GB2478267A - Ball valve - Google Patents

Ball valve Download PDF

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Publication number
GB2478267A
GB2478267A GB0920785A GB0920785A GB2478267A GB 2478267 A GB2478267 A GB 2478267A GB 0920785 A GB0920785 A GB 0920785A GB 0920785 A GB0920785 A GB 0920785A GB 2478267 A GB2478267 A GB 2478267A
Authority
GB
United Kingdom
Prior art keywords
ball
bore
ball valve
ring
valve according
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Withdrawn
Application number
GB0920785A
Other versions
GB0920785D0 (en
Inventor
Alan Frederick Rees
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB0920785D0 publication Critical patent/GB0920785D0/en
Publication of GB2478267A publication Critical patent/GB2478267A/en
Withdrawn legal-status Critical Current

Links

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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor

Landscapes

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

Abstract

A rotating ball valve has a smaller than normal ball member whereby its through bore is bored to one side or offset, or has a circular bore which progresses to an elliptical bore. This leaves a large ball outer surface 13 on one side of the ball onto which an O ring seal 12 can seat.

Description

/fpIiC7-fft NO. G-o925.
Compact Rotating BALL VALVE.
The rotating ball valve consists of a sphere with a hole bored through it, compressed between two 0 rings into an outer body,the 0 rings form a seal around the bore, if th ball is rotated through 90 degrees the 0 rings seal against the unbored area of the ball and all flow through the valve is shut off.
The disadvantage of this type of valve is that the circumference of the ball must be four times the bore plus space for 0 ring seals,resulting in a large ballfor a comparitively smalll-restrictive flow and where the flow is critical it results in an oversized valve, it is the intention of the present invention to design a valve which will give a greater bore (and flow) than is normal through a smaller than normally accepted ball.
Drawing A shows an exploded view of the valve, the ball 1 is compressed into the body 2 by the compression ring 3 it is suggested that a plastic or nylon ring 4 be inserted to avoid metal to metal friction when the ball is turned. The ball is turned by a sealled turnscrew 5.
When assembled, as illustrated the 0 ring 6 forms a seal around the circular bore hole 7 but as it passes through the ball the hole changes shape into a same area elipse 8 thus leaving a larger area betweenthe edges of holes 7 and 8 and a greater area onto which ring 6 can seal when the ball is rotated (a little more than 90 degrees) from open to close, in this way the actual ball no longer needs to be more than four times the size of the cifcular bore, Drawings B and C show the relative position of the 0 ring seal to the bore in B the open position and q the closed position, S * tr.angs D and E show two other methods of boring the ball to achieve the same result as the circle to elipse, S.....
With this type of configuration it is essential that the ball moves only from open to closed position ie not being able to fully rotate. The drawing F illustrates one method by which this can be achieved the cemi-circular part 9 is part of the bottom pole of the ball and is fitted on assembly hittr the machined area 10. This is machined into the bottom of the valve body bore thus allowing o'nlç'0limited and predetermined rotation of the ball.
S.....
Drawing G shows detail of nylon or plastic insert 4 which is provided to reduce friction but shaped with sections 11 removed at the top and bottom so as not to restrict the fluid flow.
Drawing H shows a furher variation where the circular bore changes into an elipse and the elipsei is then angled away from the circular bore providing even more sealing area for the ring.
Number 12 indicateS a sealed position when the ball is rotated to the open posltion.Number 13 shows the area of the ball onto which the ring can seal in its closed position, calculations show that a small projection 14 positioned on the ball equator would not stop the ball or interfere with the ball fully opening and would stop the ball over rotating past its correct closed position.
A problem with the circle to elipse option is that the elipse required leaves little material at the top centre of th ball into which to fit a tum-scew slot, to avoid this problem the turnscrew is part of the ball, drawing J. but to assemble such a ball and fit the tumscreW up through a bore tight enough to seal with an 0 ring is Impossible, so the bail is formed as in Drawing J with a flat A on the top of the ball surrounding the turn-screw B,this flat acts as a seat for the Sealing ring C and the outer body is bored in two steps 0 and E, 0 is the same circumferenCe as the flat A onto which the 0 ring C is compressed by a press-fit ring F. Ring F is pressed into the second bore step E so that it both comoresSeS the ring C and holds the stem and therefore the ball in position. Thus assem-bUy is simple and the 0 rIng C seals both stem B and the press-fit ring F. S..... * S
S
* S.... * .
S
*..*.S * S S... * S *5*5
I
*S.'.I * . * 3

