Chapter 13 — HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICAL VACUUM SYSTEMS
1305.2 Minimum Flow Rates. Medical gas and vacuum
California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-09-10 · California
Italicized text is a California amendment to the model code, as printed in the official publication.
systems shall be capable of supplying the flow rates listed in Table 1305.2.
Get a plain-English answer with a citation back to this text.
Ask AI about this code▸Contents — California Plumbing Code (Title 24, Part 5)
California Plumbing Code (Title 24, Part 5)
- Chapter 1 — GENERAL CODE PROVISIONS
- Chapter 2 — DEFINITIONS
- Chapter 3 — GENERAL REGULATIONS
- Chapter 4 — PLUMBING FIXTURES AND FIXTURE FITTINGS
- Chapter 5 — WATER HEATERS
- Chapter 6 — WATER SUPPLY AND DISTRIBUTION
- Chapter 7 — SANITARY DRAINAGE
- Chapter 8 — INDIRECT WASTES
- Chapter 9 — VENTS
- Chapter 10 — TRAPS AND INTERCEPTORS
- Chapter 11 — STORM DRAINAGE
- Chapter 12 — FUEL GAS PIPING
▸Chapter 13 — HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICA…
Overview- 1301.1 Applicability. This chapter applies to the special fixt…
- 1301.2 Where Not Applicable. This chapter does not apply
- 1301.3 Conflict of Requirements. The requirements of
- 1301.4 Where Required. Construction and equipment
- 1301.5 Existing Systems. Only the altered, renovated, or
- 1302.1 Risk Categories. All activities, as well as systems
- 1302.2 Patient Care Spaces. The health care facility’s
- 1302.3 Anesthesia. It shall be the responsibility of the
- 1302.4 Wet Procedure Locations. It shall be the responsibility…
- 1303.1 Drinking Fountain Control Valves. Drinking
- 1303.2 Psychiatric Patient Rooms. Piping and drain
- 1303.3 Locations for Ice Storage. Ice makers or ice storage co…
- 1303.4 Sterilizers and Bedpan Steamers. Sterilizers
- 1303.5 Aspirators. Provisions for aspirators or other watersup…
- 1303.6 Drains. Drains shall be installed on dryers, aftercoole…
- 1303.7 Clinical Sinks. Clinical sinks shall be installed in
- 1303.8 Water Supply for Hospitals. Hospitals shall be
- 1303.9 Work Performed in Occupied Healthcare
- 1304.1 General. The installation of medical gas and medical va…
- 1304.2 Certification of Systems. Certification of medical gas …
- 1304.3 Construction Documents. Before a medical gas
- 1304.4 Extent of Work. Construction documents submitted
- 1304.5 Record. A record of as-built plans and valve identifica…
- 1305.1 Required Operating Pressures. Medical gas and
- 1305.2 Minimum Flow Rates. Medical gas and vacuum
- 1305.3 Minimum Station Outlets and Inlets. Station
- 1306.1 Certification. Prior to a medical gas or vacuum system …
- 1306.2 Certification Tests. Certification tests, verified and
- 1306.3 Report Items. A report that includes the specific
- 1306.4 Components. Functioning of alarm components
- 1307.1 Terms. Where the terms medical gas or medical support g…
- 1307.2 Nature of Hazards of Gas and Vacuum Sys-
- 1307.3 Permitted Locations for Medical Gases. Central supply s…
- 1307.4 Materials. Materials used in central supply systems
- 1308.1 Where Required. Pressure-regulating equipment
- 1308.2 Pressure Relief Valves. All pressure relief valves
- 1308.3 Pressure-Relief Valve Requirements. Central
- 1309.1 Oxygen Requirements. Oxygen concentrator supply units f…
- 1309.2 Particulate Size. Output shall have less than or
- 1309.3 Suitability. Materials of construction on the air side
- 1309.4 Compatible Materials. Materials of construction
- 1309.5 Oxygen Concentrator Components. The components that mak…
- 1309.6 Supply Air Quality. The supply air to the concentrator(…
- 1309.7 Electrical Components. The oxygen concentrator
- 1309.8 Vent Valve. A vent valve shall be provided as follows:
- 1309.9 Valved Sample Port. A DN8 (NPS 1/4) valved
- 1309.10 Suitable Filter. At least one 0.1 micron filter suitab…
- 1309.11 Check Valve. A check valve shall be provided at
- 1309.12 Outlet Valve. An outlet valve shall be provided to
- 1309.13 Oxygen Concentration Monitor. The oxygen
- 1310.1 Quality of Medical Air. Medical air shall be
- 1310.2 Uses of Medical Air. Medical air sources shall be
- 1310.3 Medical Air Compressors. Medical air compressors shall …
- 1310.4 Medical Air Receivers. Receivers for medical air
- 1310.5 Valves. A medical air receiver(s) shall be provided
