CA2077280A1 - Valve controlled in dependence on differential pressure with desired-value setting facility - Google Patents

Valve controlled in dependence on differential pressure with desired-value setting facility

Info

Publication number
CA2077280A1
CA2077280A1 CA2077280A CA2077280A CA2077280A1 CA 2077280 A1 CA2077280 A1 CA 2077280A1 CA 2077280 A CA2077280 A CA 2077280A CA 2077280 A CA2077280 A CA 2077280A CA 2077280 A1 CA2077280 A1 CA 2077280A1
Authority
CA
Canada
Prior art keywords
valve
dependence
differential pressure
spring
point
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.)
Granted
Application number
CA2077280A
Other languages
French (fr)
Other versions
CA2077280C (en
Inventor
Jan Strandgaard
Jorgen Seindal Wiwe
Daniel Skjold Schmidt
Bjarne Straede
Niels Peter Grand Graversen
Gitte Jorgensen Kolbeck
Mogens Andersen
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.)
Danfoss AS
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
Publication of CA2077280A1 publication Critical patent/CA2077280A1/en
Application granted granted Critical
Publication of CA2077280C publication Critical patent/CA2077280C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G05D16/163—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using membranes within the main valve
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/028—Controlling a pressure difference

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Control Of Fluid Pressure (AREA)
  • Safety Valves (AREA)

Abstract

A valve controlled in dependence on differential pressure with a set-point setting facility, comprises a valve housing (4), a diaphragm housing (16), and a setting device (3) which is removable as a unit from the diaphragm housing (16). A pin (36) connected to the diaphragm (23) projects in a sealed manner from the diaphragm housing (16). The set-point spring (50) extends between an adjustable supporting plate (51) and a spring plate (52). The forces of the set-point spring (50) are transferred by way of a releasable coupling (64) to the pin (36). The coupling (64) is in particular designed to transfer tensile forces. In this manner, the set-point spring can be adjusted or exchanged at any time. In addition, detrimental transverse forces originating in the set-point spring are prevented from being transferred to the valve rod. The valve is therefore accessible and of low friction.
CA002077280A 1991-09-24 1992-09-01 Valve controlled in dependence on differential pressure with desired-value setting facility Expired - Fee Related CA2077280C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4131708A DE4131708C1 (en) 1991-09-24 1991-09-24 Valve controlled by differential pressure - has loading controlled by helical compression spring fitted in easily removable unit.
DEP4131708.4 1991-09-24

Publications (2)

Publication Number Publication Date
CA2077280A1 true CA2077280A1 (en) 1993-03-25
CA2077280C CA2077280C (en) 1998-05-19

Family

ID=6441326

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002077280A Expired - Fee Related CA2077280C (en) 1991-09-24 1992-09-01 Valve controlled in dependence on differential pressure with desired-value setting facility

Country Status (5)

Country Link
CA (1) CA2077280C (en)
DE (1) DE4131708C1 (en)
DK (1) DK174166B1 (en)
PL (1) PL169644B1 (en)
RU (1) RU2090794C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9909681B2 (en) 2014-12-22 2018-03-06 Samson Ag Diaphragm actuator for a control valve

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100410601C (en) * 2002-12-05 2008-08-13 周纪昌 Pressure regulation relief valve for air conditioner
DK178871B1 (en) * 2015-11-05 2017-04-10 Danfoss As Valve with detachable regulation unit
EP3193056A1 (en) * 2016-01-15 2017-07-19 Danfoss A/S Valve arrangement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3235274C2 (en) * 1982-09-23 1986-07-31 Samson Ag, 6000 Frankfurt Safety device for control devices, such as pressure reducers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9909681B2 (en) 2014-12-22 2018-03-06 Samson Ag Diaphragm actuator for a control valve

Also Published As

Publication number Publication date
PL169644B1 (en) 1996-08-30
PL296033A1 (en) 1993-05-17
RU2090794C1 (en) 1997-09-20
CA2077280C (en) 1998-05-19
DK118392D0 (en) 1992-09-24
DE4131708C1 (en) 1993-04-29
DK174166B1 (en) 2002-08-05
DK118392A (en) 1993-03-25

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed