Approved materials, pipe sizing, joints and prohibited fittings

Grounded in the retrieved California Plumbing Code — click a citation to read the verbatim passage:

• CPC § 1322.0 High relevance — show source text

  1322.0 Welded Joints . . . . . . . . . . . . . . . .288

  1322.1 Welded Joints Procedure . . . . . . .288

  1322.2 Welding for Stainless Tube . . . . .288

  1322.3 Memory Metal Fittings . . . . . . . . .288

  1322.4 Axially Swaged Fittings . . . . . . . .288

  1322.5 Threaded Fittings . . . . . . . . . . . . .288

  1322.6 Other Types of Fittings . . . . . . . . .288

  1322.7 Prohibited Joints . . . . . . . . . . . . . .288

  1323.0 Installation of Piping and Equipment . . . . . . . . . . . . . . . . . .289

  1323.1 Required Pipe Sizing . . . . . . . . . .289

  Table 1323.1.5(1) System Sizing – Flow Requirements for Station Outlets and Inlets . . . . . . . . . . . . .289

  Table 1323.1.5(2) Maximum Permitted Pressure Loss In Medical Gas and

  Medical Vacuum Systems . . . . . . .289

  1323.2 Pipe Protection . . . . . . . . . . . . . . .289

  Table 1323.1.4(1) Pressure Loss for Medical Air . . . . .290

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  TABLE OF CONTENTS

  Table 1323.1.4(2) Pressure Loss for Nitrogen . . . . . . .290

  Table 1323.1.4(3) Pressure Loss for Nitrous Oxide and Carbon Dioxide . . . . . . .291

  Table 1323.1.4(4) Pressure Loss for Oxygen . . . . . . .291

  Table 1323.1.4(5) Pressure Loss for Vacuum . . . . . . .292

  Table 1323.1.4(6) Pressure Loss for Vacuum (Category 3) . . . . . . . . . . . . . . . . . . .292

  1323.3 Location of Piping . . . . . . . . . . . . .293

  1323.4 Pipe Support . . . . . . . . . . . . . . . . .293

  Table 1323.4.4 Maximum Pipe Support Spacing . . . . . . . . . . . . . . . . . . . . . .293

  1323.5 Frost Protection . . . . . . . . . . . . . .293

  1323.6 Connectors . . . . . . . . . . . . . . . . . .294

  1323.7 Prohibited System Interconnections . . . . . . . . . . . . . .294

  1323.8 Manufacturer’s Instructions . . . . .294

  1323.9 Changes in System Use . . . . . . . .294

  1323.10 Qualifications of Installers . . . . . .294

  1323.11 Qualification of Brazing Procedures and Brazing . . . . . . . .295

  1323.12 Breaching or Penetrating Medical Gas Piping . . . . . . . . . . .295

• CPC § 5.1.10.8 High relevance — show source text

  (3) They shall be made up with polytetrafluoroethylene (PTFE) tape or other thread sealant recommended for oxygen service, with sealant applied to the male threads only and care taken to ensure sealant does not enter the pipe. [NFPA 99:5.1.10.8] 1322.6 Other Types of Fittings. Listed or approved metallic gas tube fittings that, when made up, provide a permanent joint having the mechanical, thermal, and sealing integrity of a brazed joint shall be permitted to be used. [NFPA 99:5.1.10.9.1]

  1322.6.1 Dielectric Fittings. Dielectric fittings that comply with the following shall be permitted only where required by the manufacturer of special medical equipment to electrically isolate the equipment from the system distribution piping:

  (1) They shall be of brass or copper construction with an approved dielectric.

  (2) They shall be permitted to be a union.

  (3) They shall be clean for oxygen where used for medical gases and medical support gases. [NFPA 99:5.1.10.9.2]

  1322.7 Prohibited Joints. The following joints shall be prohibited throughout medical gas and vacuum distribution pipeline systems:

  (1) Flared and compression-type connections, including connections to station outlets and inlets, alarm devices, and other components.

  (2) Other straight-threaded connections, including unions.

  (3) Pipe-crimping tools used to permanently stop the flow of medical gas and vacuum piping.

