Description
High Precision Borosilicate Glass Tube Used For Glass Flow Restrictors
Allso called thick wall glass tube and have strict tolerance.
Glass Micro Bore Tube Features
Made to a specified flow rate
Inside bore diameters down to 25 microns with a precision of 1 micron
Dimensionally stable and uniform over the specified length
Inert and Non-reactive to fluids and pharmaceuticals
Custom-sized to IV tube sets
Suitable for ETO, E-Beam or Gamma Radiation sterilization methods
Economically produced to custom sizes
Compatible with UV adhesive curing
Material properties：
|
Material |
COE 3.3 borosilicate glass |
|
|
Main Composition |
SiO2 |
80±0.5% |
|
|
B2O3 |
2.4±0.2% |
|
|
Na2O+K2O |
4.3±0.2% |
|
|
Coefficient of thermal expansion(20°C/300°C) |
3.3±0.1(10–6K–1) |
|
|
Softening point |
820±10°C |
|
Chemical and Physical property |
Melting point |
1260±20°C |
|
|
heat resistance temperature |
525±15°C |
|
|
Hydrolytic resistance at 98°C |
ISO719-HGB1 |
|
|
Hydrolytic resistance at 121°C |
ISO720-HGA1 |
|
|
Density at 20°C |
2.23g/cm3 |
|
|
Acid resistance |
ISO1776-1 |
|
|
Alkali resistance |
ISO695-A2 |
