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No fixed device for explosion-proof thermocouples
- Product Description
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No fixed device for explosion-proof thermocouples
1. Overview of explosion-proof thermocouples without fixed devices
It uses the principle of gap explosion-proof to design junction boxes and other components with sufficient strength, sealing all components that may generate sparks, arcs, or dangerous temperatures inside the junction box cavity. When an explosion occurs inside the cavity, the gap between the joint surfaces can extinguish and cool the flame, preventing the flame and temperature from passing outside the chamber, thus providing explosion protection. It can directly measure the temperature of liquids, vapors, and gases in liquids, vapors, and gases within the 0°C~1300°C range for explosives such as hydrocarbons at the production site, as well as the surface temperature of solids.
2. Application of fixed threaded cone thermocouples
It is usually used in conjunction with display instruments, recorders, electronic computing, and similar devices. Directly measures the surface temperature of liquids, vapors, gases, and solids in the 0°C~1300°C range for explosives such as hydrocarbons at the production site. This series of instruments features multiple explosion-proof forms and excellent explosion-proof performance; Spring-type temperature sensing elements with excellent vibration resistance; Wide temperature measurement range; High mechanical strength and good pressure resistance; Instrument performance is stable and reliable.
3. Working principle of explosion-proof thermocouplesExplosion-proof thermocouples use the principle of gap explosion-proof protection, designing junction boxes and other components with sufficient strength. All components that may generate sparks, arcs, or dangerous temperatures are sealed inside the junction box cavity. When an explosion occurs inside the cavity, the gap between the joint surfaces can extinguish and cool the flame, preventing the flame and temperature from passing outside the chamber, thus providing explosion protection.
4. Non-fixed explosion-proof thermocouple selection table
Product models
Degree number
Temperature range: °C
Thermal response time
Protective tube materials
Specifications (mm)
d
L
WRM-140
WRM2-140
N
0～800
<90S
1Cr18Ni9Ti
φ16
150
200
250
300
400
500
750
1000
1500
2000
0～1000
0Cr25Ni20
WRM-140G
WRM2-140G
0～800
<24S
1Cr18Ni9Ti
0～1000
0Cr25Ni20
WRN-140
WRN2-140
K
0～800
<90S
1Cr18Ni9Ti
0～1000
0Cr25Ni20
WRN-140G
WRN2-140G
0～800
<24S
1Cr18Ni9Ti
0～1000
0Cr25Ni20
WRE-140
WRE2-140
E
0～700
<90S
1Cr18Ni9Ti
WRE-140G
WRE2-140G
<24S
WRC-140
WRC2-140
T
0～350
<90S
1Cr18Ni9Ti
WRC-140G
WRC2-140G
<24S
WRF-140
WRF2-140
J
0～600
<90S
1Cr18Ni9Ti
WRF-140G
WRF2-140G
<24S
(1) Thermocouple Class I and Grade A RTDs must be ordered according to agreement;
(2) Temperature measurement range and protective tube material not specified: The protective tube material is uniformly regarded as 1Cr18Ni9Ti;
(3) Other relevant technical parameter requirements can be ordered according to user agreements; Such as length, connection method, single or double pieces, etc
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