756879 – SIGHT GLASS DIN BRONZE THREAD, DOUBLE WINDOW #628 1-1/2″

IMPA 756879 – SIGHT GLASS DIN BRONZE THREAD, DOUBLE WINDOW #628 1-1/2″ – The small sizes are generally used to check the operation of the steam traps. For checking the liquid flow in open systems as well as a possible discolouring of liquids in open and closed systems (such as lubricating oil).