RTJ
3 in-depth engineering guides on RTJ — specification, selection, testing and procurement.
Everything on RTJ
Vajra's engineering team has published 3 technical guides covering RTJ for industrial valve selection, specification, testing and procurement. Browse the full set below.
Raised Face vs Flat Face vs Ring Type Joint: Valve Flange Selection Guide | ASME B16.5
Choosing the wrong flange face type - RF, FF, or RTJ - can cause leaks or damage to connecting equipment. This guide explains when each face type is appropriate, per ASME B16.5 and ASME B16.20.
Valve End Connection Types: Flanged, BW, SW, Threaded & Wafer
Valve end connection selection determines installation compatibility, pressure capability, and maintenance access. This guide covers all valve end connection types - RF and RTJ flange facing, ASME B16.5 vs B16.47 large-bore flanges, butt weld and socket weld, NPT and BSP threaded, and wafer vs lug vs double-flanged butterfly valves.
Piping Class and Valve Selection: ASME Class 150 to 2500 Explained
Piping class - ASME Class 150 through 2500 - is the foundation of every industrial valve specification. The wrong class means the valve cannot handle the process pressure-temperature conditions. This guide explains ASME pressure class rating methodology, P-T rating tables, when RTJ replaces RF at Class 600, and the body material selection matrix by class.
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