Spherical sealed sluice valve

The utility model relates to a gate valve structure, particularly a gate valve structure sealed by spherical surfaces of double gate plates. The utility model comprises a valve body, an adjusting backing ring, a gate plate, a wedge-shaped conical body, a spacing disc, a valve rod, a valve cap, a sup...

Full description

Saved in:
Bibliographic Details
Main Author XIANCHUN DAI
Format Patent
LanguageEnglish
Published 20.09.2006
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
Online AccessGet full text

Cover

More Information
Summary:The utility model relates to a gate valve structure, particularly a gate valve structure sealed by spherical surfaces of double gate plates. The utility model comprises a valve body, an adjusting backing ring, a gate plate, a wedge-shaped conical body, a spacing disc, a valve rod, a valve cap, a supporter, a guiding mechanism and a handwheel. The utility model is characterized in that the sealing spherical surface of the inwards concave valve seat, which has the same oblique angle with the wedge-shaped conical body, is tightly attached to the outwards convex sealing spherical surface of the spherical surface gate plate, which is completely parallel and the valve does not completely have the friction loss of the sealing surfaces in the opening and closing process. Thereby, the service life of the valve can be extended, and the utility model has the advantages of two-way bearing performance, two-way seal, simple and compact structure, little opening and closing torque and flexible closing.
Bibliography:Application Number: CN2005242300U