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  HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICAL VACUUM SYSTEMS

  (4) Removable and nonremovable push-fit fittings that employ a quick assembly push fit connector. [NFPA 99:5.1.10.10]

  1323.0 Installation of Piping and Equipment. 1323.1 Required Pipe Sizing. Piping systems shall be designed and sized to deliver the required flow rates at the utilization pressures. [NFPA 99:5.1.10.11.1.1]

• CPC § 1322.6.1 High relevance — show source text

  1322.6.1 Dielectric Fittings. Dielectric fittings that comply with the following shall be permitted only where required by the manufacturer of special medical equipment to electrically isolate the equipment from the system distribution piping:

  (1) They shall be of brass or copper construction with an approved dielectric.

  (2) They shall be permitted to be a union.

  (3) They shall be clean for oxygen where used for medical gases and medical support gases. [NFPA 99:5.1.10.9.2]

  1322.7 Prohibited Joints. The following joints shall be prohibited throughout medical gas and vacuum distribution pipeline systems:

  (1) Flared and compression-type connections, including connections to station outlets and inlets, alarm devices, and other components.

  (2) Other straight-threaded connections, including unions.

  (3) Pipe-crimping tools used to permanently stop the flow of medical gas and vacuum piping.

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  ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

  HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICAL VACUUM SYSTEMS

  (4) Removable and nonremovable push-fit fittings that employ a quick assembly push fit connector. [NFPA 99:5.1.10.10]

  1323.0 Installation of Piping and Equipment. 1323.1 Required Pipe Sizing. Piping systems shall be designed and sized to deliver the required flow rates at the utilization pressures. [NFPA 99:5.1.10.11.1.1]

  1323.1.1 Mains and Branches. Mains and branches in medical gas piping systems shall be not less than DN15 (NPS [1] ⁄ 2 ) ( [5] ⁄ 8 inch O.D.) size. Mains and branches in medical-surgical vacuum systems shall be not less than DN20 (NPS [3] ⁄ 4 ) ( [7] ⁄ 8 inch O.D.) size. [NFPA 99:5.1.10.11.1.2, 5.1.10.11.1.3] 1323.1.2 Drops to Individual Stations. Drops to individual station outlets and inlets shall be not less than DN15 (NPS [1] ⁄ 2 ) ( [5] ⁄ 8 inch O.D.) size. [NFPA 99:5.1.10.11.1.4] 1323.1.3 Runouts and Connecting Tubing. Runouts to alarm panels and connecting tubing for gauges and alarm devices shall be permitted to be DN8 (NPS [1] ⁄ 4 ) ( [3] ⁄ 8 inch O.D.) size. [NFPA 99:5.1.10.11.1.5]

  1323.1.4 Maximum Demand. Where the maximum demand for each medical gas or vacuum system does not exceed the values in Table 1323.1.4(1) through Table 1323.1.4(6), the size of pipe of each section of the system shall be determined in accordance with Section 1323.1.5. The size for systems beyond the range of Table 1323.1.4(1) through Table 1323.1.4(6) shall be determined in accordance with Section 1323.1.6.

• CPC § 603.3 High relevance — show source text

  603.3 Backflow Prevention Devices, Assemblies, and Methods . . . . . .140

  603.4 General Requirements . . . . . . . . .140

  603.5 Specific Requirements . . . . . . . . .141

  Table 603.2 Backflow Prevention Devices, Assemblies, and Methods . . . . . .142

  Table 603.3.1 Minimum Air Gaps for Water Distribution . . . . . . . . . . . . . . . . . .144

  604.0 Materials . . . . . . . . . . . . . . . . . . . .146

  604.1 Pipe, Tube, and Fittings . . . . . . . .146

  604.2 Lead Content . . . . . . . . . . . . . . . .147

  604.3 Copper or Copper Alloy Tube . . .147

  604.4 Hard-Drawn Copper or Copper Alloy Tubing . . . . . . . . . . . . . . . . .147

  604.5 Flexible Connectors . . . . . . . . . . .147

  604.6 Cast-Iron Fittings . . . . . . . . . . . . .147

  604.7 Malleable Iron Fittings . . . . . . . . .147

  604.8 Previously Used Piping and Tubing . . . . . . . . . . . . . . . . . . . . . .147

  604.9 Epoxy Coating . . . . . . . . . . . . . . .147

  604.10 Plastic Materials . . . . . . . . . . . . . .147

  Table 604.1 Materials for Building Supply and Water Distribution Piping and Fittings . . . . . . . . . . . . . . . . . .148

