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Bimetallic thermometer
Applications
Tel: 0512-57892201 Mobile: 13451695112
| Code Segment | Meaning & Options | Value in This Example |
|---|---|---|
| W | Temperature instrument | W |
| S | Metal Expansion Type | S |
| S | Bimetal Sensing Element | S |
| 4 | Case Nominal Dia. （3：φ60 4：φ100 5：φ150） | 4 |
| 8 | Position Type （0:Axial (straight) 1:Radial (angular) 2:135° (drilled angle) 8:Universal (adjustable angle)） | 8 |
| 1 | Mounting Fitting （0:Without fixing device 1:Movable male thread 2:Movable female thread 3:Fixed thread 4:Fixed flange 5:Compression thread 6:Compression flange） | 1 |
| W | Protection Type (Unmarked: general purpose W: protected type F: corrosion-resistant type) | W |
The bimetallic thermometer is a local indicating instrument for medium and low temperatures. It directly measures the temperature of liquids, steam and gaseous media from 80 °C to +500 °C in various production processes.
○ On-site temperature display, intuitive and convenient,
○ Safe and reliable with a long service life,
○ Various structural types to meet different requirements.
The bimetallic thermometer is based on a bimetal strip wound into a curved ring. When one end is heated and expands, it drives the pointer to rotate, and the indicating instrument shows the corresponding temperature value.
○ Applicable standards
JB/T 8803-1998
○ Dial nominal diameter: 60, 100, 150
○ Accuracy Class:(1.0),1.5
○ Thermal Response Time:≤40S
○ Ingress protection:IP55
The angle adjustment error shall not exceed 1.0% of the span.
The hysteresis error of the thermometer shall not exceed the absolute value of the basic error limit.
The repeatability limit range of the thermometer shall not exceed 1/2 of the absolute value of the basic error limit.
| Measuring Range °C | Scope of application | |
| Industrial, commercial | Laboratory, small-scale | |
| -80～40 | √ | √ |
| -40～80 | ||
| 0～50 | ||
| 0～100 | ||
| 0～150 | ||
| 0～200 | ||
| 0～300 | ||
| 0～400 | ||
| 0～500 | ||
| Working area | Temperature °C | Relative humidity % |
| Sheltered location | -25～+55 | 5～100 |
| Outdoor location | -40～+85 |
| Type | A | B | C | E | L | d |
| Axial type | 65 | 23 | 73 | – | 75 100 150 200 300 400 500 750 1000 |
Ø6 |
| 105 | ||||||
| 155 | ||||||
| Radial type | 65 | 50 | 110 | 34 | ||
| 105 | ||||||
| Universal type | 23 | 178 | 120 | |||
| 155 | ||||||
| 135° type | 105 | 85 | – | |||
| 155 |
| M | H | S | d |
| M16×1.5 | 12 | 18 | Ø6 Ø8 Ø10 |
| M20×1.5 | 16 | 22 | |
| M27×2 | 20 | 30 | |
| NPT1/4 | 15 | 18 | |
| NPT1/2 | 19 | 22 | |
| NPT3/4 | 25 | 30 |
| M | H | S | d |
| M16×1.5 | 12 | 18 | Ø6 Ø8 Ø10 |
| M20×1.5 | 16 | 22 | |
| M27×2 | 20 | 30 | |
| NPT1/4 | 15 | 18 | |
| NPT1/2 | 19 | 22 | |
| NPT3/4 | 25 | 30 |
| M | H | S | d |
| M16×1.5 | 12 | 18 | Ø6 Ø8 Ø10 |
| M20×1.5 | 16 | 22 | |
| M27×2 | 20 | 30 | |
| NPT1/4 | 15 | 18 | |
| NPT1/2 | 19 | 22 | |
| NPT3/4 | 25 | 30 |
| M | H | S | d |
| M12×1.5 | 15 | 19 | Ø6 |
| M16×1.5 | 22 | Ø8 | |
| M20×1.5 | 16 | 24 | Ø10 |
| D | D。 | D₁ | S | d₀ | d |
| Ø60 | Ø42 | Ø24 | 22 | Ø9 | Ø8 Ø10 |
| D | D₁ | D₂ | H | d。 | d |
| Ø105 | Ø75 | Ø55 | 16 | Ø14 | Ø8 Ø10 |
Note: ANSI, JB, HG and other standard flanges are available
Model & Specification
| Model | Measuring Range °C | Accuracy Class | Protection Tube Material | Specification | Mounting Fitting | |
| d | L | |||||
| WSS-310 | -80～40 -40～80 0～50 0～100 0～150 0～200 0～300 0～400 0～500 |
1.5 | 1Cr18Ni9Ti
304 316 316L Hastelloy C-276 |
