Type armored flameproof thermocouple, thermal resistance, explosion-proof
Test qualified by National Instrumentation explosion-proof safety supervision and inspection station and issued a certificate of explosion-proof series of products.
Its protective tube and measurement component can be quickly separated structure. can be non-stop repair, The various materials of protective tubes can meet the measurement needs for high pressure, high temperature and strong corrosive media measurement
It adopts armored measurement component which is tightly connected with the bottom of protective tube using spring compression. It has quick heat response and is anti-seismic, stable and reliable.
It adopts aluminum alloy anti-explosion junction box, equipped with products of BT1～5，ExdⅡCT1～6 anti-explosion degree, so it could be used in situations requiring different anti-explosion degrees.
1) Temperature and Tolerance
Type | Graduation | material | Measuring range ℃ | Grade and Tolerance |
Armored components | Protection tube | Ⅰ | Ⅱ |
Ni-Cr – Ni-Si | 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-52Alloy | 0～1200 |
Ni-Cr – Cu-Ni | E | 06Cr18Ni11Ti | 06Cr18Ni11 Ti | Single：0～650 Double support：0～550 |
Fe – Cu-Ni | J | Single：0～600 Double support：0～540 |
Cu – Cu-Ni | T | -200～350 | ±0.5 or±0.4%∣t∣ | ±1 or ±0.75%∣t∣ |
Pt Resistor | Pt100 | 06Cr18Ni11Ti | 06Cr18Ni11Ti | -200～420 | A | ±（0.15+0.002∣t∣） |
0～500 | B | ±（0.30+0.005∣t∣） |
3YC-52Alloy | 0～650 |
Cu Resistor | Cu50 or Cu100 | 06Cr18Ni11Ti | -50～100 | —— | ±（0.30+0.006∣t∣） |
2) fixation device and insertion depth
Fixed device form | Protection tube | Nominal pressure MPa | Insert depth Mm |
Type | End form |
Fixed thread taper pipe | Overall Thrilled Tube | cone | 30 | 150～1000 |
75～1000 |
Fixed flange taper pipe | Depending on flange form | 150～1000 |
75～1000 |
Fixed screw thread | Overall Thrilled Tube | Straight | 10 | 150～1000 |
φ16Welded tube | cone | 150～2000 |
Reduced form |
Fixed flange | Overall Thrilled Tube | Straight | Depending on flange form | 150～1000 |
φ16Welded tube | Straight | 150～2000 |
Reduced form |
Non fixing device Movable flange
| φ16Welded tube | Straight | Atmospheric pressure | 150～2000 |
Reduced form |
Note:
1, when the fixed-threaded tapered tube is equal to or below 250, can be used for medium which flow rate is 80m / s
2, the overall drilling tube insertion depth, within the allowable range, can be arbitrarily selected by the user.
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