HHE 2022-2023

896 Sixteen MALLEABLE IRON PIPE FITTINGS KEY FEATURES • Taper to taper thread joints ensure full engagement, eliminating localised stress on pipe or fitting, and offering a substantial pressure seal. • Design standard BS EN 10242 • Thread standard BS EN 10226-2 taper • UL approved for use on sprinkler systems • Kitemark approved by BSI CONFORMANCE OF CRANE FITTINGS Both malleable iron and steel fittings have been verified by the British Standards Institute (BSI) as conforming to BS EN 10242 and BS 143 & 1256, as appropriate, and as such are permitted to bear the British Standards Kitemark Logo - Kitemark Licence No. KM00382. Some small size fittings are manufactured in steel and will conform to BS EN 10241. PRESSURE / TEMPERATURE RATINGS BS 143 & 1256 states that fittings are for general purposes of the transmission of fluids within the pressure and temperature ranges as specified. The graph below shows the BS pressure temperature ratings. Crane malleable iron fittings are suitable for use at these new ratings with the exception of certain unions (please see note below graph), but such use is dependent on the suitability of the connecting pipe material, the threaded joint and any thread sealant used. Due consideration should also be given to any applicable codes of practice. Pressures stated are maximum non-shock gauge. 0 50 100 150 200 250 300 0 100 200 300 400 500 600 30 25 20 15 10 5 0 400 300 200 100 0 bar lbf/in 2 -20 °F °C SATURATED STEAM LINE 25 bar at -20 to 120°C* 20 bar at 300°C * Hot dip zinc coated (galvanised) fittings should not be used below -10°C (14°F). CRANE241 Flat seat unions are limited to 230°C maximum. CRANE271 and CRANE289 Female equal unions with spherical seat are limited to 208°C maximum. FINISH All malleable iron fittings are given an oil finish as protection against rust while in stock or during transit and after installation prior to plant commissioning. Finished fittings are free of any polycyclic aromatic hydrocarbons. PIPE THREADS The machined threads of Crane fittings are supplied to conform wit the gauging requirements of BS EN 10226-2. Threads on all fittings are chamfered to assist assembly and avoid ‘cross threading’. Female fittings have a chamber behind the thread permitting the male thread to be assembled without restriction of ‘bottoming’. TESTING Production testing: Meets requirements of BS EN 10242 or BS 143 and 1256 as applicable. Type testing: In addition to production testing, all pressure containing fittings are required by BS EN 10242, BS 143 & 1256 and ISO 49 to be designed to withstand specified design test pressures and to be type tested accordingly - 100 bar (1450 lbf/in2) for sizes 4 and smaller malleable iron fittings and 64 bar (928 lbf/in2) for sizes 5 and 6 malleable iron. Please note: * Only available in mild steel