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ASME Boiler and Pressure Vessel Code (BPVC), Section VI-Recommended Rules for the Care and Operation of Heating Boilers >
ASME Boiler and Pressure Vessel Code (BPVC), Section VI-Recommended Rules for the Care and Operation of Heating Boilers, 2001
- Foreword
- Statements of Policy
- Personnel
- Summary of Changes
- 1. General
- 1.01 Scope
- 1.02 Use of Illustrations
- 1.03 Manufacturer’s Information
- 1.04 Reference to Section IV
- 1.05 Glossary of Terms
- A. Boilers and General Terms
- B. Fuels, Fuel Burning Equipment, and Combustion
- 2. Types of Boilers
- 2.01 Classification
- 2.02 Steel Boilers
- A. Firetube Boilers
- B. Watertube Boilers
- 2.03 Cast Iron Boilers
- A. Horizontal Sectional Cast Iron Boilers
- B. Vertical Sectional Cast Iron Boilers
- C. One-Piece Cast Iron Boilers
- 2.04 Modular Boilers
- 2.05 Vacuum Boilers
- 3. Accessories and Installation
- 3.01 Safety and Safety Relief Valves
- A. Safety Valves
- B. Safety Relief Valves
- C. Temperature and Pressure Safety Relief Valves
- 3.02 Low-Water Fuel Cutoffs and Water Feeders
- A. Float Type Low-Water Fuel Cutoffs
- B. Electric Probe Type Low-Water Fuel Cutoffs
- 3.03 Traps
- 3.04 Air Eliminators
- 3.05 Condensate Return Pumps and Return Loop
- 3.06 Vacuum Return Pump
- 3.07 Circulators (Circulating Pumps)
- 3.08 Expansion Tank
- 3.09 Oil Preheaters
- 3.10 Fuel Oil Storage and Supply Systems
- 3.11 Pressure Gage
- A. Gage Range
- B. Accuracy
- C. Calibration
- D. Siphon Tube
- 3.20 Pressure Relieving Valve Requirements
- A. Safety Valve Requirements for Steam Boilers
- B. Safety Relief Valve Requirements for Hot Water Boilers
- C. Permissible Mounting
- D. Requirements for Common Connections for Two or More Valves
- E. Threaded Connections
- F. Prohibited Mountings
- G. Use of Shutoff Valves Prohibited
- H. Safety and Safety Relief Valve Discharge Piping
- I. Temperature and Pressure Safety Relief Valves
- J. Valve Replacement
- 3.21 Steam Gages
- 3.22 Water Gage Glasses
- 3.23 Water Column and Water Level Control Pipes
- 3.24 Pressure Control
- 3.25 Pressure or Altitude Gages
- 3.26 Thermometers
- 3.27 Temperature Control
- 3.28 Automatic Low-Water Fuel Cutoff and/or Water Feeding Device (Steam)
- 3.29 Low-Water Fuel Cutoff (Hot Water)
- 3.30 Piping
- A. Provisions for Expansion and Contraction
- B. Return Pipe Connections
- C. Feedwater and Makeup Water Connections
- 3.31 Provisions for Thermal Expansion in Hot Water Systems
- A. Systems With Open Expansion Tank
- B. Closed-Type Systems
- C. Minimum Capacity of Closed-Type Tank
- 3.32 Stop Valves
- A. For Single Steam Boilers
- B. For Single Hot Water Heating Boilers
- C. For Multiple Boiler Installations
- D. Type of Stop Valve(s)
- E. Identification of Stop Valves by Tags
- 3.33 Bottom Blowoff and Drain Valves
- A. Bottom Blowoff Valve
- B. Drain Valve
- C. Minimum Pressure Rating
- 3.34 Oil Heaters
- 3.35 Shutdown Switches and Circuit Breakers
- 3.36 Modular Boilers
- A. Individual Modules
- B. Assembled Modular Boilers
- 3.37 Vacuum Boilers
- 4. Fuels
- 4.01 Gas — Natural, Manufactured, Mixed
- 4.02 Liquefied Petroleum Gas (LPG)
- 4.03 Fuel Oils
- A. Grade Number 1
- B. Grade Number 2
- C. Grade Number 4
- D. Grade Number 5
- E. Grade Number 6
- F. Preheating Requirements
- 4.04 Coal
- A. Anthracite Coal
- B. Bituminous Coal
- 4.05 Electricity
- 5. Fuel Burning Equipment and Fuel Burning Controls
- 5.01 Gas Burning Equipment
- A. Atmospheric Gas Burners
- B. Power Gas Burners
- C. Combination Fuel Burners
- 5.02 Oil Burning Equipment
- A. Pressure Atomizing Burners (Gun Type)
- B. Steam Atomizing Burners
- C. Air Atomizing Burners
- D. Horizontal Rotary Cup Burner
- 5.03 Coal Burning Equipment
- 5.04 Controls
- A. Operating Controls
- B. Limit Controls
- C. Safety Controls
- D. Programming Controls
- E. Spare Parts
- F. Power for Electrically Operated Controls
- G. Air for Pneumatically Operated Controls
- H. Venting of Gas Controls
- I. Reference to ASME CSD-1
- 6. Boiler Room Facilities
- 6.01 General
- A. Scope
- B. Intention
- C. Inspection of New Boilers
- 6.02 Safety
- 6.03 Lighting
- 6.04 Ventilation
- 6.05 Water and Drain Connections
- A. Water Connections
- B. Drain Connections
- 6.06 Fire Protection
- 6.07 Housekeeping
- 6.08 Posting of Certificates and/or Licenses
- 6.09 Recordkeeping, Logs, etc.
