GB1479685A - Method and apparatus for checking the pressure of a gas stored in a maintained-pressure type fire extinguisher - Google Patents

Method and apparatus for checking the pressure of a gas stored in a maintained-pressure type fire extinguisher

Info

Publication number
GB1479685A
GB1479685A GB3220974A GB3220974A GB1479685A GB 1479685 A GB1479685 A GB 1479685A GB 3220974 A GB3220974 A GB 3220974A GB 3220974 A GB3220974 A GB 3220974A GB 1479685 A GB1479685 A GB 1479685A
Authority
GB
United Kingdom
Prior art keywords
pressure
extinguisher
gas
adapter
source
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
GB3220974A
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.)
NU SWIFT INT Ltd
Original Assignee
NU SWIFT INT 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 NU SWIFT INT Ltd filed Critical NU SWIFT INT Ltd
Priority to GB3220974A priority Critical patent/GB1479685A/en
Publication of GB1479685A publication Critical patent/GB1479685A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/0007—Fluidic connecting means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
    • G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

1479685 Testing pressure in fire extinguishers; leak testing NU-SWIFT INTERNATIONAL Ltd. 19 July 1974 32209/74 Headings G1L and G1S To check the gas-pressure in a maintained pressure type fire extinguisher 10 in case of leakage, the interior of the extinguisher is communicated e.g. by means of a 3-way adapter 40, Fig. 1, with a source of gas 42 at a pressure known to be higher than that in the extinguisher, and with a pressure gauge 44, the combined pressure of the gases being measured by the gauge. As shown the adapter 40 is fitted on to the filling valve of the extinguisher and a valve 76 is opened so that the adapter is filled with high-pressure gas from source 42. The valve 76 is then shut. By turning a handle 64, a spindle 60 in the adapter can then be rotated to unscrew and lift the sealing plug 22 of the filling valve thereby allowing communication between the interiors of the extinguisher and the adapter 40 via grooves 31, the resultant pressure of the mixed gases, which is only marginally altered by the small volume of gas from source 42 added to the gas in the extinguisher, being measured by gauge 44. The use of a high-pressure source 42 precludes leakage of gas from the extinguisher. A bleed valve 80 may be fitted to the adapter.
GB3220974A 1974-07-19 1974-07-19 Method and apparatus for checking the pressure of a gas stored in a maintained-pressure type fire extinguisher Expired GB1479685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3220974A GB1479685A (en) 1974-07-19 1974-07-19 Method and apparatus for checking the pressure of a gas stored in a maintained-pressure type fire extinguisher

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3220974A GB1479685A (en) 1974-07-19 1974-07-19 Method and apparatus for checking the pressure of a gas stored in a maintained-pressure type fire extinguisher

Publications (1)

Publication Number Publication Date
GB1479685A true GB1479685A (en) 1977-07-13

Family

ID=10335006

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3220974A Expired GB1479685A (en) 1974-07-19 1974-07-19 Method and apparatus for checking the pressure of a gas stored in a maintained-pressure type fire extinguisher

Country Status (1)

Country Link
GB (1) GB1479685A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402925A1 (en) * 1977-09-08 1979-04-06 Westinghouse Electric Corp PROCESS FOR VERIFYING THE PRESSURE IN A NUCLEAR REACTOR FUEL BAR
US5548992A (en) * 1995-06-06 1996-08-27 The United States Of America As Represented By The United States Department Of Energy Leak test adapter for containers
CN103630309A (en) * 2013-12-20 2014-03-12 中国人民解放军武汉军械士官学校 Halon fire extinguisher bottle leak detection equipment
CN106730510A (en) * 2016-11-22 2017-05-31 天津航空机电有限公司 A kind of fire-suppression bottle fills joint
EP3690420B1 (en) * 2019-02-01 2023-01-04 Kidde Graviner Limited Improved hydrostatic testing method
CN117705385A (en) * 2024-02-05 2024-03-15 厦门一泰消防科技开发有限公司 Small fire extinguisher tightness detection equipment and detection method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2402925A1 (en) * 1977-09-08 1979-04-06 Westinghouse Electric Corp PROCESS FOR VERIFYING THE PRESSURE IN A NUCLEAR REACTOR FUEL BAR
US5548992A (en) * 1995-06-06 1996-08-27 The United States Of America As Represented By The United States Department Of Energy Leak test adapter for containers
CN103630309A (en) * 2013-12-20 2014-03-12 中国人民解放军武汉军械士官学校 Halon fire extinguisher bottle leak detection equipment
CN106730510A (en) * 2016-11-22 2017-05-31 天津航空机电有限公司 A kind of fire-suppression bottle fills joint
CN106730510B (en) * 2016-11-22 2020-04-03 天津航空机电有限公司 Fire-extinguishing bottle filling joint
EP3690420B1 (en) * 2019-02-01 2023-01-04 Kidde Graviner Limited Improved hydrostatic testing method
CN117705385A (en) * 2024-02-05 2024-03-15 厦门一泰消防科技开发有限公司 Small fire extinguisher tightness detection equipment and detection method thereof
CN117705385B (en) * 2024-02-05 2024-04-26 厦门一泰消防科技开发有限公司 Small fire extinguisher tightness detection equipment and detection method thereof

Similar Documents

Publication Publication Date Title
GB1479685A (en) Method and apparatus for checking the pressure of a gas stored in a maintained-pressure type fire extinguisher
WO2020139140A3 (en) Individual closed-circuit rebreather for underwater diving
ES426143A1 (en) Method for checking tightness of hollow bodies and more particularly of heat exchangers, and device for embodying said method
GB1273379A (en) Method of apparatus for testing the fluid tightness of an article etc.
GB1504039A (en) Dispensing nozzles
US3164979A (en) Pneumatic or gas pressure control apparatus
US2661885A (en) Apparatus for charging liquid products and volatile propellants into pressure containers
GB1465961A (en) Method of manufacturing capsules containing gaseous radio isotopes
GB1174314A (en) A Dispensing Device for Gases Under Pressure.
CN207318028U (en) A kind of test device for air tightness based on fire extinguisher
GB961616A (en) Process and apparatus for leak detection
CN107748241B (en) Comprehensive simulation test device for hydraulic fracturing and gas outburst
GB1044686A (en) Valves for controlling the flow of fluid under pressure
GB621019A (en) High pressure fluid media containers, and method of filling and discharging the same
CN204767108U (en) Fire extinguisher of piston river system fire extinguishing agent
GB1337379A (en) Method and apparatus for testing for overall tightness
DE644417C (en) Method and device for testing housings for electrical machines, transformers and devices for explosion safety
US2675941A (en) Apparatus for filling gas cylinders under heavy pressure
SU150248A1 (en) Device for filling containers with condensed gas at excessive pressure
GB735204A (en) Improvements relating to the testing of dough
FR2281292A1 (en) Leakage indicator for double skinned storage containers - has vacuum pump connected to cavity between double skin
GB868700A (en) Apparatus for blasting down material such as coal in a mine and valve for use in such apparatus
GB215015A (en) Improvements in gas indicating devices
AU244530B2 (en) Shutoff and safety valves for pressure gas cylinders andother pressure containers for storing high-pressure gases and containers
SU369320A1 (en) METHOD OF CHECKING THE TIGHTNESS OF PIPELINES AND HOLLOW UNITS

Legal Events

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