IFGC 12:2012 Edition

$45.77

International Fuel Gas Code

Published By	Publication Date	Number of Pages
ICC	2012	185

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Category: ICC

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Description

Addresses the design and installation of fuel gas systems and gas fired appliances through requirements that emphasize performance. Changes include:

All piping, tubing and fittings in a fuel gas system must bear the manufacturer’s identification.
Clarification that gypsum board requires reduced clearances to combustibles the same as any other combustible material.
Requirement of flashback arrestors and check valves in fuel gas systems used with oxygen.

PDF Catalog

PDF Pages	PDF Title
1	2012 INTERNATIONAL FUEL GAS CODE®
2	2012 INTERNATIONAL FUEL GAS CODE® IFGC® TITLE PAGE
3	COPYRIGHT
4	PREFACE
8	EFFECTIVE USE OF THE INTERNATIONAL FUEL GAS CODE
10	LEGISLATION
12	TABLE OF CONTENTS
14	CHAPTER 1 SCOPE AND ADMINISTRATION PART 1—SCOPE AND APPLICATION SECTION 101 (IFGC) GENERAL
15	SECTION 102 (IFGC) APPLICABILITY PART 2—ADMINISTRATION AND ENFORCEMENT SECTION 103 (IFGC) DEPARTMENT OF INSPECTION
16	SECTION 104 (IFGC) DUTIES AND POWERS OF THE CODE OFFICIAL SECTION 105 (IFGC) APPROVAL
17	SECTION 106 (IFGC) PERMITS
18	SECTION 107 (IFGC) INSPECTIONS AND TESTING
20	SECTION 108 (IFGC) VIOLATIONS SECTION 109 (IFGC) MEANS OF APPEAL
21	SECTION 110 (IFGC) TEMPORARY EQUIPMENT, SYSTEMS AND USES
22	CHAPTER 2 DEFINITIONS SECTION 201 (IFGC) GENERAL SECTION 202 (IFGC) GENERAL DEFINITIONS
30	CHAPTER 3 GENERAL REGULATIONS SECTION 301 (IFGC) GENERAL
31	SECTION 302 (IFGC) STRUCTURAL SAFETY SECTION 303 (IFGC) APPLIANCE LOCATION
32	SECTION 304 (IFGS) COMBUSTION, VENTILATION AND DILUTION AIR EQUATION 3-1 EQUATION 3-2
33	FIGURE 304.5.3 ALL AIR FROM INSIDE THE BUILDING (see Section 304.5.3) FIGURE 304.6.1(1) ALL AIR FROM OUTDOORS—INLET AIR FROM VENTILATED CRAWL SPACE AND OUTLET AIR TO VENTILATED ATTIC (see Section 304.6.1) FIGURE 304.6.1(2) ALL AIR FROM OUTDOORS THROUGH VENTILATED ATTIC (see Section 304.6.1)
34	FIGURE 304.6.1(3) ALL AIR FROM OUTDOORS (see Section 304.6.1) FIGURE 304.6.2 SINGLE COMBUSTION AIR OPENING,ALL AIR FROM THE OUTDOORS (see Section 304.6.2)
35	SECTION 305 (IFGC) INSTALLATION
36	SECTION 306 (IFGC) ACCESS AND SERVICE SPACE
38	SECTION 307 (IFGC) CONDENSATE DISPOSAL SECTION 308 (IFGS) CLEARANCE REDUCTION
39	TABLE 308.2 a through k REDUCTION OF CLEARANCES WITH SPECIFIED FORMS OF PROTECTION SECTION 309 (IFGC) ELECTRICAL
40	FIGURE 308.2(1) EXTENT OF PROTECTION NECESSARY TO REDUCE CLEARANCES FROM APPLIANCE OR VENT CONNECTIONS FIGURE 308.2(2) WALL PROTECTOR CLEARANCE REDUCTION SYSTEM FIGURE 308.2(3) MASONRY CLEARANCE REDUCTION SYSTEM
41	SECTION 310 (IFGS) ELECTRICAL BONDING
42	CHAPTER 4 GAS PIPING INSTALLATIONS SECTION 401 (IFGC) GENERAL SECTION 402 (IFGS) PIPE SIZING EQUATION 4-1
43	EQUATION 4-2 TABLE 402.4 Cr AND Y VALUES FOR NATURAL GAS AND UNDILUTED PROPANE AT STANDARD CONDITIONS TABLE 402.2 APPROXIMATE GAS INPUT FOR TYPICAL APPLIANCES
44	TABLE 402.4(1) SCHEDULE 40 METALLIC PIPE
45	TABLE 402.4(2) SCHEDULE 40 METALLIC PIPE
46	TABLE 402.4(3) SCHEDULE 40 METALLIC PIPE
47	TABLE 402.4(4) SCHEDULE 40 METALLIC PIPE
48	TABLE 402.4(5) SCHEDULE 40 METALLIC PIPE
49	TABLE 402.4(6) SCHEDULE 40 METALLIC PIPE
50	TABLE 402.4(7) SCHEDULE 40 METALLIC PIPE
51	TABLE 402.4(8) SEMIRIGID COPPER TUBING
52	TABLE 402.4(9) SEMIRIGID COPPER TUBING
53	TABLE 402.4(10) SEMIRIGID COPPER TUBING
54	TABLE 402.4(11) SEMIRIGID COPPER TUBING
55	TABLE 402.4(12) SEMIRIGID COPPER TUBING
56	TABLE 402.4(13) SEMIRIGID COPPER TUBING
57	TABLE 402.4(14) SEMIRIGID COPPER TUBING
58	TABLE 402.4(15) CORRUGATED STAINLESS STEEL TUBING (CSST)
59	TABLE 402.4(16) CORRUGATED STAINLESS STEEL TUBING (CSST)
60	TABLE 402.4(17) CORRUGATED STAINLESS STEEL TUBING (CSST)
61	TABLE 402.4(18) CORRUGATED STAINLESS STEEL TUBING (CSST)
62	TABLE 402.4(19) CORRUGATED STAINLESS STEEL TUBING (CSST)
63	TABLE 402.4(20) POLYETHYLENE PLASTIC PIPE
64	TABLE 402.4(21) POLYETHYLENE PLASTIC PIPE
65	TABLE 402.4(22) POLYETHYLENE PLASTIC PIPE
66	TABLE 402.4(23) POLYETHYLENE PLASTIC TUBING TABLE 402.4(24) POLYETHYLENE PLASTIC TUBING
67	TABLE 402.4(25) SCHEDULE 40 METALLIC PIPE
68	TABLE 402.4(26) SCHEDULE 40 METALLIC PIPE
69	TABLE 402.4(27) SCHEDULE 40 METALLIC PIPE
70	TABLE 402.4(28) SCHEDULE 40 METALLIC PIPE
71	TABLE 402.4(29) SEMIRIGID COPPER TUBING
72	TABLE 402.4(30) SEMIRIGID COPPER TUBING
73	TABLE 402.4(31) SEMIRIGID COPPER TUBING
74	TABLE 402.4(32) CORRUGATED STAINLESS STEEL TUBING (CSST)
75	TABLE 402.4(33) CORRUGATED STAINLESS STEEL TUBING (CSST)
76	TABLE 402.4(34) CORRUGATED STAINLESS STEEL TUBING (CSST)
77	TABLE 402.4(35) POLYETHYLENE PLASTIC PIPE
78	TABLE 402.4(36) POLYETHYLENE PLASTIC PIPE
79	TABLE 402.4(37) POLYETHYLENE PLASTIC TUBING
80	SECTION 403 (IFGS) PIPING MATERIALS
81	TABLE 403.9.2 SPECIFICATIONS FOR THREADING METALLIC PIPE
82	SECTION 404 (IFGC) PIPING SYSTEM INSTALLATION
84	SECTION 405 (IFGS) PIPING BENDS AND CHANGES IN DIRECTION SECTION 406 (IFGS) INSPECTION, TESTING AND PURGING
86	TABLE 406.7.1.1 SIZE AND LENGTH OF PIPING
87	SECTION 407 (IFGC) PIPING SUPPORT SECTION 408 (IFGC) DRIPS AND SLOPED PIPING FIGURE 408.4 METHOD OF INSTALLING A TEE FITTING SEDIMENT TRAP SECTION 409 (IFGC) SHUTOFF VALVES TABLE 409.1.1 MANUAL GAS VALVE STANDARDS
88	SECTION 410 (IFGC) FLOW CONTROLS
89	SECTION 411 (IFGC) APPLIANCE AND MANUFACTURED HOME CONNECTIONS
90	SECTION 412 (IFGC) LIQUEFIED PETROLEUM GAS MOTOR VEHICLE FUEL-DISPENSING FACILITIES SECTION 413 (IFGC) COMPRESSED NATURAL GAS MOTOR VEHICLE FUEL-DISPENSING FACILITIES
