GB2198214A - Flow restriction device for a tap - Google Patents
Flow restriction device for a tap Download PDFInfo
- Publication number
- GB2198214A GB2198214A GB08628445A GB8628445A GB2198214A GB 2198214 A GB2198214 A GB 2198214A GB 08628445 A GB08628445 A GB 08628445A GB 8628445 A GB8628445 A GB 8628445A GB 2198214 A GB2198214 A GB 2198214A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- cup
- flow
- restrictor
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 229910001369 Brass Inorganic materials 0.000 claims 1
- 239000004677 Nylon Substances 0.000 claims 1
- 239000010951 brass Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 229920001778 nylon Polymers 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/08—Means in valves for absorbing fluid energy for decreasing pressure or noise level and having a throttling member separate from the closure member, e.g. screens, slots, labyrinths
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
A flow restriction device comprises a cup-shaped member 11 locatable on the valve seat 12 of a tap body 10, which cup-shaped member accommodates a valve member 14 supporting a replaceable valve washer 15. The valve member 14 has a downwardly extending stem 16 which is engageable in an inlet opening 17 in the base of the cup-shaped member 11, the relative sizes of the valve stem 16 and the aperture 17 defining the flow cross section of the valve inlet opening. A plurality of lateral outlet apertures are provided in the side walls of the restrictor member 11. In the off position of the valve member, the washer 15 is pressed against the inlet opening 17 to shut off liquid flow, whilst when the tap is opened, the valve member is lifted clear of the inlet opening 17 and the outlet openings 18 to allow flow through the restrictor member at a predetermined rate in accordance with the flow cross section of the inlet opening and the flow cross section and number of outlet openings. <IMAGE>
Description
WLuS RESTrICTIC'\J DEDI5L FCR A TAP
The present invention relates to a flow restriction device for domestic taps for reducing the flow of water through the tap and effecting economies on the use of taps, particularly in public buildings, to thereby reduce wastage of water.
In general, the accepted manner of restricting flow rate through a domestic tap is to reduce the flow crosssection of the water supply pipe to the tap by introducing a member into the flow passage. Such a device reduces the flow cross-section by an amount determined by the oiameter of the member, the flow cross-section being an annular passage defined between the cylindrical inlet pipe and the cylindrical restrictor member. However, such a device requires regular servicing in oroer to ensure that the correct size of flow cross-section is maintained for optimum performance.
It is the object of the present invention to provide an improved flow restriction device for use with domestic taps, which requires the minimum of maintenance and which may serve as a replacement for an existing valve member and which does not require an insert member to project into the inlet opening to reduce the flow cross-section.
According to the present invention there is provided a flow restriction device for taps comprising a cup-shaped restrictor member locatable on the valve seat of a tap over the inlet opening thereof and a valve member locatable in said cup-shaped restrictor member, wherein in the open position of the valve, liquid may flow in through an aperture provided in the base of the cup-shaped member and out through lateral openings in the sice walls cf tne cup-shapeo member into the outlet opening of the tap, in use, anc wherein in the closed position of the valve, the valve member is biaseo against the base of the cup-shaped restrictor to seal off the inlet and outlet openings.
The relative sizes of the restrictor member and valve member and the apertures provided in the restrictor member can be sized appropriately to determine the desired flow rate, and further, the number of apertures provided both in the side walls and the base may be altered as required to achieve such desireo flow rate.
With reference to the accompanying drawings, a cutaway view of a tas is shown in wnich a flow restrictor device accordinc to the present invention is shown in position.
A tap booty 1 of conventional resign is shown in which a flow restrictor member 11 is positioned so as to sit on the valve seat 12 of the tap to thereby close tne inlet opening of the water inlet 13. The restrictor member 11 is cup-shaped and receives a valve member 14 which carries a replaceable valve washer 15. Tne valve member 14 is a oisc-shaped member having a downwardly extending stem 16, which is engageable in an aperture 17 in the base of the restrictor member 11 so as to guide the valve member therein.When the valve member 14 is depressed by operation of the valve to close the tap, the valve member 15 is brought into engagement with the base of the restrictor member 11 and closes off the base aperture 17 and one or more lateral apertures 16 provided in the side walls of the restrictor member 11. When the tap is opened, the valve member is raised to the position shown in the drawing by the pressure of water in the inlet 13 so that the water may flow into the lower portion of the cup-shaped restrictor member 11 through the aperture 17 ano then flow out through the apertures 16 into the tap outlet.
The device according to the present invention is a direct replacement for existing valve members for taps, which would normally be accommodated in a blind bore provided in the base of the actuating stem 20 of the tap, and being of a relatively simple nature is readily replaceable and renewable at very low cost, although it should only be necessary to review the valve washer 15 periodically when such becomes worn.
As will be appreciated, the flow restriction member can be provided with any required number and sizes of apertures to provide the desired flow rate through the tap when fully open and the range of different sizes of apertures could be provided to enable the user to select the oesired flow rate at his own preference if required.
It will be appreciated that the invention of the present application provide a simple and inexpensive device for providing flow restriction in taps with the minimum of any requirement for servicing.
Claims (7)
1. A flow restriction device for taps, comprising a cup-shaped restrictor member locatable on the valve seat of a tap over the inlet opening thereof, and a valve member located in said cupshaped restrictor member, wherein, in the open position of the valve, liquid may flow through an aperture provided in the base of the cup-shaped member and out through lateral openings in the side walls of the cup-shaped member into the outlet opening of the tap, in use, and wherein in the closed position of the valve, the valve member is biased against the base of the cup-shaped restrictor to seal off the inlet or outlet openings.
