Thermon SafeTrace Steam Tracers - Manual (Page 4)

SafeTrace
TM
Steam Tracers
Installation on Flanges and Elbows . . .
1. Install SafeTrace in accordance with Illustrations D and E
below. Secure SafeTrace to process piping using FT-1H at-
tachment tape as described on page 2.
2. A 300 mm diameter expansion loop must be provided at
18 to 30 m intervals for long straight piping runs. Where
possible, loops on horizontal runs should be placed on a
horizontal plane to avoid trapping water during shutdown
periods.
3. SafeTrace tubing must maintain contact with the flange
when bending around pipe flanges. Tubing should be
placed on a horizontal plane where possible. For additional
heat at flanges, SafeTrace may be looped 360° around the
pipe on each side of and adjacent to the flange.
4. SafeTrace tubing must be bent so there is no strain on the
fitting after the tubing is installed. The cross-sectional area
of SafeTrace should not be flattened, kinked or wrinkled.
Use a properly sized conduit bender or mechanical tubing
Notes . . .
1. Make bends with a mechanical tubing bender. Other types of benders can also be
used if care is taken to prevent deforming or flattening of the tube.
2. The bending radius for each SafeTrace type is based on the outside diameter of the
safety yellow jacket.
Illustration D: Expansion Loop and Elbow Detail
Illustration E: Pipe Flange Detail
bender to assure constant radius bends where possible.
Refer to the suggested recommendations from the manu-
facturer supplying the tubing bender. Generally a radius of
four to five times the tube diameter is recommended. Re-
fer to Table 3 for the minimum acceptable bending radius
for each SafeTrace type.
Table 3: SafeTrace Bending Allowance 1
3
Expansion Loop
FT-1H Attachment Tape
(Typical)
Flange
Tubing Connection (Op-
tional)
PF-1B Attachment Tape
(Typical)
Process Piping
Process Piping
FT-1H Attachment Tape
(Typical)
Process Piping
Flange
Tubing Connection (Op-
tional)
FT-1H Attachment Tape
(Typical)
Process Piping
Optional outside to inside
tracer on elbow
SafeTrace Installed on Flange SafeTrace Looped 360° Around Flange
Catalog
Number
Tube Dia. O.D.
in (mm)
SafeTrace O.D.
in (mm)
Min. Bend Radius 2
mm
DLS-IT 3/8 (10) 1 (25) 100
SLS-IT 3/8 (10) 3/4 (19) 80
BTS 3/8 (10) 1/2 (12) 50
BTS 1/2 (12) 5/8 (16) 60