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A valve disc and valve stem assembly in a butterfly valve 2011-12-22
As for a valve disc and valve stem assembly in a butterfly valve, two types of arrangements are known; one in which the valve disc is provided with a single diametrically extending through-hole whose
Butterfly valves for mounting in the smooth connecting-pieces of pipes 2011-12-21
In the present state of the known art, numerous types of butterfly valves exist which are intended to be connected to piping by flanges, screwthreads or welding. But the recent development of pipes ma
As an on-off valve for the engine coolant supply to an automobile heater 2011-12-20
Valves for such an application must be very inexpensive to manufacture and assemble, must operate to provide a reliable seal in the adverse environment found in the engine compartment of an automobile
An embodiment of a butterfly valve 2011-12-19
In an advantageous embodiment of a butterfly valve the seat of the valve has a seating surface defining a section of an oblique cone having its apex lying in the wall of the cylindrical housing, a sec
Butterfly valve with a wall-mounted 2011-12-16
An improved butterfly valve of the type wherein a disc mounted for rotation about a nondiametric axis and having a continuously convergent circumferential sealing surface which cooperates with a wall-
Butterfly valve with an internal cylindrical bore 2011-12-14
A butterfly valve comprising a body having an internal cylindrical bore with two radial coaxial passages diametrically opposed with respect to said bore, a butterfly including a spherical cap section
The art of butterfly valves 2011-12-13
The prior art to which the invention is directed includes the art of butterfly valves being of a type in which a usually circular vane or disk is rotatable in the valve passage between an open and clo
A disk-like valve 2011-12-12
The present invention relates to a butterfly valve in which a disk-like valve member rotates about a valve stem acting as a shaft.
