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ASME B40.100 - 2022 - Pressure Gauges and Gauge Attachments, 2022
- CONTENTS
- FOREWORD
- ASME B40 COMMITTEE ROSTER
- CORRESPONDENCE WITH THE B40 COMMITTEE
- Section 1 Scope, References, Definitions [Go to Page]
- 1-1 SCOPE
- 1-2 REFERENCES
- 1-3 DEFINITIONS
- Section 2 Gauges: Pressure-Indicating Dial Type — Elastic Element [Go to Page]
- 2-1 PRESSURE GAUGES, GENERAL
- 2-2 GENERAL RECOMMENDATIONS [Go to Page]
- 2-2.1 Gauge Sizes
- 2-2.2 Typical Ranges.
- 2-2.3 Construction
- 2-2.4 Accuracy
- 2-2.5 Installation
- 2-3 SAFETY [Go to Page]
- 2-3.1 General Discussion
- 2-3.2 Safety Recommendations
- 2-4 CLEANLINESS [Go to Page]
- 2-4.1 General
- 2-4.2 Cleanliness Levels
- 2-4.3 Inspection for Cleanliness
- 2-4.4 Packaging
- 2-5 PRESSURE GAUGE TESTING [Go to Page]
- 2-5.1 Calibration Standards
- 2-5.2 Verification Test Procedures
- 2-6 ORDERING PARAMETERS AND RELATED STANDARDS [Go to Page]
- 2-6.1 Order Checklist [Go to Page]
- Figure 2-5.2.4.3-1 Hysteresis and Offset Error
- 2-6.1.1 Assistance Not Required.
- 2-6.1.2 Moderate Assistance Required.
- 2-6.1.3 Detailed Assistance Required.
- 2-6.2 Conversion Factors (Customary Units to SI Units) [Go to Page]
- Table 2-6.2-1 Conversion Factors
- Section 3 Diaphragm Seals [Go to Page]
- 3-1 DIAPHRAGM SEALS, GENERAL [Go to Page]
- 3-1.1 Mounting of Diaphragm Seals.
- 3-1.2 Construction
- 3-1.3 Material Selection
- 3-1.4 Fill Fluids and Selection
- 3-1.5 Selection of a Diaphragm Seal
- 3-1.6 Reuse of Diaphragm Seals
- 3-1.7 Safety
- 3-1.8 Filling Diaphragm Seals
- 3-1.9 Testing
- Section 4 Snubbers [Go to Page]
- 4-1 PURPOSE
- 4-2 GENERAL [Go to Page]
- 4-2.1 Connections
- 4-2.2 Materials
- 4-2.3 Types of Snubbers
- 4-2.4 Selection
- 4-2.5 Performance
- 4-3 SAFETY [Go to Page]
- 4-3.1 Scope
- 4-3.2 General Discussion
- 4-4 TESTING [Go to Page]
- 4-4.1 General
- 4-4.2 Surge Generation
- 4-4.3 Comparison Testing
- 4-4.4 Test Fluid
- 4-4.5 Test
- 4-4.6 Equipment
- 4-4.7 Test Procedure
- Section 5 Pressure Limiter Valves [Go to Page]
- 5-1 GENERAL [Go to Page]
- 5-1.1 Purpose
- 5-1.2 Principle of Operation
- 5-2 CONSTRUCTION [Go to Page]
- 5-2.1 Piston Type
- 5-2.2 Diaphragm Type
- 5-2.3 Relief Valve Type
- 5-2.4 Bellows Type
- 5-3 SELECTION OF PRESSURE LIMITER VALVES [Go to Page]
- 5-3.1 System Pressure
- 5-3.2 Closing Range
- 5-3.3 Reopening Pressure
- 5-3.4 Materials of Construction
- 5-3.5 Pulsation/Surge Dampening
- 5-3.6 Repeatability of Closing Pressure
- 5-3.7 Rate of Pressure Change
- 5-3.8 External Venting
- 5-3.9 Suspended Solids
- 5-4 INSTALLATION [Go to Page]
- 5-4.1 Connections
- 5-4.2 Methods of Installation
- 5-4.3 Setting Pressure Limiter Valves
- 5-5 SAFETY [Go to Page]
- 5-5.1 Scope
- 5-5.2 General Discussion
- 5-6 REUSE OF PRESSURE LIMITER VALVES [Go to Page]
- 5-6.1 Chemical Incompatibility
- 5-6.2 Corrosion/Chemical Attack
- 5-7 TESTING [Go to Page]
- 5-7.1 General
- 5-7.2 Warning
- 5-7.3 Evaluation Procedures
- 5-7.4 Production Testing
- Figures [Go to Page]
- Figure 1-3-1 Elastic Elements
- Figure 1-3-2 Cases
- Figure 1-3‐3 Cases/Mounting
- Figure 1-3‐4 Example of a Retard Gauge
- Figure 1-3‐5 Example of a Suppressed Scale Gauge
- Figure 2-1-1 Basic Pressure Terms
- Figure 2-1-2 Typical Pressure Gauge Components (C-Type Bourdon Tube Illustrated)
- Figure 2-2.3.1.5-1 Recommended Case and Mounting Dimensions
- Figure 2-5.2.4.3-1 Hysteresis and Offset Error
- Figure 3-1.2.2.1-1 Upper Housing, Continuous Duty
- Figure 3-1.2.2.3-1 Upper Housing, Noncontinuous Duty
- Figure 3-1.2.2.4-1 Upper Housing, Removable (With Capsule Assembly)
- Figure 3-1.2.2.4-2 Upper Housing, Removable
- Figure 3-1.2.2.5-1 Upper Housing, Nonremovable
- Figure 3-1.2.2.6-1 Upper Housing, Flush Flanged
