bsp meaning in oil and gas

Pipe threads / Rør gjenger- sylinderiske. I tabeller mest omtalt som "G", f.eks. 1/4-19 G. <p> FASTENING PIPE THREADS - Designated "G" to AS 1722 Part 2 (Formerly BSPF) are based on ISO 228/1, where pressure type joints are NOT made on the threads. These threads are intended for the mechanical assembly of the component parts of fittings, cocks, valves, accessories etc. If these assemblies must be pressure tight this will be achieved by compressing two surfaces other than the thread and the use of jointing medium if necessary e.g. gaskets on flanges or '0' rings. <p> <p> Both male and female threads are always parallel.<p> <p> For organization-specific threads one class of tolerance is provided "G".<p> For external threads two classes of tolerance on the pitch diameter are provided, class "GB" is used for general applications and will be supplied where no tolerance class is stated."GA" tolerance class is half that of "GB" and is used for special applications.