Do you know what the pipe diameter of fire hydrant is?
As the fire pipe is often in the static state, and therefore more stringent requirements of the pipeline, the pipeline needs pressure, corrosion resistance, high temperature performance.
Some buildings, fire level, indoor fire water is determined, when the diameter is too small, will cause the pipeline flow rate becomes larger, so will cause two consequences, the first water flow rate is too large for the pipeline erosion damage, second, the increase of flow rate will inevitably cause the head loss increases, so we must increase the pump lift. Specifications specify that the maximum velocity of fire hydrant piping system shall not exceed 2.5m/S.A fire pipe is a pipe material used for fire fighting, fire fighting equipment, equipment, fire fighting water, gas or other medium.
Classification of fire pipelinesDuctile iron pipe, copper tube, stainless steel tube, alloy pipe and composite pipe, plastic pipe.Spheroidal graphite cast iron pipeThe use of cast iron by adding more than 18 nodularizer, after centrifugal ductile cast iron machine high speed centrifugal cast pipe, called "ductile" (Ductile Cast Iron Pipes), referred to as ball pipe, ductile iron pipe and ductile iron pipe etc..
