Flow loos ne ne throttling loss no ne nneɛma titiriw a ɛma solenoid valve no yera bere a nsu no sen fa valve no mu no. Nsu a ɛtwetwe a ɛwɔ solenoid directional valve no mu no kyerɛ sɛ nsu a ɛretu fi nhyɛso kɛse dan no mu kɔ nhyɛso a ɛba fam no mu esiane adwumayɛ tebea nti ne ne gyinabea nso .
