GB905091A - Improvements relating to fluid flow control valves - Google Patents

Improvements relating to fluid flow control valves

Info

Publication number
GB905091A
GB905091A GB2166760A GB2166760A GB905091A GB 905091 A GB905091 A GB 905091A GB 2166760 A GB2166760 A GB 2166760A GB 2166760 A GB2166760 A GB 2166760A GB 905091 A GB905091 A GB 905091A
Authority
GB
United Kingdom
Prior art keywords
rod
closure member
stem
sleeve
piston
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
GB2166760A
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.)
COMPAGNIA ITALIANA WESTINGHOUSE FRENI E SEGNALI IT
Westinghouse Italiana
Original Assignee
COMPAGNIA ITALIANA WESTINGHOUSE FRENI E SEGNALI IT
Westinghouse Italiana
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
Priority to IT1069459 priority Critical
Application filed by COMPAGNIA ITALIANA WESTINGHOUSE FRENI E SEGNALI IT, Westinghouse Italiana filed Critical COMPAGNIA ITALIANA WESTINGHOUSE FRENI E SEGNALI IT
Publication of GB905091A publication Critical patent/GB905091A/en
Application status is Expired legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00Means to prevent accidental or unauthorised actuation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/14Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
    • F16K31/143Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston

Abstract

905,091. Valves. COMPAGNIA ITALIANA WESTINGHOUSE FRENI E SEGNALI. June 21, 1960 [June 22, 1959], No. 21667/60. Class 135. A pneumatically or manually-operable fluidflow control valve, such as a gate valve, comprises two coaxially aligned rods 13, 5, one rotatable but restrained from axial movement and the other movable axially, a closure member 2 attached to the rod 5, a combination of a non-rotatable piston 7 and piston stem 7a mounted on the rods within a cylinder 9 and operably associated with the rods for pneumatic operation of the closure member, screw means 13a, 40 for translating the manual rotary movement in the rotatable rod into axial movement in the axially-movable rod, and a locking means 10, 12, 18, 20 for maintaining the closure member in the open or closed position. The rod 5 has secured thereto a sleeve-like member 11 which is located in a chamber 31 formed in the stem 7a the threaded rod 13 being arranged to move within the sleeve when the latter is rotated. Pegs 12 extend from each side of the sleeve and pass through elongated slots 32 in the step, the pegs engaging in the closed position shown, with the ends of a fork 18, Fig. 2, mounted on a spring-loaded member 38 and forming part of the locking means. In manual operation, when the rod 13 is rotated by a hand wheel 16 in an anticlockwise direction, the step 7a, together with the piston 7, lifts since the latter is prevented from rotation by a pin 8. Due to a clearance space between the end 24 of the chamber 31 and the end 23 of the sleeve 11, the first part of the movement of the stem 7a causes the fork 18 to be withdrawn out of engagement with the pins 12 by the contact of a roller 20 with the side of the stem. Continued rotation of the rod 13 then lifts the stem until the ends 23, 24 abut and thereby lifts both the rod 5 and closure member 2 to the open position; the closure member is locked in this position by the engagement of the fork 18 with the pins 10. In pneumatic operation, with the closure member in the position shown, compressed-air is fed through a connection in the bottom of the cylinder, thereby lifting the piston and the stem, and due to the angle of the helix of the thread 13a, causes the rod 13 to rotate, the action of the locking means being the same as previously described. The valve is closed by feeding compressedair through a connection b in the top of the cylinder.
GB2166760A 1959-06-22 1960-06-21 Improvements relating to fluid flow control valves Expired GB905091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT1069459 1959-06-22

Publications (1)

Publication Number Publication Date
GB905091A true GB905091A (en) 1962-09-05

Family

ID=11134287

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2166760A Expired GB905091A (en) 1959-06-22 1960-06-21 Improvements relating to fluid flow control valves

Country Status (1)

Country Link
GB (1) GB905091A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298659A (en) * 1962-12-21 1967-01-17 Cupedo Douwe Janse Fluid power actuated butterfly valve or plug cock
US3349840A (en) * 1965-04-05 1967-10-31 Whirlpool Co Fluid flow control apparatus
GB2183010A (en) * 1985-11-15 1987-05-28 Burman & Sons Ltd Valve actuator
CN107763295A (en) * 2017-10-18 2018-03-06 浙江华尔士自控仪表阀门有限公司 Track ball valve pneumatic actuator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298659A (en) * 1962-12-21 1967-01-17 Cupedo Douwe Janse Fluid power actuated butterfly valve or plug cock
US3349840A (en) * 1965-04-05 1967-10-31 Whirlpool Co Fluid flow control apparatus
GB2183010A (en) * 1985-11-15 1987-05-28 Burman & Sons Ltd Valve actuator
CN107763295A (en) * 2017-10-18 2018-03-06 浙江华尔士自控仪表阀门有限公司 Track ball valve pneumatic actuator
CN107763295B (en) * 2017-10-18 2019-03-19 浙江华尔士自控仪表阀门有限公司 A kind of orbit ball valve pneumatic actuator

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