Pipe pressure and thermal stability of machine
The purpose of,
To measure hot and cold water with plastic pipe material, composite material (such as: PP, PP - B, PP - R - A, PZ - X, PB, PVC and aluminous model multiple tube, etc.) in the long-term constant under the internal pressure, the pressure of time and thermal stability, plastic pipe manufacturing and testing institutions necessary testing equipment.
hot and cold water piping system with polypropylene The second part of pipe and ISO1167 manufacturing standard requirements.
Three, testing machine
Equipment mainly has four parts
The computer system, main control box, incubator, tooling parts
Four, the main technical parameters
1. 3 or all independent control pressure;
2. The pressure range: 0-16 mpa;
3. The accuracy of pressure control: + / - 1%;
4. The pressure value resolution: 0.001 Mpa;
5. The temperature control range: at room temperature to 95 ℃;
6. Control accuracy: + / - 3 ℃;
7. The timing range: 0-9999 h59min59s;
8. Timing accuracy: 0.1%;
9. Voltage: 380 v / 220 v;
10. Envelop dimensions (mm)
The main control box: length * width * 1150 * 750 * 1700
Incubator: length * width * height 1350 * 730 * 1050 (DN80 the bore diameter, three way control)
Computer cabinet: length * width * height 940 * 800 * 1320
Five, the test pressure calculation
P = sigma * 2 emin/dem - emin
Sigma - plastic tubing ring stress (Mpa)
Dem - plastic tubing (mm) the average diameter
Emin - sample free part of the minimum wall thickness (mm)
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