92	[F] TABLE 413.9.2.3 SEPARATION DISTANCE FOR ATMOSPHERIC VENTING OF CNG SECTION 414 (IFGC) SUPPLEMENTAL AND STANDBY GAS SUPPLY SECTION 415 (IFGS) PIPING SUPPORT INTERVALS TABLE 415.1 SUPPORT OF PIPING SECTION 416 (IFGS) OVERPRESSURE PROTECTION DEVICES
96	CHAPTER 5 CHIMNEYS AND VENTS SECTION 501 (IFGC) GENERAL
97	SECTION 502 (IFGC) VENTS
98	SECTION 503 (IFGS) VENTING OF APPLIANCES
99	TABLE 503.4 TYPE OF VENTING SYSTEM TO BE USED
101	FIGURE 503.6.4 TERMINATION LOCATIONS FOR GAS VENTS WITH LISTED CAPS 12 INCHES OR LESS IN SIZE AT LEAST 8 FEET FROM A VERTICAL WALL
104	TABLE 503.10.2.4 MINIMUM THICKNESS FOR GALVANIZED STEEL VENT CONNECTORS FOR LOW-HEAT APPLIANCES TABLE 503.10.2.5 MINIMUM THICKNESS FOR STEEL VENT CONNECTORS FOR MEDIUM-HEAT APPLIANCES
105	TABLE 503.10.5a CLEARANCES FOR CONNECTORS
107	SECTION 504 (IFGS) SIZING OF CATEGORY I APPLIANCE VENTING SYSTEMS
109	TABLE 504.3.2 MAXIMUM VENT CONNECTOR LENGTH
111	SECTION 505 (IFGC) DIRECT-VENT, INTEGRAL VENT, MECHANICAL VENT AND VENTILATION/EXHAUST HOOD VENTING SECTION 506 (IFGC) FACTORY-BUILT CHIMNEYS
112	TABLE 504.2(1) TYPE B DOUBLE-WALL GAS VENT
113	TABLE 504.2(1)—continued TYPE B DOUBLE-WALL GAS VENT
114	TABLE 504.2(1)—continued TYPE B DOUBLE-WALL GAS VENT
115	TABLE 504.2(1)—continued TYPE B DOUBLE-WALL GAS VENT
116	TABLE 504.2(2) TYPE B DOUBLE-WALL GAS VENT
117	TABLE 504.2(2)-continued TYPE B DOUBLE-WALL GAS VENT
118	TABLE 504.2(3) MASONRY CHIMNEY
119	TABLE 504.2(3)—continued MASONRY CHIMNEY
120	TABLE 504.2(4) MASONRY CHIMNEY
121	TABLE 504.2(4)—continued MASONRY CHIMNEY
122	TABLE 504.2(5) SINGLE-WALL METAL PIPE OR TYPE B ASBESTOS CEMENT VENT
123	TABLE 504.2(6) EXTERIOR MASONRY CHIMNEY
124	TABLE 504.3(1) TYPE B DOUBLE-WALL VENT
125	TABLE 504.3(1)-continued TYPE B DOUBLE-WALL VENT
126	TABLE 504.3(2) TYPE B DOUBLE-WALL VENT
127	TABLE 504.3(3) MASONRY CHIMNEY
128	TABLE 504.3(4) MASONRY CHIMNEY
129	TABLE 504.3(5) SINGLE-WALL METAL PIPE OR TYPE ASBESTOS CEMENT VENT
130	TABLE 504.3(6a) EXTERIOR MASONRY CHIMNEY TABLE 504.3(6b) EXTERIOR MASONRY CHIMNEY TABLE 504.3(6b) EXTERIOR MASONRY CHIMNEY-continued
131	TABLE 504.3(7a) EXTERIOR MASONRY CHIMNEY TABLE 504.3(7b) EXTERIOR MASONRY CHIMNEY TABLE 504.3(7b) EXTERIOR MASONRY CHIMNEY—continued
132	CHAPTER 6 SPECIFIC APPLIANCES SECTION 601 (IFGC) GENERAL SECTION 602 (IFGC) DECORATIVE APPLIANCES FOR INSTALLATION IN FIREPLACES SECTION 603 (IFGC) LOG LIGHTERS SECTION 604 (IFGC) VENTED GAS FIREPLACES (DECORATIVE APPLIANCES) SECTION 605 (IFGC) VENTED GAS FIREPLACE HEATERS SECTION 606 (IFGC) INCINERATORS AND CREMATORIES SECTION 607 (IFGC) COMMERCIAL-INDUSTRIAL INCINERATORS SECTION 608 (IFGC) VENTED WALL FURNACES
133	SECTION 609 (IFGC) FLOOR FURNACES SECTION 610 (IFGC) DUCT FURNACES SECTION 611 (IFGC) NONRECIRCULATING DIRECT-FIRED INDUSTRIAL AIR HEATERS
