Balancing valve for adjusting the distribution of fluids in multiple pipes
AssigneeWatts Industries Italia S.R.L.
InventorAlfredo Marco Cucciniello
Life of this patent
Estimating the term…
Abstract
A balancing valve for adjusting the flow rate of a fluid flowing inside a pipe from upstream to downstream in a longitudinal direction of flow. The balancing valve includes: a check valve and a tubular element simulating a Venturi tube, said valve and element being coaxially connected, respectively, from upstream to downstream in the longitudinal direction of flow of the fluid; a device for detecting the difference in pressure which occurs inside the valve; a valve for adjusting the flow rate of the fluid which flows inside the pipe; wherein: the detection device is arranged between the inside of a first upstream chamber of the check valve and the inside of a central cylindrical portion of the tubular element.
Claims12
A balancing valve for adjusting a flow rate of a liquid fluid flowing inside a pipe from upstream to downstream in a longitudinal direction of flow, the balancing valve comprising:
- a check valve and a tubular element configured to simulate a Venturi tube, said check valve and said tubular element being coaxially connected, respectively, from upstream to downstream in the longitudinal direction of flow of the liquid fluid;
- a device configured to detect a differential pressure, which occurs inside the balancing valve between a first inside of a first chamber upstream of the check valve and communicating therewith and a second inside of a central cylindrical portion of the tubular element, wherein the device is configured to measure the differential pressure that is a combination of a head loss occurring across the check valve and of a variation in pressure referable to the tubular element simulating a Venturi tube, whereby at low flow rates the differential pressure is largely created by the check valve and at high flow rates the differential pressure is largely created by the simulated Venturi tube;
- and
- a valve configured to adjust the flow rate of the liquid fluid which flows inside the pipe.
A balancing valve for adjusting a flow rate of a liquid fluid flowing inside a pipe from upstream to downstream in a longitudinal direction of flow, the balancing valve comprising:
- a check valve;
- a tubular element coaxially connected downstream to the check valve along the longitudinal direction of flow of the liquid fluid, the tubular element having a central cylindrical portion of a relatively smaller cross-section for simulating a Venturi tube;
- a detection device configured to detect a differential pressure between inside a first chamber upstream of the check valve and the central cylindrical portion, wherein the detection device is configured to measure the differential pressure largely created by a head loss occurring across the check valve at low flow rates and, at high flow rates, largely created by a variation in pressure across to the tubular element simulating the Venturi tube;
- and
- a valve for adjusting the flow rate of the liquid fluid which flows inside the pipe.
Dependencies are inferred from the claim text.