Angle Valve Research Articles

On the Operation Performances of Saunder Valve and Angle Valve in pH Automatic Control

On the Operation Performances of Saunder Valve and Angle Valve in pH Automatic Control

Experimental Research on Disc Valve (6th Report)

In the valve box of angle valve type described in the 5th Report, the diameter of the side exit hole was changed to 30.4 mm and the inside height of the valve-chamber to 45 mm. Flat-seated valves of five kinds and conical-seated valves of two kinds, which varied in diameter, were in turn combined with valve-chambers of six kinds varying in inside diameter, and each of these combinations was tested with water under a head of about two meters. Center height of the side exit-hole, radius of the corner rounding of the exit hole and inside height of the chamber were also varied. Experimental results thus obtained were compared with those from the valve-chamber of vertical cylindrical type and those in the case of free discharge of water into the air. Finally we have described the results of wider considerations on the valve characteristics and the matters to be attended in valve designing.

Experimental Research on Disc Valve (5th Report)

I. We have more widely than ever studied the effects of valve-chamber size on the characteristics of flat-seated and conical-seated disc valves placed above the valve-seat in a valve chamber of vertical cylindrical type. Utilizing all the experimental results published in our reports (No. 1∼4), the characteristics of the valves concerned were illustrated by groups of curves, in which the diameter ratio of the valve and valve-chamber, that is, d/D ranges from o to 1, where D/d=∞ being for the case of free discharge into the air (Report No. 4) and D/d=1 for the case where discharge Q=0. II. We have prepared a valve box of the angle valve type with an inside diameter of 100 mm and inside height of 63 mm, provided with an exit hole of 50 mm in diameter on the side. Discharging water under a head of about two meters, we investigated the effects of diameter ratio of valve and valve-chamber on the characteristics of flat-seated and conical-seated valves.

PRESSURE DROP TESTS ON GLOBE AND ANGLE VALVES WITH OIL AND WATER FLOW

The data for this paper was originally obtained for two theses: One written in 1937 by Milton Karr and Harry D. Crapon, and the other in 1938 by Loring W. Schutz and Archibald M. Main, Jr., for the degree of Bachelor of Science in Naval Architecture and Marine Engineering at the Massachusetts Institute of Technology.The paper is published for several reasons: First, it illustrates the thorough and workmanlike method of doing a job that results from contemporary technical schooling. Again, it emphasizes the complex problem which is involved in warship construction, even in the disposition of a small brass valve. The data itself increases that already available for solving the complex problem.