1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1626 Residential Sprinklers for Fire- Protection ServiceUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT
2、AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Residential Sprinklers for Fire-Protection Service, UL 1626 Fourth Edition, Dated March 14, 2008 Summary of Topics These revisions to ANSI/UL 1626 are being issued to include changes in the foll
3、owing requirements: Polymeric Sprinklers Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating
4、the date of publication or the date on which the changed requirement becomes effective. The revised requirements are substantially in accordance with Proposal(s) on this subject dated November 18, 2011 and March 9, 2012. All rights reserved. No part of this publication may be reproduced, stored in a
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9、d are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised and that have a future effective date are locate
10、d after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. APRIL 12, 2012 UL 1626 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 12, 2012 UL 1626 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F
11、URTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 14, 2008 (Title Page Reprinted: April 12, 2012) 1 UL 1626 Standard for Residential Sprinklers for Fire-Protection Service First Edition April, 1988 Second Edition September, 1994 Third Edition July, 2001 Fourth Edition March 14, 20
12、08 This ANSI/UL Standard for Safety consists of the Fourth Edition including revisions through April 12, 2012. The most recent designation of ANSI/UL 1626 as an American National Standard (ANSI) occurred on April 11, 2012. The ANSI approval for this standard does not include the Cover Page, Transmit
13、tal Pages, Title Page or effective date information. Comments or proposals for revisions on any part of the Standard 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 http:/. ULs Standards for
14、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 copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2012 UNDERWRITERS LABORATORIES INC.
15、ANSI/UL 1626-2012UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 12, 2012 RESIDENTIAL SPRINKLERS FOR FIRE-PROTECTION SERVICE - UL 1626 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTIO
16、N WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .6 2 Components 6 3 Units of Measurement .7 4 Undated References 7 5 Glossary .7 5.1 General .7 5.2 Residential sprinkler types .8 CONSTRUCTION 6 General 8 7 Inlet Threads .9 8 Temperature Ratings 9 9 Pressure Rating .10 10 Nominal “K” Facto
17、rs .10 11 Protective Covers .10 11A Polymeric Sprinklers .10 PERFORMANCE GENERAL 12 Details .10A 13 Samples .11 PHYSICAL STRENGTH AND LEAKAGE TESTS 14 Load on Heat Responsive Element Test .11 15 Strength of Heat Responsive Element Test 11 15.1 Fusible-alloy types 11 15.2 Glass-bulb types .12 16 Glas
18、s-bulb thermal shock test 12 17 Strength of Frame Test 12 18 Impact Resistance Test 13 19 Impact Test for Protective Covers .15 20 Rough Usage Test 17 21 Flow Endurance Test 17 22 Leakage Test 18 23 Hydrostatic Strength Test 18 24 Dry Sprinkler Air Tightness Test .18 25 30-Day Leakage Test .20 26 Wa
19、ter Hammer Test 21 27 Vacuum Test .22 APRIL 12, 2012 RESIDENTIAL SPRINKLERS FOR FIRE-PROTECTION SERVICE - UL 1626 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OPERATION TESTS 28 Operating Temperature (Bath) Test .22 29 Sensitivity Tests
20、23 29.1 Oven heat test .23 29.2 Room heat test 26 30 Operation Lodgement Test .30 EXPOSURE AND CORROSION TESTS 31 High Temperature Test 32 32 Elastomeric Parts Test 33 33 Vibration Test 33 34 Freezing Test 34 35 Corrosion Exposure Tests .34 35.1 General .34 35.2 5 percent salt spray 35 35.3 Moist hy
21、drogen sulde air mixture 35 35.4 Moist carbon dioxide-sulfur dioxide air mixture .35 36 Moist Air Test 35 37 Exposure Tests On Sprinklers Incorporating Polymeric Gaskets 36 37.1 General .36 37.2 Corrosive exposures 36 37.3 Temperature cycling exposure .36 37.4 Hydrocarbon exposure followed by moist
22、air exposure 36 37.5 Hydrocarbon exposure followed by water immersion exposure .37 37.6 Exposure to antifreeze solutions .37 38 Dry-Type Sprinkler Deposit Loading Test .37 39 Dezincication Test of Brass Parts 38 39.1 General .38 39.2 Reagent .39 39.3 Test Pieces 39 39.4 Method .39 40 Stress-Corrosio
23、n Cracking of Brass Sprinkler Parts Test .40 41 Stress-Corrosion Cracking of Stainless Steel Sprinkler Parts Test 40 WATER FLOW AND DISTRIBUTION TESTS 42 Calibration Test .41 43 Water Distribution Test Horizontal Surface .44 43.1 Acceptance criteria .44 43.2 Test method .44 44 Water Distribution Tes
24、t Vertical Surface .48 44.1 Acceptance criteria .48 44.2 Test method .48 FIRE TESTS 45 Water Impingement Test .51 46 Fire Test .51 46.1 General .51 46.2 Test arrangement 56 46.3 Test method .60 MARCH 14, 2008 RESIDENTIAL SPRINKLERS FOR FIRE-PROTECTION SERVICE - UL 1626 4UL COPYRIGHTED MATERIAL NOT A
25、UTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 46.4 Supplementary test .60A TESTS UNIQUE TO POLYMERIC SPRINKLERS 46A Polymeric Sprinkler Exposure Tests 60A 46A.1 General 60A 46A.2 Test samples and post exposure testing .60A 46A.3 Water immersion exposure .60B 46A.4 Air
26、 oven aging exposure 60B 46A.5 Light and water exposure .60C 46B Long-Term Hydrostatic Pressure Test for Polymeric Sprinklers 60C 46C Temperature Cycling Exposure for Polymeric Sprinklers 60D 46D Impact Test for Polymeric Sprinklers .60D MANUFACTURING AND PRODUCTION TESTS 47 General 61 48 Production
27、 Leakage Test 61 49 Glass Bulb Integrity Test .61 MARKING 50 General 62 INSTALLATION INSTRUCTIONS 51 Design Parameters and Installation Instructions 63 APPENDIX A APRIL 12, 2012 RESIDENTIAL SPRINKLERS FOR FIRE-PROTECTION SERVICE - UL 1626 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCT
28、ION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover residential sprinklers intended for installation on sprinkler systems for re-protection service. Requirements for the installation and use of residential sprinklers are included in the Standards for the
29、Installation of Sprinkler Systems, NFPA 13, and Installation of Sprinkler Systems in One- and Two-Family Dwellings and Mobile Homes, NFPA 13D, and Residential Occupancies up to and Including Four Stories in Height Sprinkler Systems, NFPA 13R. 1.2 The requirements in this standard are not intended to
30、 restrict the application of representative re and other tests for special sprinklers, as referenced in Standard for the Installation of Sprinkler Systems, NFPA 13, that are intended to provide protection for specic re hazards. 1.3 A product that contains features, characteristics, components, mater
31、ials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of re or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally ant
32、icipated by the intent of this standard. A product whose features, characteristics, components, materials, or systems conict with specic requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the meth
33、ods employed for development, revision, and implementation of this standard. 2 Components 2.1 Except as indicated in 2.2, a component of a product covered by this standard shall comply with the requirements for that component. 2.2 A component is not required to comply with a specic requirement that:
34、 a) Involves a feature or characteristic 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 Sp
35、ecic components are incomplete in construction 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. MARCH 14, 2008 RESID
36、ENTIAL SPRINKLERS FOR FIRE-PROTECTION SERVICE - UL 1626 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED 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 i
37、nformation. 4 Undated References 4.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. 5 Glossary 5.1 General 5.1.1 For the purpose of this standard the following denitions appl
38、y. 5.1.2 DISCHARGE COEFFICIENT K Coefficient of discharge in the formula, Q=K p where: Q is the ow in gallons per minute (L/s x 15.85), and p is the pressure in psig (MPa x 145). 5.1.3 HEAT RESPONSIVE ELEMENT That portion of a sprinkler that breaks, melts, or otherwise functions to initiate the auto
39、matic operation of the sprinkler when exposed to sufficient heat. 5.1.4 HEPTANE Commercial grade heptane having the following characteristics: a) Minimum Initial Boiling Point of 190F (88C); b) Maximum Dry Point of 212F (100C); and c) Specic Gravity (60F/60F) (15.6C/15.6C) of 0.68 0.73. 5.1.5 OPERAT
40、ING TEMPERATURE The temperature at which the heat responsive element of a sprinkler operates when subjected to a 1F (0.5C) per minute temperature rise while immersed in a liquid bath. 5.1.6 ORIFICE The opening that controls the amount of water discharged from a sprinkler at a given pressure. 5.1.7 R
41、ESIDENTIAL SPRINKLER A sprinkler intended to be installed in residential occupancies and that opens automatically by operation of a heat-responsive releasing mechanism that maintains the discharge orice closed. Upon operating at a specied temperature, a discharge of water is distributed in a specic
42、pattern and quantity over a designated area. MARCH 14, 2008 RESIDENTIAL SPRINKLERS FOR FIRE-PROTECTION SERVICE - UL 1626 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.2 Residential sprinkler types 5.2.1 FLUSH CEILING SPRINKLER A sprinkl
43、er in which all or part of the body, including the shank thread, is mounted above the lower plane of the ceiling. 5.2.2 COATED, PAINTED, OR PLATED SPRINKLER A sprinkler that has factory applied coatings, paint, or platings for corrosion protection or decorative purposes. 5.2.3 CONCEALED CEILING SPRI
44、NKLER A sprinkler assembly having a cover plate. 5.2.4 DRY-TYPE SPRINKLER A sprinkler secured in an extension nipple that has a seal at the inlet end to prevent water from entering the nipple until the sprinkler operates. These sprinklers may consist of a pendent, sidewall, ceiling or other types. 5
45、.2.5 PENDENT SPRINKLER A sprinkler intended to be installed so that its deector is located below the orice and the water ows downward through the orice. 5.2.6 RECESSED SPRINKLER A sprinkler assembly in which all or part of the sprinkler body or frame, other than the shank thread, is mounted within a
46、 recessed housing. 5.2.7 SIDEWALL SPRINKLER A sprinkler intended for installation on or near the wall and near the ceiling, and designed to discharge most of the water away from the nearby wall with a small portion of the discharge directed at the wall behind the sprinkler. 5.2.8 UPRIGHT SPRINKLER A
47、 sprinkler intended to be installed so that its deector is located above the orice and the water ows upward through the orice. CONSTRUCTION 6 General 6.1 A residential sprinkler shall be constructed to effect closure of its water seat for extended periods of time without leakage and to open as inten
48、ded and release all parts as specied in this standard. The closure of the water seat shall not be achieved by the use of a dynamic O-ring or similar seal (an O-ring or similar seal that moves during operation or is in contact with a component that moves during operation). 6.2 For dry-type pendent an
49、d sidewall residential sprinklers, the connection of the extension nipple to the seal assembly at the inlet shall be airtight. See Dry Sprinkler Air Tightness Test, Section 24. 6.3 A sprinkler shall be chemically or mechanically staked to maintain the manufacturers assembly load. The assembly load shall be incapable of being changed by the use of common hand tools without causing visible damage to the sprinkler. 6.4 Stampings shall show no cracking or
