Removal and replacement of the safety valve of the storage tank

1. The role of safety valve

       When the pressure of the medium in the tank rises above the maximum design carrying capacity of the tank, it will act immediately and automatically release the pressure, so that the actual pressure on the tank is limited to the safety permission range, thereby preventing excessive overpressure of the tank. Destructive accident.

2. Regulations

1. It is not advisable to install a shut-off valve between the tank body and the safety valve;

2. The safety valve should be installed vertically when installing;

3. The safety valve is generally checked at least once a year;

4. The new safety valve can only be installed and used after it has passed the verification;

5. During the safety valve inspection, if one of the following conditions is found, the user shall make corrections within a time limit and take effective measures to ensure safety during the correction period, otherwise the use of the storage tank shall be suspended:

     ①Wrong selection;

     ②The validity period of the verification is exceeded;

     ③The lead seal is damaged;

     ④ The safety valve is leaking.

3. The replacement of the safety valve

a. Replacement of the safety valve of the storage tank;

Note: Which side of the three-way switch valve switch handle under the safety valve points and which side of the safety valve is in working condition, the other side of the safety valve can be disassembled at this time;

b. Replacement of safety valve on Anjietong products:

Note: When the switch handle is in the horizontal position, the left safety valve is in working condition, and the right safety valve can be disassembled at this time;

When the switch handle is in the vertical ground position, the right safety valve is in working condition, and the left safety valve can be removed at this time;

Others follow the instructions on the label.