CPC · California Plumbing Code
What materials and fittings are approved for potable water piping?
In simple terms: any pipe, fitting, solder or cement that will touch drinking water must be listed for potable use (NSF/ANSI/CAN 61) and be one of the materials and standards shown in Table 604.1 of the CPC; brass alloys with more than 15% zinc used in plastic systems must be dezincification‑resistant (§ 604.1).
Last reviewed: July 6, 2026
What the code requires
The California Plumbing Code requires that pipe, tube, fittings, solvent cements, thread sealants, solders, and flux used in potable water systems supplying drinking water must comply with NSF/ANSI/CAN 61. The Code also requires that materials for building supply and water distribution comply with the specific materials and standards listed in Table 604.1. See § 604.1 and Table 604.1 for the controlling lists and references.
All components that come in contact with drinking water — pipe, fittings, joining materials and sealants — must be approved for potable use (NSF/ANSI/CAN 61) and match the permitted materials listed in Table 604.1. (§ 604.1)
Requirements in detail
General requirements (plain language)
- All pipe, fittings, solvent cement, thread sealants, solders, and flux used for potable (drinking) water must comply with NSF/ANSI/CAN 61. § 604.1.
- Except for valves and similar devices, materials in the water supply system must be of a like material, unless the Authority Having Jurisdiction approves otherwise. § 604.1.
- Materials for building supply and water distribution must comply with the referenced standards in Table 604.1. § 604.1; Table 604.1.
Brass / copper-alloy special rule
- Where pipe fittings and valves are made from copper alloys containing more than 15 percent zinc by weight, and are used in plastic piping systems, they must be resistant to dezincification and stress-corrosion cracking in compliance with NSF/ANSI 14 (i.e., dezincification-resistant alloys). § 604.1.
Key items from Table 604.1 (decision table)
The table below summarizes decision-relevant material choices and their Code reference. Use the referenced standards in the right column when verifying approvals.
| Material (common name) | Permitted for Building Supply? | Permitted for Water Distribution? | Typical referenced standard(s) (pipe / fittings) | Code Reference |
|---|---|---|---|---|
| Copper & copper alloys | Yes | Yes | ASTM B42, B88, B75, B251; ASME B16.x; ASSE/IAPMO standards | § 604.1; Table 604.1 |
| CPVC | Yes | Yes | ASTM D2846, F441, F442; CSA B137 | § 604.1; Table 604.1 |
| PEX | Yes | Yes | ASTM F876; ASTM F877; various ASTM/CSA/AWWA standards; ASSE 1061 for push-fit | § 604.1; Table 604.1 |
| PEX-AL-PEX | Yes | Yes (but see local adoption notes) | ASTM F1281; ASTM F1974 | § 604.1; Table 604.1 (notes) |
| PVC (pressure pipe) | Yes (building supply / exterior cold‑water only) | Not for distribution | ASTM D1785, D2241; AWWA C900 | § 604.1; Table 604.1 (note 1) |
| PP (polypropylene) | Yes | Yes | ASTM F2389; CSA B137.11 | § 604.1; Table 604.1 |
| Stainless steel | Yes | Yes | ASTM A269, A312; ASTM A554 | § 604.1; Table 604.1 |
Notes:
- The Table in the Code contains additional materials and detailed referenced standards for each material and for fittings. Always confirm the exact ASTM / ASME / CSA / IAPMO standard listed in Table 604.1 when approving or specifying materials. Table 604.1.
Joining materials and fittings
- Solvent cements, thread sealants, solders and flux that contact potable water must comply with NSF/ANSI/CAN 61. § 604.1.
- For plastic systems, fitting types and joining methods (mechanical, solvent, push‑fit, threaded) are permitted provided the manufacturer’s instructions and the referenced standards are followed (see the material-specific Sections and the referenced standards in Table 604.1). § 604.1; Table 604.1.
Exceptions & special cases
- CPVC restriction for OSHPD: Use of CPVC is not permitted for potable water applications in OSHPD (state hospital/healthcare) facilities — see the exception at § 604.1. Local permitting officers may authorize CPVC in residential interiors under specified conditions (see § 604.1.1). § 604.1; § 604.1.1.
- Plastic vs. metal grounding: If metallic building supply piping is used for grounding, replacement with nonmetallic piping requires an approved alternate grounding system — see § 604.10 for related requirements (if applicable). The listing of materials in Table 604.1 does not by itself address electrical grounding; check the full Code text and local jurisdiction direction. (Table 604.1 provides material approvals; grounding is covered elsewhere in Chapter 6.)
