a) E ji ígwè siri ike mee ya, a na-agba ya mmiri n'elu site na iji mmiri ọkụ dị elu, ọ naghịkwa agba nchara.
b) Mkpọchi nhazi otu ibe nwere ike ịtụgharị valvụ bọọlụ n'ọnọdụ ya n'ụzọ anọ.
c) Ejiri ya na nha valvụ bọọlụ site na 6.35mm (1/4") ruo 25mm (1"), dayameta oghere bụ 3/8".
| Nkebi nke | Nkọwa |
| SBVL01 | Nha: 84mm × 60mm, dayameta oghere: 9.8mm |
| SBVL02 | Nha: 155mm × 110mm, dayameta oghere: 9.8mm |
| SBVL02-2 | Nha: 155mm × 110mm, dayameta oghere: 7.5mm |

