Honeywell MagneW 3000 Plus Application Manual page 23

Table 5—Summary of Installation Considerations, continued
Factor
Detector location in
piping (continued)
1/98
Straight pipe sections must be provided on the upstream and downstream sides of the detector
as shown.
90-degree elbow
5D or greater
Sluice valve (full open)
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
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 improper
alignments.
Tilted pipe
MagneW 3000 PLUS Specification and Application Guide
Consideration
UPSTREAM SIDE
(D = Nominal diameter of detector)
Reducer pipe (can be regarded
as a straight pipe section)
Tee
Valve other than a sluice type
DOWNSTREAM SIDE
(D = Nominal diameter of detector)
5D or greater
5D or greater
10D or greater
23454
Off-centered
23455
17