1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 260 Dry Pipe and Deluge Valves for Fire-Protection Service STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COP
2、YRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Dry Pipe and Deluge Valves for Fire-Protection Service, UL 260 Seventh Edition, Dated March 17, 2004 Summary of Topics This revision of ANSI/UL 260 is being issued to updat
3、e the title page to reect reaffirmation of ANSI approval. 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
4、 note indicating the date of publication or the date on which the changed requirement becomes effective. The new requirements are substantially in accordance with Proposal(s) on this subject dated March 24, 2017. All rights reserved. No part of this publication may be reproduced, stored in a retriev
5、al system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchant
6、ability 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, 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 authori
7、zed 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 Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hol
8、d UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. MAY 18, 2017 UL 260 tr1UL COPYRIGHTED MA
9、TERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MAY 18, 2017 UL 260 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 17, 2004 (Title Page Reprinted: May 18, 2017) 1 UL 26
10、0 Standard for Dry Pipe and Deluge Valves for Fire-Protection Service The rst through third editions were titled Standard for Dry Pipe, Deluge, and Pre-Action Valves for Fire Protection Service. First Edition June, 1957 Second Edition March, 1970 Third Edition April, 1972 Fourth Edition May, 1979 Fi
11、fth Edition November, 1988 Sixth Edition May, 1994 Seventh Edition March 17, 2004 This ANSI/UL Standard for Safety consists of the Seventh Edition including revisions through May 18, 2017. The most recent designation of ANSI/UL 260 as a Reaffirmed American National Standard (ANS) occurred on May 18,
12、 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 Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Deve
13、lopment 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. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property o
14、f UL. COPYRIGHT 2017 UNDERWRITERS LABORATORIES INC. ANSI/UL 260-2008 (R2017)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SEPTEMBER 23, 2008 DRY PIPE AND DELUGE VALVES FOR FIRE-PROTECTION SERVICE - UL 260 2 No Text on This PageUL COPYRIGHT
15、ED 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 Glossary .6 CONSTRUCTION 6 Sizes 8 7 Rated Pressure .8 8 Operating Mechanisms 8 8.1 Differential type dry
16、 pipe valves .8 8.2 Latched-clapper type dry pipe valves 9 8.3 Deluge valves 9 9 Bodies and Covers .9 10 Valve Mechanisms 10A 10.1 General .10A 10.2 Clapper supports 11 11 Anti-Reseat Latches .12 12 Clapper Stops .12 13 Clapper Rings and Seat Rings 12 14 Clearances .13 15 Valve Settings 13 16 Valve
17、Gags .14 17 Priming Water .14 18 Intermediate Chamber Automatic Drain Valves 14 19 Priming Water .14 PERFORMANCE 20 General 14 21 Metallic Materials Test .15 22 Nonmetallic Materials Tests .15 22.1 General .15 22.2 Plastic parts 15 22.3 Elastomeric parts (except gaskets) 16 23 Adhesion Test for Resi
18、lient Seat Material 16 24 Installation Assembly Test 19 25 Servicing Test for Valves Without Handhole Openings .19 26 Operation Tests .20 26.1 General valve types 20 26.2 Differential type dry pipe valves 20A 26.3 Latched-clapper type dry pipe valves 21 26.4 Alarm devices 21 26.5 Supplementary tripp
19、ing devices .21 26.6 Normal .21 26.7 Reseating test 22 26.8 Wet pilot sprinkler line limitations tests .23 SEPTEMBER 23, 2008 DRY PIPE AND DELUGE VALVES FOR FIRE-PROTECTION SERVICE - UL 260 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 27
20、 Deformation Test .24 27.1 Valves with mechanical latching mechanisms .24 27.2 Valves without mechanical latching mechanisms 24 28 Hydraulic Friction Loss Test 25 29 Body Leakage Test 25 30 Strength of Body Test 25 31 Automatic Drain Valves 26 MANUFACTURING AND PRODUCTION TESTS 32 General 26 MARKING