- Figure 3-1.2.2.8-1 Upper Housing, Inserted Flange
- Figure 3-1.2.2.9-1 Upper Housing, Flanged Seal
- Figure 3-1.2.6-1 Lower Housing
- Figure 3-1.2.7-1 Fastening Methods
- Figure 3-1.2.10.2-1 Flanged Seal
- Figure 3-1.2.10.3-1 Threaded Seal
- Figure 3-1.2.10.3-2 Flanged Seal With Sleeve
- Figure 3-1.2.10.3-3 Butt Weld Seal
- Figure 3-1.2.10.3-4 Socket Weld Seal
- Figure 3-1.2.10.3-5 Welded Seal Saddle
- Figure 3-1.2.10.5-1 In-Line Seal (Crevice Free)
- Figure 3-1.2.11.1-1 Flushing Ring
- Figure 3-1.2.14-1 Gauge Isolator
- Figure 3-1.8.2-1 Sealed Setting
- Figure 3-1.8.2-2 Fill Setting
- Figure 4-2.3.1-1 Fixed Orifice
- Figure 4-2.3.2-1 Needle Valve
- Figure 4-2.3.3-1 Porous Metal
- Figure 4-2.3.4-1 Felt Plug — Fluid Filled
- Figure 4-2.3.5-1 Piston
- Figure 4-4.5.2-1 Test Setup
- Figure 4-4.5.2-2 Typical Input Surge
- Figure 4-4.5.3-1 Desirable Snubber Output
- Figure 5-2.1-1 Piston Type
- Figure 5-2.2-1 Diaphragm Type
- Figure 5-2.3-1 Relief Valve Type
- Figure 5-2.4-1 Bellows Type
- Figure III-3.3.1.1-1 Case Design
- Figure III-3.3.2.2-1 O-Ring Union Assembly
- Figure III-3.3.5-1 O-Ring Union Nut/Threaded End Detail
- Figure III-6.9-1 Load Test
- Figure IV-3.1.1-1 O-Ring Union Nut/Threaded End Detail
- Figure IV-4.5.2.1-1Suggested Dampening Test Setup
- Tables [Go to Page]
- Table 2-2.2-1 Positive Pressure Ranges
- Table 2-2.2-2 Compound Pressure Ranges
- Table 2-2.3.2.1-1 Definitions of Pressure Various Units
- Table 2-2.4-1 Accuracy Grades/Classes and Recommended Number of Test Points
- Table 2-4.2-1 Cleanliness Levels
- Table 2-6.2-1 Conversion Factors
- Table I-2.3-1 Proof Pressure Testing Specifications
- Table I-2.4.1-1 Fatigue Testing Cycle Requirements
- Table I-2.7.1-1 Vibration Test Amplitudes
- Table I-3-1 Types and Number of Gauges to Be Tested
- Table I-3-2 Selection of Gauges for Testing
- Table II-3.3-1 Ranges
- Table III-3.2-1 Positive Pressure Range Designators
- Table III-3.2-2 Compound Pressure Range Designators
- Table III-3.2-3 Refrigerant Pressure Gauge Designators
- Table III-3.2-4 Retard Pressure Gauge Designators
- Table III-3.2-5 Caisson Pressure Range Designators
- Table III-3.3.5-1 Pressure Connection Requirements and Applications
- Table III-3.3.6-1 Gauge Connection Positions
- Table III-5.2.1.1-1 Inspection Requirements
- Table III-6.10-1 Stem-Mounted Gauge Vibration
- Table III-6.14-1 Conditions for Pressure Integrity Testing
- Table III-7.2.1-1 Part Identifying Number (PIN)
- Table III-8.4-1 Oxygen Service Ranges
- Table IV-4.2.1-1 Qualification and Conformance Inspections
- Table IV-4.2.2.3-1 AQL for Nonconformities
- Table IV-4.5.1-1 Steady-State Transmission Pressures
- Table IV-4.5.3.3-1 Temperature Cycle
- Table IV-4.5.4.1-1Vibratory Displacement Criteria
- MANDATORY APPENDIX I TEST PROCEDURES USED TO MEASURE NEW GAUGE PERFORMANCE [Go to Page]
- I-1 SCOPE
- I-2 EVALUATION PROCEDURES
- I-3 SELECTION OF GAUGES FOR TESTING
- I-4 REFERENCED DOCUMENTS [Go to Page]
- Table I-3-1 Types and Number of Gauges to Be Tested
- Table I-3-2 Selection of Gauges for Testing
- MANDATORY APPENDIX II GAUGES USED ON REGULATORS [Go to Page]
- II-1 GENERAL
- II-2 SCOPE
- II-3 RECOMMENDATIONS
- II-4 INSTALLATION
- II-5 Referenced Documents
- MANDATORY APPENDIX III SUPPLEMENTAL REQUIREMENTS — NAVAL APPLICATIONS [Go to Page]
- III-1 INTRODUCTION
- III-2 SCOPE
- III-3 GENERAL REQUIREMENTS
- III-4 CLEANLINESS AND PACKAGING
- III-5 VERIFICATION
- III-6 TEST PROCEDURES AND REQUIREMENTS
- III-7 ORDERING PARAMETERS
- III-8 OXYGEN PRESSURE GAUGES
- III-9 REFERENCED DOCUMENTS
- MANDATORY APPENDIX IV SNUBBERS FOR NAVAL APPLICATIONS [Go to Page]
- IV-1 GENERAL
- IV-2 SCOPE
- IV-3 CONNECTIONS
- IV-4 VERIFICATION
- IV-5 ORDERING PARAMETERS
- IV-6 REFERENCES [Go to Page]