- Dezincification requirement: Brass/copper-alloy fittings and valves with > 15% zinc used in plastic piping must meet dezincification‑resistant standards (NSF/ANSI 14). § 604.1.
- Local authorities may adopt additional restrictions or list permitted products; always verify with the Authority Having Jurisdiction. § 604.1.
Common mistakes
- Assuming "plastic" is one-size-fits-all — different plastics (CPVC, PEX, PEX‑AL‑PEX, PVC, PP) have different adoption notes, limitations, and standards listed in Table 604.1. Check the specific table row and note entries.
- Using joining materials (solvent cement, flux, solder) that are not NSF/ANSI/CAN 61 listed. § 604.1 requires potable-contact joining materials to comply with NSF/ANSI/CAN 61.
- Installing brass fittings with > 15% zinc in plastic systems without verifying dezincification resistance (NSF/ANSI 14). § 604.1.
- Overlooking Table 604.1 referenced standards — specifying a material without verifying it meets the exact ASTM/ASME/CSA standard listed in the table. Table 604.1.
Worked example
Scenario: You are specifying 1" potable domestic hot/cold water distribution inside a new apartment building. Decision steps:
- Choose candidate materials from Table 604.1: Copper (Type L), PEX (ASTM F876/F877), or CPVC (ASTM D2846). Consult Table 604.1 to verify each material is permitted for water distribution. Table 604.1.
- Verify joining materials: If you choose CPVC and plan solvent‑cement joints, confirm the solvent cement is listed to ASTM F493 and is NSF/ANSI/CAN 61 compliant (solder, flux and sealants must also be NSF/ANSI/CAN 61). § 604.1; see Table standards for CPVC.
- Check fittings: If using PEX with brass fittings, ensure those brass fittings are NSF/ANSI 14 resistant to dezincification if the fitting alloy contains > 15% zinc and they will be used in a plastic system (this is a Code requirement). § 604.1.
- Local exceptions: If the project is an OSHPD facility, CPVC is explicitly not permitted — eliminate CPVC and choose PEX or copper per § 604.1 exception.
Result: Document and specify (a) the material standard (e.g., PEX per ASTM F876/F877), (b) fittings standard (e.g., ASTM F1807 crimp fittings or ASTM F1960 expansion fittings), and (c) confirm all joining compounds and fittings are NSF/ANSI/CAN 61 listed. Cite § 604.1 and the relevant Table 604.1 row on the permit submittal.
Related provisions (to review)
- § 604.0 — Materials (general introduction and scope for Chapter 6 materials).
- § 604.1 — Pipe, tube, and fittings; NSF/ANSI/CAN 61 requirement and dezincification requirement.
- Table 604.1 — Materials for building supply and water distribution piping and fittings (lists materials and referenced standards).
- § 604.1.1 — Local authority authorization and conditions for CPVC use in residential interiors (special permit/mitigation language).
Code references
Grounded in the retrieved California Plumbing Code — click a citation to read the verbatim passage:
CPC § 604.2.1 High relevance — show source text
604.2.1 Lead Content of Water Supply Pipe and Fittings. Pipes, pipe fittings, valves, and faucets utilized in the water supply system for non-drinking water applications shall have a maximum of 8 percent lead content.
604.3 Copper or Copper Alloy Tube. Copper or copper alloy tube for water piping shall have a weight of not less than Type L.
Exception: Type M copper or copper alloy tubing shall be permitted to be used for water piping where piping is aboveground in, or on, a building or underground outside of struc tures.
604.4 Hard-Drawn Copper or Copper Alloy Tubing. Hard-drawn copper or copper alloy tubing for water supply and distribution in addition to the required incised marking shall be marked in accordance with ASTM B88. The colors shall be: Type K, green; Type L, blue; and Type M, red.
604.5 Flexible Connectors. Flexible water connectors
shall be installed in accessible locations, and where under continuous pressure shall comply with ASME A112.18.6/CSA B125.6. Flexible water connectors with an excess flow shut off device shall comply with CSA B125.5/IAPMO Z600.
604.6 Cast-Iron Fittings. Cast-iron fittings up to and including 2 inches (50 mm) in size, where used in connection with potable water piping, shall be galvanized.
604.7 Malleable Iron Fittings. Malleable iron water fittings shall be galvanized.
604.8 Previously Used Piping and Tubing. Piping and tubing that has previously been used for a purpose other than for potable water systems shall not be used.
604.9 Epoxy Coating. The epoxy coating used on existing, underground steel building supply piping shall comply with NSF/ANSI/CAN 61 and AWWA C210.
604.10 Plastic Materials. Approved plastic materials shall be permitted to be used in building supply piping, provided that where metal building supply piping is used for electrical grounding purposes, replacement piping, therefore, shall be of like materials.
2025 CALIFORNIA PLUMBING CODE 147
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WATER SUPPLY AND DISTRIBUTION
TABLE 604.1
MATERIALS FOR BUILDING SUPPLY AND WATER DISTRIBUTION PIPING AND FITTINGS
MATERIAL BUILDING SUPPLY
PIPE AND FITTINGSWATER
DISTRIBUTION PIPE
AND FITTINGSREFERENCED
STANDARD(S) PIPEREFERENCED
STANDARD(S) FITTINGSCopper and Copper
AlloysX X ASTM B42, ASTM B43,
ASTM B75, ASTM B88,
ASTM B135, ASTM B251,
ASTM B302, ASTM B447ASME B16.15, ASME B16.18,
ASME B16.22, ASME B16.26,
ASME B16.502, ASME B16.51,
ASSE 1061, ASTM F3226,
AWWA C606, CSA B242,
IAPMO PS 53, IAPMO PS 117CPVC X X ASTM D2846, ASTM F441,
ASTM F442, CSA B137.CPC § 604.0 High relevance — show source text
(1) The chemical dispenser shall comply with ANSI/CAN/ASSE/IAPMO 1055. Where an installation involves a water source coming from a faucet with an integrated vacuum breaker device, a pressure bleed device conforming to IAPMO PS 104 shall be used to protect the vacuum breaker device.
(2) Water supply shall be protected by one of the following methods:
(a) Air gap
(b) Atmospheric vacuum breaker (AVB)
(c) Pressure vacuum breaker backflow prevention assembly (PVB)
(d) Spill-resistant pressure vacuum breaker (SVB)
(e) Reduced-pressure principle backflow prevention assembly (RP)
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«
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604.0 Materials.
604.1 Pipe, Tube, and Fittings. Pipe, tube, fittings, solvent cement, thread sealants, solders, and flux used in potable water systems intended to supply drinking water shall comply with NSF/ANSI/CAN 61. Where pipe fittings and valves are made from copper alloys containing more than 15 percent zinc by weight and are used in plastic piping systems, they shall be resistant to dezincification and stress corrosion cracking in compliance with NSF/ANSI 14.
Materials used in the water supply system, except valves and similar devices, shall be of a like material, except where otherwise approved by the Authority Having Jurisdiction.
Materials for building water piping and building supply piping shall comply with the applicable standards referenced in Table 604.1.
Exception: [OSHPD 1, 2, 3, 4 & 5] Use of CPVC is not per- mitted for potable water applications. 604.1.1 Local Authority to Approve CPVC Pipe Within Residential Buildings Under Specified Con- ditions. [HCD 1 & HCD 2] The local responsible build- ing official of any city, county, or city and county, shall authorize by permit the use of CPVC for hot and cold water distribution systems within the interior of residential build- ings provided all of the following conditions are satisfied:
(a) Permit Conditions. Any building permit issued pur- suant to Section 604.1.1 shall be conditioned on compliance with the mitigation measures set forth in this section.
(b) Approved Materials. Only CPVC plumbing mate- rial listed as an approved material and installed in accordance with this code may be used.
(c) Installation and Use. Any installation and use of CPVC plumbing material pursuant to this section shall comply with all applicable requirements of this code and the manufacturer’s installation instructions.
(d) Certification of Compliance. Prior to issuing a building permit pursuant to Section 604.1.1, the building official shall require as part of the permit- ting process that the contractor, or the appropriate plumbing subcontractors, provide written certifica- tion: (1) that is required in subdivision (e), and (2) that he or she will comply with the flushing proce- dures and worker safety measures of this code and the manufacturer’s installation instructions.
CPC § 605.2 High relevance — show source text
605.2 CPVC Plastic Pipe and Joints. CPVC plastic pipe and fitting joining methods shall be installed in accordance with the manufacturer’s installation instructions and shall comply with Section 605.2.1 through Section 605.2.3. 605.2.1 Mechanical Joints. Mechanical joints shall include compression, flanged, grooved and push fit fittings. 605.2.1.1 Push Fit Fittings. Removable and nonremovable push fit fittings that employ a quick assembly push fit connector shall comply with ASSE 1061.
