How to ensure that the safety valve of the pressure vessel is installed correctly?

1. Vertical installation: The safety valve should be installed vertically in the gas phase space above the liquid level of the pressure vessel, or connected to the pipe connected to the gas phase space of the pressure vessel.
2. Connection pipe requirements: The cross-sectional area of ​​the through hole of the connecting pipe and pipe fittings between the pressure vessel and the safety valve shall not be less than the inlet cross-sectional area of ​​the safety valve, and the connecting pipe should be as short and straight as possible.
3. No resistance at the outlet: The outlet of the safety valve should be free of resistance to avoid back pressure. If a discharge pipe is installed, its inner diameter should be larger than the outlet diameter of the safety valve.
4. Avoid installing a stop valve: It is generally not advisable to install a stop valve between the pressure vessel and the safety valve. However, for pressure vessels containing flammable, extremely, highly, moderately hazardous or viscous media, a stop valve can be installed between the pressure vessel and the safety valve to facilitate the replacement and cleaning of the safety valve, but the structure and diameter of the stop valve should not hinder the normal discharge of the safety valve.
5. Discharge conduit: For pressure vessels with flammable, extremely, highly or moderately toxic media, a discharge conduit should be installed at the discharge port of the safety valve to lead the discharged media to a safe place and properly handle it.
6. Installation position: The safety valve is best installed directly at the highest position of the pressure vessel body. The safety valve of the liquefied gas storage tank must be installed in the gas phase.
7. Regular calibration: The safety valve is generally calibrated at least once a year.