I-valve yohlobo lwe-U iyiphethini ye-Wafer enama-flange. Izimbobo zokulungisa zenziwa ku-flange ngokwezinga elijwayelekile, ukulungiswa okulula ngesikhathi sokufakwa.Ibholithi yokuphuma noma ibholithi yohlangothi olulodwa esetshenzisiwe. Ukushintshwa okulula nokugcinwa.