134	SECTION 612 (IFGC) RECIRCULATING DIRECT-FIRED INDUSTRIAL AIR HEATERS SECTION 613 (IFGC) CLOTHES DRYERS SECTION 614 (IFGC) CLOTHES DRYER EXHAUST
135	[M] TABLE 614.6.5.1 DRYER EXHAUST DUCT FITTING EQUIVALENT LENGTH
136	SECTION 615 (IFGC) SAUNA HEATERS SECTION 616 (IFGC) ENGINE AND GAS TURBINE-POWERED EQUIPMENT
137	SECTION 617 (IFGC) POOL AND SPA HEATERS SECTION 618 (IFGC) FORCED-AIR WARM-AIR FURNACES
138	SECTION 619 (IFGC) CONVERSION BURNERS SECTION 620 (IFGC) UNIT HEATERS SECTION 621 (IFGC) UNVENTED ROOM HEATERS SECTION 622 (IFGC) VENTED ROOM HEATERS SECTION 623 (IFGC) COOKING APPLIANCES
139	SECTION 624 (IFGC) WATER HEATERS SECTION 625 (IFGC) REFRIGERATORS SECTION 626 (IFGC) GAS-FIRED TOILETS SECTION 627 (IFGC) AIR-CONDITIONING APPLIANCES
140	SECTION 628 (IFGC) ILLUMINATING APPLIANCES SECTION 629 (IFGC) SMALL CERAMIC KILNS
141	SECTION 630 (IFGC) INFRARED RADIANT HEATERS SECTION 631 (IFGC) BOILERS SECTION 632 (IFGC) EQUIPMENT INSTALLED IN EXISTING UNLISTED BOILERS SECTION 633 (IFGC) STATIONARY FUEL-CELL POWER SYSTEMS SECTION 634 (IFGS) CHIMNEY DAMPER OPENING AREA TABLE 634.1 FREE OPENING AREA OF CHIMNEY DAMPER FOR VENTING FLUE GASES FROM UNLISTED DECORATIVE APPLIANCES FOR INSTALLATION IN VENTED FIREPLACES SECTION 635 (IFGC) GASEOUS HYDROGEN SYSTEMS SECTION 636 (IFGC) OUTDOOR DECORATIVE APPLIANCES
142	CHAPTER 7 GASEOUS HYDROGEN SYSTEMS SECTION 701 (IFGC) GENERAL SECTION 702 (IFGC) GENERAL DEFINITIONS SECTION 703 (IFGC) GENERAL REQUIREMENTS
143	SECTION 704 (IFGC) PIPING, USE AND HANDLING
144	SECTION 705 (IFGC) TESTING OF HYDROGEN PIPING SYSTEMS
145	SECTION 706 (IFGC) LOCATION OF GASEOUS HYDROGEN SYSTEMS
146	SECTION 707 (IFGC) OPERATION AND MAINTENANCE OF GASEOUS HYDROGEN SYSTEMS SECTION 708 (IFGC) DESIGN OF LIQUEFIED HYDROGEN SYSTEMS ASSOCIATED WITH HYDROGEN VAPORIZATION OPERATIONS
148	IFGC/IFGS CHAPTER 8 REFERENCED STANDARDS ANSI
149	ASME ASTM CGA CSA
150	DOTn ICC MSS NFPA
151	UL
152	APPENDIX A (IFGS) SIZING AND CAPACITIES OF GAS PIPING A.1 GENERAL PIPING CONSIDERATIONS A.2 DESCRIPTION OF TABLES
153	TABLE A.2. 2EQUIVALENT LENGTHS OF PIPE FITTINGS AND VALVES
154	TABLE A.2.2—continued EQUIVALENT LENGTHS OF PIPE FITTINGS AND VALVES
155	TABLE A.2.4 MULTIPLIERS TO BE USED WITH TABLES 402.4(1) THROUGH 402.4(22) WHERE THE SPECIFIC GRAVITY OF THE GAS IS OTHER THAN 0.60 A.3 USE OF CAPACITY TABLES
157	TABLE A.3.4 THOUSANDS OF BTU/H (MBH) OF NATURAL GAS PER 100 FEET OF PIPE AT VARIOUS PRESSURE DROPS AND PIPE DIAMETERS A.4 USE OF SIZING EQUATIONS
158	A.5 PIPE AND TUBE DIAMETERS TABLE A.5.1 SCHEDULE 40 STEEL PIPE STANDARD SIZES TABLE A.5.2 COPPER TUBE STANDARD SIZES A.6 USE OF SIZING CHARTS
159	FIGURE A.6(a) CAPACITY OF NATURAL GAS PIPING, LOW PRESSURE (0.60 WC) A.7 EXAMPLES OF PIPING SYSTEM DESIGN AND SIZING FIGURE A.7.1 PIPING PLAN SHOWING A STEEL PIPING SYSTEM
