A Subject to change without prior notice 16 March 2021 Bulk materials technique In the field of bulk material technology, the LINNEMANN GmbH program contains specially designed, pneumatically operated pinch valves. These are available with a variety of different process connections. The very practical ring grip pipe couplings, which enable easy and safe pipe couplings without the need to weld flanges, are also available for this field of application. The large-radius arcs and other fittings that are required for bulk handling complete the product range. Tube couplings and fittings The Tube couplings are used especially for conveying systems and production lines with which various bulk goods as grain, flour, granule, powder, dust etc. can be conveyed pneumatically with low pressure or overpressure. Preferential fields of application are the chemical-, pharmaceutical-, plastic-, and food industry. In conveyor systems and production plants which transport bulk materials pneumatically with vacuum pressure and overpressure, metal locking clips with screws are pushed over as sleeves to connect burr-free pipe ends. This is especially the case in the chemical, pharmaceutical, plastic and food industry where grain, flour, pellets, powder or dust are conveyed. For pipe outer diameters from DN34 to DN280 LINNEMANN GmbH offers pipe couplings in lightweight and heavy versions either of galvanised steel or stainless steel. To protect them against pressure surges, the heavy pipe couplings can be reinforced with a locking clip which can be ordered as an accessory. The prerequisite for a tight connection is that the outer diameter of the pipes to be connected corresponds to the inner diameters of the pipe coupling. The pipe ends are pushed against each other in the connection so that they are positioned in the middle of the pipe couplings. Before a coupling can be closed by tightening the screws of the clamping rail in assembly, the teeth of the adapter sleeve and the gasket must be offset. The following fittings are offered in addition to the pipe couplings: • Pipe bends with large radius • Branch pieces • T-pieces Pinch valves (PV) The pinch valves can be used for gaseous, liquid, and pasty media as well as for bulk goods, e.g. milk, beer wine, fruitjuice, chocolate, nuts, pulse, mash, feed stuff, varnish, pastes, pills, mud, waste water, dust, ashes, flour, sugar, bran, powder, chips, grain, fertilizer, sand, gravel, concrete and the like. Preferential fields of application are food, beverage, pharmaceutical, cosmetics, chemical, plastic, wood, concrete, and mining industry, purification and power plants.
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