1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULSEPTEMBER 2, 20141UL 1091BOutline of Investigation for System Control Ball Valves for Fire ProtectionServiceIssue Number: 3September 2, 2014Summary of TopicsThis is the third issue of the Outline
2、 of Investigation for System ControlBall Valves for Fire Protection Service, UL 1091B including revised title forSection 21.The effective date for this issue is March 31, 2015. See Issue Number 1 forprevious requirements.COPYRIGHT 2014 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHOR
3、IZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULSEPTEMBER 2, 2014UL 1091B2No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .52 Components 63 Units of Measurement .64 Undated
4、 References 65 Glossary .6CONSTRUCTION6 Sizes 77 Rated Pressure .78 Balls .79 Seats 810 Bodies 811 Valve Stems (Shafts) .912 Brass Materials 913 Actuator Assemblies .914 Electrically Operated Valve Monitor Switches 10PERFORMANCE15 General 1116 Nonmetallic Materials Test .1116.1 Plastic or other nonm
5、etallic parts (excluding rubber, synthetic elastomers, andcoatings) 1116.2 Elastomeric parts (except gaskets) .1217 Leakage Test 1318 Hydrostatic Test 1319 Torque Test 1319.1 All valves 1319.2 Valves with integral indicating and operating arrangements 1320 Operation Tests 1421 Hydraulic Friction Los
6、s Test 1422 10-Day Moist Ammonia Air Stress Cracking Test .1523 Cycling Test 1624 Dezincification Test of Brass Parts 1624.1 General .1624.2 Reagent .1624.3 Samples 1624.4 Method .17MANUFACTURING AND PRODUCTION TESTS25 General 17MARKING26 General 18SEPTEMBER 2, 2014 UL 1091B 3UL COPYRIGHTED MATERIAL
7、 NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINSTRUCTIONS27 Installation Instructions 18SEPTEMBER 2, 2014UL 1091B4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTIONSee Issue Number 1 for previous
8、requirements.1 Scope1 effective March 31, 20151.1 These requirements cover System Control Ball Valves intended for use in piping systems supplyingwater for fire protection service.1.2 Ball valves covered by this outline are intended to shut off water supplies to systems and are notintended for use i
9、n trim and drain applications. Trim and drain valves are covered under the Outline ofInvestigation for Shutoff Valves for Trim and Drain Purposes, UL 258.1.3 The valves covered by these requirements are intended for installation and use in accordance withthe following Standards for:a) Low-, Medium-,
10、 and High-Expansion Foam, NFPA 11;b) Installation of Sprinkler Systems, NFPA 13;c) Installation of Sprinkler Systems in One- and Two-Family Dwellings, and ManufacturedHomes, NFPA 13D;d) Installation of Sprinkler Systems in Low-Rise Residential Occupancies, NFPA 13R;e) Installation of Standpipe and H
11、ose Systems, NFPA 14f) Water Spray Fixed Systems for Fire Protection, NFPA 15;g) Foam-Water Sprinkler and Foam-Water Spray Systems, NFPA 16;h) Installation of Stationary Pumps for Fire Protection, NFPA 20, and;i) Water Tanks for Private Fire Protection, NFPA 22.SEPTEMBER 2, 2014 UL 1091B 5UL COPYRIG
12、HTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2 Components2 effective March 31, 20152.1 Except as indicated in 2.2, a component of a product covered by this outline shall comply with therequirements for that component.2.2 A component is not required t
13、o comply with a specific requirement that:a) Involves a feature or characteristic not required in the application of the component in theproduct covered by this outline, orb) Is superseded by a requirement in this outline.2.3 A component shall be used in accordance with its recognized rating establi
14、shed for the intendedconditions of use.2.4 Specific 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 notexceeding specified limits and shall be used only under
15、 those specific conditions.3 Units of Measurement3 effective March 31, 20153.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.4 Undated References4 effective March 31, 20154.1 Any undated reference to a code or standard appearin
