Residential excess‑flow automatic gas shutoff valves (12‑16‑2)

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

• CRSC § 12-16 High relevance — show source text

  12-16-1 ENGINEERING REGULATIONS—QUALITY AND

  DESIGN OF THE MATERIALS OF CONSTRUCTION

  CALIFORNIA STANDARD FOR EARTHQUAKE-ACTUATED AUTOMATIC GAS SHUTOFF SYSTEMS (SEE CCR TITLE 24, PART 2, CHAPTERS 16 AND 16A, AND CCR TITLE 24, PART 5, CHAPTER 12) STANDARD 12-16-1

  DIVISION OF THE STATE ARCHITECT

  Authority: Sections 19180–19183, Health and Safety Code. Reference: Section 19182, Health and Safety Code.

  DIVISION 1—CONSTRUCTION

  SCOPE

  Sec. 12-16-101. The American Society of Civil Engineers (ASCE) requirements for “Earthquake-Actuated Automatic Gas Shutoff Devices,” ANSI/ASCE/SEI 25-16 (copyright 2016 by ASCE), shall be the applicable standard used by the Division of the State Architect for the certification of these devices.

  Sec. 12-16-101.1. Each installation of a customer-owned device that satisfies this standard shall be in accordance with the California Plumbing Code (CCR Title 24, Part 5).

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  12-16-2 ENGINEERING REGULATIONS—QUALITY AND

  DESIGN OF THE MATERIALS OF CONSTRUCTION

  CALIFORNIA STANDARD FOR RESIDENTIAL EXCESS FLOW ACTUATED AUTOMATIC GAS SHUTOFF VALVES (SEE CCR TITLE 24, PART 5, CHAPTER 12) STANDARD 12-16-2

  DIVISION OF THE STATE ARCHITECT

  Authority: Sections 19200–19204, Health and Safety Code. Reference: Sections 19201.5 and 19202, Health and Safety Code.

  DIVISION 1—CONSTRUCTION

  SCOPE

  Sec. 12-16-201. The American Society for Testing and Materials (ASTM) F2138-12(2017) Standard Specification for Excess Flow Valves for Natural Gas Service, and the American National Standards Institute (ANSI) Z21.93-2017/CSA 6.30-2017 Excess Flow Valves for Natural and LP Gas with Pressure up to 5 psig, shall be the applicable standards used by the Division of the State Architect for certification of these devices.

  Sec. 12-16-201.1. Each installation of a customer-owned device that satisfies this standard shall be in accordance with the California Plumbing Code (CCR Title 24, Part 5).

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  12-31C RADIATION SHIELDING STANDARDS

