Characteristics of Disc Valves of High-Lift Safety-Valve Type : Experimental Research on Disc Valves, 4th Report

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概要

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• The characteristics of flat-seated valves provided with guide cylinders as used in some types of safety valve are treated in this paper. Discharging water through a valve (39 mm in diam.) under a constant head of about 2 meters, either into the air, or into the vessel filled with water, we measured the discharge and lifting force for each valve lift, thus observing the performance of the guide cylinder. In the next place, to eliminate the effect of the cylinder edge, we kept the guide cylinder always a little higher than the valve, while the water was issued into the air. Under these conditions we measured the discharge and the lifting force as well as the angle of jet for each of the flat-seated valves of nine kinds, widely differing in diameter ratios. The relations between the quantities thus obtained were made clear by the use of the momentum equation.

• 一般社団法人日本機械学会の論文

著者

• Kawakami Kosaku

  Waseda University

• OKI Iwao

  Waseda University

関連論文

• Characteristics of Disc Valves in Angle-Valve Type Chambers : Experimental Research on Disc Valves, 5th Report
• Experimental Research on Disc Valves : 7 th Report, Experimental Formulae for Discharge and Lifting-Force of Flat-seated Valve
• Some Considerations on the Characteristics of Disc Valves as Disclosed by Our Experiments : Experimental Research on Disc Valves, 6 th Report
• Characteristics of Disc Valves of High-Lift Safety-Valve Type : Experimental Research on Disc Valves, 4th Report
• Influence of Effective Head on the Characteristics of Flat-Seated Disc Valve : 9th Report, Experimental Research on Disc Valves
• Characteristics of Flat-Seated Valves with Broader Seat-Face : 8 th Report, Experimental Research on Disc Valve

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