Malleable / Black Iron, EN1256, Cap - Round, Fig.301

The high quality of these castings and the precision finish ensure these fittings comply with ISO and EN (European Norms) and BS standards for Malleable Iron Pipe Fittings.

• Full-bore banded-reinforcement (around female outlets), conforms to BS 143 & BS 1256:1986 which is equivalent to ISO 49 and DIN 2950. ISO 49:1983 is the international standard for “Malleable Cast Iron fittings threaded to ISO 7/1”.
• Internal and external jointing threads conforming to BS 21 (ISO R7 /1). The internal thread is cylindrical (parallel) and the external thread is tapered, in ratio of 1:16.
• Full clear bore and a high factor of safety over stated working pressures.
• Dimensions comply with dimensions and tolerances stated in BS 143 & BS 1256 and ISO 49 and EN 10242.
• Manufactured from ASTM A-197 and ASTM A47
• Working Pressure;
•   25 Bar at -30°c to +120°c
•   20 Bar at +120°c to +300°c