GB2059531A - Jointing Metal Pipes - Google Patents
Jointing Metal Pipes Download PDFInfo
- Publication number
- GB2059531A GB2059531A GB7933453A GB7933453A GB2059531A GB 2059531 A GB2059531 A GB 2059531A GB 7933453 A GB7933453 A GB 7933453A GB 7933453 A GB7933453 A GB 7933453A GB 2059531 A GB2059531 A GB 2059531A
- Authority
- GB
- United Kingdom
- Prior art keywords
- length
- metal pipe
- brass
- pipe
- copper
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims description 43
- 229910052751 metal Inorganic materials 0.000 title claims description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910052802 copper Inorganic materials 0.000 claims abstract description 33
- 239000010949 copper Substances 0.000 claims abstract description 33
- 229910001369 Brass Inorganic materials 0.000 claims abstract description 27
- 239000010951 brass Substances 0.000 claims abstract description 27
- 210000004907 gland Anatomy 0.000 claims abstract description 23
- 238000005260 corrosion Methods 0.000 claims abstract description 5
- 230000007797 corrosion Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 6
- 238000009825 accumulation Methods 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
- F16L19/028—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall
- F16L19/0286—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall and being formed as a flange
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
- F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Pressure Members (AREA)
Abstract
A pipe joint for solar water has a female gland nut (18) brazed to a pipe (20) and male union nut (14) which is brazed to a pipe (10). A gasket (22) is clamped between an out-turned flange on the end of the pipe (10) and the free end (20) of the pipe (12) and keeps the water away from the nuts (14 and 18) which are made of brass and are therefore more prone to corrosion than the pipes themselves which are made of copper. <IMAGE>
Description
SPECIFICATION
Jointing Metal Pipes
The present invention relates to the jointing of metal, particularly copper, pipes.
Metal pipes are used in applications involving transport of water from one location to another.
Where it is necessary to join one length of pipe to another it is common practice to use brass nuts.
Typically, a brass union nut with an internal female thread is brazed to an end of one length of pipe. A brass gland nut with an external male thread matching the female thread is brazed to an end of another length of pipe. Brass in a water line can be subject to corrosion if it is in contact with the water over an extended period. In a fast flowing line this does not lead to undue problems since the water flow washes away any accumulation of corroded material. However, where the water flow is slow such as in thermosyphon type solar water heater headers, the corroded material tends to build up and eventually to obstruct the water line. Thus, the present invention provides a metal pipe joint for a waterline in which brass fittings have little or no contact with water flowing through the line.
In accordance with the present invention there is provided a metal pipe joint for a water line comprising a first length of metal pipe having a brass male gland nut attached thereto adjacent an end thereof. A second length of metal pipe having a brass female union nut attached thereto adjacent an end thereof, the male gland nut and female union nut having matching external and internal threads respectively, characterised in that the first length of metal pipe comprises a free end portion which is turned outwardly to form a flange in engagement with an adjacent portion of the male gland nut, the second length of metal pipe comprises a free end portion which together with the female union nut defines an annular cavity in which is located an O-ring gasket, whereby, in use, the male and female nuts are threadedly engaged so as to draw the lengths of metal pipe together and the 0 ring gasket is compressed between the outwardly turned flange and the annular cavity.
The metal pipe joint of the present invention has been found to be effective allowing easy connection and disconnection at low cost.
The present invention will now be described, by way of example, with reference to the accompanying drawing which is a schematic sectional view of a copper pipe joint of the present invention. In the drawing, there is shown a copper pipe joint for a water line of a solar water heater header comprising a first length of copper pipe 10 and a second length of copper pipe 12.
The first length of copper pipe 10 has a brass male gland nut 14 attached thereto adjacent an end thereof, typically, the gland nut 14 is brazed to the copper pipe 10. The copper pipe 10 comprises a free end portion which is turned outwardly through 90O in known manner to form a flange 16 about 3 mm deep in engagement with an adjacent portion of the gland nut 14. The second length of copper pipe 12 has a brass female union nut 18 attached thereto adjacent an end thereof. Typically, the union nut 18 is brazed to the copper pipe 12. The copper pipe 12 comprises a free end portion 20 about 2 mm long which together with the union nut 18 forms an annular cavity. An 0 ring gasket 22 is placed in the annular cavity. The threads on the gland nut
14 and union nut 18 are matching.In use, the nuts 14 and 18 are threadedly engaged so as to draw the lengths of copper pipe 10 and 12 together. The free end portion 20 of the copper pipe 12 contacts the base of the flange 16. This causes the 0 ring gasket 22 to be compressed between the flange 16 and the walls of the cavity defined by the free end portion 20 and the union nut 18. Thus, the 0 ring gasket forms a seal which -prevents water from coming into contact with the brass nuts 14 and 1 8. Only the copper of the pipes 10 and 12 is contacted by the water. Since copper is more corrosion resistant than brass there is a reduced tendency for corroded material to accumulate in the water line. Modifications and variations such as would be apparent to a skilled addressee are deemed within the scope of the present invention.
