LIQUID PORTIONER Russian patent published in 1996 - IPC

FIELD: proportioning of liquids. SUBSTANCE: portioner has housing with liquid inlet branch pipe and liquid outlet branch pipe, shut-off fittings mounted in the branch pipes and drives of shut-off fittings and of control device, diaphragm position sensor with rigid center, air pipe with at least one additional air pipe and cover with adjusting rod with chain partially wound on it. Main air pipe, additional air pipe and diaphragm are hermetically brought in communication. EFFECT: enhanced reliability. 3 cl, 1 dwg