  STANDARD 12-31C-1

  DEPARTMENT OF HEALTH SERVICES

• CRSC § 12-7 High relevance — show source text

  Fire tests of building
  construction and materials.|SFM|Part 2, Section 703| |Chapter 12-7-2|Reserved||| |Chapter 12-7-3|Fire-resistive standards.
  Fire testing furnaces.|SFM|Part 9, Section 3001| |Chapter 12-7-4|Fire-resistive standards.
  Fire door assembly tests.|SFM|Part 2, Section 716| |Chapter 12-7-5|Fire-resistive standards. Interior
  finish of decorative material.|SFM|Part 2, Chapter 8
  Part 9, Chapter 8| |Chapter 12-7A|Materials and construction methods for
  exterior wildfire exposure|SFM|Part 7, Chapter 5| |Chapter 12-8-1|Fire-resistive standards for fire protection|SFM|Part 2, Sections 408.14 and 435.6.2| |Appendix 12-8-1A|Calculation of the total rate of heat and carbon
  monoxide or carbon dioxide production|SFM|| |Appendix 12-8-1B|Guide to mounting techniques for wall and
  ceiling interior finish material|SFM|| |Chapter 12-10-1|Exits. Power-operated exit doors.|SFM|Part 2, Sections 408.4.2, 1010.1.4.2, 1010.1.9.1| |Chapter 12-10-2|Exits. Single-point latching or locking devices.|SFM|Part 2, Section 1010.2.2
  Part 9, Section 1010.2.2| |Chapter 12-10-3|Exits. Emergency exit and panic hardware.
  |SFM|Part 9, Section 1009.12| |Chapter 12-11A,
  12-11B|Detectable warning products and directional
  surfaces|DSA|Part 2, Sections 1112A.9, 1116A.5, 11B-247,
  11B-406.5.12, 11B-705, 11B-810.5.2| |Chapter 12-12|Reserved||| |Chapter 12-13|Standards for insulating material|CA/SFM|Part 2.5, Section R302.10.1
  Part 6, Section 110.8
  Part 9, Section 720, Table 721.1(1)
  Part 11, Section A5.504.4.8| |Chapter 12-16-1|California standard for earthquake-actuated
  automatic gas shutoff systems|DSA|Part 2, Chapters 16 and 16A
  Part 5, Section 1211.8| |Chapter 12-16-2|California standard for residential excess flow
  actuated automatic gas shutoff valves|DSA|Part 5, Section 1209.1| |Chapter 12-31C|Radiation shielding|DPH|Part 2, Section 3102C| |Chapter 12-71|Air filters|SFM|Part 4, Sections 401.2, 509.2.3, 509.2.3.4
  Part 6, Section 120.1| |Chapter 12-72-1|Protective signaling systems.
  Standard test procedures.|SFM|| |Chapter 12-72-2|Protective signaling systems.

• CRSC § 12.7 High relevance — show source text

  Where mounted on a concrete base, a means shall be provided and installed within [1] / 2 inch (12.7 mm) of the top of the concrete base that will prevent flow from the supply piping in the event that the dispenser is displaced from its mounting. 2. A manual shutoff valve and an excess flow-control check valve shall be located in the liquid line between the pump and the dispenser inlet where the dispensing device is installed at a remote location and is not part of a complete storage and dispensing unit mounted on a common base. 3. An excess flow-control check valve or an emergency shutoff valve shall be installed in or on the dispenser at the point at which the dispenser hose is connected to the liquid piping. 4. A listed automatic-closing type hose nozzle valve with or without a latch-open device shall be provided on island-type dispensers.

  2307.6.2 Hoses. Hoses and piping for the dispensing of LP-gas shall be provided with hydrostatic relief valves. The hose length shall not exceed 18 feet (5486 mm). An approved method shall be provided to protect the hose against mechanical damage.

  2307.6.3 Emergency breakaway devices. Dispenser hoses shall be equipped with a listed emergency breakaway device designed to retain liquid on both sides of the breakaway point. Where hoses are attached to hose-retrieving mechanisms, the emergency breakaway device shall be located such that the breakaway device activates to protect the dispenser from being displaced.

  2307.6.4 Vehicle impact protection. Where installed within 10 feet of vehicle traffic, LP-gas storage containers, pumps and dispensers shall be protected in accordance with Section 2307.5, Item 2.

  2307.7 Public fueling of motor vehicles. Self-service LP-gas dispensing systems, including key, code and card lock dispensing systems, shall be limited to the filling of permanently mounted containers providing fuel to the LP-gas powered vehicle.

  The requirements for self-service LP-gas dispensing systems shall be in accordance with the following:

  1. The arrangement and operation of the transfer of product into a vehicle shall be in accordance with this section and Chapter 61.

  2. The system shall be provided with an emergency shutoff switch located within 100 feet (30 480 mm) of, but not less than 20 feet (6096 mm) from, dispensers.

  3. The owner of the LP-gas motor fuel-dispensing facility or the owner’s designee shall provide for the safe operation of the system and the training of users.

  4. The dispenser and hose-end valve shall release not more than [1] / 8 fluid ounce (4 cc) of liquid to the atmosphere upon breaking the connection with the fill valve on the vehicle.

