Product type: Glass Tube. Application: Daily Use.
Overview
The Borosilicate 3.3 Flow Indicator Glass Tube is supplied as a precision glass tube / rod made from Borosilicate Glass. Listed geometry: size : 3/8", 7/16" 1/2", 9/16", 5/8", 11/16", 3/4", 7/8. Optical / electrical data: transmittance ≥92%, sheet resistance 300ºC instant temperature difference. Temperature -20℃~80℃. Listed for Daily Use applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Borosilicate Glass |
|---|---|
| Type | Glass Tube |
| Size | : 3/8", 7/16" 1/2", 9/16", 5/8", 11/16", 3/4", 7/8 |
| Application | Daily Use |
| Color | Transparent |
| Glass Type | Hollow Glass |
| Principle | Vibration Sensor |
| Range | 0-3m |
| Measurement Accuracy | ±3mm |
| Accuracy | 0.1% |
| Kind | Liquid Level Transmitter |
| Process Temperature | -20℃~80℃ |
| Name | Clear Flow Sight Glass Tube |
| Decoration | Red Lines |
| Wall Thickness | Heavy Wall and Super Heavy Wall |
| Special | High Precision and Straightness |
| Working temperature range | -60ºC ~ 450ºC; withstand 300ºC instantaneous temperature difference without breakage. |
| Thermal expansion coefficient | 3.3×10/K |
| Operating temperature | -60ºC ~ 450ºC |
| Max thermal shock resistance | 300ºC instant temperature difference |
| Light transmittance | ≥92% |
| Tolerance | OD ±0.1mm, Length ±1mm |
| Pressure range | Low & medium pressure |
| Certifications | ISO9001, RoHS compliant |
| Supplier | Jinan Honhai Glass Company Limited |
What to specify when you request a quote
- Material — listed as “Borosilicate Glass”; name the glass (borosilicate 3.3, quartz, soda-lime).
- OD, ID and wall — listed as “: 3/8", 7/16" 1/2", 9/16", 5/8", 11/16", 3/4", 7/8”; give outer and inner diameter or wall and their tolerances.
- Length and ends — give length, end finish and any closed or flared ends.
- Straightness and bore — state straightness and bore tolerance for precision tubing.
Engineering guides for this part
For material grades and coating options, see Borofloat 33 Glass: Material Selection for Precision Substrates. How parts like this are machined and finished is covered in Precision Bore Glass Tubing Processing: End-to-End Manufacturing for Industrial Buyers. For an application example, read Precision Borosilicate Glass Wafers for Appliance Sensor Components. Before sending a drawing, check Precision Glass Material Selection: Fused Silica vs Borosilicate & More. A related standard product is 4-inch Borofloat 33 Glass Wafers.
