Cast iron pipes differ in durability and are used in systems of heating, water supply and sewerage. Cast iron material traditional to what there are reasons: it is rather cheap, rather reliable why it continues to remain alternative to pipes from high-quality steel or metalpolymers.
The nomenclature of pipes includes three types of the amount of conditional pass - 50, 100, 150 mm,shaped parts to them are intended for systems of plumbing of buildings.
Are made of gray cast iron with flexible graphite. Have a corrosion-resistant coating on the basis of bitumens with a softening temperature not below 60 °C. Are tested on tightness with a hydraulic pressure not less than 0,1 MPas.
The nomenclature of shaped parts consists from more than 50 names: