A Sintered Wash Bottle Head (DIN) is a specialized laboratory accessory designed to be fitted onto a wash bottle or similar liquid container to allow filtration or dispensing through a sintered glass element. It is manufactured according to DIN (Deutsches Institut für Normung) standards, ensuring dimensional accuracy, interchangeability, and laboratory compatibility. The head typically features a sintered glass disc — made of porous borosilicate glass — which functions as a filter or diffuser, allowing even dispersion of liquid or gas, or removal of particulates during rinsing or dispensing. The head may have one or more glass or plastic tubes, such as a delivery nozzle and vent tube, and it can be used with custom or DIN-standard wash bottles. These heads are especially useful in analytical chemistry, microbiology, and cleanroom applications, where purity, filtration, and non-contaminating delivery of liquids like distilled water, solvents, or acids is essential.
Technical Specification of Sintered Wash Bottles Head DIN
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Material:
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Main body: Borosilicate glass or chemically resistant plastic
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Filter element: Sintered glass disc (typically porosity grades 0–4)
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Standard: Conforms to DIN specifications for laboratory glassware (e.g., DIN 12591 or DIN 12671)
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Connection: Fits onto standard DIN-neck wash bottles or flanged adapters
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Filtration/Pore Size: Various porosity grades available:
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Grade 0: Coarse (160–250 μm)
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Grade 1: Medium (100–160 μm)
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Grade 2: Fine (40–100 μm)
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Grade 3: Very Fine (16–40 μm)
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Grade 4: Ultra Fine (5–15 μm)
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Design Features:
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Inlet tube for bottle connection
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Outlet/delivery tube with sintered filter
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Some models include a vent or secondary tube for pressure equalization
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