Automatic balancing valve
AssigneeFratelli Pettinaroli S.p.A.
InventorsGiulio Pettinaroli, Liborio Spagnolo
Life of this patent
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Abstract
An automatic balancing valve is disclosed which is equipped with choking means that can be operated manually with a ring nut placed below the actuating member of the shutter and aligned axially therewith. Advantageously, the dimensions of the ring nut are larger in plan view compared to the plan view dimensions of the actuating member so as to allow its rotation without removing the actuating member.
Claims9
An automatic balancing valve comprising a valve body having an inlet opening and an outlet opening, at least one shutter that can be moved axially under the force applied by an actuating member, adjustment means to automatically change the fluid flow rate in the valve according to the pressure difference between said inlet opening and said outlet opening and chocking means to set a maximum flow rate through said valve, said chocking means being operated manually through a ring nut placed below said actuating member and aligned axially therewith, characterized in that the dimensions of said ring nut are larger in the plan view compared to the plan view dimensions of said actuating member so as to allow the rotation of said ring nut without removing said actuating member.
Dependencies are inferred from the claim text.