Aerospace series. Flange couplings. Swivel flange with 3 fastening holes, in nickel alloy. Inch seriesWhat is BS EN 4802 3 holes aerospace swivel about? The flange coupling is a driving coupling placed between rotating shafts. These shafts comprise a flange fixed on each shaft end, and are held and bolted together using a ring of bolts that complete the drive. These couplings are designed to seal two tube ends in a flush manner. BS EN 4802 specifies the characteristics of swivel flanges, 3 holes, for flange couplings in nickel alloy for inch series

In these phases

NOTE 1 In practice

are suitable for pressures up to approximately 200 bar

Contents of BS EN 845-1:

PD CEN/TR 14560 discusses protective clothing

It is applicable for all large scale processes which offer deacidification of acid documents made of printed or hand-written paper

6 Verification of requirements

and defines a set of common approaches

by using a different injection volume

protection system

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Smoke extraction ducts must be capable of at least resisting the anticipated smoke temperatures generated during the development of a fire