4210 Flow Meter
Section 4 Optional Equipment
4-24
4.12 Installation of
Parameter Probes in
Round Pipes
4.12.1 Spring Rings (15" and
Under)
For circular pipes ranging in diameter from 6 in.(15.2 cm) up to
15 in.(38.1 cm), spring stainless steel mounting rings are
available for mounting the probe in the flow stream. First, you
mount the probe on the appropriate carrier. Then you snap the
carrier into the mounting tabs on the ring, making sure that the
tabs are fully engaged in the slots. The mounting ring is designed
to be compressed, slipped inside the pipe, and then allowed to
spring out to contact the inside diameter of the pipe. The
inherent outward spring tension of the ring firmly secures it in
place.
A typical self-expanding mounting ring (with a submerged probe
mounted on it) is shown in Figure 4-8. These mounting rings are
available for use in pipes with inside diameters of 6 in.(15.2 cm),
8 in.(20.3 cm), 10 in.(25.4 cm), 12 in.(30.5 cm), and 15in.(38.1
cm).
Figure 4-8 Spring Ring (15” and Under)
4.12.2 Pipes Larger Than 15” For pipes 18 inches in diameter and larger, Isco offers the
adjustable Universal Mounting Ring. This device consists of
two or more metal strips that lock together with tabs to form a
single assembly.
There is a base section where the probes are mounted, two or
more extension sections (usually), and a scissors section at the
top that expands the entire assembly and tightens it inside the
pipe. The scissors section contains a long screw, which, as it is
tightened, increases the length of the section.
...outward force of ring against pipe wall holds
ring in place inside pipe.
Compress ring into gap to install in pipe, then...