Application
It is used for most of the ultraviolet filtering lamps such as ultraviolet tungsten halogen lamp, ultraviolet mercury lamp, metal halide lamp and ultraviolet sleeve tube.
Product Feature
A doped transparent quartz tube, which has a softening point about 50℃lower than conventional transparent quartz tube, absorbs UV-A / B / C, filters out almost all ultraviolet rays, and has a very low level of OH control ( can be less than 2 ppm). And Extend lamp life.
Product Type
PQ 321 ,standard UV block quartz tube
Typical Size (Unit:mm)
OD Range | OD Tolerance | Wall Thickness | WT Tolerance | Out of Round | Siding | Bow |
3＜Ф≤10 | ±0.1 | 1～2.0 | ±15% | 2% | 12% | 0.15% |
10＜Ф≤20 | ±0.2 | 1～2.5 | ±15% | 1.25% | 12% | 0.15% |
20＜Ф≤30 | ±0.25 | 1.5～3.0 | ±15% | 1.25% | 12% | 0.15% |
30＜Ф≤40 | ±0.35 | 1.5～4.0 | ±15% | 1.25% | 12% | 0.15% |
40＜Ф≤50 | ±0.2 | 2.0～4.0 | ±15% | 1.25% | 12% | 0.15% |
50＜Ф≤60 | ±0.5 | 2.5～5.0 | ±15% | 1.25% | 12% | 0.15% |
60＜Ф≤80 | ±0.7 | 3.0～5.5 | ±15% | 1.25% | 12% | 0.15% |
80＜Ф≤100 | ±0.8 | 3.0～10.0 | ±15% | 1.25% | 12% | 0.15% |
Remark: Customized size is available
Physical & Chemical Properties
1) Mechanical & Thermal Properties
Density （20℃kg/m3） | Thermal Expansion （200-300℃℃-1） | Softening Point（℃） | Annealing Point （℃） | Strain Point （℃） |
2.1*103 | 5.8*10-7 | 1630 | 1180 | 1070 |
2) Impurity Value (Unit: ppm)
Impurity | Na | K | Mg | Li | Ca | Fe | Al | Ti | Cu |
Typical value | 5.0 | 5.0 | 1.0 | 1.0 | 3.0 | 1.5 | 20 | 3.0 | 0.5 |
Remark: The figures above only indicate typical values, excluding doped elements.
3) OH Content (Unit:ppm)
Typical Value without Baking | After baking |
130 | ＜10，<20 |
4) Optical Properties
Our Main Product
Main Application
Company Advantage
Title Goes Here
1. SiO2> 99.99% ,tubing fused quartz;
2. Operating Temperature: 1250℃. SoftenTemperature: 1730℃;
3. Excellent visual and chemical performance;
4. Without surface coating and infectant;
5. Health care and environmental protection;
6. Any dimension can be made;
7. CE.RoHs SGS approved;
CNAS Certified Laboratory
Production Main Facilities
Packaging & Delivery
Inner package: bubble wrap; Outside package: carton or wooden case.
If you have special requirements, we will be glad to meet your needs, such as gift package.
All the products will be carefully packed , so don't worry that it will be broken during the shipment.
FAQ
Q1. Can I have a sample order?
A: Yes, we welcome sample order to test and check quality.
Q2. What about the delivery time?
A: Within 15 days after receiving deposit.
Q3. Do you have any MOQ limit?
A: Low MOQ, 1pc for sample checking is available
Q4. How do you ship the goods and how long does it take to arrive?
A: DHL, UPS, FedEx or TNT are optional for small order. It usually takes 3-5 days to arrive. Airline and sea shipping are also available.
Q5. How to proceed an order in your factory?
A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.
Q6. Is it OK to print my logo on the product?
A. Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q7. Does your factory accept Inspection?
A: Yes,we accept customer inspection or the third party inspection.
Customers Visiting & Exhibition Moment
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