GB2332501A - Improved ball-type valve - Google Patents

Improved ball-type valve Download PDF

Info

Publication number
GB2332501A
GB2332501A GB9727047A GB9727047A GB2332501A GB 2332501 A GB2332501 A GB 2332501A GB 9727047 A GB9727047 A GB 9727047A GB 9727047 A GB9727047 A GB 9727047A GB 2332501 A GB2332501 A GB 2332501A
Authority
GB
United Kingdom
Prior art keywords
semi
ball
holes
ball valve
tube
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Withdrawn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
GB9727047A
Other versions
GB9727047D0 (en
Inventor
Hung-Chang Huang
Chin-Hung Huang
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
Priority to GB9727047A priority Critical patent/GB2332501A/en
Priority to FR9716502A priority patent/FR2772869B3/en
Priority to DE29800348U priority patent/DE29800348U1/en
Publication of GB9727047D0 publication Critical patent/GB9727047D0/en
Priority to CA002231579A priority patent/CA2231579A1/en
Publication of GB2332501A publication Critical patent/GB2332501A/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Withdrawn legal-status Critical Current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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/20—Making machine elements valve parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Housings (AREA)
  • Taps Or Cocks (AREA)
  • Fuel-Injection Apparatus (AREA)
  • External Artificial Organs (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

A ball valve includes a first part (40) and a second part (41) with a tube (42) being sandwiched therebetween. Each of the first and the second parts is a semi-spherical shell and has two diametrically opposed semi-circular recesses (44, 43) defined therein. The first part (40) has a slot (46) defined in its outer periphery. The first part (40) and the second part (41) are connected together to form a ball with two holes respectively defined therein. Each of the holes is defined by a respective pair of opposed semi-circular recesses (44, 43). The tube (42) is received between the first and second parts and disposed between the two holes.

Description

2332501 IMPROVED BALL-TYPE VALVE The present invention relates to a valve
and, more particularly, to an improved ball-type valve composed of two ball halves and a tube which is sandwiched between the two ball halves so as to simplify a manufacturing process thereof.
Figure 1 shows a conventional ball-type valve which is made to be a solid ball 20 having a passage 21 defined therethrough. A notch 22 is defined in an outer periphery of the solid ball 20 so as to cooperate with other parts to rotate the ball valve. However, a process to manufacture the ball valve has the following defects:
1. The ball valve is made by casting molten stainless steel or copper and has a solid configuration. Both stainless steel and copper are expensive as compared with other alternative materials.
2. When the ball valve is formed from casting the molten stainless steel or copper, an outer surface of the ball and an inner periphery defining the passage have to be machined to get the desired dimensions and tolerances. This machining involves two independent processes so that a rate of production is therefore reduced.
3. There will be some blow holes found on the outer surface of the solid ball and the inner periphery defining the passage. If the blow holes are so large that they are difficult to be machined out, a defective semiproduct is inevitably encountered and the ball valve is scrapped.
The present invention intends to provide an improved ball assembly for a ball-type valve to mitigate and/or obviate the above- mentioned problems.
The present invention provides a ball assembly which includes a first part, a second part and a tube disposed between the first and the second part. The first part is a semi-spherical shell and has two first semicircular recesses defined diametrically in opposite with each other. A slot is defined in an outer periphery of the first part.
The second part is a semi-spherical shell and has two second semicircular recesses defined diametrically in opposite with each other. The first part and the second part are jointly connected to each other so as to form a ball with two holes respectively defined therein. Each of the holes is defined by a pair of opposite first and second semi-circular recesses. The tube is snugly received between the two holes.
It is an object of the present invention to provide a ball valve which is made by a simple manufacturing process.
Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
Fig. ball valve; Fig. 2 is a cross sectional view of a ball valve of the present invention, and Fig. 3 is an illustrative view to show a manufacturing process of the ball valve of the present invention.
IN THE DRAWINGS 1 is a cross sectional view of a conventional Referring to Figs. 2 and 3, a ball valve in accordance with the present invention generally includes a first part 40, a second part 41 and a tube 42 disposed between the first and the second parts 40, 41. Each of the first and the second parts 40, 41 is manufactured from a stainless steel or copper plate 411 into a semi-spherical shell. The first part 40 has two first semi-circular recesses 44 defined diametrically in opposite with each other and a slot 46 is defined in an outer periphery of the first part 40. The second part 41 has two second semi-circular recesses 43 defined diametrically in opposite with each other. The first part 40 and the second part 41 can be jointly connected to each other by soldering S1 so as to form a ball with two holes respectively defined therein and each of the holes is defined by an opposite pair of the first and second semi-circular recess 44, 43.
The tube 42 is cut from a long tube 421 and snugly received between the first and second parts 40, 41. An outer diameter of the tube 42 corresponds to a diameter of each of the holes so that the tube can be snugly disposed between the two holes.
A sphere shape correcting process S2 and a surface polishing process S3 are performed to let the ball valve to have desired tolerance and configuration.
Therefore, the ball valve of the present invention has a light weight and lower manufacturing cost.
Although the invention has been explained in relation to its preferred embodiment, it is to be understood that many other possible modifications and variations can be made without departing from the spirit and scope of the invention 1 as hereinafter claimed.

