1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 193 UL Standard for Safety for Alarm Valves for Fire-Protection Service,UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHT
2、ED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Alarm Valves for Fire-Protection Service, UL 193 Tenth Edition, Dated January 12, 2004 Summary of Topics This revision to ANSI/UL 193 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
4、re followed by an effective date note indicating 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 9, 2012. All rights reserved. No part of this publication
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7、his 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 Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safe
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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10、ture effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice.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 11, 2013 UL 193 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 11, 2013 UL 193 tr2 No Text on This PageUL COPYRIGHT
11、ED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 12, 2004 (Title Page Reprinted: January 11, 2013) 1 UL 193 Standard for Alarm Valves for Fire-Protection Service First Edition March, 1937 Second Edition June, 1952 Third Edition November, 1967 Fou
12、rth Edition November, 1972 Fifth Edition December, 1973 Sixth Edition April, 1979 Seventh Edition July, 1980 Eighth Edition January, 1988 Ninth Edition March, 1993 Tenth Edition January 12, 2004 This ANSI/UL Standard for Safety consists of the Tenth Edition including revisions through January 11, 20
13、13. The most recent designation of ANSI/UL 193 as a Reaffirmed American National Standard (ANS) occurred on January 11, 2013. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Comments or proposals for revisions on any part of
14、 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 electronic copy of a Standard should be altered in
15、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 193-2008 (R2013)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION
16、 WITHOUT PERMISSION FROM UL JANUARY 11, 2013 UL 193 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .7 2 Units of Measurement .7 3 Undated References 7 4 Components 7 5 Glossary .8 ASSEMBLY
17、 6 General 8 7 Sizes 9 8 Working Pressures 9 9 Positions .9 10 Bodies and Covers .9 11 Valve Mechanisms 11 11.1 General .11 11.2 Clapper supports .11 12 Clapper Stops 12 13 Clapper Rings and Seat Rings .12 14 Nonmetallic Materials .13 15 Clearances .13 16 Auxiliary Checks 14 17 Retarding Chambers 14
18、 18 Valve Gags 15 PERFORMANCE 19 General 15 20 Metallic Materials Tests 15 21 Nonmetallic Materials Tests 16 21.1 General .16 21.2 Plastic parts .16 21.3 Elastomeric parts (except gaskets) .17 22 Adhesion Test for Resilient Seat Material 17 23 Installation Assembly Test .20 24 Servicing Test for Val
19、ves Without Handhole Openings 20 25 Positiveness of Response and Transmission Test 21 26 Hydraulic Friction Loss Test 21 27 Leakage Test 22 28 Strength of Body Test .22 29 Operational Tests .22 29.1 Sensitiveness 22 29.2 Retarding factor 25 MANUFACTURING AND PRODUCTION TESTS 30 General 27 JANUARY 11
20、, 2013 UL 193 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARKING 31 General 27 INSTALLATION INSTRUCTIONS 32 Installation Instructions and Trim Drawings .28 SEPTEMBER 12, 2008 ALARM VALVES FOR FIRE-PROTECTION SERVICE - UL 193 4UL COPYRI
21、GHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 12, 2004 ALARM VALVES FOR FIRE-PROTECTION SERVICE - UL 193 5 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUAR
22、Y 11, 2013 ALARM VALVES FOR FIRE-PROTECTION SERVICE - UL 193 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover alarm valves for use in automatic wet-pipe sprinkler systems for re-protection se
23、rvice. Alarm valves covered by these requirements are of either the variable- or constant-pressure type and are of the swing-check pattern. Ordinarily, variable-pressure alarm valves are acceptable for constant-pressure service without alteration; however, in some designs, that part of the device ha
24、ving to do with the delaying of alarms may be omitted. 1.2 Alarm valves covered by these requirements include the sizes11 2inches, inclusive. 1.3 Alarm valves covered by these requirements are intended for installation and use in accordance with the Standard for the Installation of Sprinkler Systems
25、, NFPA 13. 2 Units of Measurement 2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 3 Undated References 3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as r
26、eferring to the latest edition of that code or standard. 4 Components 4.1 Except as indicated in 4.2, a component of a product covered by this standard shall comply with the requirements for that component. 4.2 A component is not required to comply with a specic requirement that: a) Involves a featu
27、re 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. 4.3 A component shall be used in accordance with its rating established for the intended conditions of use. 4.4 Specic components are
28、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. JANUARY 12, 2004 ALARM VALVES FOR FIRE-P
29、ROTECTION SERVICE - UL 193 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5 Glossary 5.1 For the purpose of this standard, the following denitions apply. 5.2 READY CONDITION The condition existing when: a) An alarm valve is installed in a
30、piping system that has been lled with water from an active water supply having a stable pressure; and b) There is no water ow from any outlet on the system downstream from the alarm valve. 5.3 RETARDING FACTOR The time in seconds that elapses while any specied rate-of-ow is being discharged from the
31、 system between the rst passage of water through the alarm port of the valve and the completion of the action which is required of the mechanism to actuate the alarm devices. It does not include the time required to withdraw excess pressure from the riser above the valve, nor the delay incident to t
32、ransmission of water through the piping from the alarm valve to water-motor gongs or other alarm apparatus that may be installed at some distance from the valve. 5.4 SENSITIVENESS The minimum rate-of-ow from a system outlet, expressed in gallons per minute (gpm) (L/min) that will open the alarm valv
33、e, as indicated by continuous operation of both electrical and mechanical alarms. See 5.5. 5.5 SERVICE PRESSURE The static pressure at the inlet to an alarm valve when the valve is in the ready condition. 5.6 SOLID FLOW SYSTEM A system in which no air is present in the sprinkler piping. 5.7 WASTE OF
34、 WATER The discharge of any water from the alarm port of an alarm valve that is in the ready condition. ASSEMBLY 6 General 6.1 Auxiliary components or attachments to alarm valves, such as water-motor-driven alarm gongs, pressure-operated switches, pressure gauges, and the like, are judged under the
35、requirements for such devices or products and also with respect to their particular application. See the Standard for Alarm Accessories for Automatic Water-Supply Control Valves for Fire-Protection Service, UL 753, and the Standard for Indicating Pressure Gauges for Fire Protection Service, UL 393.
