FIELD: valves.
SUBSTANCE: present invention relates to valves. Preferably, the valve is a controllable control valve, providing variability between the maximum flow and the absence of a flow at a differential pressure in the valve (i.e., a change in the flow rate of the fluid flowing through the valve), for example, a substantially continuous change in flow resistance between the maximum and minimum. Controlled valve comprising: external housing; input element of the outer shell defining the inlet; output element of the outer housing defining the outlet; and an inner housing element within the outer housing for receiving the controlled throttle to restrict fluid flow, flowing through the fluid passageway through the valve. Inner body element is separate from at least one of the input and output elements.
EFFECT: in addition, the valve is balanced by pressure.
24 cl, 9 dwg
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