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Product information "Manhole test plugs with bypass 600 - 850 mm"
Manhole test plugs are short test plugs used for testing manholes.They have a bypass system and are made from SBR+NR mixed rubber and strong fabrics.
Manhole test plugs are able to run between -30°C and + 70°C. They are tested at 1.3 times the working pressure and have ultrahigh bursting pressure. Various sizes for pipe diameters from 600 - 850 mm are available from us.