A Subject to change without prior notice 14 March 2021 Chemical technique FLW Clamp pipe connections (custom products) The FLW clamp pipe connections were developed by LINNEMANN and can be used both for liquid and gaseous media as well as for bulk goods. Preferential fields of application are chemical, plastic, cosmetics, pharmaceutical, food, and beverage industry. The assembly of pipes with large pipe dimensions in plant construction requires special pipe connections. Special designs are expensive. LINNEMANN GmbH in Tübingen therefore offers the FLW pipe connection system. With diameters of 300 mm upwards, rigid or flexible pipes or hoses can be assembled quickly and tightly and separated again if necessary, e.g. for maintenance or cleaning purposes. Tongue and groove flanges of stainless steel or other materials, appropriate O-rings – also FDA-conform – and clamps form a secure connection at vacuum and overpressure from - 30 °C to + 200 °C. Blind covers are available for terminations. A special feature of this system is the wide range of clamping rings with two-part or multi-part clamp segments. Safety locks prevent accidental release. An optional, additional, flexible clamping possibility in the area of the joint ensures optimum distribution of the connecting force. The FLW clamp connections are used with abrasive bulk materials or also gases. Typical media are grain in mills, chips in fodder plants, pellets in the plastic industry, mixing components in the production of fertilizers but also fresh air and exhaust air in painting plants and in clean room technology. The LINNEMANN GmbH delivery scope includes special designs: • Flanges with welded end for pipe inside dimensions Ø 200 – 800 mm • Flange welded end with wall thickness greater than 2 mm • Gaskets in the materials NBR, EPDM, VMQ or on request • clamping band-clamping rings with clamp segment parts and closure and optionally with swing bolt joint The desired clamping ring type is produced according to the flange dimension specification according to customer inquiry and the setting possibilities of the clamping band required by the customer. Welding neck flanges EN 1092-1 + ASME The flange connections can be used for gaseous and liquids as well as for bulk goods. Preferential fields of application are chemical, foodstuff, beverage, plastic, concrete, mining industries and power plants. Pre-welded flanges represent a very stable, releasable screwed flange connection for pipes which is used for pressure levels from ND 6 to ND 40 or 150 to 600 lbs. They are therefore used commonly in process plants in the chemical, plastic, cement, mining and power station industries. But they are also used in the food and beverages industry. In the assembly of the pre-welded flanges, the gasket is positioned between the end faces so that they do not directly touch. Bolts are pushed through the holes in the flanges and locked with nuts. This results in very pressure-resistant and tight hole flange connections. The LINNEMANN GmbH delivery scope includes flanges, blind flanges and sight glasses of the following DIN standards: • DIN 2527 • DIN 2631 • DIN 2632 • DIN 2633 • DIN 2633 • DIN 2634 • DIN 2635 Flanges according to EN 1092-1 or ASME B 16.5 are also offered. DIN and EN flanges are available in sizes DN10 to DN500 or ASME flanges in nominal sizes DN1/2“ to DN12“. AISI321, AISI 316Ti, AISI 316L, AISI 904L as well as 1.4541, 1.4571, 1.4404, 1.4435 and 1.4539 are available as flange materials. Fittings for welding DIN 2605, DIN 2615, DIN 2616, DIN 2617 The fittings for welding are used with process engineering facilities with simple requirements for gaseous and liquid media as well as for bulk goods. Fittings and mouldings for welding in according to DIN serve to provide secure, permanent connections of pipes. They are used in simple industrial applications for gaseous and liquid media. The LINNEMANN GmbH program offers cold-formed welded fittings as a standard. Heat-treated welded fittings can also be provided on request. The surfaces are bare metal and different surface qualities and surface roughness depths are available depending on the production process and on request. The flange sizes DN10 – DN300 belong to the catalog delivery program: • Reducing pieces centrica, DIN 2616 • Reducing pieces eccentric, DIN 2616 • Bends 45°, DIN 2605 • Bends 90°, DIN 2605 • T-pieces, DIN 2615 • Bottem convex and caps, DIN 2617
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