1/98 MagneW 3000
PLUS
Specification and Application Guide 17
Table 5—Summary of Installation Considerations, continued
Factor Consideration
Detector location in
piping (continued)
Straight pipe sections must be provided on the upstream and downstream sides of the detector
as shown.
23454
DOWNSTREAM SIDE
(D = Nominal diameter of detector)
90-degree elbow
UPSTREAM SIDE
(D = Nominal diameter of detector)
5D or greater
Reducer pipe (can be regarded
as a straight pipe section)
5D or greater
Sluice valve (full open)
5D or greater
Tee
5D or greater
Expansion pipe with cone angle 15 degrees
or more (if the cone angle is less than 15
degrees, can be regarded as a straight pipe
section)
5D or greater
Valve other than a sluice type
10D or greater
2D or greater (minimum 2D if drift current or the like is possible)
The process piping with flanges must be straight and centered. Below are examples of imprope
alignments.
23455
Tilted pipe
Off-centered
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