21、 33 General 27 INSTRUCTIONS 34 Installation Instructions and Trim Drawings .28 APPENDIX A METHOD OF CALCULATION FOR WET PILOT LINE LENGTH APPENDIX B CLEARANCES MEASUREMENT REFERENCE B1 General .B1 B1.1 Bushing dimensions .B1 B1.2 Radial clearances B1 B1.3 Diametrical clearances B1 B1.4 Total axial c
22、learances .B2 B1.5 Body clearances B4 B1.6 Clapper clearances .B5 OCTOBER 26, 2007 DRY PIPE AND DELUGE VALVES FOR FIRE-PROTECTION SERVICE - UL 260 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements c
23、over valve equipment intended for installation in piping systems to supply water automatically to dry pipe, deluge, and preaction sprinkler systems for re-protection service. 1.2 Valves covered by these requirements may be a differential type, latched-clapper type, low-differential type, or a combin
24、ation of these types. 1.3 The valves covered by these requirements are intended for installation and use in accordance with the following standards: a) Standard for Low-, Medium-, and High-Expansion Foam, NFPA 11. b) Standard for the Installation of Sprinkler Systems, NFPA 13. c) Standard for the In
25、stallation of Standpipe and Hose Systems, NFPA 14. d) Standard for Water Spray Fixed Systems for Fire Protection, NFPA 15 e) Standard for the Installation of Foam-Water Sprinkler and Foam-Water Spray Systems, NFPA 16 1.3 revised July 6, 2007 2 Components 2.1 Auxiliary components or attachments to va
26、lves, such as water-motor-driven alarm gongs, electric circuit closers, pressure-operated switches, pressure gauges, and the like, shall comply with the requirements for such devices or products and also with respect to the particular application. See Standard for Alarm Accessories for Automatic Wat
27、er-Supply Control Valves for Fire Protection Service, UL 753, and Standard for Indicating Pressure Gauges for Fire Protection Service, UL 393. Also see 2.2 2.5. 2.2 Except as indicated in 2.3, a component of a product covered by this standard shall comply with the requirements for that component. 2.
28、3 A component is not required to comply with a specic requirement that: 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. 2.4 A component shall be used in accordance
29、 with its rating established for the intended conditions of use. JULY 6, 2007 DRY PIPE AND DELUGE VALVES FOR FIRE-PROTECTION SERVICE - UL 260 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.5 Specic components are incomplete in constructi
30、on 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. 3 Units of Measurement 3.1 Values stated without parentheses are
31、 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 requirements of this standard shall be interpreted as referring to the latest edition of that code or standard. 5 Glossary 5.1 For
32、 the purpose of this standard the following denitions apply. 5.2 ALARM DEVICE A mechanical or electrical device to sound an alarm on operation of the valve. 5.3 AUTOMATIC DRAIN VALVE A valve connected in the open position to the intermediate chamber of a dry pipe valve so as to drain water from the
33、chamber and vent the chamber to atmosphere when the valve is in the set position, and limits water ow from the chamber after the valve is tripped. 5.3 revised July 6, 2007 5.4 CLAPPER That portion of a valve mechanism on which air pressure or water pressure, or both, act and which opens to allow wat
34、er to ow through the valve when operated. 5.5 DELUGE VALVE An automatic water-supply control valve that is intended to be operated by: a) Mechanical, electrical, hydraulic, pneumatic, or a thermal re detection system installed in the same area as sprinklers; b) Manual means; or c) A combination of t
35、hese methods. A deluge valve is intended to admit water into: a) A piping system having open sprinklers (deluge systems); or b) A piping system with closed sprinklers (preaction systems). 5.5 revised July 6, 2007 5.6 DIFFERENTIAL The ratio of system water supply pressure to system air pressure, expr
36、essed as gauge pressures measured at the trip point. 5.7 DIFFERENTIAL DRY PIPE VALVE A dry pipe valve having an air clapper of large diameter relative to the diameter of the water clapper with the two separated by an intermediate chamber maintained at atmospheric pressure. JULY 6, 2007 DRY PIPE AND
37、DELUGE VALVES FOR FIRE-PROTECTION SERVICE - UL 260 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.8 DRY PIPE VALVE An automatic sprinkler water-supply control valve constructed so that air pressure in a system of piping will retain water
38、 pressure and ow until the air pressure in the system is released by actuation of an automatic sprinkler, manual release, or other similar devices. 5.8 revised July 6, 2007 5.9 INTERMEDIATE CHAMBER That portion of a differential or low-differential dry pipe valve which separates the air and/or water
39、 clapper seating surfaces and that is at atmospheric pressure when the valve is in the set position. 5.10 LATCH, ANTI-RESEAT A latch mechanism provided in a differential dry pipe valve designed to prevent the clapper from returning to its set position after operation. 5.11 LATCHED-CLAPPER TYPE VALVE
40、 A valve in which a mechanism acts to produce a force which is multiplied through a series of levers, links, or latches to maintain the water clapper in the closed position. Such a valve is sometimes referred to as a mechanical type. 5.12 LEAK POINT The system air pressure and service water pressure
41、 at which water begins to emit from the intermediate chamber drain during the tripping sequence of a valve. 5.13 LOW-DIFFERENTIAL DRY PIPE VALVE A dry pipe valve having a single clapper member whose effective area exposed to system air pressure is only slightly larger than the effective area exposed
42、 to supply water pressure. Such a valve has a differential of 1.5:1 or lower. 5.14 PILOT SPRINKLER An automatic sprinkler connected to an air or water line, which in turn is connected to a deluge, preaction, or other water-supply control valve; when actuated, the sprinkler will cause the valve to op
43、erate. 5.15 PRIMING CONNECTION A port provided in the valve body to allow water to enter above the clapper when the valve is in the set position. 5.16 SET POSITION The position of a valve clapper and other operating parts with system pressure and system air pressure applied when the valve is ready f
44、or operation. 5.16 revised July 6, 2007 5.16.1 SYSTEM PRESSURE The static water pressure at the main outlet of a valve when the valve is in the set condition. 5.16.1 added July 6, 2007 5.16.2 SYSTEM AIR PRESSURE The static air pressure in the system piping when the valve is in the set condition. 5.1
45、6.2 added July 6, 2007 5.17 TRIP POINT That system air pressure and service water pressure at which the valve clapper begins to move away from the set position to allow water to ow into the system. 5.18 TRIPPING DEVICE A device for operating a dry pipe or deluge valve, initiated by a re detection sy
46、stem or by manual means. 5.19 VALVE GAG Any supplementary means which prevents normal operation. JULY 6, 2007 DRY PIPE AND DELUGE VALVES FOR FIRE-PROTECTION SERVICE - UL 260 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.20 WATER COLUMNI
47、NG A condition occurring in a dry, deluge, or preaction re suppression system where water accumulates downstream of the clapper of a system control valve, preventing the control valve from operating. 5.21 WATER-MOTOR OPERATED ALARM A mechanical alarm device (operated by energy or water ow) attached
48、to a dry pipe, preaction, or deluge valve and supplied with water from the intermediate chamber or discharge side of the valve, to sound an alarm on operation of the valve. 5.22 WET PILOT SPRINKLER LINE A hydraulic detection and actuation piping system equipped with heat responsive devices, commonly
49、 automatic sprinklers which when subjected to heat from a re, operate to release water pressure from the piping system causing the automatic operation of a deluge valve. 5.22 added July 6, 2007 CONSTRUCTION 6 Sizes 6.1 Valves covered by these requirements include sizes11 2inches (25.4 305 mm), inclusive. 6.2 Valve sizes refer to the nominal diameter of the waterway through the inlet and outlet connections and to the pipe size for which the connections are in
