What is the difference between working,burst and proof test pressure
For a piping component,it will have a working pressure,proof test pressure and burst pressure.What is the difference between these pressure specifications for pipe fittings?
The working pressure is the working conditions range of the pipe fittings or flanges products,usually referred to as the pressure range.
The proof pressure for the pipe fittings or flanges,which means over-range pressure,is the maximum pressure that may be applied to the pipe fittings or flanges without changing its quality.After the pressure is released,the pipe fittings will recover to the original if the pressure is under the proof pressure limit.
The burst pressure is the maximum pressure that can be applied to the pipeline components without physical damage.Burst pressure can be defined as the maximum pressure this pipe fitting can withstand before breaking.When the pressure exceeds the burst pressure, the pipe will explode.
For example, the pressure range of the following piping components
Working pressure: less than 5.0 Mpa,
Proof pressure: 3times of working pressure 15.0Mpa,
Burst pressure: 6times of working pressure 30.0Mpa.