  5. Portable fire extinguishers shall be provided in accordance with Section 2305.5.

  6. Warning signs shall be provided in accordance with Section 2305.6.

  7. The area around the dispenser shall be maintained in accordance with Section 2305.7.

  2307.8 Overfilling. LP-gas containers shall not be filled with LP-gas in excess of the volume determined using the fixed maximum liquid level gauge installed on the container, the volume determined by the overfilling prevention device installed on the container or the weight determined by the required percentage of the water capacity marked on the container.

  SECTION 2308—COMPRESSED NATURAL GAS MOTOR FUEL-DISPENSING FACILITIES

• CRSC § 1009.12 High relevance — show source text

  Emergency exit and panic hardware.
  |SFM|Part 9, Section 1009.12| |Chapter 12-11A,
  12-11B|Detectable warning products and directional
  surfaces|DSA|Part 2, Sections 1112A.9, 1116A.5, 11B-247,
  11B-406.5.12, 11B-705, 11B-810.5.2| |Chapter 12-12|Reserved||| |Chapter 12-13|Standards for insulating material|CA/SFM|Part 2.5, Section R302.10.1
  Part 6, Section 110.8
  Part 9, Section 720, Table 721.1(1)
  Part 11, Section A5.504.4.8| |Chapter 12-16-1|California standard for earthquake-actuated
  automatic gas shutoff systems|DSA|Part 2, Chapters 16 and 16A
  Part 5, Section 1211.8| |Chapter 12-16-2|California standard for residential excess flow
  actuated automatic gas shutoff valves|DSA|Part 5, Section 1209.1| |Chapter 12-31C|Radiation shielding|DPH|Part 2, Section 3102C| |Chapter 12-71|Air filters|SFM|Part 4, Sections 401.2, 509.2.3, 509.2.3.4
  Part 6, Section 120.1| |Chapter 12-72-1|Protective signaling systems.
  Standard test procedures.|SFM|| |Chapter 12-72-2|Protective signaling systems. Single-and
  multiple-station fire alarm devices
  mechanically operated type.|SFM|| |Chapter 12-72-3|Protective signaling systems. Smoke detectors,
  combustion products type.|SFM||

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  12-1 ADMINISTRATION

  RESERVED

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  12-3 RELEASING SYSTEMS FOR SECURITY BARS IN DWELLINGS

  (This standard includes provisions of Underwriters Laboratories Subject 2326, Appendix B, dated December 17, 1999, reprinted with their permission.)

  INTRODUCTION

  SECTION 12-3-1—SCOPE

  12-3-1.1 These requirements cover releasing systems for bars, grilles, mesh, glazing or other items intended to provide security at doors and windows required for emergency escape from dwelling units. When actuated by the occupant, the system allows the obstructions over the door or window to be moved so occupants can escape in the event of an emergency.

• CRSC § 12-16 High relevance — show source text

  CALIFORNIA STANDARD FOR RESIDENTIAL EXCESS FLOW ACTUATED AUTOMATIC GAS SHUTOFF VALVES (SEE CCR TITLE 24, PART 5, CHAPTER 12) STANDARD 12-16-2

  DIVISION OF THE STATE ARCHITECT

  Authority: Sections 19200–19204, Health and Safety Code. Reference: Sections 19201.5 and 19202, Health and Safety Code.

  DIVISION 1—CONSTRUCTION

  SCOPE

  Sec. 12-16-201. The American Society for Testing and Materials (ASTM) F2138-12(2017) Standard Specification for Excess Flow Valves for Natural Gas Service, and the American National Standards Institute (ANSI) Z21.93-2017/CSA 6.30-2017 Excess Flow Valves for Natural and LP Gas with Pressure up to 5 psig, shall be the applicable standards used by the Division of the State Architect for certification of these devices.

  Sec. 12-16-201.1. Each installation of a customer-owned device that satisfies this standard shall be in accordance with the California Plumbing Code (CCR Title 24, Part 5).