605.2.2 Solvent Cement Joints. Solvent cement joints for CPVC pipe and fittings shall be clean from dirt and moisture. Solvent cements shall comply with ASTM F493, requiring the use of a primer shall be orange in color. The primer shall be colored and shall comply with ASTM F656. Listed solvent cement that complies with ASTM F493 and that does not require the use of primers, yellow, green, or red in color, shall be permitted for pipe and fittings that comply with ASTM D2846, [1] ⁄ 2 of an inch (15 mm) through 2 inches (50 mm) in diameter or ASTM F442, [1] ⁄ 2 of an inch (15 mm) through 3 inches (80 mm) in diameter. Apply primer where required inside the fitting and to the depth of the fitting on pipe. Apply liberal coat of cement to the outside surface of pipe to depth of fitting and inside of fitting. Place pipe inside fitting to forcefully bottom the pipe in the socket and hold together until joint is set. [HCD 1 & HCD 2] Low VOC One-Step Cement that does not require the use of primer shall be utilized with CPVC pipe and fit- tings, manufactured in accordance with ASTM D2846. 605.2.3 Threaded Joints. Threads shall comply with ASME B1.20.1. A minimum of Schedule 80 shall be permitted to be threaded; however, the pressure rating shall be reduced by 50 percent. The use of molded fittings shall not result in a 50 percent reduction in the pressure rating of the pipe provided that the molded fittings shall be fabricated so that the wall thickness of the material is maintained at the threads. Thread sealant compound that is compatible with the pipe and fitting, insoluble in water,
and nontoxic shall be applied to male threads. Caution shall be used during assembly to prevent over tightening of the CPVC components once the thread sealant has been applied. Female CPVC threaded fittings shall be used with plastic male threads only. 605.3 CPVC/AL/CPVC Plastic Pipe and Joints. Chlorinated polyvinyl chloride/aluminum/chlorinated polyvinyl chloride (CPVC/AL/CPVC) plastic pipe and fitting joining methods shall be installed in accordance with the manufacturer’s installation instructions and shall comply with Section 605.3.1 or Section 605.3.2.
605.3.1 Solvent Cement Joints. Solvent cement joints for CPVC/AL/CPVC pipe and fittings shall be clean from dirt and moisture. Solvent cements that comply with ASTM F493, requiring the use of a primer shall be orange in color. The primer shall be colored and shall comply with ASTM F656.
CPC § 2.3 High relevance — show source text
2.3, 106.2.6, 108.5, 110.2, 113.2, 115.5, 202, 301.1, 301.3, 302.2, 302.2.1, 302.4, 304, 307.1, 308.1, 309.1, 501.1, 501.1.1, 502.1, 502.3, 502.4, 503, 504.1, 601.1, 602, 603, 604, 1101.3, 1103.1, 1103.2, 1301.1, 1301.1.1, 1302.1, 1302.1.4, 1302.1.6, 1303.1, 1304.1.1, 1304.1.3, 1307.1.1, 1401.2, 1501.3, 1504.1, 1505.2, A105.2, A304.1.1, A402.1, A403.2 Level 1 Chapter 7, 104.3.2, 602, 603.2, 604.2, 801.2 Level 2 Chapter 8, 106.2.3, 505.2, 603 Level 3 Chapter 9, 106.2.3, 604, 1011.4 Alternative Materials, Design and Methods of Construction 104.2.3 Ambulatory Care Facility 202, 302.2.1, 406.1.2, 408.3, 501.3, 503.15, 503.17, 804.4,
902.3
Appeals 104.8, 112, 116.6 Approved 202 Approved Agency A304.2.6, 104.2.3.6.1, 202 Archaic Materials and Assemblies
Resource A
Architect (see Registered Design Professional) Area (see Building) Automatic Sprinkler System 110.2, 501.2, 504.5, 802.2.1, 802.6, 803.1.1, 803.2, 804.5.1.1, Table 804.5.1.1(1), 804.5.1.2.1, 804.5.1.2.2, 804.7.1, 804.8, 904.1, 1011.2.1, 1011.6.1, 1011.6.1.1, 1011.7.3, 1011.8.3, 1305.1.1, Table 1305.2.9, 1305.2.10.1, 1305.2.17, 1305.2.17.1, Table 1305.2.17, 1305.2.19, Table 1305.2.19, 1507
CPC § 605.8 High relevance — show source text
Position and compress the split ring by tightening the compression nut onto the insert fitting. 605.8 PE-RT. Polyethylene of raised temperature (PE-RT) tubing and fitting joining methods and shall comply with Section 605.8.1.
605.8.1 Mechanical Joints. Fittings for PE-RT tubing shall comply with the applicable standards listed in Table 604.1. Mechanical joints for PE-RT tubing shall be installed in accordance with the manufacturer’s instal lation instructions.
605.9 PEX Plastic Tubing and Joints. PEX plastic tubing and fitting joining methods shall be installed in accordance with the manufacturer’s installation instructions and shall comply with Section 605.9.1 through Section 605.9.3.
All PEX pipe installed in California must provide at least 30-day UV protection. [OSHPD 1, 1R, 2, 3, 4 & 5] Instal- lation and use of PEX tubing shall be in accordance with manufacturer’s standards. PEX piping shall not be used for any application that would result in noncompliance with any provisions of the California Building Standards Code. 605.9.1 Fittings. Fittings for PEX tubing shall comply with the applicable standards referenced in Table 604.1. PEX tubing that complies with ASTM F876 shall be marked with the applicable standard designation for the
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WATER SUPPLY AND DISTRIBUTION
fittings, specified by the tubing manufacturer for use with the tubing. Brass fittings used with PEX tubing shall meet or exceed NSF/ANSI 14 standards to prevent dezincifi- cation and stress crack corrosion. [OSHPD 1, 1R, 2, 3, 4 & 5] Installation and use of PEX tubing shall be in accordance with manufacturer’s standards. PEX piping shall not be used for any application that would result in noncompliance with any provisions of the California Building Standards Code. 605.9.2 Mechanical Joints. Mechanical joints shall be installed in accordance with the manufacturer’s instal lation instructions.
605.9.3 Push Fit Fittings. Removable and nonremovable push fit fittings that employ a quick assembly push fit connector shall comply with ASSE 1061. 605.10 PEX-AL-PEX Plastic Tubing and Joints. PEXAL-PEX plastic pipe or tubing and fitting joining methods shall be installed in accordance with the manufacturer’s installation instructions and shall comply with Section 605.10.1 and Section 605.10.1.1.
[BSC, DSA-SS, HCD 1 & HCD 2] PEX-AL-PEX is not adopted for use in potable water supply and distribution sys-
tems.
CPC § 604.10.1 High relevance — show source text
ASTM F2159,
ASTM F2735, ASTM F2769,
CSA B137.18| |PEX_3,4_|X|X|ASTM F876,
CSA B137.5, AWWA C9041|ASSE 1061, ASTM F877,
ASTM F1807, ASTM F1960,
ASTM F2080, ASTM F2159,
ASTM F2735, ASTM F3347,
ASTM F3348, CSA B137.5| |PEX-AL-PEX_5_|X|X|ASTM F1281, CSA B137.10|ASTM F1281, ASTM F1974,
ASTM F2434, CSA B137.10| |PP|X|X|ASTM F2389, CSA B137.11|ASTM F2389, CSA B137.11| |PVC|X1|––|ASTM D1785, ASTM D2241,
AWWA C900|ASTM D2464, ASTM D2466,
ASTM D2467, ASTM F1970,
AWWA C907, IAPMO PS 53| |Stainless Steel|X|X|ASTM A269, ASTM A312,
ASTM A554, ASTM A778|ASTM F3226, CSA B242,
IAPMO PS 53, IAPMO PS 117|Notes: 1 For building supply or exterior cold-water applications, not for water distribution piping. 2 For brazed fittings only. 3 [AGR & DPH] When PEX tubing is placed in soil and is used in potable water systems intended to supply drinking water to fixtures or appliances, the tubing
or piping shall be sleeved with a material approved for potable water use in soil or other material that is impermeable to solvents or petroleum products. 4 [AGR & DPH] PEX tubing shall meet or exceed the requirements of ASTM F876-2015a or an equivalent or more stringent standard when used in contin-
uously recirculating hot water systems and the PEX tubing is exposed to the hot water 100% of the time. 5 [For BSC, DSA-SS, HCD 1 & HCD 2] The use of PEX-AL-PEX in potable water supply systems is not adopted.
