Osayizi abajwayelekile bepayipi lensimbi engagqwali (SS) bayahlukahluka ngokuya ngezindinganiso ezithile ezilandelwa amazwe ahlukene kanye nezimboni. Kodwa-ke, amanye osayizi abajwayelekile bepayipi lensimbi engagqwali afaka:- 1/8″ (3.175mm) OD kuya ku-12″ (304.8mm) OD- 0.035″ (0.889mm) ubukhulu bodonga kuya ku-2″ (50.8mm) ubukhulu bodonga – Ubude obujwayelekile buvame ukuba ngamafidi angu-20 (6.096 m) kuya ku-24 feet (7.315 m) Kuyafaneleka ukuqaphela ukuthi lawa masayizi ayizibonelo nje zosayizi wamapayipi ensimbi engagqwali asetshenziswa njalo, futhi izimboni noma abahlinzeki abahlukene banganikeza osayizi abaguquguqukayo noma abangokwezifiso ngokuya ngezidingo ezithile.