CU TR and U Stamped Air Receivers: 10 off ASME VIII Div.1 U STAMP and CU TR 032 / 2013 Cat.4 Certified Air Receivers. With a volume of 912 Litre they are from Stainless Steel 316L for use by TCO (Tengiz Chevroil) – Kazakhstan. Supplied to meet project specifications requiring full NDT: 100% radiography, 100% DPI, 100% Ultrasonic testing, 100% PMI & Production test plates. The design also considers seismic, snow and wind loadings. The vessels were completed with a pickle and passivated surface finish.