FIELD: oil production. SUBSTANCE: device measuring production rate of well has gas separator with float coupled to gate in gas line hydraulically coupled to gas and liquid lines, flowmeter, spring-loaded valve with rod fitted with washer made of magnetic material and positioned between ring magnets mounted in magnetic circuits made fast to body and interacting with washer while rod travels, valve seat, throttle mounted in flow section of valve seat and made fast to the latter. EFFECT: enhanced functional reliability of device. 1 dwg
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