GB867577A - Improvements in or relating to fluid flow control valves - Google Patents

Improvements in or relating to fluid flow control valves

Info

Publication number
GB867577A
GB867577A GB25909/58A GB2590958A GB867577A GB 867577 A GB867577 A GB 867577A GB 25909/58 A GB25909/58 A GB 25909/58A GB 2590958 A GB2590958 A GB 2590958A GB 867577 A GB867577 A GB 867577A
Authority
GB
United Kingdom
Prior art keywords
valve
groove
ring
casing
upstream 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
GB25909/58A
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 Valve and Regulator Co
Original Assignee
Grove Valve and Regulator 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 Grove Valve and Regulator Co filed Critical Grove Valve and Regulator Co
Publication of GB867577A publication Critical patent/GB867577A/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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/228—Movable sealing bodies
    • F16K1/2285—Movable sealing bodies the movement being caused by the flowing medium

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

867,577. Valves. GROVE VALVE & REGULATOR CO. Aug. 12, 1958 [Aug. 26, 1957], No. 25909/58. Class 135. A resilient substantially triangular crosssection valve seating ring 76, Fig. 4, is freely held in a dovetail-like groove 74 having sides of greater slope than those of the ring so that the lips 83, 84 of the groove serve to retain the ring, and means are provided for applying upstream pressure to the base and upstream side of the ring to urge it into sealing contact with the valve member when the latter is in a closed position. Fig. 2 shows the seating ring 76 held in a groove in a butterfly valve casing housing a valve member 19 bolted to spindles 22, 23 journalled in the casing. The valve is actuated by a lever 46 splined to the upper spindle 22 and having a spring-loaded detent plunger 53 which engages a serrated edge 52 of a plate 51, Fig. 6, secured to the casing, a screw 60 enabling the valve to be locked in any actuated -position between end positions set by stops 57, 59 on the plate 57 being engaged respectively by lug 56 or a shoulder 58 on the lever 46. In the valve open position the seating ring 76 only engages the lips 83, 84 of the groove 74 and the base of the groove adjacent its apices and its apex 79 projects beyond the groove, but in the valve closed position, Fig. 4, upstream pressure acting through passages 90 or 91 forces the ring to one side of the groove and the apex 79 into close sealing contact with the valve member, also additional force is supplied by upstream pressure being admitted through non-return valves (not shown) to the underside of the sealing ring at 92. Specification 662,448 is referred to.
GB25909/58A 1957-08-26 1958-08-12 Improvements in or relating to fluid flow control valves Expired GB867577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US867577XA 1957-08-26 1957-08-26

Publications (1)

Publication Number Publication Date
GB867577A true GB867577A (en) 1961-05-10

Family

ID=22200708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25909/58A Expired GB867577A (en) 1957-08-26 1958-08-12 Improvements in or relating to fluid flow control valves

Country Status (1)

Country Link
GB (1) GB867577A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497317A1 (en) * 1980-12-31 1982-07-02 Masoneilan Int Inc FLUID PRESSURE JOINT FOR BUTTERFLY VALVES
WO2020073569A1 (en) * 2018-10-11 2020-04-16 北京航天动力研究所 Fast blind plate switching device
WO2022109318A1 (en) * 2020-11-20 2022-05-27 Bray International, Inc. Butterfly valve seat and valve seat cavity

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497317A1 (en) * 1980-12-31 1982-07-02 Masoneilan Int Inc FLUID PRESSURE JOINT FOR BUTTERFLY VALVES
WO2020073569A1 (en) * 2018-10-11 2020-04-16 北京航天动力研究所 Fast blind plate switching device
US11248709B2 (en) 2018-10-11 2022-02-15 Beijing Aerospace Propulsion Institute Fast blind plate switching device
WO2022109318A1 (en) * 2020-11-20 2022-05-27 Bray International, Inc. Butterfly valve seat and valve seat cavity

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