HHE 2022-2023

879 Sixteen MALLEABLE CAST IRON FITTINGS TECHNICAL DATA Malleable cast iron fittings in black or hot dip galvanised finish, covered with a preservative for temporary prevention of rust film. Used in threaded pipe joints, such as water supply, gas, steam, central heating, sprinkler system networks, etc., transporting non-corrosive liquids and gases. RANGE OF DIMENSIONS 1/4 to 4 inches. MANUFACTURING Manufactured according to EN10242 and ISO 49, construction symbol “A”. Produced in Poland. MATERIAL Fittings: Whiteheart malleable EN-GJMW-400-5 cast iron, according to EN 1562, equivalent to W 40-05, according to ISO 5922. THREADS Threads: according to ISO 7/1 – R tapered external threads, internal cylindrical Rp threads and according to ISO 228/1 – G connecting threads. SURFACE / ZINC PLATING Fittings can be supplied according to order: with black or galvanised surface. According to EN 10242, zinc coating weight relative to the surface exceeds 500 gr/m 2 , which corresponds to an average layer thickness of 70 um. Both black and galvanised surfaces are protected against corrosion. Corrosion protection substance does not contain polycyclic aromatic hydrocarbons. OPERATING PRESSURE 2.5 MPa / 25 bar / at the temperature from -20ºC to 120ºC. 2.0 MPa / 20 bar / at the temperature of 300ºC. LEAK TEST According to EN 10242, each fitting is subjected to a leak test at air pressure of at least 0.5 MPa / 5 bar which is equivalent to a minimum hydrostatic pressure of 2.0 MPa / 20 bar. WHITEHEART MALLEABLE IRON EE brand pipe fittings are constructed from Whiteheart malleable iron. Whiteheart malleable iron has both good casting properties of cast iron and good mechanical properties of cast steel. Whiteheart malleable iron is stronger and has more plasticity than Blackheart malleable iron. It has a tensile strength of 350 – 450 Mpa (hardness of approximately 220 HB), whilst Blackheart cast iron has a tensile strength of just 300 – 350 Mpa (hardness of approximately 170 – 190 HB). It also benefits from good abrasion resistance, leak tightness, vibration damping and suffers from little thermal expansion. WORKING PRESSURE 25 bar @ -30°C to +120°C 20 bar @ +120°C to +300°C All threads adhere to ISO 7.1 – R tapered external threads, internal cylindrical Rp threads and acc. to ISO 228/1 – G connecting threads. Male threads are BSPT and female threads are BSPP. CERTIFICATION EE brand Whiteheart malleable iron pipe fittings are certified by DVGW to varify compliance for gas and water applications.