GB733293A - Pneumatic system shut-off valve for measuring instruments - Google Patents

Pneumatic system shut-off valve for measuring instruments

Info

Publication number
GB733293A
GB733293A GB28038/53A GB2803853A GB733293A GB 733293 A GB733293 A GB 733293A GB 28038/53 A GB28038/53 A GB 28038/53A GB 2803853 A GB2803853 A GB 2803853A GB 733293 A GB733293 A GB 733293A
Authority
GB
United Kingdom
Prior art keywords
valve
shut
unit
control unit
flow
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
GB28038/53A
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.)
Schneider Electric Systems USA Inc
Original Assignee
Foxboro Co
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 Foxboro Co filed Critical Foxboro Co
Publication of GB733293A publication Critical patent/GB733293A/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
    • 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
    • F16K5/18—Special arrangements for separating the sealing faces or for pressing them together for plugs with cylindrical surfaces
    • F16K5/184—Special arrangements for separating the sealing faces or for pressing them together for plugs with cylindrical surfaces with the plugs or parts of the plugs mechanically pressing the seals against the housing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)
  • Details Of Valves (AREA)
  • Flow Control (AREA)

Abstract

733,293. Valves; fluid-pressure servomotor Control systems. FOXBORO CO. Oct. 12, 1953 [Oct. 23, 1952], No. 28038/53. Class 135. A rotary shut-off valve interposed between two passages 29, 30, Fig. III, has a bifurcated body with a spring 36 pressing the two legs apart, and the head portion 33 carries indication means aligned with the opening between the legs. The body of the valve is made from hornlike resilient, but soapy, nylon plastic and the spring is of beryllium copper. The valve is held in position by a face plate 23 which engages over a flange on the body, and a packing ring 35 is interposed between the flange and the valve housing. As shown, the indication means comprises a screwdriver slot by means of which the valve is rotated. Valves according to the invention may be employed as on-off valves 34A, 34B and 34C, Fig. VIII, to isolate a motoractuated valve 38, to shut off a pressure fluid supply 48 from a control unit 37, and to shut off a flow-measuring unit 40 from access to the unit 37 respectively. The flow unit 40 consists of an orifice plate in a line 39 and the differential pressure across the plate is recorded by a bellows-actuated pen 46 and is fed into the control unit 37. The output from the control unit is recorded by a bellows-actuated indicator 55 and is fed to valve 38 which regulates the flow in line 39.
GB28038/53A 1952-10-23 1953-10-12 Pneumatic system shut-off valve for measuring instruments Expired GB733293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US733293XA 1952-10-23 1952-10-23

Publications (1)

Publication Number Publication Date
GB733293A true GB733293A (en) 1955-07-06

Family

ID=22113087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28038/53A Expired GB733293A (en) 1952-10-23 1953-10-12 Pneumatic system shut-off valve for measuring instruments

Country Status (1)

Country Link
GB (1) GB733293A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1188305B (en) * 1962-10-27 1965-03-04 Metrawatt Ag Specific measuring instrument for installation in control panels or control panels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1188305B (en) * 1962-10-27 1965-03-04 Metrawatt Ag Specific measuring instrument for installation in control panels or control panels

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