1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1821 Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSI
2、ON FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service, UL 1821 Third Edition, Dated August 25, 2015 Summary of Topics This new revision to A
3、NSI/UL 1821 includes the following changes in requirements: Transition from Carbon Arc to Xenon Arc Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. The new/revised requirements are substantially in accordance with
4、 Proposal(s) on this subject dated March 17, 2017. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this
5、Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots,
6、lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Stand
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8、n introduced while purchaser is storing an electronic Standard on the purchasers computer system. MAY 5, 2017 UL 1821 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 5, 2017 UL 1821 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT
9、AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL August 25, 2015 (Title Page Reprinted: May 5, 2017) 1 UL 1821 Standard for Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service Prior to the rst edition, the requirements for the products covered by this
10、standard were included in the Outline of Investigation for Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service, Subject 1821. First Edition December, 1994 Second Edition April, 2003 Third Edition August 25, 2015 This ANSI/UL Standard for Safety consists of the Third edition includi
11、ng revisions through May 5, 2017. The most recent designation of ANSI/UL 1821 as an American National Standard (ANSI) occurred on May 5, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title Page. Comments or proposals for revisions on any part of the Stand
12、ard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at https:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way.
13、All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2017 UNDERWRITERS LABORATORIES INC. ANSI/UL 1821-2017UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISS
14、ION FROM UL MAY 5, 2017 UL 1821 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 Components 5 3 Units of Measurement .6 4 Undated References 6 5 Reference Publications 6 6 Terminology 7
15、 7 Glossary .7 8 Use in Environmental Air Handling Spaces .7 CONSTRUCTION 9 General 8 10 Rated Pressure 9 11 Rated Temperature 9 PERFORMANCE 12 General .9 13 Fire Exposure Test .9 13.1 General 9 13.2 Fire test with low owing pressure 10 13.3 Fire test with maximum rated owing pressure .14 13.4 Fire
16、exposure test - unnished basement application .14 13.5 Fire exposure test- vertical piping application 15 14 Pipe Coefficient of Friction Test 15 15 Fitting Equivalent Length Test 16 16 Crush Resistance Test 16 17 Stress-Corrosion Cracking of Stainless Steel Parts Test 17 18 Flexural Test .17 19 Imp
17、act Resistance Test 18 20 Vibration Test 19 21 High Pressure Sprinkler Operation Test .22 22 Kinking Test 22 23 Assembly Test .23 24 Leakage and Hydrostatic Pressure Test .23 25 Pressure Cycling Test .24 26 Temperature Cycling Test .25 27 10-Day Moist Ammonia Air Stress Cracking Test .25 28 Long-Ter
18、m Hydrostatic Pressure Test .26 29 Environmental Exposure Tests .27 29.1 General .27 29.2 Test method .27 29.3 Water immersion exposure 28 29.4 Air oven aging exposure 28 29.5 Light and water exposure .28 30 Marking Permanency Test .29 MANUFACTURING AND PRODUCTION TESTS MAY 5, 2017 UL 1821 3UL COPYR
19、IGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 31 General 31 32 Wall Thickness Monitoring .31 MARKINGS 33 General 31 34 Pipe .31 35 Fittings 32 INSTRUCTIONS 36 Installation and Design Manual .32 APPENDIX A Standards for ComponentsA1 MAY 5, 2017 UL
20、1821 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover thermoplastic pipe and ttings for use in wet pipe sprinkler systems for re protection service. 1.2 Thermoplastic pipe and ttings covered
21、by these requirements are intended for use in sprinkler systems in any of the following types of occupancies: a) Light hazard occupancies as dened in the Standard for Installation of Sprinkler Systems, NFPA 13; b) Residential occupancies as dened in the Standard for Installation of Sprinkler Systems
22、 in One- and Two-Family Dwellings and Manufactured Homes, NFPA 13D; and c) Residential occupancies as dened in the Standard for Installation of Sprinkler Systems in Low-Rise Residential Occupancies, NFPA 13R. 1.3 The pipe and ttings covered by these requirements are intended to be installed in accor
23、dance with the Standard for Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, NFPA 13D; the Standard for Sprinkler Systems in Low-Rise Residential Occupancies, NFPA 13R; or the Standard for Installation of Sprinkler Systems, NFPA 13. 2 Components 2.1 Except as indicated in 2
24、.2, a component of a product covered by this standard shall comply with the requirements for that component. See Appendix A for a list of standards for components referenced in this standard. 2.2 A component is not required to comply with a specic requirement that: a) Involves a feature or character
25、istic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.3 A component shall be used in accordance with its rating established for the intended conditions of use. 2.4 Specic components are incomplete in c
26、onstruction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. AUGUST 25, 2015 UL 1821 5UL COPYRIGHTED MATERIAL NOT AU
27、THORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 4 Undated References 4.1 Any undated reference to a code or standard appear
28、ing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. 5 Reference Publications ASME B1.20.1, Standard for Pipe Threads, General Purpose, Inch ASTM D 396, Standard for Specication for Fuel Oils ASTM D 638, Standard Test Method for T
29、ensile Properties of Plastics ASTM D 1598, Standard Test Method for Time-to-Failure of Plastic Pipe Under Constant Internal Pressure ASTM D 2444, Standard Test Method for Determination of the Impact Resistance of Thermoplastic Pipe and Fittings by Means of a Tup (Falling Weight) ASTM D2837, Standard
30、 Test Method for Obtaining Hydrostatic Design Basis for Thermoplastic Pipe Materials or Pressure Design Basis for Thermoplastic Pipe Products NFPA 13, Standard for the Installation of Sprinkler Systems NFPA 13D, Standard for the Installation of Sprinkler Systems in One- and Two-Family Dwellings and
31、Manufactured Homes NFPA 13R, Standard for the Installation of Sprinkler Systems in Low-Rise Residential Occupancies NFPA 90A, Standard for the Installation of Air Conditioning and Ventilating Systems AUGUST 25, 2015 UL 1821 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBU
32、TION WITHOUT PERMISSION FROM UL 6 Terminology 6.1 The term pipe, piping,o rtting as used in these requirements refers to all thermoplastic pipe or ttings or any part thereof covered by these requirements unless specically noted otherwise. 7 Glossary 7.1 For the purposes of these requirements, the fo
33、llowing denitions apply. 7.2 FLEXIBLE THERMOPLASTIC PIPE A re sprinkler pipe that has sufficient exibility to achieve directional changes, provided turns are not made with the pipe using a bending radius less than the minimum specied in the installation and design manual. 7.3 MULTIPURPOSE PIPING SYS
34、TEM A piping system within residential occupancies (NFPA 13R), dwellings, and manufactured homes (NFPA 13D), intended to serve both domestic and re protection needs. 7.4 NPS (NOMINAL PIPE SIZE) A dimensionless designator for pipe sizes dened in standards including Standard Specication for Chlorinate
35、d Poly (Vinyl Chloride) (CPVC) Plastic Pipe (SDRPR), ASTM F442/F442M and for PEX it is Standard Specication for Crosslinked Polyethylene (PEX) Hot- and Cold-Water Distribution Systems, ASTM F877 used to replace terms such as “Nominal Diameter” and “Nominal Size.” 7.5 RATED PRESSURE The maximum inter
36、nal water pressure to which the piping is intended to be subjected to in the sprinkler system. 7.6 RATED TEMPERATURE The maximum ambient temperature for which the piping is intended to be exposed for the re sprinkler application. 7.7 THERMOPLASTIC A plastic capable of being repeatedly softened by he
37、ating and hardened by cooling through a particular temperature range that is characteristic of the plastic. In the softened state, it is able to be shaped by processes such as molding or extrusion. 8 Use in Environmental Air Handling Spaces 8.1 Thermoplastic pipe intended for use in ceiling cavity e
38、nvironmental air handling spaces shall be tested in accordance with the requirements in the Standard for Fire Test of Plastic Sprinkler Pipe for Visible Flame and Smoke Characteristics, UL 1887, and comply with the applicable requirements of the Standard for the Installation of Air Conditioning and
39、Ventilating Systems, NFPA 90A. AUGUST 25, 2015 UL 1821 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONSTRUCTION 9 General 9.1 Pipe and ttings shall be in sizes 3/4 NPS and larger diameter and free from visible cracks, holes, foreign inc
40、lusions, or other defects. Exception: Pipe and ttings for use in network systems (NFPA 13D) may be in sizes 1/2 NPS and larger diameter and shall be free from visible cracks, holes, foreign inclusions, or other defects. 9.2 Pipe and ttings shall be joined by a means applicable for the type of piping
41、 material such as by solvent cement, fusion, or mechanical means. 9.3 Threaded thermoplastic ttings intended for transition to other piping material shall be threaded in accordance with 9.5. Threaded thermoplastic ttings shall be made in accordance with the American Society for Testing and Materials
42、 (ASTM) requirements applicable to the thermoplastic material being used, as well as comply with the requirements of this Standard. 9.4 Male or female threaded thermoplastic ttings intended for direct connection to a sprinkler, with or without a metal insert, shall have threads that comply with 9.5,
43、 in addition to complying with the requirements of this Standard. 9.5 Threaded thermoplastic ttings intended for transition to other piping material in 9.3 and connection to sprinklers in 9.4 shall be threaded with threads conforming to the following: a) Standard for Pipe Threads, General Purpose, I
44、nch, ASME B1.20.1; b) Standard for Dryseal Pipe Threads (Inch), ASME B1.20.3; or c) Where piping intended for use in installations where sprinkler ttings incorporate pipe threads other than NPT type threads, pipe threads complying with a national pipe thread standard compatible with those ttings sha
45、ll be permitted. 9.6 Pipe and tting materials shall have a minimum ammability classication of HB when tested in accordance with the Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94. AUGUST 25, 2015 UL 1821 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR
46、 FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 10 Rated Pressure 10.1 The pipe and ttings covered by these requirements shall have a rated pressure of 175 psig (1.21 MPa) or higher. Exception: Pipe and ttings for use in NFPA 13D multipurpose piping systems may have a rated pressure
47、 of 130 psig (0.90 MPa) or higher. 11 Rated Temperature 11.1 The pipe and ttings covered by these requirements shall have a rated temperature of 120F (49C) or higher. PERFORMANCE 12 General 12.1 Representative sample pipe and tting assemblies shall be subjected to the tests described in Sections 13
48、30. 13 Fire Exposure Test 13.1 General 13.1.1 When tested as specied in 13.1.2 13.5.1, pipe and tting assemblies: a) Shall not burst, separate, or leak; and b) Shall maintain the sprinkler in the intended operating position. Following the re exposure, the pipe and tting assemblies shall withstand an
49、 internal hydrostatic pressure equal to the maximum rated pressure for 5 minutes without rupture or leaks. Exception: Pipe and ttings intended to be protected by any of the constructions listed in (a) (b) are not required to be subjected to the re exposure test: a) 3/8 inch (9.5 mm) thick or thicker gypsum wallboard; b) A suspended membrane ceiling with lay-in panels or tiles having a weight of not less than 0.35 lb/ft 2 (1.76 kg/m 2 ) when installed with met