Claims (9)

  1. CLAIMS.1. A rotating ball valve with a bore so constructed that the flow through the bore is greater than that which is normaly possible through a ball of this cercumference..
  2. 2. A rotating ball valve as in claim one where the bore is stepped inside the valve leaving a larger area of the outer circumferance of the ball on one side of the bore compared to the other.
  3. 3. A rotating ball valve as in claims one and two where the circular bore changes into an elipse of the same area as it passes through the ball.
  4. 4. A rotating ball valve according to any preceding claim where the circular bore changes into an elipse of the same area and the elipse is bored at an angle to the circular bore.
  5. 5. A rotating ball valve according to any preceding claims where the ball is offset or its shape is altered or angled in order that a larger area of the ball surface is left on to which the sealing ring can seat, to close off the flow of fluid through the valve.
  6. 6. A rotating ball valve according to any proceding claim where a plastic or nylon type material is used as a ring to hold the ball in position and avoid metal to metal friction when the ball is rotated.
  7. 7. A rotating ball valve according to any preceding claim which has a projection to ensure that the ball only rotates the correct amount required to be fully sealed when closed and not restrict the flow when open.
  8. 8. A rotating ball valve according to any proceeding claim where one 0 ring serves to seal both the turn screw and the pressfit ring that fixes the stem and therefre the ball in position.
  9. 9. Arotating ball type valve according to any preceding claim where the ball and turnstem are ThThid in one with a flat area around the base of the stem onto which the stem sealing ring can seal. * * * *S*S.S.a * I
GB0920785A 2008-10-23 2009-11-27 Ball valve Withdrawn GB2478267A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0819391A GB0819391D0 (en) 2008-10-23 2008-10-23 Compact rotating ball valve
GB0918503A GB0918503D0 (en) 2008-10-23 2009-10-22 Compact rotating ball valve

Publications (2)

Publication Number Publication Date
GB0920785D0 GB0920785D0 (en) 2010-01-13
GB2478267A true GB2478267A (en) 2011-09-07

Family

ID=40097860

Family Applications (3)

Application Number Title Priority Date Filing Date
GB0819391A Ceased GB0819391D0 (en) 2008-10-23 2008-10-23 Compact rotating ball valve
GB0918503A Ceased GB0918503D0 (en) 2008-10-23 2009-10-22 Compact rotating ball valve
GB0920785A Withdrawn GB2478267A (en) 2008-10-23 2009-11-27 Ball valve

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB0819391A Ceased GB0819391D0 (en) 2008-10-23 2008-10-23 Compact rotating ball valve
GB0918503A Ceased GB0918503D0 (en) 2008-10-23 2009-10-22 Compact rotating ball valve

Country Status (1)

Country Link
GB (3) GB0819391D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2966325A1 (en) * 2014-07-05 2016-01-13 Alan Frederick Rees A ball valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4714092A (en) * 1987-02-02 1987-12-22 Agricultural Aviation Engineering Company Ball valve and flowing fluid pressure amplifier
GB2246614A (en) * 1990-08-01 1992-02-05 John Madigan Fluid regulator valve
US5205533A (en) * 1990-06-08 1993-04-27 Metalpraecis Berchem + Schaberg Gesellschaft Fur Metallformgebung Mbh Ball valve
US6240946B1 (en) * 1998-09-17 2001-06-05 Tyco Flow Control, Inc. Switch valve
WO2004018915A1 (en) * 2002-08-20 2004-03-04 Sp Group A/S On/off valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4714092A (en) * 1987-02-02 1987-12-22 Agricultural Aviation Engineering Company Ball valve and flowing fluid pressure amplifier
US5205533A (en) * 1990-06-08 1993-04-27 Metalpraecis Berchem + Schaberg Gesellschaft Fur Metallformgebung Mbh Ball valve
GB2246614A (en) * 1990-08-01 1992-02-05 John Madigan Fluid regulator valve
US6240946B1 (en) * 1998-09-17 2001-06-05 Tyco Flow Control, Inc. Switch valve
WO2004018915A1 (en) * 2002-08-20 2004-03-04 Sp Group A/S On/off valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2966325A1 (en) * 2014-07-05 2016-01-13 Alan Frederick Rees A ball valve

Also Published As

Publication number Publication date
GB0918503D0 (en) 2009-12-09
GB0920785D0 (en) 2010-01-13
GB0819391D0 (en) 2008-11-26

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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)