Claims
1. A metal pipe joint for a water line comprising a first length of metal pipe having a brass male gland nut attached thereto adjacent an end thereof, a second length of metal pipe having a brass female union nut attached thereto adjacent an end thereof, the male gland nut and female union nut having matching external and internal threads respectively, characterised in that the first length of metal pipe comprises a free end portion which is turned outwardly to form a flange in engagement with an adjacent portion of the male gland nut, the second length of metal pipe comprises a free end portion which together with the female union nut defines an annular cavity in which is located an 0 ring gasket, whereby, in use, the male and female nuts are threadedly engaged so as to draw the lengths of metal pipe together and the 0 ring gasket is compressed between the outwardly turned flange and the annular cavity.
2. A metal pipe joint as claimed in claim 1, characterised in that the lengths of metal pipe are formed of copper.
3. A solar water heater comprising one or more metal pipe joints as claimed in claim 1 or claim 3.
4. A metal pipe joint substantially as herein described with reference to and as illustrated in the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (4)
1. A metal pipe joint for a water line comprising a first length of metal pipe having a brass male gland nut attached thereto adjacent an end thereof, a second length of metal pipe having a brass female union nut attached thereto adjacent an end thereof, the male gland nut and female union nut having matching external and internal threads respectively, characterised in that the first length of metal pipe comprises a free end portion which is turned outwardly to form a flange in engagement with an adjacent portion of the male gland nut, the second length of metal pipe comprises a free end portion which together with the female union nut defines an annular cavity in which is located an 0 ring gasket, whereby, in use, the male and female nuts are threadedly engaged so as to draw the lengths of metal pipe together and the 0 ring gasket is compressed between the outwardly turned flange and the annular cavity.
2. A metal pipe joint as claimed in claim 1, characterised in that the lengths of metal pipe are formed of copper.
3. A solar water heater comprising one or more metal pipe joints as claimed in claim 1 or claim 3.
4. A metal pipe joint substantially as herein described with reference to and as illustrated in the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7933453A GB2059531B (en) | 1979-09-27 | 1979-09-27 | Jointing metal pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7933453A GB2059531B (en) | 1979-09-27 | 1979-09-27 | Jointing metal pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2059531A true GB2059531A (en) | 1981-04-23 |
| GB2059531B GB2059531B (en) | 1983-09-07 |
Family
ID=10508090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7933453A Expired GB2059531B (en) | 1979-09-27 | 1979-09-27 | Jointing metal pipes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2059531B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999053121A1 (en) * | 1998-04-09 | 1999-10-21 | Dj Parker Company, Inc. Doing Business As Parker Systems | Automated chemical process control system |
| GB2509526A (en) * | 2013-01-05 | 2014-07-09 | George Tickell | A drain pipe access cap adaptor |
| CN120576289A (en) * | 2025-08-05 | 2025-09-02 | 烟台莱德流体科技有限公司 | A transition joint for air supply pipe |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015792A (en) * | 2016-08-14 | 2016-10-12 | 大连新钢液压管件有限公司 | Pipe joint of high-pressure flexible pipe |
-
1979
- 1979-09-27 GB GB7933453A patent/GB2059531B/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999053121A1 (en) * | 1998-04-09 | 1999-10-21 | Dj Parker Company, Inc. Doing Business As Parker Systems | Automated chemical process control system |
| GB2509526A (en) * | 2013-01-05 | 2014-07-09 | George Tickell | A drain pipe access cap adaptor |
| CN120576289A (en) * | 2025-08-05 | 2025-09-02 | 烟台莱德流体科技有限公司 | A transition joint for air supply pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2059531B (en) | 1983-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2221957C2 (en) | Hose connector and its threaded holder | |
| US3507506A (en) | Pipe joint seal | |
| US5857717A (en) | Plumbing device and method | |
| US3749426A (en) | Pipe joint seal | |
| US3501171A (en) | Connector assembly for fluid conduits | |
| US3689110A (en) | Fluid line coupling | |
| CA3052495C (en) | Pipe connector with tapered thread nut | |
| GB2085574A (en) | Double pipe cooler | |
| US20130277964A1 (en) | Coupling | |
| US11143339B2 (en) | Coupling for fluid conduits | |
| US10208875B1 (en) | Quick-connect dielectric union | |
| US10323777B2 (en) | Pipe coupling fitting with internal spacer sleeve | |
| DE59201503D1 (en) | Heat exchangers for sewage pipes or hoses. | |
| GB2059531A (en) | Jointing Metal Pipes | |
| CN216112692U (en) | Welded pipe connector | |
| PL70377B1 (en) | ||
| US20060157980A1 (en) | Dual material threading for pipe adapter | |
| US3008737A (en) | Gas appliance connector | |
| US2132574A (en) | Pipe joint | |
| JP2864183B2 (en) | Joint | |
| RU180307U1 (en) | FITTING JOINT FOR METAL-PLASTIC PIPES | |
| US1566958A (en) | Coupling for boiler connections | |
| JPH0237889Y2 (en) | ||
| JP2502963Y2 (en) | Female joint for synthetic resin piping | |
| CN211231960U (en) | A pipe joint assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |