1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 193 Alarm Valves for Fire-Protection Service STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATER
2、IAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Alarm Valves for Fire-Protection Service, UL 193 Eleventh Edition, Dated February 26, 2016 Summary of Topics This new edition of ANSI/UL 193 was issued to incorporate revisions to the Hy
3、drostatic Test Requirements in the Strength of Body Test and Bolt Strength, 10.13 and 28.1; and updates to the Pressure Gauge requirements in 26.2 and 29.1.8. The revised requirements are substantially in accordance with Proposal(s) on this subject dated November 6, 2015. All rights reserved. No par
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8、rs computer system. FEBRUARY 26, 2016 UL 193 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 26, 2016 UL 193 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSI
9、ON FROM UL FEBRUARY 26, 2016 1 UL 193 Standard for Alarm Valves for Fire-Protection Service First Edition March, 1937 Second Edition June, 1952 Third Edition November, 1967 Fourth Edition November, 1972 Fifth Edition December, 1973 Sixth Edition April, 1979 Seventh Edition July, 1980 Eighth Edition
10、January, 1988 Ninth Edition March, 1993 Tenth Edition January, 2004 Eleventh Edition February 26, 2016 This ANSI/UL Standard for Safety consists of the Eleventh Edition. The most recent designation of ANSI/UL 193 as an American National Standard (ANSI) occurred on February 26, 2016. ANSI approval fo
11、r 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 the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards
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13、y of UL. COPYRIGHT 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 193-2016UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FEBRUARY 26, 2016 ALARM VALVES FOR FIRE-PROTECTION SERVICE - UL 193 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTH
14、ORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 Units of Measurement .5 3 Undated References 5 4 Components 5 5 Glossary .6 ASSEMBLY 6 General 6 7 Sizes 7 8 Working Pressures 7 9 Positions .7 10 Bodies and Covers .7 11 Valve Mechanisms .9
15、 11.1 General 9 11.2 Clapper supports 9 12 Clapper Stops 10 13 Clapper Rings and Seat Rings .10 14 Nonmetallic Materials .11 15 Clearances .11 16 Auxiliary Checks 12 17 Retarding Chambers 12 18 Valve Gags 13 PERFORMANCE 19 General 13 20 Metallic Materials Tests 13 21 Nonmetallic Materials Tests 14 2
16、1.1 General .14 21.2 Plastic parts .14 21.3 Elastomeric parts (except gaskets) .15 22 Adhesion Test for Resilient Seat Material 15 23 Installation Assembly Test .18 24 Servicing Test for Valves Without Handhole Openings 18 25 Positiveness of Response and Transmission Test 19 26 Hydraulic Friction Lo
17、ss Test 19 27 Leakage Test 20 28 Strength of Body Test .20 29 Operational Tests .20 29.1 Sensitiveness 20 29.2 Retarding factor 23 MANUFACTURING AND PRODUCTION TESTS 30 General 25 MARKING FEBRUARY 26, 2016 ALARM VALVES FOR FIRE-PROTECTION SERVICE - UL 193 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR
18、FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 31 General 25 INSTALLATION INSTRUCTIONS 32 Installation Instructions and Trim Drawings .26 FEBRUARY 26, 2016 ALARM VALVES FOR FIRE-PROTECTION SERVICE - UL 193 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUT
19、ION 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 service. Alarm valves covered by these requirements are of either the variable- or constant-pressure type and are of the swing-check pattern
20、. Ordinarily, variable-pressure alarm valves are acceptable for constant-pressure service without alteration; however, in some designs, that part of the device having to do with the delaying of alarms may be omitted. 1.2 Alarm valves covered by these requirements include the sizes11 2inches, inclusi
21、ve. 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, NFPA 13. 2 Units of Measurement 2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or appr
22、oximate 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 referring 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
23、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 feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a re
24、quirement 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 incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited con
25、ditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. FEBRUARY 26, 2016 ALARM VALVES FOR FIRE-PROTECTION SERVICE - UL 193 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5
26、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 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 ou
27、tlet 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 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 me
28、chanism 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 transmission of water through the piping from the alarm valve to water-motor gongs or other alarm apparatus that may be installed at some
29、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 valve, as indicated by continuous operation of both electrical and mechanical alarms. See 5.5. 5.5 SERVICE PRESSURE The static pressure at th
30、e 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 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
31、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 requirements for such devices or products and also with respect to their particular application. See the Standard for Alarm Accessories f
32、or Automatic Water-Supply Control Valves for Fire-Protection Service, UL 753, and the Standard for Indicating Pressure Gauges for Fire-Protection Service, UL 393. FEBRUARY 26, 2016 ALARM VALVES FOR FIRE-PROTECTION SERVICE - UL 193 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR D
33、ISTRIBUTION 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 nominal 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
34、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 of 175 psig (1200 kPa). 9 Positions 9.1 An alarm valve may be constructed to operate when installed in only one specic position (horizo
35、ntal 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 and cover shall be made of a material having corrosion resistance equivalent to cast iron. If nonmetallic materials, for example, plasti
36、cs, 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 or lled but may be impregnated to remove porosity. 10.3 The dimensions of all anges, ange pipe joints, and threaded body openings shall
37、 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 Purpose (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 (
38、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 (1200 kPa); Pipe Flanges and Flanged Fittings, Steel Nickel Alloy and Other Special Alloys, ANSI/ASME B16.5, for valves having a maximum wo
39、rking 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 the Installation of Sprinkler Systems, NFPA 13. 10.5 The point of connection of the alarm piping shall be such that pressure sufficient
40、 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 the maximum rated working pressure. See 5.5. FEBRUARY 26, 2016 ALARM VALVES FOR FIRE-PROTECTION SERVICE - UL 193 7UL COPYRIGHTED MATERIAL
41、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 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
42、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 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 locat
43、ed 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 installed in any intended position. 10.9 A body handhole opening shall be provided and shall be sufficiently large: a) To permit access to all
44、 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 is 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 const
45、ructed 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 serviceable portion of the valve, without disassembly of the sprinkler system piping; and c) The means for valve or part removal and reins
46、tallation 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
47、6 inch size or larger valve, no stud or bolt smaller than 1/2 inch (12.7 mm) shall be used to assemble castings subject to full water pressure. 10.12 Bolts, nuts, and studs employed for the bolting of pressure-holding castings shall comply with the applicable requirements in the Standard Specication
48、 for Carbon Steel Bolts and Studs, 60,000 PSI Tensile Strength, ASTM A307, and in the Standard Specication for Carbon and Alloy Steel Nuts, ASTM A563. Bolts shall be Grade A or Grade B, as specied in ASTM A307. 10.13 The load on any bolt, exclusive of the force required to compress the gasket, shall
49、 not exceed the minimum tensile strength specied in Table 2 of the Standard Specication for Carbon Steel Bolts and Studs, 60,000 PSI Tensile Strength, ASTM A307, when the valve is pressurized to four times the rated working pressure. The area of the application of pressure is to be calculated as follows: a) If a full-face gasket is used, the area of force application is that extending out to a line dened by the inner edge of the bolts. b) If an O ring seal or ring gasket
