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Foundation sphere 20T Foundation sphere 17T Foundation sphere 15T
 
 
 

 
 

 

 
  This is especially good for construction in narrow streets, where the compact machinery is essential. The light weight manholes that overcome the limit of earth pressure, with consideration for floating power of compact excavator, is complying with KS4012. It was designed to have more stable and durable combination by widening the gate of assembly parts by 30m/m more than walls, to complement the unstable form by thin walls when assembling lower sphere, vertical sphere, and upper sphere. Adding to this, the assembly form of insert fixed bolts, resolves leaning phenomena. Also it has an excellent effect to stop the inflow of leachate.
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* Custom production for measures not mentioned
Division Lower sphere Vertical sphere Upper sphere
Inner diameter
(mm)		 Height
(H)		 Thickness
(T)		 Inner diameter
(mm)		 Height
(H)		 Thickness
(T)		 Inner diameter
(mm)		 Height
(H)		 Thickness
(T)
Small size 300 600~1000 150       300 200~500 150
500 600~1000 150       500 200~1000 150
600 600~1000 150~200       600 200~1000 150~200
700 600~1000 150~200       700 200~1000 150~200
No.1 900 500~1000 150~250 900 500~1000 150~250 900 0~1000 150~250
No.2 1200 1200~1500 150~300 1200 500~1000 150~300 1200 0~1000 150~300
No.3 1500 1500~1800 150~300 1500 500~1000 150~300 1500 0~1000 150~300
No.4 1800 1800~2000 150~300 1800 500~1000 150~300 1800 0~1000 150~300
No.5 2100 2000 150~300 2100 500~1000 150~300 2100 0~1000 150~300
 
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