Before leaving the factory, conduct a hydraulic test on the corrugated compensator of the pump room water supply system. Under normal circumstances, dn300 small-diameter bellows require hydraulic testing, and dn500 large-diameter bellows require penetration. So, why can't we ignore the hydraulic test? What are the advantages of hydrostatic testing?
The pipeline thinks that the advantage of the water pressure test of the corrugated compensator of the pump room water supply system is to check whether the corrugated pipe and the welds are leaking, so as to better check the air tightness of the corrugated compensator of the pump room water supply system.

1. The pressure test of the compensator system is allowed not to exceed 1.5 times the nominal pressure.
2. For the compensator and its connecting pipe used for gaseous media, in the water pressure test, it should be considered whether it is necessary to add a temporary support on the compensator connecting pipe when replenishing water.
3. The water for hydraulic test must be clean and non-corrosive, and the chloride ion content in the water must not exceed 25ppm.
4. After the water pressure test, the water in the bellows should be drained, and the inner surface of the bellows should be dry quickly.
5. During the operation of the pipeline with compensator, the valve should be opened and closed gradually to avoid sudden changes in temperature and pressure in the pipeline, which may cause damage to the support or compensator.