2. A flow restrictor as claimed in claim 1 wherein said valve comprises a disc-shaped member having a downwardly extending stem which is engageable in the aperture provided in the base of the cup-shaped member, said valve member supporting a valve washer.
3. A flow restrictor device as claimed in claim 2 in which the relative sizes of the stem of the valve member and the aperture in the cup-shaped restrictor determine the flow cross section at the inlet opening of the valve and, in combination with the size and number of outlet openings provided in the cup-shaped restrictor together determine the flow rate through the flow restrictor device.
4. A device as claimed in any preceding claim in which the cupshaped member and the valve member are made of brass.
5. A flow restrictor device as claimed in any preceding claim in which the cup-shaped member and valve member are made of plastics material.
6. A device as claimed in claim 5, in which the cup-shaped member and valve member are made of nylon.
7. A flow restrictor device substantially as hereinbefore described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08628445A GB2198214A (en) | 1986-11-27 | 1986-11-27 | Flow restriction device for a tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08628445A GB2198214A (en) | 1986-11-27 | 1986-11-27 | Flow restriction device for a tap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8628445D0 GB8628445D0 (en) | 1986-12-31 |
| GB2198214A true GB2198214A (en) | 1988-06-08 |
Family
ID=10608080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08628445A Withdrawn GB2198214A (en) | 1986-11-27 | 1986-11-27 | Flow restriction device for a tap |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2198214A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4940206A (en) * | 1989-02-15 | 1990-07-10 | Chung Shan Sheen | Faucet |
| EP0731306A1 (en) * | 1995-03-10 | 1996-09-11 | Hansa Metallwerke Ag | Flow limiting valve insertion between a shower hose and a hand shower |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB243149A (en) * | 1924-11-05 | 1925-11-26 | Tom Frederick Gray | Improvements relating to stop valves |
| GB463340A (en) * | 1935-12-23 | 1937-03-30 | Philip Keith Saunders | Fluid-controlling valves |
| GB593228A (en) * | 1945-07-10 | 1947-10-10 | Arthur Leslie Tebbs | Improvements in and relating to lift valves |
| GB669434A (en) * | 1949-10-12 | 1952-04-02 | John Gordon Rider Haggard | Improved tap or faucet |
| GB745266A (en) * | 1953-09-22 | 1956-02-22 | Herbert George Custance | Improvements in or relating to non-return valves |
| GB1401539A (en) * | 1971-09-24 | 1975-07-16 | Adar Sa | Valves for controlling the flow of fluid |
| GB1457625A (en) * | 1973-03-15 | 1976-12-08 | Ba Installationsutveckling Ab | Valves and regulating devices therefor |
| GB2019532A (en) * | 1978-04-19 | 1979-10-31 | Crane Co | Low Noise Value |
| GB1561159A (en) * | 1978-03-13 | 1980-02-13 | Bvmi Ltd | Fluid control valves |
| EP0020813A1 (en) * | 1979-06-20 | 1981-01-07 | GebràDer Sulzer Aktiengesellschaft | Steam-desuperheating valve |
| EP0072169A1 (en) * | 1981-08-03 | 1983-02-16 | E.I. Du Pont De Nemours And Company | Fluid control apparatus |
| US4397331A (en) * | 1978-09-29 | 1983-08-09 | Honeywell Inc. | Fluid flow control valve with maximized noise reduction |
-
1986
- 1986-11-27 GB GB08628445A patent/GB2198214A/en not_active Withdrawn
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB243149A (en) * | 1924-11-05 | 1925-11-26 | Tom Frederick Gray | Improvements relating to stop valves |
| GB463340A (en) * | 1935-12-23 | 1937-03-30 | Philip Keith Saunders | Fluid-controlling valves |
| GB593228A (en) * | 1945-07-10 | 1947-10-10 | Arthur Leslie Tebbs | Improvements in and relating to lift valves |
| GB669434A (en) * | 1949-10-12 | 1952-04-02 | John Gordon Rider Haggard | Improved tap or faucet |
| GB745266A (en) * | 1953-09-22 | 1956-02-22 | Herbert George Custance | Improvements in or relating to non-return valves |
| GB1401539A (en) * | 1971-09-24 | 1975-07-16 | Adar Sa | Valves for controlling the flow of fluid |
| GB1457625A (en) * | 1973-03-15 | 1976-12-08 | Ba Installationsutveckling Ab | Valves and regulating devices therefor |
| GB1561159A (en) * | 1978-03-13 | 1980-02-13 | Bvmi Ltd | Fluid control valves |
| GB2019532A (en) * | 1978-04-19 | 1979-10-31 | Crane Co | Low Noise Value |
| US4397331A (en) * | 1978-09-29 | 1983-08-09 | Honeywell Inc. | Fluid flow control valve with maximized noise reduction |
| EP0020813A1 (en) * | 1979-06-20 | 1981-01-07 | GebràDer Sulzer Aktiengesellschaft | Steam-desuperheating valve |
| EP0072169A1 (en) * | 1981-08-03 | 1983-02-16 | E.I. Du Pont De Nemours And Company | Fluid control apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4940206A (en) * | 1989-02-15 | 1990-07-10 | Chung Shan Sheen | Faucet |
| EP0731306A1 (en) * | 1995-03-10 | 1996-09-11 | Hansa Metallwerke Ag | Flow limiting valve insertion between a shower hose and a hand shower |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8628445D0 (en) | 1986-12-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |