ZA765213B - Pressure relief valve - Google Patents

Pressure relief valve

Info

Publication number
ZA765213B
ZA765213B ZA765213A ZA765213A ZA765213B ZA 765213 B ZA765213 B ZA 765213B ZA 765213 A ZA765213 A ZA 765213A ZA 765213 A ZA765213 A ZA 765213A ZA 765213 B ZA765213 B ZA 765213B
Authority
ZA
South Africa
Prior art keywords
relief valve
pressure relief
valve
pressure
relief
Prior art date
Application number
ZA765213A
Other languages
English (en)
Inventor
G Dowty
Original Assignee
Dowty Mining Equipment Ltd
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 Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Publication of ZA765213B publication Critical patent/ZA765213B/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0433—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with vibration preventing means
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0493—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with a spring other than a helicoidal spring
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/01—Damping of valve members
    • F16K47/011—Damping of valve members by means of a dashpot
    • F16K47/0111—Damping of valve members by means of a dashpot the valve members comprising a plunger sliding within a fixed dashpot
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/785—With retarder or dashpot
    • Y10T137/7852—End of valve moves inside dashpot chamber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Safety Valves (AREA)
ZA765213A 1975-09-09 1976-08-31 Pressure relief valve ZA765213B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36950/75A GB1553676A (en) 1975-09-09 1975-09-09 Pressure relief valve

Publications (1)

Publication Number Publication Date
ZA765213B true ZA765213B (en) 1977-10-26

Family

ID=10392519

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA765213A ZA765213B (en) 1975-09-09 1976-08-31 Pressure relief valve

Country Status (5)

Country Link
US (1) US4091838A (de)
DE (1) DE2640470A1 (de)
GB (1) GB1553676A (de)
PL (1) PL117422B1 (de)
ZA (1) ZA765213B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2748107A1 (de) * 1977-10-27 1979-05-03 Schenck Ag Carl Differenzdruckbegrenzungsventil
IT1111859B (it) * 1979-02-14 1986-01-13 Benditalia Spa Valvola di sicurezza per circuiti di comando a depressione,particolarmente pr autoveicoli
DE10059382A1 (de) * 1999-12-10 2001-06-13 Luk Lamellen & Kupplungsbau Hydraulisches System
DE10350914A1 (de) * 2003-10-31 2005-06-09 Hydac Technology Gmbh Ventil, insbesondere Gassicherheitsventil
US9057181B2 (en) * 2012-11-09 2015-06-16 Fluid Dynamics Holdings, LLC Water flow valve for improving accuracy of meter readings in communication with a water distribution system
DE102014001306A1 (de) * 2014-01-31 2015-08-06 GM Global Technology Operations LLC (n. d. Gesetzen des Staates Delaware) Ventileinrichtung und Kraftfahrzeug
US11313109B2 (en) 2018-04-05 2022-04-26 Microflow, Llc, A Delaware Limited Liability Company Valve for controlling water flow and for improving water meter health and readings
US11174966B1 (en) * 2020-03-09 2021-11-16 Blue Origin, Llc Fluid damped check valve, and associated systems and mei'hods
US11391243B1 (en) 2020-03-09 2022-07-19 Blue Origin, Llc Seal for gimbaling and/or fixed rocket engine nozzles, and associated systems and methods
US11614176B1 (en) * 2022-08-29 2023-03-28 Prince Mohammad Bin Fahd University Relief valve device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US677776A (en) * 1900-05-12 1901-07-02 Locomobile Co America Pump.
US2598630A (en) * 1945-02-27 1952-05-27 Glen W Winberg Back-pressure valve
US2429658A (en) * 1945-06-13 1947-10-28 Marvin O Young Valve
US3437110A (en) * 1965-08-16 1969-04-08 Citation Mfg Co Inc Fluid pressure relief valve
US3557826A (en) * 1967-09-06 1971-01-26 Heinz Albrecht Safety valve for protecting hydraulic mine props against overloads
GB1276099A (en) * 1968-10-15 1972-06-01 Cav Ltd Liquid fuel injection pumping apparatus
US3838625A (en) * 1971-01-15 1974-10-01 Kloeckner Werke Ag Hydraulic double telescoping mine prop
US3947004A (en) * 1974-12-23 1976-03-30 Tayco Developments, Inc. Liquid spring, vehicle suspension system and method for producing a low variance in natural frequency over a predetermined load range

Also Published As

Publication number Publication date
GB1553676A (en) 1979-09-26
US4091838A (en) 1978-05-30
DE2640470A1 (de) 1977-03-31
PL117422B1 (en) 1981-08-31

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