Screw type valve with ceramic disks

Details Screw type valve with ceramic disks Screw type valve with ceramic disks

1990-10-30

1992-03-10

Walton, George L.

Fluid handling

Removable valve head and seat unit

Threaded into valve casing

13762531, 251208, 251288, 251304, F16K 302, F16K 2500

Patent

active

050942581

ABSTRACT:
A screw type valve for the delivery of water in hydrosanitary installations with superimposed ceramic sealing disks, a fixed one (13) and a rotating one (15). The valve also comprises a sleeve (11) fitted into an externally threaded ring (10) and with a bottom ring (12) bearing the fixed ceramic disk (13), a driving spindle (14) with said movable ceramic disk (15) on its bottom rotating inside said sleeve, while on its top end a control handle is fitted, said sleeve, ring and spindle being made of a plastic material, while the threaded ring is made of metal to allow a safe installation of the valve.

REFERENCES:
patent: 3780758 (1973-12-01), De Vries
patent: 3807455 (1974-04-01), Farrell
patent: 3831621 (1974-08-01), Anthony et al.
patent: 3834416 (1974-09-01), Parkison
patent: 4005728 (1977-02-01), Thorp
patent: 4331176 (1982-05-01), Parkison
patent: 4651770 (1987-03-01), Denham et al.
patent: 4821765 (1989-04-01), Iqbal et al.
patent: 4896693 (1990-01-01), Rodriguez
patent: 4899982 (1990-02-01), Lange

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