Claims (4)

  1. Claims: 1. A ball valve comprising: a first part being a semi-spherical
    shell and having two first semi-circular recesses defined diametrically in opposite with each other, a slot defined in an outer periphery of the first part; a second part being a semi-spherical shell and having two second semi-circular recesses defined diametrically in opposite with each other, said first part and said second part jointly connected to each other so as to form a ball with two holes respectively defined therein, each of said holes being defined by a pair of opposite first and second semi-circular recess, and a tube snugly received between said first and said part and disposed between said two holes.
  2. 2. The ball valve as claimed in claim 1 wherein each of said first and said second part is made from a stainless steel sheet.
  3. 3. The ball valve as claimed in claim 1 wherein each of said first and said second part is made from a copper sheet.
  4. 4. The ball valve as claimed in claim 1 wherein an outer diameter of said tube is marginally smaller than an inner periphery defining each of said holes.
GB9727047A 1997-12-22 1997-12-22 Improved ball-type valve Withdrawn GB2332501A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9727047A GB2332501A (en) 1997-12-22 1997-12-22 Improved ball-type valve
FR9716502A FR2772869B3 (en) 1997-12-22 1997-12-24 BALL VALVE
DE29800348U DE29800348U1 (en) 1997-12-22 1998-01-12 Ball valve
CA002231579A CA2231579A1 (en) 1997-12-22 1998-03-10 Improved ball-type valve

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9727047A GB2332501A (en) 1997-12-22 1997-12-22 Improved ball-type valve
FR9716502A FR2772869B3 (en) 1997-12-22 1997-12-24 BALL VALVE
DE29800348U DE29800348U1 (en) 1997-12-22 1998-01-12 Ball valve
CA002231579A CA2231579A1 (en) 1997-12-22 1998-03-10 Improved ball-type valve

Publications (2)

Publication Number Publication Date
GB9727047D0 GB9727047D0 (en) 1998-02-18
GB2332501A true GB2332501A (en) 1999-06-23

Family

ID=31950583

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9727047A Withdrawn GB2332501A (en) 1997-12-22 1997-12-22 Improved ball-type valve

Country Status (4)

Country Link
CA (1) CA2231579A1 (en)
DE (1) DE29800348U1 (en)
FR (1) FR2772869B3 (en)
GB (1) GB2332501A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2343735A (en) * 1998-11-16 2000-05-17 Wu Lei Jui Forged hollow valve ball
AU742512B2 (en) * 1998-08-19 2002-01-03 Philmac Pty Ltd Ball valve
EP1359354A3 (en) * 2002-05-02 2003-12-10 Klinger AG Ball for a ball valve
CN103115163A (en) * 2013-03-08 2013-05-22 杨建国 Ball valve core and production method thereof
GB2569128A (en) * 2017-12-05 2019-06-12 Glenalmond Group Ltd A valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPP535598A0 (en) * 1998-08-19 1998-09-10 Philmac Pty Ltd Ball valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1214404A (en) * 1967-07-11 1970-12-02 Acf Ind Inc Spherical plug valve
GB1220624A (en) * 1967-08-25 1971-01-27 Acf Ind Inc Fabricated plug for spherical plug valve
GB1224602A (en) * 1968-01-30 1971-03-10 Thevignot Ets Spherical valve plug
GB1344606A (en) * 1971-08-02 1974-01-23 Walworth Co Valve ball construction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1214404A (en) * 1967-07-11 1970-12-02 Acf Ind Inc Spherical plug valve
GB1220624A (en) * 1967-08-25 1971-01-27 Acf Ind Inc Fabricated plug for spherical plug valve
GB1224602A (en) * 1968-01-30 1971-03-10 Thevignot Ets Spherical valve plug
GB1344606A (en) * 1971-08-02 1974-01-23 Walworth Co Valve ball construction

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU742512B2 (en) * 1998-08-19 2002-01-03 Philmac Pty Ltd Ball valve
GB2343735A (en) * 1998-11-16 2000-05-17 Wu Lei Jui Forged hollow valve ball
GB2343735B (en) * 1998-11-16 2003-02-19 Lei-Jui Wu Method of making ball valves
EP1359354A3 (en) * 2002-05-02 2003-12-10 Klinger AG Ball for a ball valve
CN103115163A (en) * 2013-03-08 2013-05-22 杨建国 Ball valve core and production method thereof
CN103115163B (en) * 2013-03-08 2015-10-28 杨建国 A kind of ball valve core and production method thereof
GB2569128A (en) * 2017-12-05 2019-06-12 Glenalmond Group Ltd A valve
GB2569128B (en) * 2017-12-05 2022-02-23 Glenalmond Group Ltd A valve

Also Published As

Publication number Publication date
FR2772869A3 (en) 1999-06-25
CA2231579A1 (en) 1999-09-10
GB9727047D0 (en) 1998-02-18
DE29800348U1 (en) 1998-03-12
FR2772869B3 (en) 1999-11-19

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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)