Will creating a vacuum rupture the burst disc?
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Everyone: If the design pressure of the rupture disc in the reaction vessel is 0.05 MPa, will the rupture disc break when a vacuum of -0.09 MPa (gauge pressure) is created in the vessel? It is a constant-pressure reactor; what should be the appropriate design pressure for the burst disc? Since glass fittings are connected in series with the reactor, a lower pressure is desired to protect these fittings. What is the typical design pressure for glass fittings? Thank you.
The explosion vent has a direction of use, but the pressure difference required to cause it to rupture is not very large. Glass pipe fittings are purchased based on your needs, taking into account whether they are available in the market. Check online according to the specifications of your glass tubing, or consult the supplier.
It depends on the choice of rupture disc you select; once the appropriate rupture disc is chosen, there are generally no issues with the vacuum backpressure. The reverse-dome type can withstand full backpressure. The pressure setting of the burst disc should be higher than the operating pressure of the equipment being protected, but lower than its design pressure
The rupture of a burst disc is directional; under normal circumstances, it is not.