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eLibrary > ASME BPVC.VI-2023 Section VI, Recommended Rules for the Care and Operation of Heating Boilers >

ASME BPVC.VI-2023 Section VI, Recommended Rules for the Care and Operation of Heating Boilers, 2023

TABLE OF CONTENTS
List of Sections
FOREWORD
STATEMENT OF POLICY ON THE USE OF THE ASME SINGLE CERTIFICATION MARK AND CODE AUTHORIZATION IN ADVERTISING
STATEMENT OF POLICY ON THE USE OF ASME MARKING TO IDENTIFY MANUFACTURED ITEMS
Personnel
Correspondence With the Committee
SUMMARY OF CHANGES
Cross-Referencing in the ASME BPVC
ARTICLE 1 INTRODUCTION
ARTICLE 2 GLOSSARY
ARTICLE 3 TYPES OF BOILERS [Go to Page]
3.1 CLASSIFICATION
3.2 ASME CERTIFICATION MARK [Go to Page]
3.2.1 Boilers Marked With the Certification Mark With H Designator
3.2.2 Potable Water Heaters Marked With the Certification Mark With H or HLW Designator
3.3 METHOD OF MANUFACTURE [Go to Page]
3.3.1 Fabricated Boilers
3.3.2 Cast Boilers
3.3.3 Vacuum Boilers
3.4 CATEGORY [Go to Page]
3.4.1 Noncondensing Boilers
3.4.2 Condensing Boilers
ARTICLE 4 FUELS AND FUEL-BURNING EQUIPMENT [Go to Page]
4.1 TYPES OF FUELS [Go to Page]
4.1.1 Gaseous Fuels
4.1.2 Liquid Fuels
4.1.3 Solid Fuels
4.1.4 Electricity
4.2 FUEL-BURNING EQUIPMENT [Go to Page]
4.2.1 Gas-Burning Equipment
4.2.2 Liquid-Burning Equipment
4.2.3 Solid-Fuel-Burning Equipment
ARTICLE 5 BOILER ROOM FACILITIES AND INSTALLATION [Go to Page]
5.1 GENERAL [Go to Page]
5.1.1 Scope
5.1.2 Intention
5.1.3 Installation
5.1.4 New Boilers — Acceptance and Examination
5.2 LIGHTING
5.3 VENTILATION AND COMBUSTION AIR [Go to Page]
5.3.1 Combustion Air
5.3.2 Air Openings
5.4 CLEARANCES
5.5 FIRE PROTECTION
5.6 ELECTRICAL SUPPLY [Go to Page]
5.6.1 Wiring
5.6.2 Switches or Circuit Breakers
5.7 FUEL SUPPLY
5.8 CHIMNEY OR VENT [Go to Page]
5.8.1 Installation
5.8.2 Handling of Condensate
5.9 PIPING — WATER AND DRAIN CONNECTIONS [Go to Page]
5.9.1 General
5.9.2 Provisions for Expansion and Contraction
5.9.3 Steam Boiler Return Pipe Connections
5.9.4 Feedwater and Makeup Water Connections
5.9.5 Bottom Blowoff Valve
5.9.6 Drains
5.9.7 Stop Valves
5.9.8 Modular Boilers
5.10 SAFETY
5.11 HOUSEKEEPING
5.12 POSTING OF CERTIFICATES AND/OR LICENSES
5.13 RECORD KEEPING, LOGS, ETC. [Go to Page]
5.13.1 Drawings, Diagrams, Instruction Books, Etc.
5.13.2 Logbook
5.13.3 Maintenance Schedules and Records
ARTICLE 6 OVERPRESSURE PROTECTION [Go to Page]
6.1 PRESSURE RELIEF VALVES [Go to Page]
6.1.1 General
6.1.2 Safety Valves
6.1.3 Safety Relief Valves
6.1.4 Temperature and Pressure Safety Relief Valves
6.2 PRESSURE RELIEF VALVE REQUIREMENTS [Go to Page]
6.2.1 Safety Valve Requirements for Steam Boilers
6.2.2 Safety Relief Valve Requirements for Hot Water Boilers
6.3 MOUNTING [Go to Page]
6.3.1 General
6.3.2 Requirements for Common Connections for Two or More Valves
6.3.3 Threaded Connections
6.3.4 Prohibited Mountings
6.3.5 Shutoff Valves
6.4 PRESSURE RELIEF VALVE DISCHARGE PIPING [Go to Page]
6.4.1 Discharge Piping
6.4.2 Piping Arrangement
6.4.3 Piping Pressure and Temperature Requirements
6.4.4 Discharge Piping Support
6.5 TEMPERATURE AND PRESSURE SAFETY RELIEF VALVES
6.6 VALVE REPLACEMENT
6.7 TRY-LEVER TEST FOR SAFETY VALVES (STEAM BOILERS)
6.8 TRY-LEVER TEST FOR SAFETY RELIEF VALVES (WATER BOILERS)
ARTICLE 7 SYSTEM ACCESSORIES [Go to Page]
7.1 STEAM BOILERS [Go to Page]
7.1.1 Steam Trap
7.1.2 Condensate Return Pump Loops
7.1.3 Vacuum Return Pump
7.1.4 Economizer (Steam Boiler)
7.2 HOT WATER BOILERS [Go to Page]
7.2.1 Air Eliminators
7.2.2 Circulators (Circulating Pumps)
7.2.3 Economizer (Hot Water Boiler or Potable Water Heater)
7.2.4 Expansion Tank
7.2.5 Storage Tanks for Hot Water Supply Systems
ARTICLE 8 CONTROLS AND INSTRUMENTATION [Go to Page]
8.1 LOW‐WATER FUEL CUTOFFS AND WATER FEEDERS [Go to Page]
8.1.1 Float-Type Low‐Water Fuel Cutoffs
8.1.2 Electric-Probe-Type Low‐Water Fuel Cutoffs
8.2 PRESSURE GAUGE [Go to Page]
8.2.1 General
8.2.2 Mounting
8.2.3 Types of Pressure Gauges
8.2.4 Calibration
8.3 CONTROLS [Go to Page]
8.3.1 General
8.3.2 Spare Parts
8.3.3 Power for Electrically Operated Controls
8.3.4 Operating Controls
8.3.5 Limit Controls
8.3.6 Safety Controls
8.3.7 Programming Controls
8.4 STEAM HEATING BOILERS [Go to Page]
8.4.1 Low-Water Fuel Cutoffs
8.4.2 Steam Gauges
8.4.3 Water Gauge Glasses
8.4.4 Water Column and Water-Level-Control Pipes
8.4.5 Pressure Controls
8.5 HOT WATER HEATING BOILERS [Go to Page]
8.5.1 Low‐Water Fuel Cutoff (Hot Water)
8.5.2 Thermometers
8.5.3 Pressure or Altitude Gauges
8.5.4 Temperature Controls
8.5.5 Differential Temperature Controls
8.5.6 Air for Pneumatically Operated Controls
ARTICLE 9 OPERATION AND MAINTENANCE OF STEAM BOILERS [Go to Page]
9.1 STARTING A NEW BOILER AND HEATING SYSTEM [Go to Page]
9.1.1 Examination for Foreign Objects
9.1.2 Checks Before Filling
9.1.3 Operation to Clean the System
9.1.4 Boiling Out
9.1.5 Second Boil-Out for Stubborn Cases
9.2 STARTING A BOILER AFTER LAYUP (SINGLE-BOILER INSTALLATION) [Go to Page]
9.2.1 Procedure
9.2.2 Action in Case of Abnormal Conditions
9.3 CONDENSATION
9.4 CUTTING IN AN ADDITIONAL BOILER
9.5 OPERATION [Go to Page]
9.5.1 Water Level
9.5.2 Steam Pressure
9.5.3 Blowdown
9.5.4 Appearance of Rust
9.5.5 Water-Level Fluctuation
9.5.6 Abnormal Water Losses
9.5.7 Makeup Water
9.5.8 Low-Water Cutoff
9.6 REMOVAL OF BOILER FROM SERVICE [Go to Page]
9.6.1 General
9.6.2 Cleaning
9.6.3 Protection Against Corrosion
9.6.4 Water Level
9.6.5 Periodic Checks
9.7 MAINTENANCE [Go to Page]
9.7.1 Cleaning
9.7.2 Draining
9.7.3 Protection Against Freezing
9.7.4 Fire-Side Corrosion
9.7.5 Safety Valves
9.7.6 Burner Maintenance
