Type keywords to search pages, products, standards and articles
The thermowell is used together with two-section thermocouples (RTDs) and bimetallic thermometers to protect them during normal operation, and can also be used in high-pressure, high-flow-velocity service. All products are designed in accordance with IEC international standards; blind-hole machining withstands high pressure, and they are manufactured and installed together with the equipment. Different pressure ratings meet different requirements.
Tel: 0512-57892201 Mobile: 13451695112
| Code Segment | Meaning & Options | Value in This Example |
|---|---|---|
| TH | Thermowell (Series Code) | TH |
| 02 | Connection Type (01:Threaded connection 02:Flanged connection 03:Welded type) | 02 Flanged connection |
| A | Serial No. (Shape Code) (01 series A–V, 02 series A–H, 03 series A–K, see the “Dimensions” table for the outline and size of each serial no.) | A |
| B | Thermowell Material (Unmarked: 1Cr18Ni9Ti A: 304 B: 316 C: 316L D: Other) | B 316 |
○Nominal pressure
Generally refers to the static external pressure that the protection tube can withstand at room temperature without rupture. The permissible working pressure depends not only on the protection tube material, diameter and wall thickness, but also on its structure, installation method, immersion depth and the flow velocity and type of the measured medium.
○ Hydrostatic test
When pressure resistance and leak testing of the protection tube are required, the tube shall be tested. The test pressure is 1.5 times the nominal pressure of the protection tube.
○ X-ray flaw detection test
When inspection of wall thickness, eccentricity and other items is required, the inspection shall be carried out as specified by the user.
| Model | N | E | D | SW | U (Insertion Length mm) | L (Length mm) |
|---|---|---|---|---|---|---|
| TH01A | M20X1.5,NPT1/2 | NPT1 | Φ25.4 | 34 | 60,110,160,210,260,360 | 150,200,250,300,400,500 |
| TH01B | M20X1.5,NPT1/2 | NPT3/4 | Φ22.2 | 34 | 60,110,160,210,260,360 | 150,200,250,300,400,500 |
| TH01C | M20X1.5,NPT1/2 | NPT1 | Φ25.4 | 34 | 160,210,260,360,460,560 | 200,250,300,400,500,600 |
| TH01D | M20X1.5,NPT1/2 | NPT3/4 | Φ22.2 | 34 | 160,210,260,360,460,560 | 200,250,300,400,500,600 |
| TH01E | M20X1.5,NPT1/2 | NPT1 | – | 34 | 60,85,110,160,210,260,360 | 100,125,150,200,250,300,400 |
| TH01F | M20X1.5,NPT1/2 | NPT3/4 | – | 34 | 60,85,110,160,210,260,360 | 100,125,150,200,250,300,400 |
| TH01G | M20X1.5,NPT1/2 | NPT1 | – | 34 | 60,110,160,210,260,360 | 150,200,250,300,400,500 |
| TH01H | M20X1.5,NPT1/2 | NPT3/4 | – | 34 | 60,110,160,210,260,360 | 150,200,250,300,400,500 |
| TH01J | M20X1.5,NPT1/2 | NPT1 | Φ28 | 34 | 60,85,110,160,210,260,360 | 100,125,150,200,250,300,400 |
| TH01K | M20X1.5,NPT1/2 | NPT3/4 | Φ22 | 34 | 60,85,110,160,210,260,360 | 100,125,150,200,250,300,400 |
| TH01L | M20X1.5,NPT1/2 | NPT1 | Φ22.2 | 34 | 110,160,210,260,360,460,560 | 150,200,250,300,400,500,600 |
| TH01M | M20X1.5,NPT1/2 | NPT3/4 | Φ19 | 34 | 110,160,210,260,360,460,560 | 150,200,250,300,400,500,600 |
| TH01N | M20X1.5,NPT1/2 | NPT1 | Φ28 | 34 | 60,85,110,160,210,260,360 | 150,200,250,300,400,500 |
| TH01P | M20X1.5,NPT1/2 | NPT1 | Φ22 | 34 | 160,210,260,360 | 250,300,400,500 |
| TH01Q | M20X1.5,NPT1/2 | NPT3/4 | Φ19 | 34 | 160,210,260,360 | 250,300,400,500 |
| TH01R | M20X1.5,NPT1/2 | NPT1 | Φ22 | 34 | 60,110,160,210,260,360 | 150,200,250,300,400,500 |
| TH01S | M20X1.5,NPT1/2 | NPT3/4 | Φ19 | 34 | 60,110,160,210,260,360 | 150,200,250,300,400,500 |