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WATER SUPPLY AND DISTRIBUTION
Exception: Where a grounding system acceptable to the Authority Having Jurisdiction is installed, inspected, and approved, the metallic pipe shall be permitted to be replaced with nonmetallic pipe. 604.10.1 Tracer Wire. Plastic materials for building supply piping outside underground shall have an electrically continuous corrosion-resistant blue insulated copper tracer wire, or other approved conductor installed adjacent to the piping. Access shall be provided to the tracer wire, or the tracer wire shall terminate aboveground at each end of the nonmetallic piping. The tracer wire size shall be not less than 14 AWG, and the insulation type shall be suitable for direct burial. 604.11 Solder. Solder shall comply with the requirements of Section 604.2.
**604.12 Flexible Corrugated Connectors.
CPC § 5A-3 High relevance — show source text
METHOD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5A-3
501A General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5A-3
502A Additions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5A-4
503A Alterations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5A-5
504A Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5A-7
505A Reserved. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5A-7
506A Change of Occupancy. . . . . . . . . . . . . . . . . . . . . . . . . . . .5A-7
CHAPTER 6 CLASSIFICATION OF WORK . . . . . . . . . . . . . . . 6-3
601 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
602 Alteration—Level 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
603 Alteration—Level 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
604 Alteration—Level 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
605 Change of Occupancy. . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
606 Additions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
607 Historic Buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
CHAPTER 7 ALTERATIONS—LEVEL 1 . . . . . . . . . . . . . . . . . .7-3
701 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
702 Building Elements and Materials . . . . . . . . . . . . . . . . . 7-3
CPC § 000002-001 High relevance — show source text
(in)|EFV
Flow
Series|Maximum
Total
Connected
Load
(scfh)|Maximum
Service
Length
(ft)|Maximum
Total
Connected
Load
(scfh)|Maximum
Service
Length
(ft)|Maximum
Service
Length
(ft)|Maximum
Service
Length
(ft)|Maximum
Service
Length
(ft)**| |½ CTS|400|357|177|400|341|M025078|Lyall|EFV100-
000002-001| |½ CTS|400|385|122|395|251|M020947|Honeywell
Perfection|51716| |½ CTS|775|692|30|775|72|M025079|Lyall|EFV100-
000011-001| |½ CTS|800|700|28|790|66|M020949|Honeywell
Perfection|51713| |1 CTS|775|692|1419|775|2916|M025080|Lyall|EFVEC-
BB3DT00-004| |1 CTS|800|700|1000|790|2355|M020951|Honeywell
Perfection|51715XMD| |1 CTS|1200|1072|523|1200|1196|M025081|Lyall|EFVED-
BB3DT00-004| |1 CTS|1800|1584|104|1800|385|M025082|Lyall|EFVEE-
BB3DT12-004| |1 CTS|1800|1620|122|1775|437|M020954|Honeywell
Perfection|51745XMD| |1¼ IPS|2600|2322|952|2600|1897|M025084|Lyall|EFV300-
000002-003| |2 IPS|55003|4818|1495|5000|2855|M025086|Lyall|EFV300-
000008-002|- The values in this column are based on a 10 psig design pressure.
- The values in this column are based on a 20 psig design pressure.
- 2-inch IPS 5500 EFVs can be used with two reducers and installed on 1¼ IPS service lines. Appendix B provides examples to perform equivalent length calculations, where the maximum service length for NOP ≥ 10 psig is 239 ft and the maximum service length for NOP ≥ 24 psig is 456 ft.
4.3. Specifications and material codes for electrofusion couplings with an incorporated EFV are listed in Table 5.
Printed copies of this document might be out of date. The Technical Information Library (TIL) has the current version.
PG&E Internal Information “PG&E” refers to Pacific Gas and Electric Company, a subsidiary of PG&E Corporation.
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Excess Flow Valves A-93.3
CPC § 8.2.1.2 High relevance — show source text
RESOURCE A-120 2025 CALIFORNIA EXISTING BUILDING CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
Accessibility 1.8.2.1.2, 1.9.1, 104.2.4, 306, 801.1, 901.2, 1101.2, 1508, Appendix B Additions Chapter 11, 101.2, 101.3, 101.4, 104.3, 104.3.1, 104.2.4.1, 106.2.3, 109.3.3, 113.2, 115.5, 202, 301.1, 301.3, 302.2, 302.2.1, 303.2, 304.1, 304.2, 307.1, 308.1, 309, 501.1, 502, 601.1, 606, 1301.1, 1301.1.1, 1302.1, 1302.1.3, 1303.1, 1304.1.1, 1304.1.3, 1501.3, 1505.2 Administration Chapter 1 Alterations Chapter 7, Chapter 8, Chapter 9, 101.2, 101.3, 101.4, 101.6, 104.3, 104.3.1, 104.3.2, 104.2.4.1, 105.1.1, 105.1.2, 105.2.2, 105.2.3, 106.2.3, 106.2.6, 108.5, 110.2, 113.2, 115.5, 202, 301.1, 301.3, 302.2, 302.2.1, 302.4, 304, 307.1, 308.1, 309.1, 501.1, 501.1.1, 502.1, 502.3, 502.4, 503, 504.1, 601.1, 602, 603, 604, 1101.3, 1103.1, 1103.2, 1301.1, 1301.1.1, 1302.1, 1302.1.4, 1302.1.6, 1303.1, 1304.1.1, 1304.1.3, 1307.1.1, 1401.2, 1501.3, 1504.1, 1505.2, A105.2, A304.1.1, A402.1, A403.2 Level 1 Chapter 7, 104.3.2, 602, 603.2, 604.2, 801.2 Level 2 Chapter 8, 106.2.3, 505.2, 603 Level 3 Chapter 9, 106.2.3, 604, 1011.4 Alternative Materials, Design and Methods of Construction 104.2.3 Ambulatory Care Facility 202, 302.2.1, 406.1.2, 408.3, 501.3, 503.15, 503.17,
CPC § 6-3 High relevance — show source text
601 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
602 Alteration—Level 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
603 Alteration—Level 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
604 Alteration—Level 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
605 Change of Occupancy. . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
606 Additions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
607 Historic Buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
CHAPTER 7 ALTERATIONS—LEVEL 1 . . . . . . . . . . . . . . . . . .7-3
701 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
702 Building Elements and Materials . . . . . . . . . . . . . . . . . 7-3
703 Fire Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
704 Means of Egress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
705 Reroofing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
706 Structural. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
707 Reserved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
708 Energy Conservation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
CHAPTER 8 ALTERATIONS—LEVEL 2 . . . . . . . . . . . . . . . . . .8-3
801 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
802 Building Elements and Materials . . . . . . . . . . . . . . . . . 8-3
CPC § 601.0 High relevance — show source text
Q 601.0 Water Supply. Q 601.1 General. Indoor horticulture water distribution systems shall be supplied with potable water in accordance with Chapter 6. Q 601.2 Materials. Pipe, tube, and fitting materials in contact with potable water, drinking water, or both shall be in accordance with Section 604.0.
Q 601.3 Protection. Potable water piping used for irrigation purposes shall be equipped with an approved backflow prevention device or assembly in accordance with Table 603.2.
Q 601.4 Alternate Water Supply. Where permitted, agricultural water may be used or alternate water sources in accordance with Appendix K.
Q 701.0 Storage Tanks. Q 701.1 Construction. Where storage tanks are used, they shall be approved by the Authority Having Jurisdiction. Potable water storage tanks shall comply with Section 607.0. Rainwater catchment storage tanks shall comply with Appendix K or in accordance with the Authority Having Jurisdiction.
Q 801.0 Fertigation and Irrigation Equipment. Q 801.1 Installation. Nutrient tanks and irrigation equipment shall be installed in accordance with the manufacturer’s instructions. When connected to the potable water supply, tanks and irrigation equipment shall be located downstream of water storage tank and be protected by an approved backflow device or method in accordance with Table 603.2
Q 801.2 Materials and Construction. The piping, components, and devices shall be compatible with the additives or nutrients used. Above grade storage tanks shall be of an opaque material, approved for aboveground use in direct sunlight, or shall be shielded from direct sunlight.
2025 CALIFORNIA PLUMBING CODE 541
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APPENDIX Q
Q 901.0 Sanitary Drainage and Indirect Wastes. Q 901.1 General. Sanitary drainage shall be in accordance with Chapter 7. Indirect wastes shall be in accordance with Chapter 8. The drainage system shall be compatible with the discharge liquid waste.
Q 901.2 Hazardous Materials. Hazardous materials shall not be discharged into the sanitary sewer, storm drain, or on the ground. Q 901.3 Agricultural Water Waste. Agricultural water shall be discharged in accordance with the local, state, and federal regulations as approved by the Authority Having Jurisdiction. Where agricultural water discharges to the outdoors, and is not connected to the sanitary sewer, the piping shall be installed as to restrict rodents or vermin from entering the building. Q 901.4 Floor Drains, Floor Sinks, and Receptors. Wastewater shall discharge into an approved receptor. Receptors shall be compatible with the wastewater and installed in accordance with this code.
