Installation steps of safety valve:

When selecting a safety valve, appropriate consideration should be given to climate conditions, process conditions, or other environmental conditions that may have a negative impact on the performance of the safety valve. The phenomenon of oscillation or hammering can cause a decrease in the displacement of the safety valve or damage to the sealing surface and other components. To minimize such risks, the following precautions should be taken when installing safety valves.

1) The safety valve must be installed vertically upwards on the top of the container or the upper part of the pipeline. If it is intended to install the safety valve in a non vertical upward position, approval from the manufacturer should be obtained, and attention should be paid to directing the arrow indicating the flow direction of the medium in the correct direction.

2) When the safety valve is installed on an inlet branch pipe, the minimum cross-sectional area of the channel of the branch pipe should not be less than the inlet cross-sectional area of the safety valve.

3) The installation position of the safety valve should be as close as possible to the protected system, and its inlet branch pipe should be short and straight. For high-pressure and/or high displacement situations, the inlet branch pipe should have a sufficiently large fillet radius at its inlet, or have a conical channel with an inlet cross-sectional area approximately twice that of the outlet.

4) The inlet branch pipe of the safety valve should not be set directly opposite any branch pipe.

5) The pressure relief port or fusible plug of the safety valve should be located in a position that will not cause harm to people from escaping refrigerant. The released refrigerant can be discharged into the atmosphere using appropriate methods, but it should be kept away from the ventilation inlet of the building or discharged into an appropriate absorption solution.