GB1135916A - An adjustable needle valve for vacuum installations - Google Patents

An adjustable needle valve for vacuum installations

Info

Publication number
GB1135916A
GB1135916A GB905467A GB905467A GB1135916A GB 1135916 A GB1135916 A GB 1135916A GB 905467 A GB905467 A GB 905467A GB 905467 A GB905467 A GB 905467A GB 1135916 A GB1135916 A GB 1135916A
Authority
GB
United Kingdom
Prior art keywords
needle
seat
valve
holder
sleeve
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
GB905467A
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.)
Leybold Holding AG
Original Assignee
Leybold Holding AG
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 Leybold Holding AG filed Critical Leybold Holding AG
Publication of GB1135916A publication Critical patent/GB1135916A/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
    • F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
    • F16K51/02—Other details not peculiar to particular types of valves or cut-off apparatus specially adapted for high-vacuum installations
    • 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
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • 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
    • F16K1/32—Details
    • F16K1/48—Attaching valve members to screw-spindles

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Details Of Valves (AREA)

Abstract

1,135,916. Valves. LEYBOLD HOLDING A.G. 24 Feb., 1967 [25 March, 1966], No. 9054/67. Heading F2V. Valve for vacuum equipment comprises a valve needle 10 fixed to a holder 7 having a passage 9 and movable in relation to a seat 5 by a differential screw drive including a stem 11 fast with the holder and threadedly engaged in a sleeve 12 screwed into an end 1a of the valve body 1. The seat orifice is initially smaller than the needle, e.g. of 0À5 mm. diameter with a needle of 0À8 mm. maximum diameter. The seat is fully formed by operating the valve to force the needle in until there is no detectable leakage between inlet 2 and outlet 3, withdrawing and advancing the needle again until there is a perceptible change in reaction of the screw drive, and then setting adjustable stop screws 14, 15. A spring 19 takes up backlash. The holder 7 is fixed to a bellows 8 fast at its other end with the body. The seat may be of copper or brass and is retained by a screwed sleeve 4. The needle may be of hard polished steel. The outside thread on the sleeve is of 20% greater pitch than the inside thread.
GB905467A 1966-03-25 1967-02-24 An adjustable needle valve for vacuum installations Expired GB1135916A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0053196 1966-03-25

Publications (1)

Publication Number Publication Date
GB1135916A true GB1135916A (en) 1968-12-11

Family

ID=7275213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB905467A Expired GB1135916A (en) 1966-03-25 1967-02-24 An adjustable needle valve for vacuum installations

Country Status (3)

Country Link
CH (1) CH455423A (en)
FR (1) FR1510503A (en)
GB (1) GB1135916A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992015813A1 (en) * 1991-03-04 1992-09-17 Leybold Aktiengesellschaft Process for manufacturing the internal parts of a vacuum valve having a valve disc and pleated bellows, and internal valve parts manufactured by this process
GB2256028A (en) * 1991-05-20 1992-11-25 Crane Ltd Fluid-flow valve
CN113623181A (en) * 2021-07-23 2021-11-09 张家港中集圣达因低温装备有限公司 Vacuum pumping device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992015813A1 (en) * 1991-03-04 1992-09-17 Leybold Aktiengesellschaft Process for manufacturing the internal parts of a vacuum valve having a valve disc and pleated bellows, and internal valve parts manufactured by this process
GB2256028A (en) * 1991-05-20 1992-11-25 Crane Ltd Fluid-flow valve
GB2256028B (en) * 1991-05-20 1995-11-01 Crane Ltd Fluid-flow valve
CN113623181A (en) * 2021-07-23 2021-11-09 张家港中集圣达因低温装备有限公司 Vacuum pumping device

Also Published As

Publication number Publication date
FR1510503A (en) 1968-01-19
CH455423A (en) 1968-07-15

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