Safety valves, pressure reducing valves, pressure stabilizing valves, pressure relief valves are all pressure valves, mainly because of the difference in function.

Safety valves are valves used to prevent damage to boilers, pressure vessels and other equipment or piping due to overpressure. When the pressure is slightly higher than the normal working pressure, the safety valve automatically opens, so that the pressure drops. When the pressure is slightly lower than the normal working pressure, the safety valve automatically closes, stops discharging fluid and maintains the seal.

Pressure reducing valve is a pressure high medium to reduce the pressure of the medium of low pressure equipment, the valve is characterized, is in the case of constant changes in the inlet pressure, to maintain the outlet hear pressure and temperature values within a certain range.
Pressure relief valve is mainly used in the occasion of excessive pressure, when the pressure is greater than the set value of the valve piece is topped open in time to release the pressure, the pressure is reduced to return to its original position, and the safety valve is not much difference, the pressure relief valve is mostly used for liquids, safety valves are mostly used for gases, steam.

Pressure stabilizing valve is an area of the medium to maintain a certain pressure range of equipment. And the difference between the pressure reducing valve:

Pressure reducing valve: no matter how the inlet pressure changes, it reduces the outlet pressure to the rated value and acts as a pressure reducer.

Pressure stabilizing valve: maintains a constant upstream pressure regardless of changes in downstream pressure and demand.

Safety valves and pressure reducing valves are two types of valves, which are specialized valves. Among them, safety valve belongs to the safety relief device, is a special valve, only in the working pressure exceeds the permissible range of action, to play a protective role in the system. Pressure reducing valve belongs to the process valve, can make the high pressure logistics decompression, in order to meet the pressure requirements of the after system, its working process is continuous.