Ø60 | 75 100 150 200 300 400 400 500 750 1000 |
Without fixing device |
| WSS-410 | Ø100 | |||||
| WSS-510 | Ø150 | |||||
| WSS-311 | Ø60 | Movable male thread | ||||
| WSS-411 | Ø100 | |||||
| WSS-511 | Ø150 | |||||
| WSS-312 | Ø60 | Movable female thread | ||||
| WSS-412 | Ø100 | |||||
| WSS-512 | Ø150 | |||||
| WSS-313 | Ø60 | Fixed thread | ||||
| WSS-413 | Ø100 | |||||
| WSS-513 | Ø150 | |||||
| WSS-314 | Ø60 | Fixed flange | ||||
| WSS-414 | Ø100 | |||||
| WSS-514 | Ø150 | |||||
| WSS-315 | Ø60 | Compression thread | ||||
| WSS-415 | Ø100 | |||||
| WSS-515 | Ø150 | |||||
| WSS-316 | Ø60 | Compression flange | ||||
| WSS-416 | Ø100 | |||||
| WSS-516 | Ø150 | |||||
| Model | Measuring Range °C | Accuracy Class | Protection Tube Material | Specification | Mounting Fitting | |
| d | L | |||||
| NSS-420 | -80～40 -40～80 0～50 0～100 0～150 0～200 0～300 0～400 0～500 |
1.5 | 1Cr18Ni9Ti 304 316 316L Hastelloy C-276 |
Ø100 | 75 100 150 200 300 400 400 500 750 1000 |
Without fixing device |
| WSS-520 | Ø150 | |||||
| NSS-421 | Ø100 | Movable male thread | ||||
| NSS-521 | Ø150 | |||||
| WSS-422 | Ø100 | Movable female thread | ||||
| WSS-522 | Ø150 | |||||
| NSS-423 | Ø100 | Fixed thread | ||||
| WSS-523 | Ø150 | |||||
| WSS-424 | Ø100 | Fixed flange | ||||
| WSS-524 | Ø150 | |||||
| WSS-425 | Ø100 | Compression thread | ||||
| WSS-525 | Ø150 | |||||
| NSS-426 | Ø100 | Compression flange | ||||
| WSS-526 | Ø150 | |||||
| Model | Measuring Range °C | Accuracy Class | Protection Tube Material | Specification | Mounting Fitting | |
| d | L | |||||
| WSS-480 | -80～40 -40～80 0～50 0～100 0～150 0～200 0～300 0～400 0～500 |
1.5 | 1Cr18Ni9Ti
304 316L Hastelloy C-276 |
Ø100 | 75 100 150 200 300 400 400 500 750 1000 |
Without fixing device |
| SS-580 | Ø150 | |||||
| WSS-481 | Ø100 | Movable male thread | ||||
| SS-581 | Ø150 | |||||
| SS-482 | Ø100 | Movable female thread | ||||
| SS-582 | Ø150 | |||||
| SS-483 | Ø100 | Fixed thread | ||||
| WSS-583 | Ø150 | |||||
| SS-583 | Ø100 | Fixed flange | ||||
| NSS-584 | Ø150 | |||||
| SS-485 | Ø100 | Compression thread | ||||
| SS-585 | Ø150 | |||||
| WSS-486 | Ø100 | Compression flange | ||||
| WSS-586 | Ø150 | |||||
1)Model
2) Dial diameter
3)Accuracy Class
4) Mounting type
5) Measuring range
6) Length or insertion depth
Example A: Universal type, dial diameter Ø100, measuring range 0–400 °C, class 1.5, movable male thread M27×2, length 450 mm, WSS-481, 0–400 °C, L=450, M27×2, class 1.5
| Code | M | D | D₁ | D₂ | d | h | H |
| 21A | M12×1.5 | Ø24 | Ø16 | Ø12 | Ø8 | 20 | 60 |
| 21B | M16×1.5 | ||||||
| 21C | M20×1.5 | Ø28 | |||||
| 21D | M27×2 | Ø39 | Ø28 | Ø24 | Ø20 | 35 | |
| 21E | M33×2 | Ø48 | Ø38 | Ø30 | Ø22 | 90 | |
| 21F | NPT1/2 | Ø28 | Ø16 | Ø12 | Ø8 | 20 | 60 |
| 21G | NPT3/4 | Ø39 | Ø28 | Ø24 | Ø20 | 35 | |
| 21H | NPT1 | Ø48 | Ø38 | Ø30 | Ø22 | 90 |
| Code | M | D | D₁ | d | h | H |
| 22A | M12×1.5 | Ø24 | Ø16 | Ø8 | 20 | 35 |
| 22B | M16×1.5 | |||||
| 22C | M20×1.5 | Ø28 | 45 | |||
| 22D | M27×2 | Ø39 | Ø28 | Ø20 | 35 | 60 |
| 22E | M33×2 | Ø48 | Ø38 | Ø22 | 90 | |
| 22F | NPT1/2 | Ø28 | Ø16 | Ø8 | 20 | 45 |
| 22G | NPT3/4 | Ø39 | Ø28 | Ø20 | 35 | 60 |
| 22H | NPT1 | Ø48 | Ø38 | Ø22 | 90 |
| Code | M | D | D1 | D | h | H |
| 23B | M16×1.5 | Ø24 | Ø16 | Ø8 | 20 | 45 |
| 23C | M20×1.5 | Ø28 | ||||
| 23D | M27×2 | Ø39 | Ø28 | Ø20 | 35 | 80 |
| 23E | M33×2 | Ø48 | Ø38 | Ø22 | ||
| 23F | NPT1/2 | Ø28 | Ø16 | Ø8 | 20 | 45 |
| 23G | NPT3/4 | Ø39 | Ø28 | Ø20 | 35 | 80 |
| 23H | NPT1 | Ø48 | Ø38 | Ø22 |
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.