NZ331537A - Pilot-operated safety relief valve assembly - Google Patents

Pilot-operated safety relief valve assembly

Info

Publication number
NZ331537A
NZ331537A NZ331537A NZ33153797A NZ331537A NZ 331537 A NZ331537 A NZ 331537A NZ 331537 A NZ331537 A NZ 331537A NZ 33153797 A NZ33153797 A NZ 33153797A NZ 331537 A NZ331537 A NZ 331537A
Authority
NZ
New Zealand
Prior art keywords
pilot
valve assembly
relief valve
safety relief
operated safety
Prior art date
Application number
NZ331537A
Inventor
Michael Andrew Theodos
Roger Dale Danzy
Original Assignee
Dresser Ind
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
Priority claimed from US08/642,024 external-priority patent/US5725015A/en
Application filed by Dresser Ind filed Critical Dresser Ind
Publication of NZ331537A publication Critical patent/NZ331537A/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
    • G05D16/166—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using pistons within the main valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Safety Valves (AREA)
  • Control Of Fluid Pressure (AREA)
NZ331537A 1996-04-29 1997-01-22 Pilot-operated safety relief valve assembly NZ331537A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/642,024 US5725015A (en) 1996-03-14 1996-04-29 Pilot-operated safety relief valve assembly
PCT/US1997/000944 WO1997041496A1 (en) 1996-04-29 1997-01-22 Pilot-operated safety relief valve assembly

Publications (1)

Publication Number Publication Date
NZ331537A true NZ331537A (en) 1999-07-29

Family

ID=24574856

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ331537A NZ331537A (en) 1996-04-29 1997-01-22 Pilot-operated safety relief valve assembly

Country Status (6)

Country Link
EP (1) EP0898739A4 (en)
AU (1) AU710544B2 (en)
CA (1) CA2252874A1 (en)
EA (1) EA001043B1 (en)
NZ (1) NZ331537A (en)
WO (1) WO1997041496A1 (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1132369B (en) * 1956-10-29 1962-06-28 Johannes Petry Gas pressure regulator
DE1265467B (en) * 1965-04-05 1968-04-04 Pintsch Bamag Ag Pilot operated pressure regulator for high pressure gas
US3456674A (en) * 1966-05-20 1969-07-22 Fisher Governor Co In-line flow,pilot-operated high-pressure gas regulator
US4355657A (en) * 1978-09-18 1982-10-26 Vapor Corporation Pilot operated relief valve
DE2949922C2 (en) * 1979-12-12 1986-08-21 Mannesmann Rexroth GmbH, 8770 Lohr Pilot operated pressure reducing valve
CN1008130B (en) * 1989-05-19 1990-05-23 刘长年 Multifunctional floating pressure control valve
US5396923A (en) * 1992-10-28 1995-03-14 Allen; Donald M. Surge relief apparatus and method

Also Published As

Publication number Publication date
AU710544B2 (en) 1999-09-23
CA2252874A1 (en) 1997-11-06
EA001043B1 (en) 2000-08-28
EA199800964A1 (en) 1999-04-29
EP0898739A1 (en) 1999-03-03
WO1997041496A1 (en) 1997-11-06
EP0898739A4 (en) 1999-11-17
AU1706297A (en) 1997-11-19

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