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GB2188709B - Improved fluid-control ball valve with device to ensure tightness in case of fire - Google Patents

Improved fluid-control ball valve with device to ensure tightness in case of fire

Info

Publication number
GB2188709B
GB2188709B GB8707895A GB8707895A GB2188709B GB 2188709 B GB2188709 B GB 2188709B GB 8707895 A GB8707895 A GB 8707895A GB 8707895 A GB8707895 A GB 8707895A GB 2188709 B GB2188709 B GB 2188709B
Authority
GB
United Kingdom
Prior art keywords
fire
case
ball valve
control ball
improved fluid
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.)
Expired - Fee Related
Application number
GB8707895A
Other versions
GB8707895D0 (en
GB2188709A (en
Inventor
Giuseppe Bianchi
Giancarlo Nicolini
Giuseppe Vignati
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.)
GROVE SpA
Original Assignee
GROVE SpA
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 GROVE SpA filed Critical GROVE SpA
Publication of GB8707895D0 publication Critical patent/GB8707895D0/en
Publication of GB2188709A publication Critical patent/GB2188709A/en
Application granted granted Critical
Publication of GB2188709B publication Critical patent/GB2188709B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • F16K5/205—Sealing effected by the flowing medium
    • 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
    • F16K5/0663—Packings
    • F16K5/0673—Composite packings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)
GB8707895A 1986-04-04 1987-04-02 Improved fluid-control ball valve with device to ensure tightness in case of fire Expired - Fee Related GB2188709B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2142586U IT208972Z2 (en) 1986-04-04 1986-04-04 IMPROVED BALL VALVE FOR FLUID CONTROL EQUIPPED WITH A DEVICE THAT ENSURES SEALING IN THE EVENT OF FIRE AND SEATS OF PISTON MOVABLE SEAL IN TWO WAYS.

Publications (3)

Publication Number Publication Date
GB8707895D0 GB8707895D0 (en) 1987-05-07
GB2188709A GB2188709A (en) 1987-10-07
GB2188709B true GB2188709B (en) 1990-07-11

Family

ID=11181597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8707895A Expired - Fee Related GB2188709B (en) 1986-04-04 1987-04-02 Improved fluid-control ball valve with device to ensure tightness in case of fire

Country Status (2)

Country Link
GB (1) GB2188709B (en)
IT (1) IT208972Z2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1277580B1 (en) * 1995-09-14 1997-11-11 Nuovo Pignone Spa PERFECTED DEVICE FOR HANDLING THE SEATS OF A BALL VALVE
CN113503373B (en) * 2021-07-14 2023-06-27 永秀阀门有限公司 Quick connection ball valve

Also Published As

Publication number Publication date
IT208972Z2 (en) 1988-08-29
GB8707895D0 (en) 1987-05-07
IT8621425V0 (en) 1986-04-04
GB2188709A (en) 1987-10-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19980402