Standard UV Block Quartz Tube

I. 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.

II. Product Features

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.

III. Product Type

WGPQ 321 ,standard UV block quartz tube

IV. Typical Size

 OD RangeODToleranceWallThicknessWTToleranceOut ofRound Siding Bow
3<Ф≤10±0.11~2.0±15%2%12%0.15%
10<Ф≤20±0.21~2.5±15%1.25%12%0.15%
20<Ф≤30±0.251.5~3.0±15%1.25%12%0.15%
30<Ф≤40±0.351.5~4.0±15%1.25%12%0.15%
40<Ф≤50±0.22.0~4.0±15%1.25%12%0.15%

V. Physical and Chemical Properties

i. Mechanical and Thermal Properties

Density(20℃kg/m3Thermal Expansion(200-300℃℃-1 Softening Point(℃)Annealing Point(℃) Strain Point(℃)
2.1*1035.8*10-7163011801070

ii. Impurity Value

ImpurityNaKMgLiCaFeAlTiCu
Typicalvalue 5.0 5.0 1.0 1.0 3.0 1.5 20 3.0 0.5

iii. OH Content

Typical Value without BakingAfter baking
130<10,<20

iv. Optical Properties

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