CM-ESS-Heat shrinkable boots are a series of heat-shrinkable end seal boots made of a thermally stabilized, modified polyolefin.
They are designed to provide a weatherproof seal at the end of tubing bundles. These boots may be used for process temperatures up to 204℃
- Installation
Cut back the bundle leaving the desired length of tubing exposed. This can be as short as 13”(160mm).
Spread the tubes apart enough to fit into the legs on the end of the boot. We suggest that you bend the process tubes to the correct instrument connection centers before installing the boot. This will result in a more compact installation.
Slip the boot over the end of the bundle with one tube, tracer or wire bundle in each leg until the bundle seats at the bottom of the boot. Be careful not to nick or cut the boot. Nicks and cuts will cause the boot to split during heat shrinking.
Use a heat gun to shrink the boot over the bundle, tubes and tracer, Move the heat source back and forth over the boot applying heat evenly. Once the boot has assumed the shape of the bundle and the tubes, stop applying heat. Further heating will not make the boot shrink more tightly.
If required, the boot leg should be pinched with pliers while hot and held till cool to reduce the leg diameter. Cut tubing and tracer to length required for instrument and Tracer connections.
- CAUTION
Body dia.
Min/Max
Leg dia.
Min/Max
1
0.375”/1.30”
(9mm/33mm)
2
0.95”/1.90”
(24mm/48mm)
0.30”/0.75”
(8mm/19mm)
3
0.45”/1.60”
(11mm/40mm)
0.15”/0.55”
(4mm/14mm)
4
1.50”/3.00”
(38mm/75mm)
0.50”/1.50”
12mm/38mm
5
1.40”/2.40”
(36mm/60mm)
0.50”/1.13”
12mm/28mm
6
0.90”/1.70”
(22mm/43mm)
0.30”/0.80”
(8mm/20mm)
7
2.00”/3.20”
(50mm/80mm)
0.75”/1.40”
19mm/35mm
8
1.40”/2.65”
(36mm/67mm)
0.43”/1.20”
11mm/30mm
9
1.45”/2.40”
(37mm/61mm)
0.35”/0.80”
(9mm/20mm)
When applying a heat shrinkable boot to a product with Teflon or plastic tubing, take care not to overheat the tubing.
Combining Tubes & Messenger Wires in a Common Leg
At times it may be necessary to route multiple tubes or messenger wires through a common leg in a heat shrink boot. This can be done if you seal any voids left in the leg after it has been heat shrunk to its minimum size. Use silicone RTV sealant to fill voids left between multiple tubes or messenger wires.
Force the sealant into the voids by inserting the tapered end of the tube into the void and squeezing in silicone until it fills the void and starts to overflow.
Do not combine heater cable with any other component. Each heater cable must be routed through its own leg in a heat shrink boot.
