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1 Introduction
1.4.2.8
Type TME 400 turbine meters have measuring ranges of at least 1:20 at atmospheric
pressure (see chapter 1.4.2.9 Measuring accuracy). At a higher pressure, the meas-
uring range can be expanded to 1:50. The measuring ranges are between 2.5 and
25,000 m
The turbine meters with nominal diameter of DN25 and DN40 can be used up to a
32
maximum of 16 bar. However, there may be restrictions for threaded connections that
are subsequently used.
1 – Pipe fitting DIN2950
2 – Gas pipe
Manual TME400-VMF · EN11 · January 22nd, 2024
Measuring ranges
3
/h (operating conditions), depending on meter size.
Figure 2: Threaded connection for DN25 and DN40
DN25 thread G 1 ½ ISO 228-1
DN40 thread G 2 ¼ ISO 228-1
DN25 / thread Rp 1 ISO 7-1
DN40 / thread Pp 1 ½ ISO 7-1
DN25 / thread R1 ISO 7-1
DN40 / thread R1 ½ ISO 7-1
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