- 1311.1 Air Sources. Air sources for medical air compressors
- 1311.2 Medical Air Compressor Source. The medical
- 1311.3 Air Intakes. Compressor intake piping shall be permitte…
- 1311.4 Location. Medical air intakes shall be located as fol
- 1311.5 Separate Compressors. Air intakes for separate
- 1311.6 Screening. The end of the intake shall be turned
- 1312.1 General. The vacuum plant shall be installed in a
- 1312.2 Medical-Surgical Vacuum Sources. Medicalsurgical vacuum…
- 1312.3 Vacuum Receivers. Receivers for vacuum shall
- 1312.4 Vacuum Filtration. Central supply systems for vacuum ot…
- 1312.5 Piping Arrangement and Redundancies. Piping arrangement…
- 1312.6 Piping Serviceability. The medical-surgical vacuum rece…
- 1312.7 Shutoff Valve. Medical-surgical vacuum central
- 1313.1 Vacuum Source Exhausts. The medical-surgical
- 1313.2 Location. The exhaust shall be located as follows:
- 1313.3 Screening. The end of the exhaust shall be turned
- 1313.4 Dips and Loops. The exhaust shall be free of dips
- 1313.5 Multiple Pumps. Vacuum exhausts from multiple
- 1314.1 Gas and Vacuum Shutoff Valves. Shutoff valves
- 1314.2 Security. All valves, except valves in zone valve
- 1314.3 Labeled. All valves shall be labeled as to gas supplied…
- 1314.4 Accessibility. Zone valves shall be installed in
- 1314.5 Valve Types. New or replacement valves shall be
- 1314.6 Source Valves. A shutoff valve shall be placed at the
- 1314.7 Main Line Valve. A shutoff valve shall be provided
- 1314.8 Riser Valves. Each riser supplied from the main line
- 1314.9 Service Valves. Service valves shall be installed to
- 1314.10 Zone Valves. All station outlets/inlets shall be suppl…
- 1314.11 In-Line Shutoff Valves. Optional in-line valves
- 1314.12 Valves for Future Connections. Future con
- 1315.1 General. Each station outlet/inlet for medical gases
- 1315.2 Required Valves. Each station outlet shall consist
- 1315.3 Secondary Valve. The secondary valve (or assembly) shal…
- 1315.4 Identification. Each outlet/inlet shall be legibly iden…
- 1315.5 Threaded Outlets/Fittings. Threaded outlets/inlets
- 1315.6 Gas-Specific Station Outlet/Inlet. Each station
- 1315.7 Common Parts. The use of common parts in outlets/inlets…
- 1315.8 Marking of Components. Components of a vacuum station i…
- 1315.9 Components Not Specific to a Vacuum. Components of inle…
- 1315.10 Factory-Installed Copper Inlet Tubes. Factoryinstalled…
- 1315.11 Factory-Installed Copper Outlet Tubes. Factory-install…
- 1315.12 Protection from Damage. Station outlets/inlets
- 1315.13 Multiple Wall Outlets/Inlets. When multiple wall
- 1315.14 Nonstandard Operation Pressures. Station
- 1315.15 Post Installation. After installation of the piping,
- 1316.1 Isolation. A pressure-relief valve shall not be isolate…
- 1316.2 Pressure and Vacuum Indicator Locations.
- 1317.1 Category 1. All master, area, and local alarm systems u…
- 1318.1 General. The provisions of this section shall apply
- 1318.2 Cleaning. Tubes, valves, fittings, station outlets, and
- 1318.3 Delivery. Each length of tube shall be delivered
- 1318.4 Tubes for Medical Gas Systems. Tubes shall be
- 1318.5 Manufacturer Markings. ASTM B819, medical gas
- 1318.6 Documentation. The installer shall furnish documentatio…
- 1319.1 Tubes for Medical Vacuum Systems. Piping for
- 1320.1 General. This section sets forth the requirements for
- 1320.2 Changes in Direction. Positive pressure patient
- 1321.1 Brazed Joints and Fittings. Fittings shall be
- 1321.2 Tube Joints. Brazed tube joints shall be the socket
- 1321.3 Filler Metals. Filler metals shall bond with and be
- 1321.4 Copper-to-Copper Joints. Copper-to-copper
- 1321.5 Accessible. Joints to be brazed in place shall be
- 1321.6 Purging. Braze joints shall be continuously purged
- 1321.7 Tube Ends. Tube ends shall be cut square using a
- 1321.8 Cleaning Procedures. The interior surfaces of
- 1321.9 Brazing Dissimilar Metals. Flux shall only be
- 1321.10 Nitrogen Purge. When brazing, joints shall be
- 1321.11 Assembling and Heating Brazed Joints. Tube
- 1321.12 Inspection of Brazed Joints. After brazing, the
- 1322.1 Welded Joints Procedure. Welded joints for medical gas …
- 1322.2 Welding for Stainless Tube. Stainless tube shall
- 1322.3 Memory Metal Fittings. Memory metal fittings