  604.11 Solder . . . . . . . . . . . . . . . . . . . . . .149

  604.12 Flexible Corrugated Connectors . .149

  604.13 Water Heater Connectors . . . . . . .149

  605.0 Joints and Connections . . . . . . . .149

  605.1 Copper or Copper Alloy Pipe, Tubing, and Joints . . . . . . . . . . . .149

  605.2 CPVC Plastic Pipe and Joints . . .150

  605.3 CPVC/AL/CPVC Plastic Pipe and Joints . . . . . . . . . . . . . . . . . . .150

  605.4 Ductile Iron Pipe and Joints . . . . .150

  605.5 Galvanized Steel Pipe and Joints . . . . . . . . . . . . . . . . . . . . . .151

  605.6 PE Plastic Pipe/Tubing and Joints . . . . . . . . . . . . . . . . . . . . . .151

  605.7 PE-AL-PE Plastic Pipe/Tubing and Joints . . . . . . . . . . . . . . . . . . .151

  605.8 PE-RT . . . . . . . . . . . . . . . . . . . . . .151

  605.9 PEX Plastic Tubing and Joints . . .151

  605.10 PEX-AL-PEX Plastic Tubing and Joints . . . . . . . . . . . . . . . . . . .152

• CPC § 4.1 High relevance — show source text

  This Standard refers to the following publications, and where such reference is made, it shall be to the current edition of those publications, including all amendments published thereto.

  IAPMO/ANSI UPC-1 Uniform Plumbing Code

  3 Abbreviations

  The following abbreviations apply in this Standard:

  PVC — polyvinyl chloride

  4 General

  4.1 Thrust Blocking for Rubber Gasket Joints

  In lines with rubber gasketed joints, thrust blocks shall be installed at all locations including:

  (a) Changes in direction, as at tees and bends

  (b) Changes in size, as at reducers

  (c) Stops, as at dead ends

  (d) Valves, where thrusts may be expected.

  Note: See examples in Figure 1. 4.2 Sizing

  Piping shall be sized in accordance with the applicable code or jurisdictional requirements.

  Note: For example, Appendix A, “Recommended Rules for Sizing the Water Supply System”, or Section 610.0, “Size of Potable Water Piping” of IAPMO/ANSI UPC-1 may be use for sizing pipe.

  4.3 Flow Velocity

  Flow velocity shall not exceed 8 fps (2.4 m/s) for PVC pipe or 10 fps (3m/s) for other pipe materials.

  4.4 Deflection

  Elastomeric gasketed pipe may be deflected in accordance with the manufacturer’s recommendations pro

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  IS 33

  vided that it shall not be permanently staked or blocked to maintain this deflection.

  4.5 Maximum Working Pressure

  The pipe and fitting system shall be designed for the maximum working pressure in accordance with Table 1.

  5 Thrust Blocking Sizing and Calculations

  5.1 Sizes

  Thrust block sizes shall be based on the maximum line pressure, pipe size and the safe bearing load of the soil.

  5.2 Calculation Examples

  5.2.1 Thrust

  5.2.1.1 Example 1

  From Table 2, Thrust at Fittings in pounds at 100 psi of Water Pressure, the thrust for a NPS 4 Dead End Tee at a pressure of 100 psi is 1620 lb.

  5.2.1.2 Example 2

  The thrust for an NPS 4, Dead End Tee, at a pressure of 150 psi is 2430 lb or 1.5 times the thrust found in Table 2.

  The calculation is as follows:

  (a) The thrust from Table 2, for an NPS 4, Dead End Tee, at 100 psi, is 1,620 lb.

  (b) The actual pressure of the system is 150 psi.

  (c) Divide the actual pressure by the table pressure or 150 psi/100 psi is 1.5.

  (d) Multiply the thrust from Table 2, for an NPS 4, Dead End Tee, at 100 psi, times the ratio of the actual/table pressure, or 1.5 times 1620 lb for a thrust of 2430 lb.