- A. Drawings, Diagrams, Instruction Books, etc
- B. Log Book
- C. Maintenance Schedules and Records
- 7. Operation, Maintenance, and Repair — Steam Boilers
- 7.01 Starting a New Boiler and Heating System
- A. Cleaning and Filling a New Boiler
- 7.02 Starting a Boiler After Layup (Single Boiler Installation)
- A. Procedure
- B. Action in Case of Abnormal Conditions
- 7.03 Condensation
- 7.04 Cutting in an Additional Boiler
- 7.05 Operation
- A. Water Level
- B. Steaming Pressure
- C. Blowdown
- D. Appearance of Rust
- E. Waterline Fluctuation
- F. Abnormal Water Losses
- G. Makeup Water
- H. Low-Water Cutoff
- 7.06 Removal of Boiler From Service
- A. Procedure
- B. Cleaning
- C. Protection Against Corrosion
- D. Water Level
- E. Periodic Checks
- 7.07 Maintenance
- A. Cleaning
- B. Draining
- C. Protection Against Freezing
- D. Fire Side Corrosion
- E. Safety Valves
- F. Burner Maintenance
- G. Low-Water Fuel Cutoff and Water Feeder Maintenance
- H. Flame Safeguard Maintenance
- I. Limit Control Maintenance
- J. Cast Iron Boiler Maintenance
- K. Steel Boiler Maintenance
- L. Use of Flashlight for Internal Inspection
- M. Leaking Tubes
- N. Use of Sealant
- O. Maintenance of Condensate Return Systems
- P. Maintenance Schedule
- 7.08 Boiler Repairs
- A. Precaution
- B. Notification
- C. Welding Requirements
- D. Safety
- 7.09 Tests and Inspections of Steam Heating Boilers
- A. Tests
- B. Inspection During Construction
- C. Initial Inspection at Place of Installation
- D. Periodic Inspecting of Existing Boilers
- 8. Operation, Maintenance, and Repair — Hot Water Boilers and Hot Water Heating Boilers
- 8.01 Starting a New Boiler and Heating System
- A. Cleaning and Filling a New Boiler
- 8.02 Starting a Boiler After Layup (Single Boiler Installation)
- A. Procedure
- B. Action in Case of Abnormal Conditions
- 8.03 Condensation
- 8.04 Cutting in an Additional Boiler
- 8.05 Operation
- A. Check of Pressure and Temperature
- B. Position of Hands on Combination Gage
- C. Operating Temperature and Pressure
- 8.06 Removal of Boiler From Service
- A. Procedures
- B. Cleaning
- C. Protection Against Corrosion
- D. Periodic Checks
- 8.07 Maintenance
- A. Cleaning
- B. Draining
- C. Protection Against Freezing
- D. Fire Side Corrosion
- E. Safety Relief Valves
- F. Burner Maintenance
- G. Low-Water Fuel Cutoff
- H. Flame Safeguard Maintenance
- I. Limit Control Maintenance
- J. Cast Iron Boiler Maintenance
- K. Steel Boiler Maintenance
- L. Use of Flashlight for Internal Inspection
- M. Leaking Tubes
- N. Use of Sealants
- O. Maintenance of Circulating Pumps and Expansion Tanks
- P. Maintenance Schedule
- 8.08 Boiler Repairs
- A. Precaution
- B. Notification
- C. Welding Requirements
- D. Safety
- 8.09 Tests and Inspections of Hot Water Heating and Supply Boilers
- A. Tests
- B. Inspection During Construction
- C. Initial Inspection at Place of Installation
- D. Periodic Inspecting of Existing Boilers
- 9. Water Treatment
- 9.01 Scope
- 9.02 Considerations
