Internal pressure performance
Because of the terrain and water supply, pipeline has internal pressure at working condition, in addition to the unexpected situations,  will produce an instant high pressure (for example: water hammer), high performance is directly related to the pipeline’s life and long-term stable supply.
Due to the excellent performance of ductile cast iron, ductile iron pipeline is much safer than other material’.
● Working Pressure Design, the value is higher than most other materials’ pipeline;
● safety factor is very high, the actual burst pressure is three times to the working pressure