Gutters split from tubes
Split basalt gutters for sewerage systems
are used e.g. as bottom gutters of well bottoms or as lining of lines in profile 120  or 180°. 
These products are made by splitting of centrifugal cast tubes of length 0.5 m. During the production process the tubes are split commonly to 120° or 180° by means of heating resistance wire.
These products are made by splitting of centrifugal cast tubes of length 0.5 m. During the production process the tubes are split commonly to 120° or 180° by means of heating resistance wire.
Tolerances of cracked gutters according to catalogue sheet E-01 – Spun cast cylinders, with exception for cracked surface in which deviation from ideal level is ± 10 mm
| Z | S | 
| 150 | 20 | 
| 204 | 20 | 
| 254 | 20 | 
| 303 | 20 | 
| 356 | 20 | 
| 400 | 20 | 
| 456 | 20 | 
| 500 | 23 | 
| 600 | 23 | 
| 610 | 23 | 
