756902 – SIGHT GLASS DIN BRONZE FLANGED, DOUBLE WINDOW #636 20MM

IMPA 756902 – SIGHT GLASS DIN BRONZE FLANGED, DOUBLE WINDOW #636 20MM – 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).