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  12-31C RADIATION SHIELDING STANDARDS

  STANDARD 12-31C-1

  DEPARTMENT OF HEALTH SERVICES

  Authority: Sections 102, 208 and 25811.

  Reference: Sections 102, 208 and 436.5.

  ALL HEALING ARTS X-RAY INSTALLATIONS

  Sec. 12-31C-101. All radiation shielding barriers in rooms and enclosures housing radiation machines shall comply with the mandatory standards and appendices in Report No. 35, “Dental X-RAY Protection”; Report 49, “Structural Shielding Design and Evaluation for Medical use of X-rays and Gamma Rays of Energies up to 10 MeV”; and Report No. 51, “Radiation Protection Design Guidelines for 0.1-100 MeV Particle Accelerator Facilities.” Published by the National Council on Radiation Protection and Measurements, 7910 Woodmont Avenue, Bethesda, Maryland 20814.

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  12-71 AIR FILTERS

  STANDARD 12-71-1

  STATE FIRE MARSHAL

  DESCRIPTION OF TEST APPARATUS, METHOD AND CLASSIFICATION REQUIREMENTS FOR AIR FILTERS

  Sec. 12-71-100.

  (a) Test apparatus.

  1. The test duct, made of M.S. gage galvanized sheet metal reinforced with angle irons, is 21 inches square (13 548 mm [2] ) and 13 [1] / 2 feet (4114 mm) long.
• CRSC § 5.9.2 Medium relevance — show source text

  (1) Check valves.

  (2) Three-way valves (of the type that completely closes one side before starting to open the other side).

  (3) Reverse flow indicators controlling positive shutoff valves.

  (4) Normally closed air-actuated positive shutoff pressure regulators. [NFPA 54:5.9.2] 1308.11 Low-Pressure Protection. A protective device shall be installed between the meter and the appliance or equipment if the operation of the appliance or equipment is such that it could produce a vacuum or a dangerous reduction in gas pressure at the meter. Such protective devices include, but are not limited to, mechanical, diaphragm-operated, or electrically operated low-pressure shutoff valves. [NFPA 54:5.10]

  1308.12 Shutoff Valves. Shutoff valves shall be selected in

  accordance with Table 1308.12. Shutoff valves of size 1 inch

  (25 mm) National Pipe Thread and smaller shall be listed and labeled. Where used outdoors, such use shall be in accordance with the manufacturer’s recommendation. [NFPA 54:5.11]

  «

  «

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  FUEL GAS PIPING

  Exceptions: (1) A regulator and vent limiting means combination listed as complying with CSA/ANSI Z21.80/CSA 6.22, shall not be required to be vented to the outdoors.

  (2) A listed gas appliance regulator factory equipped with a vent limiting device is not required to be vented to the outdoors.

  (2) Materials for vent piping shall be in accordance with Section 1308.4 through Section 1308.4.10.5. (3) The vent terminus shall be designed to prevent the entry of water, insects, and other foreign matter that could cause blockage. (4) Vent piping shall be installed to minimize static loads and bending moments placed on the regulators and gas pressure control devices.

  (5) Vents shall terminate not less than 3 feet (914 mm) from a possible source of ignition. (6) At locations where a vent termination could be submerged during floods or snow accumulations, an antiflood-type breather vent fitting shall be installed, or the vent terminal shall be located above the height of the expected floodwaters or snow.

  (7) Vent piping from pressure regulators and gas pressure controls shall not be connected to a common manifold that serves a bleed line from a diaphragm-type gas valve.

  [NFPA 54:5.14]

  1309.0 Excess Flow Valve.

  1309.1 General. Where automatic excess flow valves are installed, they shall be listed in accordance with ANSI Z21.93/CSA 6.30 and shall be sized and installed in accordance with the manufacturers’ instructions. [NFPA 54:5.12]

  1310.0 Gas Piping Installation. 1310.1 Piping Underground. Underground gas piping shall be installed with sufficient clearance from any other underground structure to avoid contact therewith, to allow maintenance, and to protect against damage from proximity to other structures. Underground plastic piping shall be installed with sufficient clearance or shall be insulated from any source of heat so as to prevent the heat from impairing the serviceability of the pipe.

