| Customization: | Available |
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| Standard: | DIN, ANSI, GB, JIS |
| Material: | Stainless Steel |
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Professional of Illuminator for Liquid Level Gauges, Illuminators for Tank manufacturers. Specialize in manufacturing Illuminator for Sight Flow Indicators in China.
Oil level Sight glasses, sight gauge, sight gage, oil level indicator, liquid sight glass| Borosilicate glass properties | |
| 1. Mechanical performance | |
| Density ρ: | 2.22±0.02g/cm3 |
| 2. Thermodynamic performance | |
Coefficient of thermal expansion: |
(0-300ºC) 4.5±0.1×10-6K-1 |
| Soften Point: | 820±10ºC |
| strain point: | 510±10ºC |
| specific heat: | (20-100ºC) 0.82KJ×(×K)-1 |
| Thermal conductivity: | 1.25W×(m×K)-1 |
| thermal shock resistance: | 110 K |
| enhancement type: | >180 K |
| temperature performance: | 120 K |
| enhancement type: | >180 K |
Max. working temperature: |
short period (<10h) 350ºC |
| long period (>10h)300ºC | |
| 3. Chemical performance | |
| Water tolerance: | ISO719/DIN12111 HGB1 |
| ISO720 HGA1 | |
| acid proof | ISO1776/DIN12116 1 |
| alkali proof | ISO695/DIN52322 A2 |
| 4. optical property | |
| refractive index: | Nd:1.47380 |
| transmittance: | >90% |
| 5. Electrical performance | |
| electrical resistivity: | lgρ 260ºC 8.0Ω× |
| dielectric loss: | tanσ(1 megacycle 20ºC) 38×10-4 |
| dielectric constant | ε=4.6 |
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