160	FIGURE A.6(b) CAPACITY OF NATURAL GAS PIPING, HIGH PRESSURE (1.5 psi and above)
161	FIGURE A.7.2 PIPING PLAN SHOWING A CSST SYSTEM
162	FIGURE A.7.3 PIPING PLAN SHOWING A COPPER TUBING SYSTEM FIGURE A.7.4 PIPING PLAN SHOWING A MODIFICATION TO EXISTING PIPING SYSTEM
164	APPENDIX B (IFGS) SIZING OF VENTING SYSTEMS SERVING APPLIANCES EQUIPPED WITH DRAFT HOODS, CATEGORY I APPLIANCES AND APPLIANCES LISTED FOR USE WITH TYPE B VENTS EXAMPLES USING SINGLE APPLIANCE VENTING TABLES FIGURE B-1 TYPE B DOUBLE-WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A TYPE B DOUBLE-WALL VENT FIGURE B-2 TYPE B DOUBLE-WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A SINGLE-WALL METAL VENT CONNECTOR
165	FIGURE B-3 VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A MASONRY CHIMNEY OF TYPE B DOUBLE-WALL VENT CONNECTOR FIGURE B-4 VENT SYSTEM SERVING A SINGLE APPLIANCE USING A MASONRY CHIMNEY AND A SINGLE-WALL METAL VENT CONNECTOR FIGURE B-5 ASBESTOS CEMENT TYPE B OR SINGLE-WALL METAL VENT SYSTEM SERVING A SINGLE DRAFT-HOOD-EQUIPPED APPLIANCE FIGURE B-6 VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND TYPE B DOUBLE-WALL VENT CONNECTOR
166	FIGURE B-7 VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND SINGLE-WALL METAL VENT CONNECTORS FIGURE B-8 MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT CONNECTOR FIGURE B-9 MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH SINGLE-WALL METAL VENT CONNECTORS FIGURE B-10 ASBESTOS CEMENT TYPE B OR SINGLE-WALL METAL VENT SYSTEM SERVING TWO OR MORE DRAFT-HOOD-EQUIPPED APPLIANCES
167	FIGURE B-11 USE OF MANIFOLD COMMON VENT CONNECTOR FIGURE B-12 USE OF OFFSET COMMON VENT FIGURE B-13 MULTISTORY GAS VENT DESIGN PROCEDURE FOR EACH SEGMENT OF SYSTEM FIGURE B-14 MULTISTORY VENT SYSTEMS
168	FIGURE B-15 (EXAMPLE 1) SINGLE DRAFT-HOOD-EQUIPPED APPLIANCE FIGURE B-16 (EXAMPLE 2) SINGLE FAN-ASSISTED APPLIANCE
169	EXAMPLES USING COMMON VENTING TABLES FIGURE B-17 (EXAMPLE 4) COMMON VENTING TWO DRAFT HOOD-EQUIPPED APPLIANCES FIGURE B-18 (EXAMPLE 5A) COMMON VENTING A DRAFT HOOD WITH A FAN-ASSISTED FURNACE INTO A TYPE B DOUBLE-WALL COMMON VENT
171	TABLE B-1 MASONRY CHIMNEY LINER DIMENSIONS WITH CIRCULAR EQUIVALENTSa
172	FIGURE B-19
174	APPENDIX C (IFGS) EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT-VENT VENTING SYSTEMS APPENDIX C EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT-VENT VENTING SYSTEMS
176	APPENDIX D (IFGS) RECOMMENDED PROCEDURE FOR SAFETY INSPECTION OF AN EXISTING APPLIANCE INSTALLATION
178	INDEX
182	ICC MEMBERSHIP
183	ICC-ES ICC EVALUATION SERVICES PMG PROGRAM
184	LEARN AND APPLY PLUMBING, MECHANICAL, AND FUEL GAS CODES
185	VALUABLE GUIDES TO CHANGES IN THE 2012 I-CODES®