a) E entsoe ka tšepe e thatafetseng, e phekoloang holim'a metsi ka ho fafatsa mocheso o phahameng, e sa senyeheng mafome.
b) Linotlolo tsa moralo oa karolo e le 'ngoe li ka fetola li-valve tsa bolo ka kotara ha li le sebakeng se sa sebetseng.
c) E sebelisoa boholo ba li-valve tsa bolo ho tloha ho 6.35mm (1/4”) ho isa ho 25mm (1”), bophara ba lesoba ke 3/8”.
| Karolo ea Karolo. | Tlhaloso |
| SBVL01 | Boholo: 84mm×60mm, bophara ba lesoba: 9.8mm |
| SBVL02 | Boholo: 155mm×110mm, bophara ba lesoba: 9.8mm |
| SBVL02-2 | Boholo: 155mm×110mm, bophara ba lesoba: 7.5mm |

