Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
  • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
  • F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
  • F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
  • F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
  • F16K3/085—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates

Definitions

• the present invention is concerned with fluid flow control valves and particularly, but not exclusively, valves suitable for use with radiators of wet central heating systems.
• fluid flow control valve in which a movable valve element in the form of a rotatable spherical member, cone or sliding gate is employed.
• Exemplary valves of this type are disclosed in, for example, U.K. Specifications 1050428, 2084295, 2074697, 2084295 and 2121144. It is an object of the present invention to provide a compact, versatile and efficient fluid control valve.
• a fluid flow control valve comprising: a body formed with a cylindrical bore having an inlet port and an outlet port, a cylindrical valve member being a rotatable fit within said bore, the valve member having at least one aperture therethrough, at least one end of the or each aperture being eccentric, said one end being sealed against a face of the body or of a body member located with a close fit therein, said body or body member having at least one aperture therethrough, at least one end of the or each aperture in the body or body member being eccentric at said face and alignable, at one position of rotation of the valve member, with the aperture or one of the apertures in the valve member, and at another position of rotation the eccentric apertures of the valve member and of the body or of the body member being out of alignment, to inhibit passage of fluid through the valve.
• the or each aperture through the valve member is parallel to the bore axis and does not embrace said axis and furthermore the or each aperture through the body or body member is parallel to the bore axis and does not embrace said axis.
• the apertures through the body or body member are of the same size and shape.
• each aperture may be of quadrant shape with the apex towards the axis.
• an elastomeric seal is provided around the or each aperture at said face.
• an elastomeric seal is provided between the valve member and the body or body member at said face, the elastomeric seal being in the form of a peripheral ring and four spokes radiating thereto from the axis.
• the seal may be partly sunk in grooves formed in the valve member, the body or the body member.
• a part circumferential slot may be formed through the body, opposite a blind radial hole into the valve body, whereby a pin or rod may be inserted through the slot into the hole and moved along the slot to rotate the valve member about the axis.
• the valve according to the invention is particularly suitable for use as an auxiliary valve in a central heating radiator valve; in this case, the valve according to the invention is preferably such that the valve member can be rotated between a first position, in which liquid communication is permitted between the main valve and the radiator, and a second position in which such liquid communication is prevented.
• the use of such an auxiliary valve can permit the radiator to be removed without draining.
• the valve according to the invention may be used for purposes such as oil or gas pipelines or the like.
• Figure 1 is a schematic sectional view of a first embodiment of valve according to the invention.
• FIG. 2 is an exploded view of certain parts of the valve of Figure 1;
• Figure 3 is an exploded view showing alternatives to the components illustrated in the embodiment of Figure 2.
• a generally cylindrical valve body 1 is provided with an internal stepped surface 2 for locating an O-ring 3.
• Fitting snugly within the internal bore of the valve body 1 is a disc 4 provided with an eccentric throughbore 5 and a blind bore 6 in the rim thereof.
• Throughbore 5 is such that however it is rotated within valve body 1, it always permits fluid communication therethrough.
• Blind bore 6 is such that it can be reached through slot 7 in valve body 1, such that an appropriate tool such as a pin or rod (not shown) can be inserted through the slot 7 into the blind bore 6 to permit disc 4 to be rotated within the valve body.
• valve body 1 Also snugly fitting within valve body 1 is a cylindrical non-rotary body member in the form of a seal seating member 8 having an eccentric throughbore 9, which is arranged such that throughbore 9 and throughbore 5 are in juxtaposition when the valve is in the open position (in the orientation shown in Figure 1).
• the disc 4 can therefore be rotated to selectively either permit or prevent fluid communication via throughbore 5.
• seal seating member 8 has a peripheral groove 10 which defines a generally circular land 11 around the end of throughbore 9, and a crescent-shaped land 12 spaced therefrom.
• the latter has an arcuate edge 13 generally parallel to the edge of land 11, so as to define an arcuate groove 14.
• sealing ring 15 Located between seal seating member 8 and disc 4 is a sealing ring 15 comprising a first annulus 16 and, integral therewith, a second larger diameter annulus 17 which is such that annulus 16 is eccentrically located and arranged to seat around land 11, with the portion thereof which is not shared with annulus 17 seated in arcuate groove 14.
• the sealing ring 15 is such that leakage from throughbore 9 is substantially prevented, regardless of the position of disc 4.
• disc 4a has a pair of quadrant shaped orifices 18,19 separated by a pair of flat lands 20,21; seal seating member 8a also has a pair of quadrant shaped orifices 22,23 arranged for alignment with orifices 18,19.
• annular elastomeric sealing ring 24 Seated between disc 4a and seal seating member 8a is an annular elastomeric sealing ring 24 which. is subdivided into a series of four quadrants 25,26,27,28 by integral radial spokes 29.
• the valve according to the invention is particularly suitable for use in installations where both sides of the valve are under fluid pressure, such, as wet central heating systems or other plumbing installations.
• the upper end of the valve body is formed with a part-spherical seating 30, for jointing to the next component.
• the lower end of the valve body has a standard thread, on which a nut on the next lower component can be screwed.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Taps Or Cocks (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

ID=26293207

Family Applications (1)

Country Status (3)

Families Citing this family (1)

Family Cites Families (6)

• 1988
  • 1988-12-16 WO PCT/GB1988/001130 patent/WO1989005937A1/en not_active Application Discontinuation
  • 1988-12-16 EP EP19890901137 patent/EP0419481A1/en not_active Withdrawn
• 1990
  • 1990-06-18 DK DK148190A patent/DK148190A/da not_active IP Right Cessation

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events