Imperial thread nut fitting BSPP – hose nut – DKRF nut fitting according the DIN, DKR(F) – thread BSPP (Flat seal) – this fitting is similar to DKR except sealing point.
BSP Fitting nut is based on the thread BSPP – British Standard Pipe (BSP)
British Standard Pipe (BSPP) – sometimes called as Whitworth thread, where sealing is made flat face of the fitting.
To be more specyfic that fittings is recognized as thred BSPP without sealing on 60° nest, instead we use flat seat ready to use gasket (eg. rubber gasket) – according the German DIN standard it is called as DKRF.
DKRF – AGR – thread BSPP (Parallel thread – sealing on flat face nest )
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