This is heavy duty manhole top in compliance with EN124 D400 load class. It's hinged type and lockable to be anti-theft. There is a sealing gasket on the inside frame to prevent noise and can be custom-made to be watertight as necessary. As we have been making composite drain manhole covers for more than 13 years, lightweight design and stable high quality are our main advantages.
Main Features of hinged sewer cover and frame:
*Hinged and lightweight for one man operation.
*No scrap value and can be anti-theft.
*Anti-corrosion and non-conductive.
*Non-slip pattern on cover surface and lockable.
*A sealing gasket on the base to prevent noise.
*Available to any harsh weathers, working temperature -50℃ to 160℃.