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Multi-effect distilled water machine stainless steel tube Pharmaceutical pure water machine stainless steel tube
The multi-effect distilled water machine produces distilled water that is non-conductive, hypotonic, electrolyte-free, ion-free, and impurity-free, and is used in a variety of industries: cleaning of electronic equipment, ensuring stable operation of the machine, extending machine life, and pharmaceutical preparation industry, Laboratory applications, etc.
Austenitic seamless stainless steel pipes are used in the manufacture of multi-effect distilled water machines and must meet the requirements of FDA and GMP. The diameters are in English and metric systems. The commonly used pipe diameters are metric specifications: 10mm, 12mm, 14mm, etc.
Several main requirements of seamless stainless steel pipe for multi-effect distilled water machine:
1.Material
In order to better meet the purity requirements of distilled water, this pipeline currently uses only one austenitic stainless steel.
UNS |
S31603 |
EN |
1.4435 |
ASTM |
TP316L |
2.Cold working process
A combination of cold rolling and cold drawing is adopted to ensure smooth and delicate inner and outer surfaces. After annealing treatment, a high-quality metallographic structure can be obtained.
3.Production standards
ASTM: A213 A269
DIN EN ISO: EN 10216-5、DIN 28180、
4.Product specification
A213 A269 |
EN 10216-5 |
|||
Tube Size |
thickness |
OD |
thickness |
|
inch |
mm |
mm |
mm |
mm |
1/8" |
3.18 |
0.51 |
6 |
1.0 |
3/16" |
4.76 |
0.51、0.71 |
8 |
1.0 |
1/4" |
6.35 |
0.51、0.71、0.89 |
10 |
1.0 |
5/16" |
7.94 |
0.71、0.89 |
10.2 |
- |
3/8" |
9.53 |
0.71、0.89 |
12 |
1.0 |
1/2" |
12.7 |
0.71、0.89、1.24 |
12.7 |
- |
5/8" |
15.88 |
0.89、1.24 |
13.5 |
- |
3/4" |
19.05 |
0.89、1.24 |
14 |
1.0 |
1" |
25.4 |
0.89、1.24、1.65 |
16 |
1.0、1.2 |
5.Surface delivery status
Bright annealing: heat treatment under protective atmosphere must be used.
Internal surface finish:≦Ra0.4um
6.Nondestructive testing
Eddy current testing: perform inspections according to standard sample tubes, in accordance with standards ASTM E426, EN 10246-2.
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