  5.2.1.3 Example 3

• CPC § 701.0 High relevance — show source text

  701.0 General . . . . . . . . . . . . . . . . . . . . .165

  701.1 Applicability . . . . . . . . . . . . . . . . . .165

  701.2 Drainage Piping . . . . . . . . . . . . . .165

  701.3 Drainage Fittings . . . . . . . . . . . . .165

  701.4 Continuous Wastes . . . . . . . . . . .165

  701.5 Lead . . . . . . . . . . . . . . . . . . . . . . .165

  701.6 Caulking Ferrules . . . . . . . . . . . . .165

  701.7 Soldering Bushings . . . . . . . . . . . .165

  Table 701.6 Caulking Ferrules . . . . . . . . . . . . .165

  Table 701.7 Soldering Bushings . . . . . . . . . . . .165

  702.0 Fixture Unit Equivalents . . . . . . . .165

  702.1 Trap Size . . . . . . . . . . . . . . . . . . .165

  Table 701.2 Materials for Drain, Waste, Vent Pipe and Fittings . . . . . . . . .166

  Table 702.1 Drainage Fixture Unit Values (DFU) . . . . . . . . . . . . . . . .167

  Table 702.1(1) Maximum Drainage Fixture Units for a Trap and Trap Arm . . .168

  702.2 Intermittent Flow . . . . . . . . . . . . . .168

  Table 702.2 Discharge Capacity in Gallons Per Minute for

  Intermittent Flow Only . . . . . . . . .168

  702.3 Continuous Flow . . . . . . . . . . . . . .168

  703.0 Size of Drainage Piping . . . . . . . .168

  703.1 Minimum Size . . . . . . . . . . . . . . . .168

  703.2 Maximum Number of Fixture

  Units . . . . . . . . . . . . . . . . . . . . . . .168

  703.3 Sizing per Appendix C . . . . . . . . .168

  704.0 Fixture Connections (Drainage) . .168

  704.1 Inlet Fittings . . . . . . . . . . . . . . . . .168

  704.2 Single Vertical Drainage Pipe . . . .168

  704.3 Commercial Sinks . . . . . . . . . . . . .168

  Table 703.2 Maximum Unit Loading and Maximum Length of Drainage and Vent Piping . . . . . . . . . . . . . .169

  705.0 Joints and Connections . . . . . . . .169

  705.1 ABS and ABS Co-Extruded

  Plastic Pipe and Joints . . . . . . . . .169

  705.2 Cast-Iron Pipe and Joints . . . . . . .169

  705.3 Copper or Copper Alloy Pipe (DWV) and Joints . . . . . . . . .170

  705.4 Galvanized Steel Pipe and Joints . . . . . . . . . . . . . . . . . . .170

  705.5 Polyethylene (PE) Sewer Pipe . . .170

• CPC § 705.9.2 Medium relevance — show source text

  Expansion joint . . . . . . . . . . . .705.9.2, 1101.5, 1213.2.2

  Flared . . . . . . . . . . . . . . . . . . . . . . . .605.1.2, 1208.5.9.4

  Galvanized steel pipe . . . . . . . . . . . . . . . . .605.5, 705.4 Ground joints . . . . . . . . . . . . . . . . . . . . . . . . . . .705.9.3 Heat-fusion joints . . . . . . . . . . . . . . . . . .212.0, 605.6.1,

  605.11.1, 1208.5.10.2

  Lead content . . . . . . . . . . . . . . . . . . . . . . . . . . . . .604.2

  Mechanical joints . . . . . . . . . .605.1.3, 605.2.1, 605.4.1,

  605.5.1, 605.6.2, 605.8.1,

  605.9.2, 605.10.1, 605.11.2,

  605.12.1, 605.13.1, 605.16.3,

  705.1.1, 705.2.2, 705.3.2,

  705.4.1, 705.6.1, 705.7.1,

  705.8.1, 705.10.4, 1208.5.10.3

  PE pipe or tubing . . . . . . . . . . . . . . . . . .605.6, 1208.5.4 PE-AL-PE pipe or tubing . . . . . . . . . . . . . . . . . . . .605.7 PE-RT tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .605.8

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  INDEX

  PEX tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .605.9 PEX-AL-PEX pipe or tubing . . . . . . . . . . . . . . . . .605.10 Plastic piping, joints, and fittings . . . . .605.2 – 605.3.2.1,

  605.6 – 605.12.3,

  705.1.1 – 705.1.3,

  705.5 – 705.5.1.3,

  705.6 – 705.6.3,

  705.10.3, 1208.5.10,

  1210.1.7.1

  PP piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .605.11 Prohibited fittings and practices . . . . . . . . . . . . . . . .310.0, 315.2, 604.2,

