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Electric Traced ThermoTech Tube® Type ET

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Electric Traced ThermoTech Tube® Type ET

Introduction

ThermoTech Tube® type ET is designed to freeze protection and low-temperature maintenance for gases, liquids or other viscous materials. With outdoor temperatures of -30℃, Electric traced Thermotech Tube® Type ET will maintain a process tube or gas at 40℉(4.4℃). . Type ET can maintain process tube temperatures up to 140℉(60℃~121℃), depend upon ambient conditions. Tubing bundles are all available both single and dual type tube and possible to fabricate in various size, material, O.D upon customer’s request. CM TECH using Raychem’s heating cable product. Allowable outer temperature is -30~38℃.

Typical applications

- Impulse lines : to flow transmitters, pressure transmitters, level transmitters, and pressure switches

- Sample lines : On-line analyzers

- Process lines : for steam supply, condensate collection, water purge, chemical feed, and air(vapor) line

Process tube maintain temperature (min.~max.) for ambient range of -30~38℃) at 120/240V
Tube O.D.	1/4	3/8	1/2
SINGLE	Min.~Max	Min.~Max	Min.~Max
SL 5Watt	19~52℃	16~51℃	14~50℃
SL 8Watt	32~58℃	29~57℃	27~56℃
PL 5Watt	31~92℃	26~88℃	21~84℃
PL 10Watt	63~110℃	56~105℃	51~101℃
PL 15Watt	84~126℃	78~120℃	71~116℃
PL 20Watt	111~151℃	103~145℃	96~139℃
DUAL	Min.~Max	Min.~Max	Min.~Max
SL 5Watt	18~52℃	14~50℃	12~49℃
SL 8Watt	32~58℃	28~56℃	24~55℃
PL 5Watt	29~91℃	22~85℃	16~80℃
PL 10Watt	61~109℃	52~102℃	44~96℃
PL 15Watt	83~124℃	73~116℃	64~110℃
PL 20Watt	109~149℃	97~140℃	87~132℃

* SL : Self-Regulating, PL : Power-Limiting

Overview of SL and PL heating cable characteristics
Heating cable	Service voltage	Maximum continuous exposure temperature	Maximum intermittent exposure temperature	T-rating/ maximum sheath temperature
SL all types	110/120V	65℃	85℃	T6 85℃
SL all types	208/277V	65℃	85℃	T6 85℃
PL 5,10watt	110/120V	121℃	215℃	T3 200℃
PL 15, 20Watt	110/120V	121℃	215℃	T2D 215℃
PL 5, 10,15Watt	208/277V	121℃	215℃	T3 200℃
PL 20Watt	208/277V	121℃	215℃	T2C 230℃

Heating cable power on(=maximum maintain temperature) For 1,000 hours intermittent (power on or off) Higher maximum sheath temperatures have been approved by other agencies

TUBE SPECIFICATION.

CM TECH’s standard tubing materials are 304/304L semi-seamless and 316/316L seamless stainless steel, type 1220 copper tube. In case of using other materials, available upon requested. Regarding Selection of Process tube and Steam tube material, CM TECH recommended that using same tube material for bundle. This prevent from twisting bundle tube by heat expansion. CM TECH recommended using same tube materials for bundle.

Common Tube Materials and Sizes

Basically, CM TECH’s standard tubing sizes are 1/4”, 3/8”, 1/2”, 3/4”. The most widely used material is 304/304L ASTM A269, and Copper type #122 DHP seamless ASTM B68 also available. In case of using other material, CM TECH can supply those materials within ASTM STANDARD. (See Technical Specification Chart.)

Stainless steel
ASTM A269
ASTM A213
ASTM A249

Copper
ASTM B68
ASTM B75
ASTM B88

Tubing bundle options
Material (Thickness)	Size
Material (Thickness)	1/4	3/8	1/2
304/304L
0.035	O	O	O
0.049	O	O	O
316/316L
0.035	O	O	O
0.049	O	O	O
Copper
0.030	O
0.032		O
0.049			O
PFA Teflon
0.030	O	O
0.060			O

Size & Bend Radius.
Tube O.D	Nominal Bundle O.D(in)	Minimum bend radius(in)	Run length(m)
1/4	1.5	7.0	250~300
3/8	1.6	7.0	250~300
1/2	1.8	8.0	250~300
3/4	2.0	10.0	250~300

WORKING PRESSURE @ 200℃ (Unit:PSI)
TUBE WALL THICKNESS
Tube O.D	304 welded stainless steel		316 seamless stainless steel		#1220 copper
Th’k	0.035	0.049	0.035	0.049	0.035	0.049
1/4	4222	6164	4967	7252
3/8	2740	3942	3224	4637	556	861
1/2	2154	3080	2543	3624	410	600
3/4	1416	2010	1666	2565		390

Insulation

CM TECH using Non-hygroscopic glassfiber insulation and Aerogel for tubing buldles. Specially using Aerogel insulation for high temperature process over 400℃. For more specific insulaton specification, see 3. Insulation/jacket specification section.

Outer FR-PVC jacket

Frame-resistant PVC(FR-PVC) Jacket protects the tubing against corrosive atmospheres, water, oils, acids, alkalies and most chemicals. Min./Max. allowable exposure temperature is -50~102℃, allowable surface temperature is 82℃.

Accessories

CM-ESS-0 : Jacket Patch Kit

CM-ESH-01 : Entry Seal Kit

CM ESS-02/03/04 : Heat Shrinkable Boots

JBS-100-A : Power connection for one heating cable in non-hazardous and hazardous locations.

S-150 : Splice kit for heating cables in non-hazardous and hazardous locations.

E-100-A : End seal for heating cable in non-hazardous and hazardous locations.

*For more information, See the Accessories section.

Testing

Every CM TECH’s tubing products are pressure tested before shipment. If required, 3rd party test or inspection is also possible and which include DNV, ABS & LLOYD’S REGISTER standard. For more information, ask factory’s Q/A manager. (Reference : CM-B-301 Inspection and test plan)

NOTE

It is necessary to seal the ends that prevent from contamination by moisture and(or) corrosive liquids. CM TECH supplies Sealing tools for end works. For more information, See the accessories pages.