TPi January 2022

Business & market news

Fränkische Rohrwerke optimises existing extrusion line with advanced new extruder machine

Following a modernisation of its machin- ery and equipment already implement- ed by battenfeld-cincinnati over the last few years, Fr nkische now decided to acquire the conical twin screw extruder model conEX NG 65. It has replaced an extruder in an existing line which was about 18 years old, with very satisfying results. battenfeld-cincinnati launched conEX NG, a series of three conical twin screw extruder models over five years ago. Their characteristics include the ability to process an enormous range of different PVC types as well as to withstand high tooling pressures of up to 520 bar. The extruders come with a lengthened preheating zone and an optimised screw design to provide high output rates combined with optimal melt quality. Additional advantages of this conEX version are a reduced footprint, lower investment costs in relation to output rates, and a lower energy consumption than the predecessor model. pipeline. Genebre recommends respecting the installation prescriptions of the balancing valve. If the balancing valve is also used for indirectly reading the transfer flow rate, Genebre recommends it is installed away from direction changes, throttling, adjustment, and shut-off parts to limit interferences and increase reading stability and accuracy of the differential pressure reading. To avoid thickening of mud and difficult- to-remove impurities, the piezometric inlet connections in horizontal paths must always be directed so that inlets are positioned upwards when they are installed. The new valve is complemented with pressure inlets to carry out the indirect reading of the transfer flow. Genebre www.genebre.es Fränkische Rohrwerke www.fraenkische.com battenfeld-cincinnati www.battenfeld-cincinnati.com

Corrugated pipes, which are used worldwide in water management and drainage systems and as cable conduits, require high melt quality and perfect homogeneity during extrusion. For this reason, Fr nkische Rohrwerke Gebr Kirchner GmbH & Co KG, based in Bavaria, Germany recently announced the purchase of a new-generation conEX from battenfeld-cincinnati Austria GmbH. The pipemanufacturer used this extruder to replace an older model in an existing extrusion line and was then immediately able to meet all requirements in terms of quality standards and output. Fr nkische is a family-owned company that was founded more than 100 years ago, and its core product line is corrugated pipes made of PVC, which serve as water management and drainage pipes, as well as cable conduits. While the cable conduit pipes range from DN 40 to DN 200" nominal width, the pipe manufacturer makes water management and drainage pipes for road construction, agricultural drainage, drainage of buildings, landscaping and construction of sports facilities, as well as sewerage systems, which reach up to 800mm in diameter.

Conical twin screw extruder conEX NG 65

Frank Beck, head of operations and supply chain building construction at Fr nkische, said: “The extruder is equipped with a screw optimised for the application. We are really enthusiastic about this high-precision job in terms of melt homogeneity and product quality.” For its corrugated pipe production, Fr nkische uses several extruders from battenfeld-cincinnati. The pipe manufacturer has already maintained a customer-supplier relationship based on mutual trust for more than 25 years.

New static balancing valve from Genebre Fluid control company Genebre has announced a new static balancing valve. The company, which has celebrated its 40 th anniversary this year, has introduced the new valve, Reference 3074, as part of its 2021 catalogue in the Genebre Hydro Sanitary Line.

Balancing valves are hydraulic devices that regulate and balance the fluid flow in heating and cooling installations with high precision. They are useful to provide a more uniform temperature distribution in equipment with many terminals such as hotels, hospitals, schools and so on. The 3074 valve is a balancing valve which means it has a single component device, adjustment functions and measures cold and hot fluids transiting inside closed and open systems. This means that it features micrometric adjusting of the transfer flow, an indicator of calibration reading of numerical value on the valve’s hand wheel, it has the possibility of

The 3074 valve is a balancing valve which means it has a single component device

verifying the flow in transit of the circuit by means of piezometric inputs and the possibility to block in a certain position. The static balancing valve can be installed in any vertical or horizontal

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TUBE PRODUCTS INTERNATIONAL January 2022

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