
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