Impompo yegrisi yombane inyuswe ngokuthe nkqo ngoxinzelelo oluthile lwe-4.0MPA kwaye ine-valve yoncedo lwangaphakathi: ethintela impompo ye-pumprice esekwe kwi-pump. Ngokulayisha umsebenzi: Emva kwempompo ye-tyhurpice yokumisa, uxinzelelo lwe-oyile lwesekethe luyenziwa, okanye isetyenziswe ikakhulu kwitanki yeoyile yeoli. Abasasazi abaxhasayo:
