Under normal operating conditions of the process system, there is both positive pressure and negative pressure
Thread Content
Under normal operating conditions of the process system, when there is both positive pressure and negative pressure, how should the selection of pipes and fittings be determined? What should be the focus?
During the design or selection process, both negative pressure and positive pressure need to be taken into account
Should a vacuum valve or a pressure-resistant valve be chosen for the valve, and a vacuum flange or a pressure-resistant flange for the connection?
Positive pressure prevails; the maximum negative pressure is only about 1 atmosphere
Both positive and negative pressures need to be taken into account; I don’t think there’s any priority – either too high a positive or negative pressure can cause damage to the equipment