• CPC § 1101.3 Medium relevance — show source text

  1101.3 Storm Water Drainage to Sanitary Sewer Pro- hibited. Storm water shall not be drained into sewers intended for sanitary drainage. 1101.4 Material Uses. Pipe, tube, and fittings conveying rainwater shall be of such materials and design as to perform their intended function to the satisfaction of the Authority Having Jurisdiction. Conductors within a vent or shaft shall be of cast-iron, galvanized steel, wrought iron, copper, copper alloy, lead, Schedule 40 ABS DWV, Schedule 40 PVC DWV, stainless steel 304 or 316L [stainless steel 304 pipe and fittings shall not be installed underground and shall be kept not less than 6 inches (152 mm) aboveground], or other approved materials, and changes in direction shall be in accordance with the requirements of Section 706.0. ABS and PVC DWV piping installations shall be installed in accordance with applicable standards referenced in Chapter 17 and the firestop protection requirements in the California Building Code . Except for individual single-family dwelling units, materials exposed within ducts or plenums shall have a flame-spread index of not more than 25 and a smoke-developed index of not more than 50, where tested in accordance with ASTM E84 or UL 723. Plastic piping installed in plenums shall be tested in accordance with all requirements of ASTM E84 or UL 723. Mounting methods, supports and sample sizes of materials for testing that are not specified in ASTM E84 or UL 723 shall be prohibited.

  [HCD 1 & HCD 2] ABS or PVC installations are limited to not more than two stories of areas of residential accommo- dation.

  [OSHPD 1, 2, 3, 4 & 5] ABS and PVC installations are not allowed.

  1101.4.1 Copper and Copper Alloys. Joints and connections in copper and copper alloy pipe and tube shall be installed in accordance with Section 705.3.

  1101.4.2 Conductors. Conductors installed aboveground in buildings shall comply with the applicable standards referenced in Table 701.2 for aboveground drain, waste, and vent pipe. Conductors installed aboveground level shall be of seamless copper water tube, Type K, L, or M; Schedule 40 copper pipe or Schedule

  40 copper alloy pipe; Type DWV copper drainage tube; service weight cast-iron soil pipe or hubless cast-iron soil pipe; standard weight galvanized steel pipe; stainless steel 304 or 316L [stainless steel 304 pipe and fittings shall not be installed underground and shall be kept not less than 6 inches (152 mm) aboveground], or Schedule 40 ABS or Schedule 40 PVC plastic pipe. 1101.4.2.1 [HCD 1] ABS or PVC installations are limited to not more than two stories of areas of res- idential accommodation.

  1101.4.2.2 [OSHPD 1, 2, 3, 4 & 5] ABS and PVC installations are not allowed.

• CPC § 1320.0 Medium relevance — show source text

  Systems . . . . . . . . . . . . . . . . . . . .285

  1320.0 Joints and Connections . . . . . . . .286

  1320.1 General . . . . . . . . . . . . . . . . . . . . .286

  1320.2 Changes in Direction . . . . . . . . . .286

  1321.0 Brazed Joints . . . . . . . . . . . . . . . .286

  1321.1 Brazed Joints and Fittings . . . . . .286

  1321.2 Tube Joints . . . . . . . . . . . . . . . . . .286

  1321.3 Filler Metals . . . . . . . . . . . . . . . . .286

  1321.4 Copper-to-Copper Joints . . . . . . .286

  1321.5 Accessible . . . . . . . . . . . . . . . . . .286

  1321.6 Purging . . . . . . . . . . . . . . . . . . . . .286

  1321.7 Tube Ends . . . . . . . . . . . . . . . . . .286

  1321.8 Cleaning Procedures . . . . . . . . . .286

  1321.9 Brazing Dissimilar Metals . . . . . . .287

  1321.10 Nitrogen Purge . . . . . . . . . . . . . . .287

  1321.11 Assembling and Heating Brazed Joints . . . . . . . . . . . . . . . .287

  1321.12 Inspection of Brazed Joints . . . . .287

  1322.0 Welded Joints . . . . . . . . . . . . . . . .288

  1322.1 Welded Joints Procedure . . . . . . .288

  1322.2 Welding for Stainless Tube . . . . .288

  1322.3 Memory Metal Fittings . . . . . . . . .288

  1322.4 Axially Swaged Fittings . . . . . . . .288

  1322.5 Threaded Fittings . . . . . . . . . . . . .288

  1322.6 Other Types of Fittings . . . . . . . . .288

  1322.7 Prohibited Joints . . . . . . . . . . . . . .288

  1323.0 Installation of Piping and Equipment . . . . . . . . . . . . . . . . . .289

  1323.1 Required Pipe Sizing . . . . . . . . . .289

  Table 1323.1.5(1) System Sizing – Flow Requirements for Station Outlets and Inlets . . . . . . . . . . . . .289

