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1. Installation location? ①Install vertically upward. ②The installation location should be as close as possible to the equipment or pipes being protected. ③Install it in a location that is easy to maintain and adjust, with sufficient space around it. ④The safety valve of a pressure vessel is installed in the gas space above the liquid level within the vessel body, or it can also be installed on a pipe whose connection point is located in the gas space of the pressure vessel. ⑤For containers and equipment used to hold flammable, toxic, or viscous substances, a globe valve can be installed in front of the safety valve; however, the flow area of this globe valve must not be smaller than the minimum flow area of the safety valve. It should also be sealed with lead to ensure that it remains in an open position at all times. ⑥The safety valve should be installed in the opposite direction to the stop valve, in order to reduce the influence of the valve’s own weight and prevent stress fatigue as well as vibration-induced fatigue during discharge. ⑦For safety valves that may be blocked or corroded by materials, a burst disc is installed in front of their inlet, and a check valve is placed between the safety valve and the burst disc. Anti-clogging measures such as back flushing, heating, or insulation are applied to the inlet pipes. ⑧Safety valves installed on pipelines should be placed in areas where the fluid pressure is relatively stable and at a certain distance from sources of pressure fluctuations; they must not be installed in dead corners of horizontal pipelines. ⑨For pipelines, heat exchangers, or pressure vessels that use liquid media, when valves are closed thermal expansion may occur, leading to high pressure buildup; in such cases, the safety valve can be installed horizontally to allow the liquid to flow out directly downward. ⑩For emergency air discharge, the pipe outlet must be smooth and not sharp, without any burrs, to prevent static discharge. ⑪The installation point of the safety valve must not subject it to excessive back pressure; it should remain within the specified allowable range. ⑫The valve body of the safety valve must be supported stably. ⑬For containers containing extremely hazardous, highly hazardous, or flammable and explosive media, the discharge outlet of the safety valve shall be directed to a safe location and properly treated. When two or more safety valves share a single discharge pipe, the cross-sectional area of that pipe must be at least equal to the sum of the cross-sectional areas of the outlets of all the safety valves. However, oxygen or flammable gases, as well as any two gases that can react with each other chemically, cannot share a single discharge pipe. 2. Installation requirements? ①For corrosive media, the safety valve should be installed in combination with a burst disc. ②For highly toxic media, a safety valve type with good sealing performance should be selected. ③For safety valves used with high-temperature media, high temperatures have a significant impact on the springs; therefore, spring-type safety valves should be avoided. ④Sprinkler protection should be provided for important safety valves, or those that are susceptible to fire. ⑤For safety valves used on spherical tanks, two safety valves should be installed, and the pressure relief capacity of either of these valves must be sufficient to meet the tank’s safety pressure relief requirements. ⑥An electrostatic bypass wire should be installed on the safety valve. ⑦To prevent the safety valve from opening and closing repeatedly, which can cause flutter and damage to the valve, it is necessary to reduce the pressure drop in the pipeline leading to the safety valve; this is achieved by increasing the diameter of the inlet pipe or shortening the length of the inlet section.