Precautions in the installation of safety valves

(1) Newly installed safety valves should be accompanied by a product certificate of conformity, and should be recalibrated, sealed and issued with a safety valve calibration before installation.

(2) Pressure equipment and safety valves shall not be equipped with any valves between the flammable, explosive, toxic or viscous media containers, in order to facilitate the replacement, cleaning, can be equipped with shut-off valves, its structure and size of the diameter should not interfere with the normal operation of the safety valve. Normal operation, the shut-off valve must be fully open and sealed.