China En877 Grey Cast Iron Pipe Fittings by China Manufacturer

Pipe fittings conforming to DIN/EN877/ISO6594
Material:Cast Iron with flake graphite
Qualilty:GJL-150 according to EN1561
Coating: SML,KML,BML,TML
Size:DN40-DN300
The pipe fittings produced by our company have smooth surface, high density, no white,
High strength, light weight, reasonable design in structure,
beautiful externality used on high buildings and environmental protecting,
strength corrosion-resistant coating for fittings
Bottom reducer bend 150x100-88 is a special fittings. in the building system normally use DN100 pipes but underground will use DN150 pipes . So use a bend 150-88 and a reducer150x100 and a couplings DN100 for changing pipe sizebut this new special fittings can replace bend 150-88 and Reducer 150x100 and Couplings DN100. it will be more and more strong to face to water pressure. and easy installation and also save more and more cost .It is a new fittings in drainage systems of high buildings. But it has more than 10 years history in Japan and South Korea
Usually these are two pipe lines in buildings , one pipeline is used for sewer water and one pipeline is used for airflow.
But if use spiral branch . it can replace two pipelines with only one pipeline in buildings. And it is available to both drainage and ventilate at same time.
And save more building space and save one pipeline and reduce more and more cost .including materials cost installation cost ect….