Rupture Valve Test - GMV VC 3006 Serie Instrucciones De Regulacion, Uso Y Manutención

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8. RUPTURE VALVE TEST

The following instructions are valid for GMV 3010 series control valves. For other types, refer
to instructions provided from manufacturers.
8.1 rupture valve functionality test
1. Move the elevator (cab) to the highest landing at nominal load.
2. Tighten screw #5 fully, and call the elevator to lowest landing.
3. When the cab reaches a speed corresponding to the flow rate of the valve, the valve
closes and the elevator stops.
8.2 valve failure
If the valve does not intervene, perform the following operations:
1. Loosen the lock nut (3) and tighten the adjusting screw (2), one turn, holding it in place.
2. Repeat steps 1, 2, and 3 of section 8.1, until the rupture valve intervenes.
8.3 final check-up
Once the above test is performed:
1. Fully open screw #5 and verify that the valve does not intervene at normal down speed.
2. Measure the real distance X after adjustment. Read the trigger flow rate on the graph, for
the corresponding valve.
(E.g.: X = 8 mm / VC3006 - 1" 1/4
3. Mount the protective cap (1).
NOTE: The trigger flow rate acquired from the diagram should however be lower than or equal
to the maximum flow rate Q
4. Record the trigger flow rate permanently, on the valve data plate.
5. It is recommended to seal the valve protection cap to prevent tampering.
Q = 125 l/min).
i
.
i max
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