GB1405424A - Leak detection - Google Patents

Leak detection

Info

Publication number
GB1405424A
GB1405424A GB3937871A GB3937871A GB1405424A GB 1405424 A GB1405424 A GB 1405424A GB 3937871 A GB3937871 A GB 3937871A GB 3937871 A GB3937871 A GB 3937871A GB 1405424 A GB1405424 A GB 1405424A
Authority
GB
United Kingdom
Prior art keywords
aug
pipes
leak detection
bolts
flanges
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
GB3937871A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3939871A priority Critical patent/GB1362208A/en
Priority to GB3937871A priority patent/GB1405424A/en
Publication of GB1405424A publication Critical patent/GB1405424A/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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/365—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0675—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever
    • G05D16/0677—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever using one membrane without spring

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

1405424 Testing pipes for leaks IMPERIAL CHEMICAL INDUSTRIES Ltd 15 Aug 1972 [23 Aug 1971] 39378/71 Heading G1S Pipes 1 and 2 having flanges 3, 4 and a gasket 5 are held together e.g. by bolts (not shown) and surrounded at their joint by a flexible band 8 having upstanding end flanges 9 and clamping bolts 10. A tube 11 passes from the band 8, through the wall of a surrounding cold box 12 via a connector 16 and a rubber cushion 18, to a two way tap 13 serving both as a vent and a sampler of any gas escaping from 1 and 2.
GB3937871A 1971-08-23 1971-08-23 Leak detection Expired GB1405424A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3939871A GB1362208A (en) 1971-08-23 1971-08-23 Pressure governors
GB3937871A GB1405424A (en) 1971-08-23 1971-08-23 Leak detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3937871A GB1405424A (en) 1971-08-23 1971-08-23 Leak detection

Publications (1)

Publication Number Publication Date
GB1405424A true GB1405424A (en) 1975-09-10

Family

ID=10409231

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3937871A Expired GB1405424A (en) 1971-08-23 1971-08-23 Leak detection
GB3939871A Expired GB1362208A (en) 1971-08-23 1971-08-23 Pressure governors

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3939871A Expired GB1362208A (en) 1971-08-23 1971-08-23 Pressure governors

Country Status (1)

Country Link
GB (2) GB1405424A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6715914B1 (en) * 2002-06-26 2004-04-06 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Apparatus and method for thermal performance testing of pipelines and piping systems

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO412896A0 (en) * 1996-12-11 1997-01-09 Upham, John D. Electromagnetic gas injection valve
GB2423348B (en) * 2003-03-03 2007-02-14 Tokai Corp Pressure regulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6715914B1 (en) * 2002-06-26 2004-04-06 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Apparatus and method for thermal performance testing of pipelines and piping systems

Also Published As

Publication number Publication date
GB1362208A (en) 1974-07-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee