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Premium K Type Thermocouple Extension Wire - Fiberglass Braided 20 AWG
- Product Details
Product Overview
Our Thermocouple wire is a precision-engineered temperature measurement solution designed for extreme industrial environments. Manufactured to international standards (IEC 60584, ASTM E230), these wires provide accurate and reliable temperature readings from -200°C to +1200°C depending on type. The oxygen-free copper conductors and specialized insulation ensure long-term stability in harsh conditions.
Key Features & Benefits
Superior Construction
Multi-strand conductors (7x32 or 19x34 configurations) for maximum flexibility
Dual-layer insulation (fiberglass + PTFE) for 600V dielectric strength
Oxidation-resistant alloys (ANSI MC96.1 compliant)
EMI shielding options available (foil + braid)
Performance Specifications
Parameter | Type K | Type J | Type T | Type N |
|---|---|---|---|---|
Temperature Range | -200°C to 1260°C | 0°C to 760°C | -200°C to 370°C | 0°C to 1260°C |
Conductor Material | NiCr-NiAl | Fe-CuNi | Cu-CuNi | NiCrSi-NiSi |
Standard Accuracy | ±2.2°C | ±2.2°C | ±1.0°C | ±2.2°C |
Insulation Colo | Green/White | Black/White | Blue/White | Orange/White |
Technical Specifications
Construction Details
Conductor: Class 1 oxygen-free copper (99.99% purity)
Insulation:
Inner layer: PTFE (0.3mm thickness)
Outer layer: Fiberglass braid (600°C continuous rating)
Shielding: Optional 85% coverage tinned copper braid
Overall Diameter: 3.2mm ±0.1mm (for 20 AWG)
Electrical Characteristics
Resistance: ≤0.8Ω/m at 20°C
Dielectric Strength: 1000V AC for 1 minute
Capacitance: 120pF/m max
Scientific Principles
Thermocouples operate based on the Seebeck Effect:
Junction Formation: When two dissimilar metals join, they create a temperature-dependent voltage
Thermoelectric Output: Microvolts generated are proportional to temperature difference (40µV/°C for Type K)
Reference Compensation: Cold junction compensation required for absolute measurements
Law of Intermediate Metals: Allows connection points without affecting accuracy
Applications
Industrial Process Control
Steel manufacturing (continuous casting monitoring)
Glass production (annealing lehr temperatures)
Petrochemical (cracker furnace profiling)
Energy Generation
Gas turbine exhaust monitoring
Nuclear reactor core temperature arrays
Geothermal well logging
Laboratory & Research
Cryogenic experiment monitoring
Material science thermal analysis
Vacuum furnace instrumentation
Commercial Equipment
Commercial oven safety circuits
Industrial dryer control systems
Food processing sterilization validation
Competitive Advantages
Performance Benefits
50% faster response time than sheathed thermocouples
0.1% accuracy with special tolerance options
10-year lifespan in continuous 500°C service
Flex memory-free for repeated bending applications
Quality Assurance
100% continuity testing
Batch-specific calibration reports
Material certification to EN 10204 3.1
RoHS & REACH compliance documentation
Customization Options
Custom color coding
UV-resistant outer jackets
Armored versions for mining applications
Low-noise versions for laboratory use
Custom length marking every meter
FAQ Section
Q: What is your contact information?
A: Mobile/whatsapp/skype/wechat:+8619906119641
Q: What is the maximum bending radius for installation?
A: Minimum 10x cable diameter for dynamic applications, 5x for fixed installations.
Q: Can different thermocouple types be combined in one cable?
A: Yes, we offer duplex and multiplex configurations with up to 6 pairs.
Q: How does your wire compare to mineral insulated (MI) cable?
A: Our wire offers better flexibility and lower cost, while MI cables have higher temperature ratings.
Q: What termination methods do you recommend?
A: Silver soldering for high temperatures, crimping for field service, welding for permanent installations.
Q: Is the fiberglass insulation itchy to handle?
A: Our special coating reduces fiber shedding by 90% compared to standard fiberglass.
Q: Can you supply wire with continuous length markings?
A: Yes, we can print meter marks every 1m with laser etching (additional cost applies).
Q: What is your lead time for custom colored wire?
A: Standard colors ship in 2 weeks, custom colors require 4 weeks minimum.
Q: How should I store unused thermocouple wire?
A: Keep in original packaging at 10-30°C, <60% humidity, away from corrosive gases.
Q: Do you offer flame-retardant versions?
A: Yes, our FR-3000 series meets IEC 60332-1 vertical flame test standards.
Q: Can you supply wire on non-standard spool sizes?
A: We provide 250mm, 300mm, and 400mm diameter spools with custom flange options.
Why Choose Our Thermocouple Wire?
35 years of specialty wire manufacturing
In-house calibration laboratory (ISO 17025 accredited)
Just-in-time production with 98% on-time delivery
Technical support from PhD materials engineers
Global logistics network with bonded warehouse options
Ordering Information
Contact our technical sales team for:
Project-specific wire formulations
UL/CSA certification packages
Cut-to-length services
Emergency production slots
Volume discount structures
Request samples or a quotation today to experience measurement reliability engineered to perfection!