- 9.03 Services of Water Treatment Specialists
- 9.04 Conformity With Local Ordinances
- 9.05 Boiler Water Troubles
- A. Corrosion
- B. Scale Deposits
- C. Metal (Caustic) Embrittlement
- D. Foaming, Priming, and Carryover
- 9.06 Chemicals Used
- A. Inorganic
- B. Organic
- 9.07 Functions of Chemicals
- A. Caustic Soda
- B. Chromates and Sulphites
- C. Phosphates
- D. Nitrates and Nitrites
- E. Organic Agents
- F. Boiler Compounds
- 9.08 Treatment Alternatives
- A. External or Internal Treatment
- B. Seasonal or Continuous Treatment
- C. Treatment of Cast Iron Boilers
- 9.09 Blowdown
- 9.10 Feeders
- 9.11 Procedures
- A. Determination of Water Containing Capacity
- B. Making a pH or Alkalinity Test
- C. Mixing and Handling Chemicals
- D. Treatment of Laid-Up Boilers
- 9.12 Glossary of Water Treatment Terms
- Exhibit A Maintenance, Testing, and Inspection Log — Steam Heating Boilers
- Exhibit B Maintenance, Testing, and Inspection Log — Hot Water Heating Boilers
- Exhibit C Tests
- Figure 2.02A-1 Horizontal Return Tube, Brick-Set
- Figure 2.02A-2 Gas Flow Patterns of Scotch Type Boilers
- Figure 2.02A-3 Type C Firebox Boiler
- Figure 2.02A-4 Three-Pass Firebox Boiler
- Figure 2.02A-5 Locomotive Firebox Boiler
- Figure 2.02A-6 Vertical Firetube Boiler
- Figure 2.03A Horizontal Sectional Cast Iron Boiler
- Figure 2.03B Vertical Sectional Cast Iron Boiler
- Figure 3.01 Official Symbol
- Figure 3.01A Safety Valve
- Figure 3.01B Safety Relief Valve
- Figure 3.02A Float Type Low-Water Cutoff
- Figure 3.02B Electric Probe Type Low-Water Control
- Figure 3.03-1 Thermostatic Trap
- Figure 3.03-2 Float Trap
- Figure 3.03-3 Float and Thermostatic Trap
- Figure 3.03-4 Bucket Trap With Trap Closed
- Figure 3.05 Typical Return Loop
- Figure 3.11 Pressure Gages
- Figure 3.20H Safety Relief Valve Discharge Pipe
- Figure 3.30-1 Single Hot Water Heating Boiler — Acceptable Piping Installation
- Figure 3.30-2 Hot Water Heating Boilers in Battery — Acceptable Piping Installation
- Figure 3.30-3 Single Steam Boilers — Acceptable Piping Installation
- Figure 3.30-4A Steam Boilers in Battery — Pumped Return — Acceptable Piping Installation
- Figure 3.30-4B Steam Boilers in Battery — Gravity Return — Acceptable Piping Installation
- Figure 5.01A Atmospheric Gas Burner
- Figure 5.01C Combination Fuel Burners
- Figure 5.02A High-Pressure Atomizing Burner
- Figure 5.02D Horizontal Rotary Cup Fuel Oil Burner
- Figure 5.03-1 Underfeed Single-Retort Stoker
- Figure 5.03-2 Overthrow Reciprocating Plate-Feed Type Spreader Stoker
- Figure 5.03-3 Chain Grate Stoker With Section Showing Links
- Table 3.20 Minimum Pounds of Steam Per Hour Per Square Foot of Heating Surface
- Table 3.31C-1 Expansion Tank Capacities for Gravity Hot Water Systems
- Table 3.31C-2 Expansion Tank Capacities for Forced Hot Water Systems
- Table 3.33 Size of Bottom Blowoff Piping, Valves, and Cocks
- Appendix I — Mandatory Preparation of Technical Inquiries to the Boiler and Pressure Vessel Committee
- SI Units
- Index [Go to Page]