• CRSC § 415.11.7.2 Medium relevance — show source text

  [F] 415.11.7.2 Location in service corridors. Hazardous production materials supply piping or tubing in service corridors shall be exposed to view.

  [F] 415.11.7.3 Excess flow control. Where HPM gases or liquids are carried in pressurized piping above 15 pounds per square inch gauge (psig) (103.4 kPa), excess flow control shall be provided. Where the piping originates from within a liquid storage room, HPM room or gas room, the excess flow control shall be located within the liquid storage room, HPM room or gas room. Where the piping originates from a bulk source, the excess flow control shall be located as close to the bulk source as practical.

  [F] 415.11.7.4 Installations in corridors and above other occupancies. The installation of HPM piping and tubing within the space defined by the walls of corridors and the floor or roof above, or in concealed spaces above other occupancies, shall be in accordance with Sections 415.11.7.1 through 415.11.7.3 and the following conditions:

  1. Automatic sprinklers shall be installed within the space unless the space is less than 6 inches (152 mm) in the least dimension.

  2. Ventilation not less than six air changes per hour shall be provided. The space shall not be used to convey air from any other area.

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  SPECIAL DETAILED REQUIREMENTS BASED ON OCCUPANCY AND USE

  3. Where the piping or tubing is used to transport HPM liquids, a receptor shall be installed below such piping or tubing. The receptor shall be designed to collect any discharge or leakage and drain it to an approved location. The 1-hour enclosure shall not be used as part of the receptor.

  4. HPM supply piping and tubing and nonmetallic waste lines shall be separated from the corridor and from occupancies other than Group H-5 by fire barriers or by an approved method or assembly that has a fire-resistance rating of not less than 1 hour. Access openings into the enclosure shall be protected by approved fire-protection-rated assemblies.

  5. Ready access to manual or automatic remotely activated fail-safe emergency shutoff valves shall be installed on piping and tubing other than waste lines at the following locations:

  5.1. At branch connections into the fabrication area.

  5.2. At entries into corridors.

  Exception: Transverse crossings of the corridors by supply piping that is enclosed within a ferrous pipe or tube for the width of the corridor need not comply with Items 1 through 5.

  [F] 415.11.7.5 Identification. Piping, tubing and HPM waste lines shall be identified in accordance with ANSI A13.1 to indicate the material being transported.

  [F] 415.11.8 Gas detection systems. A gas detection system complying with Section 916 shall be provided for HPM gases where the physiological warning threshold level of the gas is at a higher level than the accepted permissible exposure limit (PEL) for the gas and for flammable gases in accordance with Sections 415.11.8.1 through 415.11.8.2.

  [F] 415.11.8.1 Where required. A gas detection system shall be provided in the areas identified in Sections 415.11.8.1.1 through 415.11.8.1.4.

• CRSC § 415.11.8.1.3 Medium relevance — show source text

  [F] 415.11.8.1.3 Gas cabinets, exhausted enclosures and gas rooms. A gas detection system shall be provided in gas cabinets and exhausted enclosures for HPM gas. A gas detection system shall be provided in gas rooms where HPM gases are not located in gas cabinets or exhausted enclosures.

  [F] 415.11.8.1.4 Corridors. Where HPM gases are transported in piping placed within the space defined by the walls of a corridor and the floor or roof above the corridor, a gas detection system shall be provided where piping is located and in the corridor.

  Exception: A gas detection system is not required for occasional transverse crossings of the corridors by supply piping that is enclosed in a ferrous pipe or tube for the width of the corridor.

  [F] 415.11.8.2 Gas detection system operation. The gas detection system shall be capable of monitoring the room, area or equipment in which the HPM gas is located at or below all the following gas concentrations:

  1. Immediately dangerous to life and health (IDLH) values where the monitoring point is within an exhausted enclosure, ventilated enclosure or gas cabinet.
  2. Permissible exposure limit (PEL) levels where the monitoring point is in an area outside an exhausted enclosure, ventilated enclosure or gas cabinet.
  3. For flammable gases, the monitoring detection threshold level shall be vapor concentrations in excess of 25 percent of the lower flammable limit (LFL) where the monitoring is within or outside an exhausted enclosure, ventilated enclosure or gas cabinet.
  4. Except as noted in this section, monitoring for highly toxic and toxic gases shall also comply with Chapter 60 of the California Fire Code .

  [F] 415.11.8.2.1 Alarms. The gas detection system shall initiate a local alarm and transmit a signal to the emergency control station when a short-term hazard condition is detected. The alarm shall be both visual and audible and shall provide warning both inside and outside the area where the gas is detected. The audible alarm shall be distinct from all other alarms.

  [F] 415.11.8.2.2 Shutoff of gas supply. The gas detection system shall automatically close the shutoff valve at the source on gas supply piping and tubing related to the system being monitored for which gas is detected when a short-term hazard condition is detected. Automatic closure of shutoff valves shall comply with the following:

  1. Where the gas detection sampling point initiating the gas detection system alarm is within a gas cabinet or exhausted enclosure, the shutoff valve in the gas cabinet or exhausted enclosure for the specific gas detected shall automatically close.
  2. Where the gas detection sampling point initiating the gas detection system alarm is within a room and compressed gas containers are not in gas cabinets or an exhausted enclosure, the shutoff valves on all gas lines for the specific gas detected shall automatically close.

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• CRSC § 43.2 Medium relevance — show source text

  5. This document is part of Change 66.

  Asset Type: Gas Transmission and Distribution Function: Design Document Contact: Gas Design Standard Responsibility List

  Page 4 of 4 PG&E Internal Information, SL2 © 2013 Pacific Gas & Electric Company. All Rights Reserved. Prepared by: AAJ7

  GAS DESIGN STANDARD

  CURB VALVES

  A-43.2

  Publication Date: 04/15/2020 Effective Date: 07/15/2020 Rev. 5

  Purpose and Scope

  This gas design standard (GDS) provides requirements and installation instructions for service valves installed in curb areas. Curb valves are to be installed in accordance with Code of Federal Regulations (CFR) Title 49, Transportation, Part 192—Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards, Section (§) 192.385, “Manual service line shut-off valve installation.”

  1 Installation Guidelines

  1.1. Use an excess flow valve (EFV) instead of, or in addition to, a curb valve, when feasible. See GDS A-93.3, “Excess Flow Valves,” and criteria in Step 1.2 for additional information.

  1.2. Use a curb valve on every new or replaced service line when any of the following conditions exist:

  A. The total meter capacity exceeds 1000 standard cubic feet per hour, and an EFV is not required and not installed.

  (1) Valves meeting the above criteria are critical isolation valves. See Attachment 1, “Installation Guidance” for additional guidance and requirements.

  B. The service riser valve is not readily accessible or is inside a building, such as where the service shutoff valve is enclosed (e.g., basement, garage, or other type of obstructed location).

  C. The service line supplies a building where approximately 100 or more people gather and where the occupancy may be transient. Examples include but are not limited to schools, hospitals, churches, places of incarceration, theaters, and transit centers.

  D. The service line cannot be quickly squeezed off due to wall-to-wall paving, concrete, depth of cover, or other surface conditions and an EFV is not required and not installed. This includes known planned depth of cover or other surface conditions. Typically, a service line that is installed in a lawn area with normal soil conditions (e.g., no wall-to-wall paving, concrete, or other obstruction over the service line) may be quickly squeezed off.

  1.3. Install curb valve at least 5 feet from any building, as close to the property line and gas main as practical, and in a location that should minimize the chances the valve will be paved over, or access obstructed.

