safety valve
Thread Content
Our company needs to install a safety valve on the main steam pipeline. The diameter of this main pipeline is DN100, but the safety valves designed for DN100 are too large, which makes installation and annual inspections inconvenient. Is it possible to install a safety valve using a DN50 tee on the main pipeline? Will this have any impact?
The size of the safety valve that should be used needs to be determined through calculation; it is closely related to the pressure in the pipeline – it’s not something that can be chosen arbitrarily based on personal preference
I agree with what was said above; design calculations are required, and generally the diameters are not identical – the diameter of the safety valve is usually smaller.
According to the calculations, the \"nominal diameter\" of the safety valve must be such that its discharge capacity is ≥ the safe relief capacity of the pressure vessel； When selecting a safety valve, the most important factor is its discharge capacity; that is, the discharge capacity of the safety valve used in a pressure vessel must be greater than its safe discharge volume. Only in this way can it ensure that, when the vessel is under overpressure, the safety valve opens and allows gas to be discharged promptly, preventing the pressure inside the vessel from continuing to rise.
Even when a DN50 safety valve is installed, it cannot be opened directly; an eccentric tee should be used instead
The safety facilities must be installed in accordance with their designed size; any alterations to the design without permission carry legal responsibility
It is generally installed on the steam distribution cylinder; how do you install it on the main pipe?
I learned something new; I only knew that it couldn’t be changed casually. But I don’t know the principle