Model 442 Armored Explosion-proof type Thermocouples and RTDs
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  • Model 442 Armored Explosion-proof type Thermocouples and RTDs
  • Model 442 Armored Explosion-proof type Thermocouples and RTDs
  • Model 442 Armored Explosion-proof type Thermocouples and RTDs
  • Model 442 Armored Explosion-proof type Thermocouples and RTDs
  • Technical Specifications
Technical Parameters
1) Temperature and Tolerance
Model Type Material Measuring Range(℃) Accuracy Class and Tolerance
Armored Element Protection Tube Class I Class II
NiCr-NiSi K 06Cr18Ni11Ti 06Cr18Ni11Ti -40~800 ±1.5 or
±0.4%|t|
±2.5 or±0.75%|t
GH30 Alloy 1Cr25Ni20 0~1000
GH30 Alloy 0~1100
3YC-52 Alloy 0~1200
NiCr-CuNi E 06Cr18Ni11Ti 06Cr18Ni11Ti Single:0~650
Double:0~550
Fe-CuNi J Single:0~600
Double:0~540
Cu-CuNi T -200~350 ±0.5 or
±0.4%|t
±1  or±0.75%|t|
Pt Resistance Pt100 06Cr18Ni11Ti 06Cr18Ni11Ti -200~420 A ±(0.15+0.002|t|)
0~500 B ±(0.30+0.005|t|)
3YC-52 Alloy 0~650
Cu Resistance Cu50 or
Cu100
06Cr18Ni11Ti -50~100 一 ±(0.30+0.006|t|)

2) Fixing Device and Insertion Depth
Fixing Device Protection Tube Nominal Pressure
(MPa)
Insertion Depth(mm)
Type End Form
Fixed Threaded
Tapered Tube
Solid-Drilled
Tube
Tapered 30  150~1000
Fixed Flanged Tapered
Tube
Depends on flange
type
75~1500
Fixed Threaded Solid-Drilled
Tube
Straight 10  150~1000
φ16 Welded
Tube
Straight
Reduced
150~2000
Fixed Flanged Solid-Drilled
Tube
Straight Depends on flange
type
150~1000
φ16 Welded
Tube
Straight
Reduced
150~2000
Floating Flange(No
Fixing)
φ16 Welded
Tube
Straight/Reduced Atmospheric pressure 150~2000
Note 1: Fixed threaded tapered tube ≤250 mm can be used for media with flow velocity up to 80 m/s.
Note 2: Insertion depth of integrated drilled tube can be freely selected within allowable range.
About Us
Yueqing Huadong Instrument And Meter Factory
Huadong Instrument and Meter Factory was established in 1986 and is located at the south foot of Yandang Mountain, a famous national tourist scenic spot, beside National Highway 104, 60 kilometers away from Wenzhou Airport, 3 minutes from the railway station, with convenient transportation and communication.
After nearly 40 years of accumulation and development, with the joint efforts of all employees, our factory has become the only supplier for the development, production, and sales of industrial automation equipment in the national instrument industry, with an annual production capacity of 150 sets of tooling equipment in various industries, and the production of "HY" series gun drilling (deep drilling) machine, polishing machine, core exposing machine, cutting straightening machine, locking machine, and multi-function argon arc welding machine, filling several industry gaps and greatly improving the level of industry automation.
Our factory mainly produces various series and specifications of temperature sensors, armored thermocouple cables, hot runner mold electric heaters, armored heating cables, thermocouple compensation wires (copper coating), special equipment for the temperature instrument industry, and also provides a variety of temperature measuring elements, installation casings, and accessories.
Our factory has a strong team of technical experts and well-trained employees, with sophisticated production equipment, advanced technology, and complete testing equipment. All products are produced according to international standards, with stable and reliable performance. Our products are sold to large and medium-sized enterprises in more than 20 provinces and cities across the country, and are exported to Europe, the Middle East, and Southeast Asian countries, with a good corporate image and reputation.
During the past decades, we have based on "pioneering and innovative, pragmatic and passionate work", adhered to the "integrity and win-win" business philosophy, to challenge themselves and innovate, take the road of specialization, independent intellectual property rights, access to nearly 30 China invention patents, utility model patent certificate of nearly, and enjoy the CE, ISO19001: 2015 international quality management system certification.
Huadong upholds "The customer is supreme, quality first" and provides better products to the world and the industry, to improve our quality, to improve our services, and to develop with our customers and industry. Our target is to create a united, cooperative, mutually beneficial enterprise and establish a bright future!
Certificate of Honor
  • Global Manufacturer Certificate
  • CE
  • ISO 9001
  • CE
  • EU
  • Invention Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Utility Model Patent
  • Explosion-proof Certification
  • Explosion-proof Certification
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