- 1322.4 Axially Swaged Fittings. Axially swaged fittings
- 1322.5 Threaded Fittings. Threaded fittings shall meet the
- 1322.6 Other Types of Fittings. Listed or approved metallic ga…
- 1322.7 Prohibited Joints. The following joints shall be
- 1323.1 Required Pipe Sizing. Piping systems shall be
- 1323.2 Pipe Protection. Piping shall be protected against
- 1323.3 Location of Piping. Piping risers shall be permitted to…
- 1323.4 Pipe Support. Piping shall be supported from the
- 1323.5 Frost Protection. Buried piping outside of buildings sh…
- 1323.6 Connectors. Hose and flexible connectors, both
- 1323.7 Prohibited System Interconnections. Two or
- 1323.8 Manufacturer’s Instructions. The installation of
- 1323.9 Changes in System Use. Where a positive-pressure medica…
- 1323.10 Qualifications of Installers. The installation of
- 1323.11 Qualification of Brazing Procedures and
- 1323.12 Breaching or Penetrating Medical Gas Pip-
- 1323.13 Labeling, Identification and Operating Pres-
- 1323.14 Identification of Shutoff Valves. Shutoff valves
- 1323.15 Identification. Station outlets and inlets shall be
- 1324.1 Where Required. Inspection and testing shall be
- 1324.2 Breached Systems. All systems that are breached
- 1324.3 Test Gas. The test gas shall be oil-free, dry nitrogen
- 1324.4 Initial Piping Blowdown. Piping in medical gas and
- 1324.5 Initial Pressure Tests – Medical Gas and Vac-
- 1325.1 General. Category 2 piped gas or piped vacuum system re…
- 1325.2 Nature of Hazards of Gas and Vacuum Sys-
- 1325.3 Central Supply Systems. Category 2 systems
- 1325.4 Category 2 Medical Air Supply Systems. Category 2 syste…
- 1325.5 Oxygen Concentrators. Oxygen supply systems
- 1325.6 Category 2 Medical-Surgical Vacuum. Category 2 systems …
- 1325.7 Valves. Category 2 systems shall comply with Section 13…
- 1325.8 Station Outlets and Inlets. Category 2 systems
- 1325.9 Pressure and Vacuum Indicators. Category 2
- 1325.10 Warning Systems. Warning systems associated
- 1325.11 Category 2 Distribution. Category 2 systems
- 1325.12 Labeling and Identification. Category 2 systems shall …
- 1325.13 Performance Criteria and Testing — Gas,
- 1326.6 Station Outlets and Inlets. Category 3 systems
- 1326.7 Pressure and Vacuum Indicators. Category 3
- 1326.8 Warning Systems. Warning systems associated
- 1326.9 Distribution. Category 3 systems shall comply with
- 1326.10 Labeling and Identification. Category 3 systems
- 1327.1 General. Dental gas and vacuum systems shall comply wit…
- 1327.2 Emergency Shutoff Valves (Oxygen and
- 1327.3 Warning Systems (Oxygen and Nitrous
- 1326.1 General. Category 3 piped gas and vacuum systems
- 1326.2 Nature of Hazards of Gas and Vacuum Sys-
- 1326.3 Medical Air Supply Systems. Category 3 central
- 1326.4 Medical–Surgical Vacuum Systems. Category
- 1326.5 Valves. Category 3 systems shall comply with Section 13…
- 1327.4 Initial Pressure Test. Each section of the piping in
- 1327.5 Maximum Copper Tube Support Spacing. The
- 1327.6 Maximum Plastic Pipe Support Spacing. The
- 1327.7 Standing Pressure Tests for Oxygen and
- 1327.8 Verifier Operational Pressure Test. Operational
- Chapter 14 — FIRESTOP PROTECTION
- Chapter 15 — ALTERNATE WATER SOURCES FOR NONPOTABLE APPLICATIONS
- Chapter 16 — NONPOTABLE RAINWATER CATCHMENT SYSTEMS
- Chapter 17 — REFERENCED STANDARDS
- Appendix A — RECOMMENDED RULES FOR SIZING THE WATER SUPPLY SYS…
- Appendix B — EXPLANATORY NOTES ON COMBINATION WASTE AND VENT S…
- Appendix C — ALTERNATE PLUMBING SYSTEMS
- Appendix D — SIZING STORM WATER DRAINAGE SYSTEMS
- Appendix E — MANUFACTURED/MOBILE HOME PARKS AND RECREATIONAL V…
- Appendix F — FIREFIGHTER BREATHING AIR REPLENISHMENT SYSTEMS
- Appendix G — SIZING OF VENTING SYSTEMS
- Appendix H — PRIVATE SEWAGE DISPOSAL SYSTEMS
- Appendix I — INSTALLATION STANDARDS
- Appendix J — COMBINATION OF INDOOR AND OUTDOOR COMBUSTION AND …
- Appendix K — POTABLE RAINWATER CATCHMENT SYSTEMS
- Appendix L — SUSTAINABLE PRACTICES
- Appendix M — PEAK WATER DEMAND CALCULATOR
- Appendix N — IMPACT OF WATER TEMPERATURE ON THE POTENTIAL FOR …
- Appendix O — NON-SEWERED SANITATION SYSTEMS
- Appendix P — PROFESSIONAL QUALIFICATIONS
- Appendix Q — INDOOR HORTICULTURAL FACILITIES
- Appendix R — TINY HOUSES
- Appendix S — ONSITE STORMWATER TREATMENT SYSTEMS