Furtun Petro pentru nafta, petrol/motorina/benzina, uleiuri
Structure:
Quality Requirements: |
The hoses may meet the requirements as concerns the protection against electricity of explosive mixtures and vapors of flammable liquids belonging to subgroups IIA and IIB provided the following conditions are observed:
For zones 1, 2, 21, 22
All elements mounted on the hose: connectors, end pieces etc. of conductive materials shall be connected with copper strand embedded in hose walls and grounded.
The conducting objects among which the hose is located shall be connected to copper strand and effectively grounded.
For zones 0 and 20
In case of expected conveying of liquids or dust-air mixtures, it is necessary to analyze individually the static-electricity protection of all the process system(s).
Resistance to bending:
The hose section subject to bending to diameter specified in the Table should neither break not crack and should pass positively the tests determined in the standard, ISO 1746.
Resistance to Vacuum:
The hose subject to vacuum of 65 kPa at 23oC (absolute pressure of 35 kPa) should not exhibit any suck-backs/concavities or cracking.
Internal |
Internal |
Wall |
Weight (g/m) |
Working 23 +/- 2oC |
Working 55 +/- 2oC |
Bending 23 +/- 2oC |
20 |
+/- 1,25 |
4,30 |
415 |
0,3 |
0,07 |
120 |
25 |
+/- 1,25 |
4,60 |
555 |
0,3 |
0,07 |
150 |
32 |
+/- 1,25 |
4,80 |
680 |
0,3 |
0,07 |
192 |
35 |
+/- 1,25 |
4,80 |
730 |
0,3 |
0,07 |
210 |
38 |
+/- 1,50 |
4,80 |
775 |
0,3 |
0,07 |
228 |
40 |
+/- 1,50 |
4,90 |
825 |
0,3 |
0,07 |
240 |
50 |
+/- 1,50 |
5,60 |
1165 |
0,3 |
0,07 |
300 |
63 |
+/- 1,50 |
5,90 |
1700 |
0,3 |
0,07 |
378 |
75 |
+/- 2,00 |
6,30 |
1940 |
0,3 |
0,07 |
450 |
80 |
+/- 2,00 |
6,50 |
2135 |
0,3 |
0,07 |
480 |
90 |
+/- 2,00 |
6,90 |
2425 |
0,3 |
0,07 |
540 |
100 |
+/- 2,00 |
7,70 |
3200 |
0,3 |
0,07 |
600 |
110 |
+/- 2,00 |
8,10 |
3500 |
0,3 |
0,07 |
660 |
125 |
+/- 2,00 |
8,50 |
4075 |
0,3 |
0,07 |
750 |
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Safety coefficients - 1 : 4 |
Pagina precedentă: Furtun WS pentru praf si vapori
Pagina următoare: Furtun Sanit