Dwyer PUX - Manual (Page 31)

7 - 2
(5) For a horizontal pipe, mount the detector within
±
45
°
of the horizontal plane.
For a vertical pipe, the detector can be mounted at any position on the outer circumference.
(6) Avoid mounting the detector near a deformation, flange or welded part on the pipe.
Space required for mounting detector
(3) Pipe is always filled with fluid. Neither air bubbles nor foreign materials are contained in the fluid.
(4) There is an ample maintenance space around the pipe to which the detector is to be mounted (see
figure below).
Note 1) Secure an adequate space for allowing a person to stand and work on both sides of a pipe.
Note 2) D indicates the inside diameter of a pipe.
Horizontal plane
Pipe
Deposits of
sludge
Air bubbles
45
°
45
°
Welded part Welded part Flange or welded
D + 1200 or more 600 or more D 600 or more
200
or more
200
or more
Note 2000 or more
D : Pipe diameter
BULLETIN F-68