  Table 1323.1.5(2) Maximum Permitted Pressure Loss In Medical Gas and

  Medical Vacuum Systems . . . . . . .289

  1323.2 Pipe Protection . . . . . . . . . . . . . . .289

  Table 1323.1.4(1) Pressure Loss for Medical Air . . . . .290

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  TABLE OF CONTENTS

• CPC § 702.2 Medium relevance — show source text

  Table 702.2 Discharge Capacity in Gallons Per Minute for

  Intermittent Flow Only . . . . . . . . .168

  702.3 Continuous Flow . . . . . . . . . . . . . .168

  703.0 Size of Drainage Piping . . . . . . . .168

  703.1 Minimum Size . . . . . . . . . . . . . . . .168

  703.2 Maximum Number of Fixture

  Units . . . . . . . . . . . . . . . . . . . . . . .168

  703.3 Sizing per Appendix C . . . . . . . . .168

  704.0 Fixture Connections (Drainage) . .168

  704.1 Inlet Fittings . . . . . . . . . . . . . . . . .168

  704.2 Single Vertical Drainage Pipe . . . .168

  704.3 Commercial Sinks . . . . . . . . . . . . .168

  Table 703.2 Maximum Unit Loading and Maximum Length of Drainage and Vent Piping . . . . . . . . . . . . . .169

  705.0 Joints and Connections . . . . . . . .169

  705.1 ABS and ABS Co-Extruded

  Plastic Pipe and Joints . . . . . . . . .169

  705.2 Cast-Iron Pipe and Joints . . . . . . .169

  705.3 Copper or Copper Alloy Pipe (DWV) and Joints . . . . . . . . .170

  705.4 Galvanized Steel Pipe and Joints . . . . . . . . . . . . . . . . . . .170

  705.5 Polyethylene (PE) Sewer Pipe . . .170

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  TABLE OF CONTENTS

  705.6 PVC and PVC Co-Extruded

  Plastic Pipe and Joining Methods . . . . . . . . . . . . . . . . . . . .171

  705.7 Stainless Steel Pipe and Joints . . .171

  705.8 Vitrified Clay Pipe and Joints . . . .171

  705.9 Special Joints . . . . . . . . . . . . . . . .171

  705.10 Joints Between

  Various Materials . . . . . . . . . . . . .171

  706.0 Changes in Direction of Drainage Flow . . . . . . . . . . . . . . .172

  706.1 Approved Fittings . . . . . . . . . . . . .172

  706.2 Horizontal to Vertical . . . . . . . . . .172

  706.3 Horizontal to Horizontal . . . . . . . .172

  706.4 Vertical to Horizontal . . . . . . . . . .172

  707.0 Cleanouts . . . . . . . . . . . . . . . . . . .172

  707.1 Plug . . . . . . . . . . . . . . . . . . . . . . .172

  Table 707.1 Cleanouts . . . . . . . . . . . . . . . . . . .172

  707.2 Approved . . . . . . . . . . . . . . . . . . .172

• CPC § 1101.4.1 Medium relevance — show source text

  Mounting methods, supports and sample sizes of materials for testing that are not specified in ASTM E84 or UL 723 shall be prohibited.

  [HCD 1 & HCD 2] ABS or PVC installations are limited to not more than two stories of areas of residential accommo- dation.

  [OSHPD 1, 2, 3, 4 & 5] ABS and PVC installations are not allowed.

  1101.4.1 Copper and Copper Alloys. Joints and connections in copper and copper alloy pipe and tube shall be installed in accordance with Section 705.3.

  1101.4.2 Conductors. Conductors installed aboveground in buildings shall comply with the applicable standards referenced in Table 701.2 for aboveground drain, waste, and vent pipe. Conductors installed aboveground level shall be of seamless copper water tube, Type K, L, or M; Schedule 40 copper pipe or Schedule

  40 copper alloy pipe; Type DWV copper drainage tube; service weight cast-iron soil pipe or hubless cast-iron soil pipe; standard weight galvanized steel pipe; stainless steel 304 or 316L [stainless steel 304 pipe and fittings shall not be installed underground and shall be kept not less than 6 inches (152 mm) aboveground], or Schedule 40 ABS or Schedule 40 PVC plastic pipe. 1101.4.2.1 [HCD 1] ABS or PVC installations are limited to not more than two stories of areas of res- idential accommodation.

