Production • Processing • Handling
Piping solutions with using a flared flange system
Thomas Rüdiger and Frank Wiele outline the updates to the expansion of a flared flange system and the introduction of a piping solution service.
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Fig. 1. Parker Hannifin’s Parflange F37 flared flanges.
hen Parker Hannifin’s Parflange F37 flared flange programme was introduced in 2008, an alternative to welded high- pressure tube fittings for larger
outside diameters up to 140 mm was created. Now, after a good two years, this product programme is being expanded.
Te range has been broadened not only with additional flange sizes but also with new system components such as T and L flanges, bends, welding adaptors and non-return valves. A new product line for low pressures has also been introduced. New, too, is the global introduction of the Piping Solution Service, which in particular covers the prefabrication of complete piping lines configured specifically to customers’ requirements, and thereby creates for the end- customer new, flexible possibilities regarding piping design and assembly. Parker offers the Parflange F37 flaring system for tubes up to 273 mm outside diameter, wall thicknesses up to 9mm and pressures up to 420 bar – a system which in the meantime has been proved hundreds of thousands of times over in
the marketplace. Te F37 retaining ring system is available for connections where pre-flared pipework or orbital flaring on site are not possible or very difficult. For this kind of connection, a retaining ring is fitted into a groove in the tube end to be machined and the flange pressed against this retaining ring during assembly, whereby solid form connections are achieved. When fitted on the sealing side with Bonded Seal or Seal Carrier types, this version also guarantees leak-free pipe connections, in particular for thick-walled pipelines.
Low-pressure system Based on standard SAE and ISO flange connectors, the pipe connector programme for SAE 3000/ ISO 6162-1 was designed in the first instance for pressures of only 210 to 350 bar, and respectively for SAE 6000/ISO 6162-2 up to 420 bar. In particular, this satisfies the requirements of the offshore, shipbuilding and heavy machinery industries. Te new additional F37 SAE 1000 psi system low pressure programme is tailored for applications up to 70 bar. For example, cooling circuits and tank and return lines can be rapidly constructed with them, saving cost and weight, and staying leak-proof. Te flange hole pattern corresponds to that of the SAE3000 series and can, wherever the pressure conditions allow, be directly screwed to the SAE 3000 connection system. Conceived as standard parts for pipe sizes from 1½-in to 60-in (F37) and 1½-in to 10-in (retaining ring) at a permissible 50–70 bar, with the new low- pressure range 10 distinct pipe sizes with different connection components are available from stock. Te variety of components is enormous: pipe to pipe, pipe to port connections, reducers, bends, T and L flanges – the new Parker low-pressure flange connector system is ideally equipped for the solution of complex piping designs. It goes without saying that all the pressure series of the Parflange F37 1000 psi system are approved by recognised accreditation bodies such as Det Norske Veritas (DNV) and the American Bureau of Shipping (ABS).
Te Parflange F37 SAE 3000 programme
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