BALL VALVE

PROBLEM TO BE SOLVED: To provide a ball valve enabling the inspection of the inside thereof and capable of assuring safe inspection operations. SOLUTION: This ball valve 1 comprises a valve box 2 having a flow passage containing a fluid inflow port 21a and a fluid outflow port 21b, a valve seat 3 fo...

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Bibliographische Detailangaben
Hauptverfasser:	NAKANISHI HIROYUKI, KAZAMA YOICHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a ball valve enabling the inspection of the inside thereof and capable of assuring safe inspection operations. SOLUTION: This ball valve 1 comprises a valve box 2 having a flow passage containing a fluid inflow port 21a and a fluid outflow port 21b, a valve seat 3 formed at the outflow port 21b, a valve element 4 having a disk part 41 in contact with the valve seat 3, the disk part 41 having a centerline Y eccentric to a straightline S passing the center axis of the flow passage, a valve stem 5 rotating a valve element 4, an air cylinder 6 driving the valve stem 5, and an inspection window 20 formed at the outer periphery of the valve box 2. COPYRIGHT: (C)2006,JPO&NCIPI