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 ServiceUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIG
2、HTED 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 edition to ANSI/UL 1821 includes
3、the following changes in requirements: Additional Test Requirements for Unnished Basement Fire Tests that reect testing applications already used in the Installation and Design Manual Additional Test Requirement for the Leakage and Hydrostatic Pressure Test The new/revised requirements are substanti
4、ally in accordance with Proposal(s) on this subject dated October 31, 2014 and May 15, 2015. 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
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6、similar damages, including loss of prots, 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
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8、fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. AUGUST 25, 2015 UL 1821 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 25, 2015 UL 1821 tr
9、2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL August 25, 2015 1 UL 1821 Standard for Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service Prior to the rst edition, the requirements for the products co
10、vered by this 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 e
11、dition. The most recent designation of UL 1821 as an American National Standard (ANSI) occurred on August 25, 2015. 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 Standard may be submitted to UL a
12、t any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all
13、copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 1821-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 25, 2015 U
14、L 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 7 Glossary .7 8 Use in E
15、nvironmental 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 exposure test - unnished
16、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 Impact Resistance Test 18 20
17、 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-Term Hydrostatic Pressure Te
18、st .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 AUGUST 25, 2015 UL 1821 3UL COPYRIGHTED MATERIAL NOT A
19、UTHORIZED 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 AUGUST 25, 2015 UL 1821 4UL COPYRIGH
20、TED 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 by these requirem
21、ents 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 in One- and Two-
22、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 accordance with the St
23、andard 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 2.2, a component o
24、f 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 characteristic not require
25、d 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 construction featu
26、res 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 AUTHORIZED FOR FURT
27、HER 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 appearing in the requir
28、ements 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 Tensile Properties
29、 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 Test Method for
30、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 Manufactured Home
31、s 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 DISTRIBUTION WITHOUT PERM
32、ISSION 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 following denitio
33、ns 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 SYSTEM A piping sy
34、stem 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 Chlorinated Poly (Vinyl C
35、hloride) (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 internal water press
36、ure 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 heating and harde
37、ned 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 environmental ai
38、r 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 Ventilating Sys
39、tems, 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 inclusions, or oth
40、er 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 material such
41、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 (ASTM) require
42、ments 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, in addition to
43、 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, Inch, ASME B1.20
44、.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 shall be permitted
45、. 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 FURTHER REPROD
46、UCTION 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 of 130 psig (0
47、.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 30. 13 Fire Exp
48、osure 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 internal hydro
49、static 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 metallic suppo
