| Chinthu | Chipangizo | Chipatso | Kuchuluka |
| 1 | Mgwirizano | U-pvc | 1 |
| 2 | Cholumikizira | U-pvc | 1 |
| 3 | O-mphete | EpdM · BPM | 1 |
| 4 | Kudumpha | Zitsulo zopanda kanthu | 1 |
| 5 | Pisitoni | U-pvc | 1 |
| 6 | Gasket | EpdM · BPM | 1 |
| 7 | Thupi | U-pvc | 1 |
| Kukula | Nphtt | Bypt | BS | Kana | Tsabola | Jis | |||
| Thd./in | d1 | d1 | d1 | d1 | D | L | H | ||
| 25mm (1 ") | 11.5 | 11 | 34 | 33.4 | 32 | 32 | 45.4 | Wakwanitsa | 69.2 |
| 40mm (1½ ") | 11.5 | 11 | 48 | 48.25 | 50 | 48 | 61 | 172.2 | 89 |
| 50mm (2 ") | 11.5 | 11 | 60 | 60.3 | 63 | 60 | 75 | 162.5 | 96.7 |
Kufotokozera mwatsatanetsatane za cheke:
Chongani mavuvu ndi ma valve okha, omwe amadziwikanso monga mavavu, mavavu amodzi, mavavu obwezeretsedwa kapena mavaleni. Kusuntha kwa disc kumagawidwa kuti mukweze mtundu wa mtundu ndi mtundu. Valavu yokweza ndi yofanana ndi valve wotsekera, koma alibe tsinde la valavu yomwe imayendetsa disc. Ma sing'anga amayenda kuchokera kumapeto kwa itlet (mbali yotsika) ndikutuluka kuchokera kumapeto (kumtunda). Kukopani kwa itlet kuli kwakukulu kuposa kuchuluka kwa kulemera kwa disc ndi kuwaza kwake, valavu imatsegulidwa. M'malo mwake, valavu imatsekedwa pomwe sing'anga ikubwerera. Vesive Check Vatve ali ndi disc yomwe imakonda ndipo imatha kuzungulira mozungulira axis, ndipo mfundo yogwira ntchito ndi yofanana ndi valavu yokweza. Valani valavu imagwiritsidwa ntchito ngati valavu yopumulira yopondaponda madzi. Kuphatikiza kwa cheke valavu ndi kuyimitsa valavu kumatha kusewera gawo la kudzipatula. Zovuta ndikuti kukana ndi kwakukulu ndipo kungokonzekera sikuli bwino mukatsekedwa.