9.7.7 Low-Water Fuel Cutoff and Water Feeder Maintenance
9.7.8 Flame Safeguard Maintenance
9.7.9 Limit Control Maintenance
9.7.10 Cast Iron Boiler Maintenance
9.7.11 Steel and Copper Boiler Maintenance
9.7.12 Use of Flashlight for Internal Examination
9.7.13 Leaking Tubes
9.7.14 Use of Sealant
9.7.15 Maintenance of Condensate Return Systems
9.7.16 Maintenance Schedule for Boilers in Service
ARTICLE 10 OPERATION AND MAINTENANCE — HOT WATER BOILERS AND HOT WATER HEATING BOILERS [Go to Page]
10.1 STARTING A NEW BOILER AND HEATING SYSTEM [Go to Page]
10.1.1 Examination for Foreign Objects
10.1.2 Checks Before Filling
10.1.3 Boiling Out
10.2 STARTING A BOILER AFTER LAYUP (SINGLE-BOILER INSTALLATION) [Go to Page]
10.2.1 Procedure
10.2.2 Action in Case of Abnormal Conditions
10.3 CONDENSATION
10.4 CUTTING IN AN ADDITIONAL BOILER
10.5 OPERATION [Go to Page]
10.5.1 Check of Pressure and Temperature
10.5.2 Operating Temperature and Pressure
10.6 REMOVAL OF BOILER FROM SERVICE [Go to Page]
10.6.1 General
10.6.2 Cleaning
10.6.3 Protection Against Corrosion
10.6.4 Periodic Checks
10.7 MAINTENANCE [Go to Page]
10.7.1 Cleaning
10.7.2 Draining
10.7.3 Protection Against Freezing
10.7.4 Fire-Side Corrosion
10.7.5 Safety Relief Valves
10.7.6 Burner Maintenance
10.7.7 Low-Water Fuel Cutoff
10.7.8 Flame Safeguard Maintenance
10.7.9 Limit Control Maintenance
10.7.10 Cast Boiler Maintenance
10.7.11 Steel Boiler Maintenance
10.7.12 Use of Flashlight for Internal Examinations
10.7.13 Leaking Tubes
10.7.14 Use of Sealants
10.7.15 Maintenance of Circulating Pumps and Expansion Tanks
10.7.16 Maintenance Schedule for Boilers in Service
ARTICLE 11 INSPECTIONS OF INSTALLED BOILERS [Go to Page]
11.1 PERIODIC INSPECTION OF BOILERS [Go to Page]
11.1.1 Preparation for Inspection
11.1.2 Preparation for the Liquid Pressure Test
11.2 INSPECTION OF THE BOILER BY THE INSPECTOR
ARTICLE 12 BOILER REPAIRS [Go to Page]
12.1 PRECAUTION
12.2 NOTIFICATION
12.3 WELDING REQUIREMENTS
12.4 SAFETY
ARTICLE 13 WATER TREATMENT [Go to Page]
13.1 SCOPE
13.2 CONSIDERATIONS
13.3 WATER TREATMENT SPECIALISTS
13.4 LOCAL ORDINANCES
13.5 POTENTIAL BOILER WATER PROBLEMS [Go to Page]
13.5.1 Corrosion
13.5.2 Scale Deposits
13.5.3 Metal or Caustic Embrittlement
13.5.4 Foaming, Priming, and Carryover
13.6 BLOWDOWN (STEAM BOILERS)
13.7 CHEMICAL FEEDERS
13.8 PROCEDURES [Go to Page]
13.8.1 Determination of Water-Containing Capacity
13.8.2 Making a pH or Alkalinity Test
13.8.3 Mixing and Handling Chemicals
ARTICLE 14 TREATMENT OF LAID‐UP BOILERS [Go to Page]
14.1 GENERAL
14.2 DRY METHOD
14.3 WET METHOD
Figures [Go to Page]
Figure 3.3.1.1.1-1 Horizontal Tube, Brick-Set
Figure 3.3.1.1.2-1 Gas Flow Patterns of Scotch-Type Boilers
Figure 3.3.1.1.3-1 Type C Firebox Boiler
Figure 3.3.1.1.3-2 Three-Pass Firebox Boiler
Figure 3.3.1.1.4-1 Vertical Firetube Boiler
Figure 3.3.2.1-1 Horizontal Sectional Cast Iron Boiler
Figure 3.3.2.1-2 Vertical Sectional Cast Iron Boiler
Figure 5.9.1-1 Single Hot Water Heating Boiler — Acceptable Piping Installation
Figure 5.9.1-2 Hot Water Heating Boilers in Battery — Acceptable Piping Installation
Figure 5.9.1-3 Single Steam Boilers — Acceptable Piping Installation
Figure 5.9.1-4 Steam Boilers in Battery — Pumped Return — Acceptable Piping Installation
Figure 5.9.1-5 Steam Boilers in Battery — Gravity Return — Acceptable Piping Installation
Figure 5.9.8-1 Modules Connected With Parallel Piping
Figure 5.9.8-2 Modules Connected With Primary-Secondary Piping
Figure 6.1.1-1 Official Certification Mark
Figure 6.1.2-1 Safety Valve
Figure 6.1.3-1 Safety Relief Valve
Figure 6.4.1-1 Safety Relief Valve Discharge Pipe
Figure 7.1.1-1 Thermostatic Trap
Figure 7.1.1-2 Float Trap
Figure 7.1.1-3 Float and Thermostatic Trap
Figure 7.1.1-4 Bucket Trap With Trap Closed
Figure 7.1.2.3-1 Typical Return Loop
Figure 8.1.1-1 Float-Type Low-Water Cutoff
Figure 8.1.2-1 Probe-Type Low-Water Cutoff
Figure I-1-1 Exhibit A
Figure I-1-2 Exhibit B
Table [Go to Page]
Table 5.9.5-1 Size of Bottom Blowoff Piping,Valves, and Cocks
MANDATORY APPENDIX I PERIODIC TESTING AND MAINTENANCE [Go to Page]
I-1 INSPECTION AND MAINTENANCE PROGRAM
I-2 RESPONSIBILITIES OF PERSONNEL [Go to Page]

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