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 ServiceUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NO
2、T 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 reect the reaffirmation o
3、f the ANSI approval of the Standard. No technical changes have been made to the document. 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 a
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9、e requirements in this Standard 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 fu
10、ture effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. JANUARY 29, 2013 UL 260 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 29, 2013 UL 260 tr2 No Text on This PageUL COPYRIGHT
11、ED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 17, 2004 (Title Page Reprinted: January 29, 2013) 1 UL 260 Standard for Dry Pipe and Deluge Valves for Fire-Protection Service The rst through third editions were titled Standard for Dry Pipe, Deluge
12、, and Pre-Action Valves for Fire Protection Service. First Edition June, 1957 Second Edition March, 1970 Third Edition April, 1972 Fourth Edition May, 1979 Fifth Edition November, 1988 Sixth Edition May, 1994 Seventh Edition March 17, 2004 This ANSI/UL Standard for Safety consists of the Seventh Edi
13、tion including revisions through January 29, 2013. The most recent designation of ANSI/UL 260 as a Reaffirmed American National Standard (ANS) occurred on January 29, 2013. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Com
14、ments 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 Safety are copyrighted by UL. Neither a printed nor elec
15、tronic 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 2013 UNDERWRITERS LABORATORIES INC. ANSI/UL 260-2008 (R2013)UL COPYRIGHTED MATERIAL NOT AUTH
16、ORIZED 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 COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTR
17、ODUCTION 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 pipe valves 8 8.2 Latched-clapper type dry pipe valves .9 8.3 Deluge valves 9 9 Bodies and Covers 9 10 Valve
18、 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 Gags 14 17 Priming Water 14 18 Intermediate Chamber Automatic Drain Valves .14 19 Priming Water 14 PERFORMANCE
19、 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 Resilient Seat Material 16 24 Installation Assembly Test .19 25 Servicing Test for Valves Without Handhole Openings
20、 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 tripping devices 21 26.6 Normal 21 26.7 Reseating test .22 26.8 Wet pilot sprinkler line limitations tests 23 SEPTE
21、MBER 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 Deformation Test .24 27.1 Valves with mechanical latching mechanisms 24 27.2 Valves without mechanical latching
22、 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 33 General 27 INSTRUCTIONS 34 Installation Instructions and Trim Drawings .28 APPENDIX A METHOD OF CALCULATIO
23、N 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 clearances B2 B1.5 Body clearances .B4 B1.6 Clapper clearances B5 OCTOBER 26, 2007 DRY PIPE AND DELUGE VALVES F
24、OR 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 cover valve equipment intended for installation in piping systems to supply water automatically to dry pipe, del
25、uge, 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 combination of these types. 1.3 The valves covered by these requirements are intended for installation and use in acc
26、ordance 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 Installation of Standpipe and Hose Systems, NFPA 14. d) Standard for Water Spray Fixed Systems for Fire Protectio
27、n, 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 valves, such as water-motor-driven alarm gongs, electric circuit closers, pressure-operated switches, pressure ga
28、uges, 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 Water-Supply Control Valves for Fire Protection Service, UL 753, and Standard for Indicating Pressure Gauges for F
29、ire 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. 2.3 A component is not required to comply with a specic requirement that: a) Involves a feature or characteristic
30、 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 with its rating established for the intended conditions of use. JULY 6, 2007 DRY PIPE AND DELUGE VALVES FOR FI
31、RE-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 construction features or restricted in performance capabilities. Such components are intended for use only under limited
32、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 the requirement. Values in parentheses are explanatory or approximate information. 4 Undated References 4.1 An
33、y 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 the purpose of this standard the following denitions apply. 5.2 ALARM DEVICE A mechanical or electrical device
34、 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 chamber and vent the chamber to atmosphere when the valve is in the set position, and limits water ow from the
35、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 water to ow through the valve when operated. 5.5 DELUGE VALVE An automatic water-supply control valve that is inte
36、nded 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 these methods. A deluge valve is intended to admit water into: a) A piping system having open sprinklers (deluge
37、 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, expressed as gauge pressures measured at the trip point. 5.7 DIFFERENTIAL DRY PIPE VALVE A dry pipe valve having an
38、 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 DELUGE VALVES FOR FIRE-PROTECTION SERVICE - UL 260 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC
39、TION 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 pressure and ow until the air pressure in the system is released by actuation of an automatic sprinkler, manua
40、l 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 clapper seating surfaces and that is at atmospheric pressure when the valve is in the set position. 5.10 LATCH
41、, 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 A valve in which a mechanism acts to produce a force which is multiplied through a series of levers, links, or
42、 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 at which water begins to emit from the intermediate chamber drain during the tripping sequence of a valve. 5.1
43、3 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 to supply water pressure. Such a valve has a differential of 1.5:1 or lower. 5.14 PILOT SPRINKLER An automatic
44、 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 operate. 5.15 PRIMING CONNECTION A port provided in the valve body to allow water to enter above the clapper when
45、 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 for operation. 5.16 revised July 6, 2007 5.16.1 SYSTEM PRESSURE The static water pressure at the main outlet of
46、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. 5.16.2 added July 6, 2007 5.17 TRIP POINT That system air pressure and service water pressure at which the valve c
47、lapper 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 system or by manual means. 5.19 VALVE GAG Any supplementary means which prevents normal operation. JULY 6, 2007 D
48、RY 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 COLUMNING A condition occurring in a dry, deluge, or preaction re suppression system where water accumulates downstrea
49、m 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 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
