Production • Processing • Handling
Fig. 2. The new 272-page Parflange catalogue
covers the pressure range from 210 to 350 bar. Tis product line has undergone a significant expansion and now starts at ½-in, followed by ¾-in pipes, instead of as previously only at the 1-in pipe. With the individual components, too, Parker has been able to again significantly extend the variety of types. An additional flange type with integrated thread renders the conventional nut superfluous and makes assembly even easier. New in the range is the Pipe Seal Carrier (PSC), which makes machining the face side of the pipe unnecessary. But piping systems should not always be changed
over completely from the conventional welding solution to the flange system. Here, too, Parker has a recipe in the new catalogue – welding adaptors in various dimensions are now available with additional sizes. Tere is also a range extension to the valves. Non-return valves are the newcomers here. In a comparable way, the SAE 6000 series of the F37 Parflange programme has been extended. Permitted up to 420 bar, for this series too there are many more sizes/components than previously. Here, too, special mention should be made of more flange types, such as, for example, jump-size flanges with and without thread. Important innovations have also been made in the ISO 6164 system for pressures from 350 to 400 bar. Te retaining ring system is now approved
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for up to 10-in pipe/flange combinations. Te appropriate pipe with the proper pipe quality is of course an integral part of this comprehensive product programme. In this respect Parker can fall back on its experience over the years in the pipe market and offers an extensive pipe programme in the new F37 catalogue.
Te enormous outlay of the time and costs of
welding, and the given safety risks associated with, for example, faulty welding, careless X-rays or ultrasound testing, militate in favour of screwed connectors. Compact, weld-free lines with the possibility of using jump sizes open up for both machine and equipment builders an enormous degree of design freedom. Te Parflange F37 system connects pipes together with absolute positive locking. Neither expensive tests nor welding certificates
are required for the assembly of Parflange F37 connections. A calculation programme obtainable from Parker makes clear at a glance the economic benefits of this connection system; based on the number of welded connections per unit and per year, and also the labour cost per hour, it gives the time and cost savings that can be achieved with the Parflange F37 system. Installation comparisons for welded lines show that - depending on the number of weldseams there
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