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10-4-4-proverka-germetichnosti-glavnogo-cilindra.html
10.4.4. Check of tightness of the main cylinderThe scheme of check of tightness of the main cylinder
1 – the valve for prorolling;
2 – a manometre;
3 – the absorbing cylinder;
4 – the main cylinder; |
5 – a flywheel;
6 – the index of displacement of a pusher;
7 – the crane;
8 – a vessel
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| PERFORMANCE ORDER |
| 1. Establish the main cylinder on the stand and connect it to stand elements, as is shown in drawing. |
| 2. Open valves 1 for prorolling of the stand and, moving some times pistons of the main cylinder for full length of their course, pump over system. |
| 3. Then close valves 1. |
| 4. Rotating a flywheel 5, slowly move pistons of the main cylinder until the pressure supervised by manometres 2, will not reach 12,5 МПа (125 kgs/sm2). In this position block a pusher of the main cylinder. The specified pressure should remain to constants not less than 5 with. |
| 5. In cases of leak of a liquid or not preservation of constant pressure during 5 with replace уплотнители cylinder pistons. |
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