| TH01T | M20X1.5,NPT1/2 | M27X2 | Φ16 | 32 | 95,145,195,245,345,445,545 | 150,200,250,300,400,500,600 |
| TH01V | M20X1.5,NPT1/2 | M27X2,M60X3,NPT2 | Φ12,Φ28 | 32,36 | 95,145,195,245,345,445,545,230,430,630,1130 | 150,200,250,300,400,500,600,260,460,660,1160 |
| TH02A | M20X1.5,NPT1/2 | Φ41.5 | Φ36 | – | 90,140,190,240,340,440,540 | 150,200,250,300,400,500,600 |
| TH02B | M20X1.5,NPT1/2 | Φ38 | Φ28 | – | 90,140,190,240,340,440,540 | 150,200,250,300,400,500,600 |
| TH02C | M20X1.5,NPT1/2 | Φ33.5 | Φ13 | – | 95,145,195,245,345,445,545 | 150,200,250,300,400,500,600 |
| TH02D | M20X1.5,NPT1/2 | Φ26.5 | Φ13 | – | 95,145,195,245,345,445,545 | 150,200,250,300,400,500,600 |
| TH02E | M20X1.5,NPT1/2 | Φ34 | Φ16 | – | 114,161,211,261,361,461,713,963 | 144,194,244,294,394,494,748,998 |
| TH02F | M20X1.5,NPT1/2 | Φ34 | Φ20 | – | 114,161,211,261,361,461,713,963 | 144,194,244,294,394,494,748,998 |
| TH02G | M20X1.5,NPT1/2 | Φ25 | Φ21 | – | 150,200,250,300,350,400,450,500,550 | 230,280,330,380,430,480,530,580,630 |
| TH02H | M20X1.5,NPT1/2 | Φ30 | Φ25 | – | 150,200,250,300,350,400,450,500,550 | 230,280,330,380,430,480,530,580,630 |
| TH03A | M20X1.5,NPT1/2 | Φ19 | Φ26.5 | – | 95,145,195,245,345,445,545 | 150,200,250,300,400,500,600 |
| TH03B | M20X1.5,NPT1/2 | Φ22 | Φ33.5 | – | 95,145,195,245,345,445,545 | 150,200,250,300,400,500,600 |
| TH03C | M20X1.5,NPT1/2 | Φ28 | Φ36 | – | 95,145,195,245,345,445,545 | 150,200,250,300,400,500,600 |
| TH03D | M20X1.5,NPT1/2 | Φ36 | Φ41.5 | – | 95,145,195,245,345,445,545 | 150,200,250,300,400,500,600 |
| TH03E | M20X1.5,NPT1/2 | Φ28 | Φ18 | – | 100 | 250,300 |
| TH03F | M20X1.5,NPT1/2 | Φ28 | Φ20 | – | 100 | 250,300 |
| TH03G | M20X1.5,NPT1/2 | Φ62 | Φ16 | – | 250 | 300 |
| TH03H | M20X1.5,NPT1/2 | Φ62 | Φ18 | – | 250 | 300 |
| TH03J | M20X1.5,NPT1/2 | Φ38 | Φ22 | – | 50,100,150 | 150,200,250,300,350 |
| TH03K | M20X1.5,NPT1/2 | Φ42 | Φ18 | – | 50,100,150,200,250,300 | 100,150,200,250,300,350 |
Reference for nominal pressure and media flow velocity
| Applicable Thermowell Code | Insertion Length U (mm) | Media Flow Velocity (m/s) | Nominal Pressure PN (MPa) |
|---|---|---|---|
| TH01T、TH01V | ≤260 | 0 | ≤6.4 |
| TH01T、TH01V | Other U | 0 | Atmospheric pressure |
| TH01V (M60×3 extended type) | ≤1100 | 0 | ≤9.8 |
| TH01A、TH01B | ≤360 | 0 | ≤6.4 |
| TH01C、TH01D | ≤560 | 0 | ≤6.4 |
| TH01E~TH01J | ≤110 | ≤80 | ≤30 |
| TH01E~TH01J | ≤260 | ≤18 | ≤30 |
| TH01E~TH01J | Other U | 0 | ≤6.4 |
| TH01K~TH01S | ≤260 | 0 | ≤6.4 |
| TH01K~TH01S | Other U | 0 | Atmospheric pressure |
| TH02A~TH02F | ≤260 | 0 | ≤6.4 |
| TH02A~TH02F | Other U | 0 | Atmospheric pressure |
| TH02G、TH02H | 550 | ≤80 | ≤40 |
| TH03A、TH03B | ≤545 | 0 | ≤6.4 |
| TH03C | ≤110 | ≤18 | ≤6.4 |
| TH03C | ≤360 | 0 | ≤6.4 |
| TH03D | ≤110 | ≤80 | ≤30 |
| TH03D | ≤260 | ≤18 | ≤30 |
| TH03D | Other U | ≤6.4 | ≤6.4 |
| TH03G | 250 | ≤80 | ≤30 |
| TH03H | 250 | ≤100 | ≤30 |
| TH03J | ≤150 | ≤80 | ≤30 |
| TH03K | ≤300 | ≤30 | ≤6.4 |
When selecting, please specify: 1) model; 2) thermowell code; 3) insertion length; 4) thermowell material.
Example A: Assembled thermocouple, swivel union type, Type K, thermowell code TH02AB, insertion length 150 mm, thermowell material 316:
TH/WRN-52 TH02AB, U=150
For selection guidance, specification confirmation or quotation, please call 0512-57892201, Mobile 13451695112, or submit an online order. Suzhou Dingluxuan Sensor Technology Co., Ltd. provides a complete matching service from temperature sensing elements to complementary ceramic insulation parts.
To order this product or get selection guidance, please call +86 512-57892201 or submit an online order.