  1.4. Install valves using components listed in Table 1.

  A. Follow all instructions shown in GDS A-90.2, “Locating Wire Installation for Plastic Mains and Services.”

  PG&E Internal Information “PG&E” refers to Pacific Gas and Electric Company, a subsidiary of PG&E Corporation.

  ©2020 Pacific Gas and Electric Company. All rights reserved.

  Page 1 of 4

  Curb Valves A-43.2

  Publication Date: 04/15/2020 Effective Date: 07/15/2020 Rev. 5

  1.4 (continued)

• CRSC § 90.2 Medium relevance — show source text

  Compliance Requirement/Regulatory Commitment

  NA

  References

  Plastic Main and Service Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-90 Locating Wire Installation for Direct Burial Plastic Mains and Services . . . . . . . . . . . . . . . . . . . . A-90.2 Approved “Mark and Locate” Instruments, Equipment, Accessories, and Products . . . . . . . . . M-60 Gas Applicant Design Manual

  Appendices

  NA

  Attachments

  NA

  Revision Notes

  Revision 03 has the following changes:

  1. Added Notes for Replacement of Existing Branch Services and for Installation of New Branch Services.

  2. Added Notes for Subdivisions.

  3. Added Exceptions.

  4. Added Method C and D. Reversed order of A and B.

  5. This document is part of Change 66.

  Asset Type: Gas Transmission and Distribution Function: Design Document Contact: Gas Design Standard Responsibility List

  Page 4 of 4 PG&E Internal Information, SL2 © 2013 Pacific Gas & Electric Company. All Rights Reserved. Prepared by: AAJ7

  GAS DESIGN STANDARD

  CURB VALVES

  A-43.2

  Publication Date: 04/15/2020 Effective Date: 07/15/2020 Rev. 5

  Purpose and Scope

  This gas design standard (GDS) provides requirements and installation instructions for service valves installed in curb areas. Curb valves are to be installed in accordance with Code of Federal Regulations (CFR) Title 49, Transportation, Part 192—Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards, Section (§) 192.385, “Manual service line shut-off valve installation.”

  1 Installation Guidelines

  1.1. Use an excess flow valve (EFV) instead of, or in addition to, a curb valve, when feasible. See GDS A-93.3, “Excess Flow Valves,” and criteria in Step 1.2 for additional information.

  1.2. Use a curb valve on every new or replaced service line when any of the following conditions exist:

  A. The total meter capacity exceeds 1000 standard cubic feet per hour, and an EFV is not required and not installed.

  (1) Valves meeting the above criteria are critical isolation valves. See Attachment 1, “Installation Guidance” for additional guidance and requirements.

• CRSC § 93.3 Medium relevance — show source text

  ©2021 Pacific Gas and Electric Company. All rights reserved.

  PG&E Internal Information

  Excess Flow Valves A-93.3

  Publication Date: 10/20/2021 Effective Date: 01/01/2022 Rev. 9c

  7 General EFV Installation Instructions

  7.1. Do not squeeze an EFV.

  7.2. Plastic EFVs with factory-installed pipe pups may be cut on the pup ends as needed for proper installation; however, steel EFVs may not be cut to reduce their length.

  7.3. In most cases, an EFV with plain pipe ends may be connected directly to the service tee, but a short piece of pipe may be installed between the service tee and EFV as needed.

  7.4. Remove debris from the service line before installing an EFV.

  CAUTION

  An EFV installed with the flow direction going the wrong way

  will flow normally but will not activate.

  7.5. When installing the EFV, ensure the directional arrow is in line with the flow of the gas and pointing toward the gas meter.

  7.6. Use an appropriate welding procedure when installing a steel EFV. When welding a steel EFV, place a wet rag over the center of the steel EFV stick while it is being welded in place. Keep welding heat away from the center of the EFV stick.

