400 Sil Ductile iron Locking arms B125

Complete lightweight cover in ductile iron, without screws. Strainer with locking arms.

Type of well: Concrete
Diameter of well: Ø400 mm
Type of cover: Strainer
Locking: Yes
Locking type: Locking arms
Load class: B125
Material: Ductile iron
Weight/pc: 19 kg
Flow area: 48 cm²

FIXED COVERINGS
Fixed coverings are set/placed directly on the manhole/pass part. The coating is applied around the entire cover and then compacted well. When the installation is complete, the cover must “lie” 5-lOmm below the other existing road.

Tips/Advice
Fixed coverings are only recommended to be installed in low traffic areas as fixed coverings cannot absorb settlements.

To increase the life of the cover/frame
Ensure that there is no gravel/stone between the cover and frame. Gravel/stone damages the cover and can cause the cover to start “wobbling” in the frame, which creates noise when the cover is operated. Any rubber seals/damper rings on the cover are checked to ensure that they are whole and clean and can then be lubricated with lubricant/grease for easier installation in the frame.