Pre-Insulated Tubing Series 4200
Dekoron® Unitherm™ Series 4200 pre-insulated
tubing is a thermally insulated transport line suitable
for steam, gas, or liquid transport. Each line is
composed of the following elements:

Process Tube

High-efficiency aerogels thermal
insulation

Weather protective, lead-free, low
temperature PVC outer jacket
3
2
The energy-efficient design provides for nominal
jacket surface temperatures of 140°F (60°C) or lower
at 80°F (26°C) ambient conditions, while transporting
400°F (204°C) saturated steam.
Additional features of this product are:

Compact design

Low heat loss

Consistent, engineered thermal
1
1 - Process Tube
Standard Tubing Materials:
 316/316L Stainless Steel
 #122DHP Copper
 PFA Fluoropolymer
2 - High Efficiency Aerogels Insulation
3 - Outer Weather Protective Jacket
properties

Light, durable, easy to handle

Zero maintenance

East to install

Cost savings over field fabrication
The high-efficiency insulation:

30% smaller diameter than traditional
thermal insulation for better fill

Tighter bend radius

Insulation repels water

30% lighter weight
 Lead-Free FRPVC
 Halogen-Free FRTPU
 Low Temperature FRTPE
Stock items in this series:
4200-21A30
4200-20A35
4200-31A32
4200-30A35
4200-41A35
4200-40A35
4200-41A49
4200-47A35
Pre-insulated Tubing Accessories:
Seal-Tite End Boots
Seal Patch Kits
Uniseal Cable Entry
Seals
Easy End Sealant
Unicut™ Jacket Tool
Pre-Insulated Tubing Series 4200
Product Specifications
Tube
OD
Standard Wall
Thickness***
Material *
ASTM
Working Press
Nom Heat
@ 400°F
Loss @ 400°F
Nom Bundle
OD
Nom. Wght.
Lbs/ft
Minimum Bend
Radius*****
3/8”
0.032”
#122 Copper
B68-75
450 PSI
31 BTU/HR-FT
0.95”
0.3
5”
1/2”
0.035”
#122 Copper
B68-75
360 PSI
37 BTU/HR-FT
1.05”
0.4
6”
1/2”
0.049”
#122 Copper
B68-75
530 PSI
37 BTU/HR-FT
1.05”
0.5
6”
3/4”
0.049”
#122 Copper
B68-75
340 PSI
48 BTU/HR-FT
1.20”
0.7
7”
1/4”
0.035”
316/316L SS
A-269 /
A213 EAW
5170 PSI**
25 BTU/HR-FT
0.75”
0.3
4”
3/8”
0.035”
316/316L SS
A-269 /
A213 EAW
3310 PSI**
31 BTU/HR-FT
0.95”
0.3
5”
1/2”
0.035”
316/316L SS
A-269 /
A213 EAW
2430 PSI**
37 BTU/HR-FT
1.05”
0.4
6”
1/2”
0.049”
316/316L SS
A-269 /
A213 EAW
2800 PSI**
37 BTU/HR-FT
1.05”
0.5
6”
3/4”
0.049”
316/316L SS
A-269 /
A213 EAW
2260 PSI**
48 BTU/HR-FT
1.20”
0.6
7”
Notes:
*Copper tubes meet mechanical and chemical requirements of ASTM B-88 except for marking. Tubing is sized on OD not Trade Size.
**Values given for welded tubing, seamless tubing is slightly higher. Contact Dekoron Unitherm for specific working pressures.
***Other wall thickness are available, contact Dekoron Unitherm
****Common tubing materials shown. Contact Dekoron Unitherm for other available materials
*****Minimum Bend Radius shown for FRPVC jacket. Contact Dekoron Unitherm for specifications on alternate jacket materials.
Heat Loss vs. Ambient for Various Steam Pressures
Product Ratings
Maximum Operating
Temperature
400°F (204°C)
Standard Outer Jacket
105°C Rated Lead-Free
FRPVC
Alternate Outer Jackets
125°C Rated FR-TPE
Halogen-Free FR-TPU
Minimum Installation
Temperature
-25°F (-32°C) for FRPVC
-50°F (-45°C) for FR-TPE
-45°F (-43°C) for FT-TPU
Outer Jacket Surface
Temperature
Less than 140°F (60°C)
when operating at 400°F
(204°C) tube temperature
in 100°F (38°C) ambient.
Heat Loss Multipliers
Tubing OD
1/4”
3/8”
1/2”
3/4”
1.0
1.3
1.5
2.0
Contact Dekoron Unitherm for details on
products for your specific application.

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