  7.7. The EFV is supplied with metal identification tags, while some models are also supplied with an adhesive sticker.

  A. Use the supplied nylon tie to install the metal tag.

  B. Install the metal tag on the gas service riser at the gas service valve location.

  C. Install the adhesive sticker (if supplied) on the pressure regulator.

  D. For a branch service line, place a metal tag on the riser for each meter set. Extra metal tags may be purchased using material code M020957. Follow GDS A-42, “Standard Branch Service Installation,” for additional branch marking requirements.

  7.8. Install EFVs on new stub service lines as close as possible to the gas main.

  A. Leave the metal tag and adhesive sticker (if supplied) in the EFV plastic bag.

  B. Wrap the bag around the buried stub.

  C. Attach the metal tag on the riser and sticker (if supplied) to the pressure regulator when the service line is completed.

  D. Ensure a properly sized EFV is present when performing a stub completion, if required.

  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.

  ©2021 Pacific Gas and Electric Company. All rights reserved.

  Page 11 of 19

  Excess Flow Valves A-93.3

  Publication Date: 10/20/2021 Effective Date: 01/01/2022 Rev. 9c

  7.9. Leak Testing

  A. When leak-testing a service line that has an EFV, as required in GDS A-34, “Piping Test Design Requirements,” increase the air pressure slowly. A high flow may cause the EFV to trip. For example, take 15 seconds to pressurize a typical 50"–100" service line of ½" or 1" CTS.

  B. Depressurize the service at a slow flow rate to avoid tripping the EFV.

  7.10. Purging

• CRSC § 1406.2.1.5 Medium relevance — show source text

  1406.2.1.5 Emergency Shutoff Valves. Readily accessible manual or automatic remotely activated fail-safe emergency shutoff valves shall be installed on piping and tubing other than waste lines at the following locations:

  (1) At branch connections into the fabrication area.

  (2) At entries into exit corridors. Excess flow valves shall be installed as required by the fire code.

  1406.2.1.6 Electrical Wiring. Electrical wiring and equipment located in the piping space shall be approved for Class I, Division 2, Hazardous Locations.

  Exception: Occasional transverse crossing of the corridors by supply piping that is enclosed within the corridor need not comply with Section 1406.2.1.1 through Section 1406.2.1.6.

  1406.3 Special Requirements for HPP Gases. In addition to other requirements of this section, HPP gases shall comply with this subsection and the fire code.

  1406.3.1 Special Provisions. Where HPP supply gas is carried in pressurized piping, a fail-safe system shall shut off flow due to a rupture in the piping. Where the piping originates from outside the building, the valve shall be located outside the building as close to the bulk source as practical.

  1406.3.2 Piping and Tubing Installation. Piping and tubing shall be installed in accordance with approved standards. Supply piping for hazardous production materials having a health hazard ranking of 3 or 4 shall have welded connections throughout, unless an exhausted enclosure is provided.

  Exception: Material that is incompatible with ferrous piping shall be permitted to be installed in nonmetallic piping with approved connections.

  1406.3.3 Gas-Detection System. Where hazardous production material gas is used or dispensed and the physiological warning properties of the gas are at a higher level than the accepted permissible exposure limit (PEL) of the gas, a continuous gas-monitoring system shall be provided to detect the presence of the short-term hazard condition. Where dispensing occurs and flammable gases or vapors are capable of being present in quantities in excess of 25 percent of the lower explosive limit (LEL), a continuous gas-monitoring system shall be connected to the emergency control station. The maximum permitted time-weighted average exposures to be utilized shall be as published in 29 CFR 1910.1000.

  336 2025 CALIFORNIA MECHANICAL CODE

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

  CALIFORNIA MECHANICAL CODE – MATRIX ADOPTION TABLE

  CHAPTER 15 – SOLAR ENERGY SYSTEMS

  (Matrix Adoption Tables are non-regulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

  |Adopting Agency
  Adopt Entire Chapter
  Adopt Entire Chapter as
  amended (amended sections
  listed below)
  Adopt only those sections
  that are listed below
  Chapter/Section
  1502.