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- ELECTRIC TRACED THERMOTECH TUBE® TYPE ET
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- Electric Traced ThermoTech Tube® Type ET
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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
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- 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 - Heating Cables
- BTV heating cable maintain temperature over 32℃. Process needs more higher temperature(over 85℃), XTV heating cable is recommended. You can find your Maximum continuous and intermittent temperature below chart.
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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
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Overview of SL and PL heating cable characteristics
Heating
cableService voltage Maximum continuous exposure temperature Maximum intermittent exposure temperature T-rating/
maximum sheath temperatureSL 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.
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Stainless steel Copper ASTM A269 ASTM B68 ASTM A213 ASTM B75 ASTM A249 ASTM B88 -
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.) -
CM TECH Tubing bundle options
Material
(Thickness)Size 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
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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
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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.
