GB533866A - Improvements in fluid control valve testing arrangements - Google Patents

Improvements in fluid control valve testing arrangements

Info

Publication number
GB533866A
GB533866A GB3161539A GB3161539A GB533866A GB 533866 A GB533866 A GB 533866A GB 3161539 A GB3161539 A GB 3161539A GB 3161539 A GB3161539 A GB 3161539A GB 533866 A GB533866 A GB 533866A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
servomotor
stem
pipe
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
GB3161539A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB3161539A priority Critical patent/GB533866A/en
Publication of GB533866A publication Critical patent/GB533866A/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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025—Electrical or magnetic means
    • F16K37/0041—Electrical or magnetic means for measuring valve parameters

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Turbines (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

533,866. Valves. BRITISH THOMSONHOUSTON CO., Ltd. (General Electric Co.). Dec. 6, 1939, No. 31615. [Class 135] A testing arrangement for a fluid control valve 13, having operating means consisting of a fluid operated servomotor with a piston 17 connected to the valve stem 14, comprises a valve controlled byepass 41, 42, connected to the servomotor on opposite sides of the piston 17, to check the movability of the stem 14, the byepass being automatically rendered ineffective in response to a limited movement of the valve stem. The piston 17 is biassed to the valve closing position by a spring 19 and is moved to the valve opening position by fluid pressure led to the cylinder 18 by pipes 20, 25, including a valve 21. Piston valves 38, 39. on a common stem are normally positioned as shown so that the pipe 42 is blocked and the pipe 41 is open at 36 to the atmosphere. To test the operability of the valve 13 a hand-lever 45 is raised to close the duct 36 and connect the pipes 41, 42. The pressure on opposite sides of the servomotor piston 17 is thus equalized and the latter moves in a direction to close the valve 13. Such valve-closing movement is very limited and ceases as soon as the servomotor piston 17 covers the end of the pipe 42. Upon release of the lever 45 the valve 13 is moved to the fully open position. As shown, the valve 21 embodies a trip latch 27 co-operating with the shaft 30 of a turbine or other part of the mechanism embodying the fluid control valve. Upon excessive speed of the shaft 30 the latch 27 is tripped and the valve 21 moves to exhaust the servomotor cylinder 18, whereupon the valve 13 closes. Means to indicate that the valve 13 is making testing movements consists of contacts 50 electrically associated with a lamp 48. Upon slight testing movements of the valve 13 a projection 51 on the valve stem 14 closes the contacts 50 and the lamp 48 is illuminated.
GB3161539A 1939-12-06 1939-12-06 Improvements in fluid control valve testing arrangements Expired GB533866A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3161539A GB533866A (en) 1939-12-06 1939-12-06 Improvements in fluid control valve testing arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3161539A GB533866A (en) 1939-12-06 1939-12-06 Improvements in fluid control valve testing arrangements

Publications (1)

Publication Number Publication Date
GB533866A true GB533866A (en) 1941-02-21

Family

ID=10325794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3161539A Expired GB533866A (en) 1939-12-06 1939-12-06 Improvements in fluid control valve testing arrangements

Country Status (1)

Country Link
GB (1) GB533866A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104784B (en) * 1959-10-26 1961-04-13 Atlas Werke Ag Device for remote display of the position of hydraulically or pneumatically operated slides and valves, in particular of loading slides on tankers
DE1116006B (en) * 1959-11-12 1961-10-26 Babcock & Wilcox Dampfkesselwe Device to indicate the position of encapsulated or difficult to access shut-off devices
DE1117960B (en) * 1960-02-18 1961-11-23 Alois Siebeck Dipl Ing Valve or the like with drive by a pressure medium and display of the end positions of the closure piece by means of switches
DE1263418B (en) * 1964-05-14 1968-03-14 Motor Condensator Cie Scholz K Flange coupling, especially for pneumatic conveyor systems
DE1600990B1 (en) * 1963-01-24 1972-05-31 Guenther Wessel VALVE WITH A SWITCH
EP0259551A1 (en) * 1986-08-08 1988-03-16 Grünbeck Wasseraufbereitung GmbH Tube disconnector with a blocking device, and control means for the blocking device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104784B (en) * 1959-10-26 1961-04-13 Atlas Werke Ag Device for remote display of the position of hydraulically or pneumatically operated slides and valves, in particular of loading slides on tankers
DE1116006B (en) * 1959-11-12 1961-10-26 Babcock & Wilcox Dampfkesselwe Device to indicate the position of encapsulated or difficult to access shut-off devices
DE1117960B (en) * 1960-02-18 1961-11-23 Alois Siebeck Dipl Ing Valve or the like with drive by a pressure medium and display of the end positions of the closure piece by means of switches
DE1600990B1 (en) * 1963-01-24 1972-05-31 Guenther Wessel VALVE WITH A SWITCH
DE1263418B (en) * 1964-05-14 1968-03-14 Motor Condensator Cie Scholz K Flange coupling, especially for pneumatic conveyor systems
EP0259551A1 (en) * 1986-08-08 1988-03-16 Grünbeck Wasseraufbereitung GmbH Tube disconnector with a blocking device, and control means for the blocking device

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