Q 901.4.1 Plant Storage Areas. Where drains are provided in spaces where plants are stored, such drains shall be installed with indirect waste piping. Each indirect waste pipe from plant storage areas shall be separately piped to the indirect waste receptor and shall not combine with other indirect waste pipes.
Q 1001.0 Facilities.
Q 1001.1 Toilet Facilities. Toilet facilities shall be provided in accordance with the occupancy type.
Q 1001.2 Location. Toilet facilities shall be located in such a manner to prevent contamination of plants during harvesting, holding, manufacturing/processing, and packing.
CPC § 505.2 High relevance — show source text
3, 505.2, 603 Level 3 Chapter 9, 106.2.3, 604, 1011.4 Alternative Materials, Design and Methods of Construction 104.2.3 Ambulatory Care Facility 202, 302.2.1, 406.1.2, 408.3, 501.3, 503.15, 503.17, 804.4,
902.3
Appeals 104.8, 112, 116.6 Approved 202 Approved Agency A304.2.6, 104.2.3.6.1, 202 Archaic Materials and Assemblies
Resource A
Architect (see Registered Design Professional) Area (see Building) Automatic Sprinkler System 110.2, 501.2, 504.5, 802.2.1, 802.6, 803.1.1, 803.2, 804.5.1.1, Table 804.5.1.1(1), 804.5.1.2.1, 804.5.1.2.2, 804.7.1, 804.8, 904.1, 1011.2.1, 1011.6.1, 1011.6.1.1, 1011.7.3, 1011.8.3, 1305.1.1, Table 1305.2.9, 1305.2.10.1, 1305.2.17, 1305.2.17.1, Table 1305.2.17, 1305.2.19, Table 1305.2.19, 1507
Board of Appeals 104.8, 112, Appendix D Building Area 503.5, 503.7, 503.8, 503.9, 503.10, 503.11, 503.16, 503.18, 506.5.2, 506.5.3, 506.6, 603.1, 604.1, 1006.2, 1006.3, 1011.6, 1011.6.1, 1011.6.1.1, 1011.6.2, Table 1011.6, 1102, 1302.1.3, 1305.2.2 Dangerous 104.4, 114.1, 117.1, 202, 302.1 Height 202, 502.1, 804.4.1.1, 1011.6, Table 1011.6, 1011.7.1, 1011.7.3, 1102, 1302.1.3, 1305.2.1, Table 1306.1, A301.2 Historic Chapter 12, 202, 401.1, 501.1, 507, 601.1, 607, 701.1, 1301.1, B101 Relocatable 202, 1401.1 Relocated Chapter 14, 301.4
INDEX
Relocation of 101.2, 101.3, 101.4, 104.3, 301.1 Unsafe 104.4, 115, 116, 117.1, 202
Frequently asked questions
Can I use any solvent cement on CPVC for potable water?
No. Solvent cement used on CPVC for potable water must be compatible with the CPVC standard in Table 604.1 and the solvent cement must be approved for potable use (NSF/ANSI/CAN 61) and meet the referenced cement standards (see Table 604.1 and § 604.1).
Are push‑fit fittings allowed on potable systems?
Yes — push‑fit fittings are permitted when they meet the applicable referenced standards (for example ASSE 1061 for push‑fit connectors) listed in Table 604.1 and comply with § 604.1 requirements.
What if a brass fitting has more than 15% zinc?
If a copper‑alloy fitting or valve contains more than 15% zinc and is used in a plastic piping system, it must be dezincification‑resistant and meet NSF/ANSI 14 per § 604.1.
Can PVC be used for indoor hot and cold distribution?
PVC pressure pipe is listed in Table 604.1 for certain building supply or exterior cold‑water uses but is not listed as a general water distribution material for hot/cold interior distribution (see Table 604.1 notes). Confirm the specific table row and note before specifying.
Who decides if a non‑listed material can be used?
The Authority Having Jurisdiction (AHJ) may approve alternate materials, but you must demonstrate compliance with the applicable performance and health standards and reference § 604.1 and Table 604.1 when requesting approval.
More in California Plumbing Code
- Administration
- Definitions
- General Regulations
- Plumbing Fixtures and Fixture Fittings
- Water Heaters
- Water Supply and Distribution
- Sanitary Drainage (Drain, Waste, and Vent)
- Indirect Wastes
- Vents
- Traps and Interceptors
- Storm Drainage
- Fuel Gas Piping
- Health Care Facilities — Medical Gas and Medical Vacuum Systems
- Alternate Water Sources and Nonpotable Rainwater Catchment Systems
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