36、JANUARY 12, 2004 ALARM VALVES FOR FIRE-PROTECTION SERVICE - UL 193 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 7 Sizes 7.1 Valve sizes refer to the nominal diameter of the waterway through the inlet and outlet connections and to the nom
37、inal pipe size for which the connections are intended. The diameter of the waterway at the water seat ring of a valve may be reduced to less than that of the waterway at the inlet and outlet connections. 8 Working Pressures 8.1 An alarm valve shall be constructed for a minimum rated working pressure
38、 of 175 psig (1200 kPa). 9 Positions 9.1 An alarm valve may be constructed to operate when installed in only one specic position (horizontal only or vertical only) or it may be constructed to operate in both of these positions. See 31.2(e), for marking requirements. 10 Bodies and Covers 10.1 A body
39、and cover shall be made of a material having corrosion resistance equivalent to cast iron. If nonmetallic materials, for example, plastics, are used, they are to be subjected to a design study to evaluate their resistance to external re exposure and thermal shock. 10.2 A casting shall not be plugged
40、 or lled but may be impregnated to remove porosity. 10.3 The dimensions of all anges, ange pipe joints, and threaded body openings shall conform to the following standards, as applicable. The ange class shall be at least equal to the rated working pressure of the valve. a) Pipe Threads, General Purp
41、ose (Inch), ANSI/ASME B1.20.1. b) Dryseal Pipe Threads (Inch), ANSI B1.20.3. c) Cast Iron Pipe Flanges and Flanged Fittings ANSI B16.1 (Class 125 or higher). d) Steel Pipe Flanges for Waterworks Service, 4 144 inches, ANSI/AWWA C207, for valves having a maximum rated working pressure of 175 psig (12
42、00 kPa); Pipe Flanges and Flanged Fittings, Steel Nickel Alloy and Other Special Alloys, ANSI/ASME B16.5, for valves having a maximum working pressure greater than 175 psig. 10.4 Provision shall be made in a valve body for connection of all external ttings and attachments specied by the Standard for
43、 the Installation of Sprinkler Systems, NFPA 13. 10.5 The point of connection of the alarm piping shall be such that pressure sufficient to operate the alarm will be available at any velocity of ow through the valve of12 0feet per second (0.3 6.1 m/s), at service pressures of 20 psig (138 kPa) to th
44、e maximum rated working pressure. See 5.5. JANUARY 12, 2004 ALARM VALVES FOR FIRE-PROTECTION SERVICE - UL 193 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 10.6 A tapped opening in a valve body for a retarding chamber connection shall be
45、not less than 1/2 inch pipe size, and an opening used exclusively for a pressure gauge shall be not less than 1/4 inch pipe size. 10.7 A tapped opening in a valve body for main drain connection shall be at least 3/4 inch pipe size for up to 2 inch valves, at least 1-1/4 inch pipe size for a 2-1/2 to
46、 3 inch valve, and 2 inch pipe size for 4 inch and larger valves. 10.8 Tapped openings provided for main drain piping shall be so located as to assist in carrying away sediment or foreign material likely to collect at the valve seat and to drain water from the system piping when the valve is install
47、ed in any intended position. 10.9 A body handhole opening shall be provided and shall be sufficiently large: a) To permit access to all working parts; and b) To allow the removal of the clapper assembly. It shall be so located that, when the valve is installed in the intended position, the opening i
48、s on the side or on the top. Exception: A valve need not be provided with a body handhole opening, provided that: a) The valve is constructed to permit the clapper and all other internal parts to be removed and replaced; b) A means is provided to allow removal and reinstallation of the valve, or ser
49、viceable portion of the valve, without disassembly of the sprinkler system piping; and c) The means for valve or part removal and reinstallation is integral with the valve. 10.10 If a body handhole opening is provided, a cover plate shall be attached to the body of a valve using bolts and nuts, or bolts alone, or studs and nuts, with the removable parts having external drive surfaces, such as a square or hexagonal head. 10.11 In a 6 inch size or larger valve, no stud or bo
