GB286903A - Improvements in means for preventing reverse flow in pipe lines - Google Patents

Improvements in means for preventing reverse flow in pipe lines

Info

Publication number
GB286903A
GB286903A GB985927A GB985927A GB286903A GB 286903 A GB286903 A GB 286903A GB 985927 A GB985927 A GB 985927A GB 985927 A GB985927 A GB 985927A GB 286903 A GB286903 A GB 286903A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
conduit
main
pressure
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
Application number
GB985927A
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 GB985927A priority Critical patent/GB286903A/en
Publication of GB286903A publication Critical patent/GB286903A/en
Expired 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

286,903. Blakeborough, R. A., Brotherton, C., and Wood, T. April 11, 1927. F l u i d - actuated valves. - A valve device for preventing reverse flow has a butterfly valve 4 connected by a link 6 and rod 7 to an actuacting piston 8 controlled by a piston auxiliary valve 14 actuated by a piston 14<3> loaded by weights 18 and subject to the pressure in the main conduit. Conduit pressure is admitted through a pipe 16 having connection with the conduit above and below the main valve and provided with a doubleseated ball valve 17, so that the higher pressure is transmitted through the axial bore 14<2> in the valve member to the piston 14<3>. The central valve is formed with an annular groove so that when it is in its raised position, conduit pressure is admitted to the underside of the main piston to hold the main valve open. When in the open position the link 6 is protected by a stream line tubular casing engaging a corresponding boss on the valve member. The piston rod has an extension 7<1> adapted to close a cock 20 on the control conduit as the main valve approaches its seat.
GB985927A 1927-04-11 1927-04-11 Improvements in means for preventing reverse flow in pipe lines Expired GB286903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB985927A GB286903A (en) 1927-04-11 1927-04-11 Improvements in means for preventing reverse flow in pipe lines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB985927A GB286903A (en) 1927-04-11 1927-04-11 Improvements in means for preventing reverse flow in pipe lines

Publications (1)

Publication Number Publication Date
GB286903A true GB286903A (en) 1928-03-15

Family

ID=9880101

Family Applications (1)

Application Number Title Priority Date Filing Date
GB985927A Expired GB286903A (en) 1927-04-11 1927-04-11 Improvements in means for preventing reverse flow in pipe lines

Country Status (1)

Country Link
GB (1) GB286903A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568706A (en) * 1969-02-06 1971-03-09 Anderson Greenwood & Co Pressure relieving system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3568706A (en) * 1969-02-06 1971-03-09 Anderson Greenwood & Co Pressure relieving system

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