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AS 1349-1986
[Current]Bourdon tube pressure and vacuum gauges
Specifies requirements for gauges within the pressure range -100 kPa to +100 000 kPa, and the nominal size range 50 mm to 300 mm. Compound gauges (pressure and vacuum) are also included. Two accuracy grades are specified, namely test gauges and industrial gauges. The gauges are normally graduated directly in kilopascals, but scale factors of powers to ten may be used where required for scale clarity or specified by the purchaser. Other units of pressure may be specified by the purchaser for special applications. The gauges are generally suitable for use with common fluids such as air, oil, water, or steam, but special provision is made for high pressure gauges, and gauges which are intended for use with oxygen and acetylene, or other reactive gases. Appendices provide notes of correction of deadweight testers and manometers, recommendations for the installation and use of gauges, and purchasing guidelines.
Published: 05/09/1986
Pages: 21
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
1 SCOPE AND GENERAL
1.1 SCOPE
1.2 REFERENCED DOCUMENTS
1.3 DEFINITIONS
1.4 UNIT OF PRESSURE
2 GAUGE SIZES AND SCALE RANGES
2.1 GAUGE SIZES
2.1.1 Test gauge
2.1.2 Industrial gauge
2.2 SCALE RANGES
2.2.1 Test gauge
2.2.2 Industrial gauge
3 DESIGN AND CONSTRUCTION
3.1 CASE
3.1.1 Material
3.1.2 Finish
3.1.3 Back of gauge
3.1.4 Dust and splash proofing
3.1.5 Window
3.1.6 Turning radius
3.1.7 Mounting of circular surface-mounting gauges
3.1.8 Mounting of circular flush-mounting gauges
3.2 SHANK
3.2.1 Material
3.2.2 Construction
3.2.3 Accessibility
3.2.4 Screw threads
3.2.5 Shank dimensions
3.2.6 Seating
3.2.7 Seating washers
3.2.8 Union connections
3.3 BOURDON TUBE AND MOVEMENT
3.3.1 Tube anchorage material
3.3.2 Construction of tube anchorage
3.3.3 Material of Bourdon tube
3.3.4 Mounting of Bourdon tube
3.3.5 Movement
3.4 DIAL AND POINTER
3.4.1 Material
3.4.2 Pointer
3.4.3 Pointer stop
3.5 DESIGNATION OF THE SCALE UNIT
3.6 SCALE MARKING
3.6.1 General
3.6.2 Direction of indication
3.6.3 Graduation and arrangement
3.6.4 Industrial gauges
3.6.5 Test gauges
3.6.6 Receiver gauges
3.7 PROTECTION AGAINST CORROSION
3.8 REQUIREMENTS FOR SPECIFIC SERVICE TYPE PRESSURE GAUGES
3.8.1 Gauges for use with high pressure gas
3.8.2 Pressure gauges for use with oxygen and other oxidants
3.8.3 Gauges for use with acetylene
3.9 GENERAL SAFETY REQUIREMENTS
4 PERFORMANCE AND TESTING
4.1 ACCURACY
4.1.1 Test gauges
4.1.2 Industrial gauges
4.1.2.1 Accuracy of gauges, nominal size above 63 mm
4.1.2.2 Accuracy of gauges, nominal size 63 mm and below
4.2 OVERLOAD
4.2.1 Test gauges
4.2.2 Industrial gauges
4.3 TEST APPARATUS
4.3.1 Test gauges
4.3.2 Industrial gauges
4.4 TEST PROCEDURES
4.4.1 General
4.4.2 Test gauges
4.4.3 Industrial gauges
4.5 TEST REPORT AND RECORDS
4.5.1 Test report
4.5.2 Test records
5 MARKING AND PACKAGING
5.1 MARKING
5.2 PACKAGING
APPENDIX A
A1 CORRECTIONS TO DEADWEIGHT TESTERS
A2 CORRECTIONS TO MANOMETERS
APPENDIX B
B1 GENERAL
B2 METHODS OF MAKING A JOINT
B2.1 Direct-mounting gauges (i.e. gauges mounted by their connection)
B2.2 Surface-mounting and flush-mounting gauges (i.e. gauges mounted by a flange)
B3 GAUGES FOR STEAM
B4 TEMPERATURE PROTECTION
B5 POSITION OF GAUGE
B6 GAUGES WITH BLOW-OUT BACK
B7 EFFECT OF LIQUID COLUMNS
B8 RAPIDLY FLUCTUATING PRESSURES, SHOCK PRESSURES AND VIBRATION
APPENDIX C
C1 INFORMATION TO BE SUPPLIED
C2 ADDITIONAL INFORMATION
Cited references in this standard
BS 3693.2
Recommendations for the Design of Scales and Indexes, Part 2-Indicating Instruments to be read to 0.33-1.25 per cent Resolution
BS 3693.1
Recommendations for the Design of Scales and Indexes, Part 1-Instruments of Bold Presentation and for Rapid Reading
BS 3127
Specification for Ferrous and Non-ferrous Bourdon Tubing
ANSI B2.2
Dryseal Pipe Thread
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