Shut-off fitting
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to a shut-off instrument (1) for a flow medium, in particular a slide valve instrument (2) designed for pressurisation on both sides with an instrument housing (3) forming a flow channel (6) and a slide valve chamber (11) and with a soft-sealing shut-off element (23) closing off the flow channel (6) and with a slide valve stem (16) which penetrates a seal arrangement (14) and/or bearing arrangement (15) in a housing neck extension (12) delimiting the slide valve chamber (11) and which is rotationally connected to a stem nut (19) coupled to the shut-off element (23) by a screw contact. The shut-of element (23) is designed to comprise more than one part and at least one external dimension (29) of the main body (28) is slightly smaller than a nominal width (9) of the flow channel (6) and seal elements (34) are arranged on opposite support surfaces (32) of the main body (28) via an engaged connection projecting over the external dimension (29) with a peripheral edge collar (35).
-
Citations
114 Claims
-
1-51. -51. (canceled)
- 52. Shut-off instrument (1) for a flow medium, in particular for a slide valve instrument (2) designed for pressurization on both sides with an instrument housing (3) forming a flow channel (6) and a slide valve chamber (11) and with a soft sealing, multipart shut-off element (23) for sealing the flow channel (6), and with a slide stem (16) which penetrates a seal arrangement (14) and/or bearing arrangement (15) in a housing neck extension (12) delimiting the slide valve chamber (11) and which is rotationally connected to a stem nut (19) coupled to the shut-off element (23) by means of threaded engagement, and with a main body (28) provided with sealing elements (34) with at least one external dimension (29) that is slightly smaller than a nominal width (9) of the flow channel (6), wherein on opposite support surfaces (32) of the disc shaped main boy (28) ribs (33) projecting over its surfaces are arranged to form a structure for the engaged arrangement of the sealing elements (34) provided with a mutually designed structure, and the sealing elements (34) on the main body (28) are secured by support discs (40) arranged on opposite end faces (39) of the seal elements (34) by means of securing means (41) traversing the support discs (40), seal elements (34) and the main body (28) in bores (42).
- 103. Shut-off element (23) for a shut-off instrument (1) for a flow medium with a disc-shaped main body (28) provided on opposite support surfaces (32) with soft seal sealing elements (34), and with a mounting bore (45) penetrating the main body for a slide valve stem (16), wherein on the support surfaces (32) ribs (33) projecting over their surfaces are arranged for forming a structure, for the engaged arrangement of the seal elements (34) provided with a compatible structure, and the seal elements (34) on the main body (28) are secured by support discs (40) arranged on opposite end faces (39) of the seal elements (34) by means of securing means (41) penetrating the support discs (40), seal elements (34) and the main body (28) in bores (42).
Specification