  1101.4.2.2 [OSHPD 1, 2, 3, 4 & 5] ABS and PVC installations are not allowed.

  1101.4.3 Leaders. Leaders installed outside shall comply with the applicable standards referenced in Table 701.2 for aboveground drain, waste, and vent pipe; aluminum sheet metal; galvanized steel sheet metal; or copper sheet metal. 1101.4.4 Underground Building Storm Drains. Underground building storm drains shall comply with the applicable standards referenced in Table 701.2 for underground drain, waste, and vent pipe. 1101.4.5 Building Storm Sewers. Building storm sewers shall comply with the applicable standards referenced in Table 701.2 for building sewer pipe. 1101.4.6 Subsoil Drains. Subsoil drains shall be open jointed, perforated, or both and constructed of materials in conformance with Table 1101.4.6.

  TABLE 1101.4.6

  MATERIALS FOR SUBSOIL DRAINPIPE AND FITTINGS

  MATERIAL	REFERENCED STANDARD(S)
  PE	ASTM F667
  PVC	ASTM D2729
  Vitrified Clay (Extra strength)	ASTM C4, ASTM C700

  1101.5 Expansion Joints Required. Expansion joints or sleeves shall be provided where warranted by temperature variations or physical conditions. 1101.6 Subsoil Drains. Subsoil drains shall be provided around the perimeter of buildings having basements, cellars, crawl spaces, or floors below grade.

• CPC § 705.8.1 Medium relevance — show source text

  705.8.1 Mechanical Joints. Mechanical joints shall be designed to provide a permanent seal and shall be of the mechanical or push-on joint type. The push-on joint shall include an elastomeric gasket that complies with ASTM C425 and shall provide a compressive force against the spigot and socket after assembly to provide a permanent seal. 705.9 Special Joints. Special joints shall comply with Section 705.9.1 through Section 705.9.4. 705.9.1 Slip Joints. In fixture drains and traps, slip joints of approved materials shall be permitted to be used in accordance with their approvals. 705.9.2 Expansion Joints. Expansion joints shall be accessible, except where in vent piping or drainage stacks, and shall be permitted to be used where necessary to provide for expansion and contraction of the pipes.

  705.9.3 Ground Joint, Flared, or Ferrule Con- nections. Copper or copper alloy ground joint flared, or ferrule-type connections that allow adjustment of tubing, but provide a rigid joint where made up, shall not be considered as slip joints.

  705.9.4 Transition Joint. A solvent cement transition joint between ABS and PVC building drain and building sewer shall be made using listed transition solvent cement in accordance with ASTM D3138.

  [HCD 1 & HCD 2] Plastic pipe and fittings joined with solvent cement shall utilize Low VOC primer(s), if a primer is required, and Low VOC cement(s) as defined in Section 214.0.

  705.10 Joints Between Various Materials. Joints

  between various materials shall be installed in accordance

  with the manufacturer’s installation instructions and with Section 705.10.1 through Section 705.10.4. Mechanical couplings used to join different materials shall comply with ASTM C1173 for belowground use, ASTM C1460 for aboveground use, or ASTM C1461 for aboveground and belowground use. 705.10.1 Copper or Copper Alloy Pipe to Cast- Iron Pipe. Joints from copper or copper alloy pipe or tubing to cast-iron pipe shall be made with a listed compression-type joint or copper alloy ferrule. The copper or copper alloy pipe or tubing shall be soldered or brazed to the ferrule, and the ferrule shall be joined to the castiron hub by a compression or caulked joint.

  2025 CALIFORNIA PLUMBING CODE 171

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  SANITARY DRAINAGE

  705.10.2 Copper or Copper Alloy Pipe to Threaded Pipe Joints. Joints from copper or copper alloy pipe or tubing to threaded pipe shall be made by the use of a listed copper alloy adapter or dielectric fitting. The joint between the copper or copper alloy pipe and the fitting shall be a soldered or brazed, and the connection between the threaded and the fittings shall be made with a standard pipe size threaded joint. 705.10.3 Plastic Pipe to Other Materials. Where connecting plastic pipe to other types of plastic or other types of piping material; approved listed adapter or transition fittings and listed for the specific transition intended shall be used. Except as provided in Section 705.9.4, PVC and ABS pipe and fittings shall not be solvent welded to any other unlike material. **705.10.4 Stainless Steel Pipe to Other Materials.