CORPO PER SARACINESCA

A forged casing for a gate valve comprises a top casing part 10, which, in the completed valve, receives the means for actuating the valve wedge, and, welded to part 10, a bottom casing part comprising two symmetrical half shells 1 and 2 welded together along a weld seam 3 in the plane of the gate s...

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Bibliographic Details
Main Author GRIMM FRITZ
Format Patent
LanguageItalian
Published 21.05.1986
Edition4
Subjects
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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Summary:A forged casing for a gate valve comprises a top casing part 10, which, in the completed valve, receives the means for actuating the valve wedge, and, welded to part 10, a bottom casing part comprising two symmetrical half shells 1 and 2 welded together along a weld seam 3 in the plane of the gate spindle. The half shells have seating surfaces 4, 5, and spigots 8, 9, formed therein by forging. The weld seam 3 lies on the circumference of a circle about an axis of the valve. The half shells 1 and 2 have integral formations affording, in the finished valve, opposing surfaces between which gate-guiding grooves 12 are defined. The boundaries of the surfaces 6, 7 at the base of the grooves lie on circular arcs about the same axis as that about which is described the arc on which the weld seam 3 lies.
Bibliography:Application Number: IT19790028063