GB750185A - Gate valves - Google Patents

Gate valves

Info

Publication number
GB750185A
GB750185A GB2822853A GB2822853A GB750185A GB 750185 A GB750185 A GB 750185A GB 2822853 A GB2822853 A GB 2822853A GB 2822853 A GB2822853 A GB 2822853A GB 750185 A GB750185 A GB 750185A
Authority
GB
United Kingdom
Prior art keywords
gate
pistons
valve
pressure
supporting member
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
GB2822853A
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 GB2822853A priority Critical patent/GB750185A/en
Publication of GB750185A publication Critical patent/GB750185A/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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
    • F16K3/20—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the seats
    • F16K3/207—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the seats by means of hydraulic forces

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)

Abstract

750,185. Gate valves. SEAMARK, L. M. C. Oct. 12, 1954 [Oct. 13, 1953], No. 28228/53. Class 135. In a gate valve, the gate is held in the closed position under a pressure greater than the fluid pressure within the valve casing and such pressure is applied through slidably mounted members, such as the pistons 17, which, in the closing movement of the gate, cause a pressure to be applied on opposite sides of the gate in a direction transverse to its opening and closing movements. As shown, the gate 6 which is hollow and of rectangular cross-section is reciprocated by an axially-fixed screwed spindle 13 rotatably mounted in the valve cover 2. The spindle 13 co-operates with a flanged nut 15 received in a transverse slot 14 in the gate. The flange 15a of the nut in the closed position bears on flanged pistons 16 mounted for vertical movement against springs 20 in a gate supporting member 5. The pistons 17 have axial passages 21 which when closed by the flange 15a cause fluid pressure to be applied through branched channels 22 to grooves in resilient rings 24 on each side of the valve. The rings 24 are mounted in grooves in the supporting member 5 and exert pressure on sealing rings 25 engaging the gate. Screw-pins 26 engage slots in the pistons to limit the vertical movement of the pistons. The gate has a bore 6a which is aligned with a through bore 3 when the valve is open. Downward movement of the gate is limited by an adjustable screw stop 10 arranged between legs 11 on the valve casing. A sealing strip 31 is mounted in compression between tne valve cover 2 and the casing 1. In a modification the pistons 17 are mounted in the valve casing proper and not in the supporting member 5.
GB2822853A 1953-10-13 1953-10-13 Gate valves Expired GB750185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2822853A GB750185A (en) 1953-10-13 1953-10-13 Gate valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2822853A GB750185A (en) 1953-10-13 1953-10-13 Gate valves

Publications (1)

Publication Number Publication Date
GB750185A true GB750185A (en) 1956-06-13

Family

ID=10272349

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2822853A Expired GB750185A (en) 1953-10-13 1953-10-13 Gate valves

Country Status (1)

Country Link
GB (1) GB750185A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1264191B (en) * 1963-01-15 1968-03-21 Hochvakuum Appbau Emil Kammere Gate valve
US4268007A (en) * 1976-07-22 1981-05-19 Chittenden Jeremy B Valve actuating equipment
US4471943A (en) * 1982-01-27 1984-09-18 Nl Industries, Inc. Valve assembly and seat
CN106195301A (en) * 2016-08-31 2016-12-07 中材建设有限公司 Electric brake plate valve
CN114877088A (en) * 2022-04-28 2022-08-09 上海高中压阀门股份有限公司 Flat gate valve with excellent sealing performance under low pressure condition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1264191B (en) * 1963-01-15 1968-03-21 Hochvakuum Appbau Emil Kammere Gate valve
US4268007A (en) * 1976-07-22 1981-05-19 Chittenden Jeremy B Valve actuating equipment
US4471943A (en) * 1982-01-27 1984-09-18 Nl Industries, Inc. Valve assembly and seat
CN106195301A (en) * 2016-08-31 2016-12-07 中材建设有限公司 Electric brake plate valve
CN114877088A (en) * 2022-04-28 2022-08-09 上海高中压阀门股份有限公司 Flat gate valve with excellent sealing performance under low pressure condition

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