16、g in the requirements of this outline shall beinterpreted as referring to the latest edition of that code or standard.5 Glossary5 effective March 31, 20155.1 For the purpose of this outline, the following definitions apply.5.2 NPS (NOMINAL PIPE SIZE) A dimensionless designator for pipe sizes defined
17、 in standardsincluding the Standard Specification for Pipe, Steel, Black, and Hot-Dipped, Zinc-Coated, Welded andSeamless, ASTM A 53/A 53M, Standard Specification for Electric-Resistance-Welded Steel Pipe, ASTMA 135/A 135M and Standard Specification for Black and Hot-Dipped Zinc-Coated (Galvanized)
18、Weldedand Seamless Steel Pipe for Fire Protection Use, ASTM A 795/A 795M. Used to replace terms such asNominal Diameter and Nominal Size.SEPTEMBER 2, 2014UL 1091B6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONSTRUCTION6 Sizes6 effective M
19、arch 31, 20156.1 Valves shall be constructed for use with standard pipe of 3/4 NPS or larger.6.2 Valve sizes refer to the nominal pipe size, NPS, of the waterway through the inlet and outletconnections and to the nominal pipe size for which the connections are intended.7 Rated Pressure7 effective Ma
20、rch 31, 20157.1 A valve shall be constructed for a minimum rated pressure of 175 psig (1206 kPa).8 Balls8 effective March 31, 20158.1 A valve ball shall be metallic and shall comply with one of the following:a) The ball shall be cast or fabricated from materials having corrosion resistance at leaste
21、quivalent to brass, bronze, or ni-resist.b) The ball shall be fabricated from ductile iron having a nickel coating in accordance with theStandard Specification for Electroplated Engineering Nickel Coatings, ASTM B689 with at least0.003 inch (0.08 mm) thickness, or other metal or coating (including o
22、ther nickel coatingprocesses with less thickness) that has at least equivalent corrosion resistance.c) The ball shall be fabricated from stainless steel material, Grade 316 or better, corrosionresistance, or brass, or bronze with chrome plating.8.2 The ball shall provide, when the valve is fully ope
23、n, a waterway diameter equal to or greater than theinside diameter of a mating pipe.Exception: A valve providing a waterway having a diameter less than the diameter of the mating pipe ispermitted, if the valve incorporating such a waterway complies with the requirements of the Friction LossTest for
24、Valves Having Reduced Waterways, Section 21.SEPTEMBER 2, 2014 UL 1091B 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL9 Seats9 effective March 31, 20159.1 The seating surfaces of a valve shall be constructed to resist leakage. See Leakage Te
25、st, Section 17.9.2 A nonmetallic seating surface shall comply with the requirements specified in Nonmetallic MaterialsTest, Section 16.10 Bodies10 effective March 31, 201510.1 The body of a valve shall be made of a metallic material having corrosion resistance at leastequivalent to cast iron.10.2 A
26、casting shall be smooth and free from scale, lumps, cracks, blisters, sand holes, and defects ofany nature that could make it unfit for use. A casting shall not be plugged or filled, but shall be permittedto be impregnated to remove porosity.10.3 The dimensions of all flanges, flange pipe joints, an
27、d threaded body openings shall conform to thefollowing standards, as applicable, or to other national standards that apply where the valve is intendedto be installed. The flange class shall be compatible with the rated pressure of the valve.a) Pipe Threads, General Purpose (Inch), ANSI/ASME B1.20.1.
28、b) Dryseal Pipe Threads (Inch), ANSI/ASME B1.20.3.c) Gray Iron Pipe Flanges and Flanged Fittings, Classes 25, 125, and 250, ANSI/ASME B16.1(Class 125 or higher).d) Ductile Iron Pipe Flanges and Flanged Fittings, Class 150 and 300, ANSI/ASME B 16.42.e) Steel Pipe Flanges for Waterworks Service, Sizes
29、 4 In. Through 144 In. (100 mm Through3,600 mm), ANSI/AWWA C207, for valves having a maximum rated working pressure of 175psig (1206 kPa); Pipe Flanges and Flanged Fittings, NPS 1/2 Through NPS 24 Metric/InchStandard, ANSI/ASME B16.5, for valves having a maximum rated working pressure greaterthan 17
30、5 psig (1206 kPa.10.4 Valve bodies with grooved ends shall conform to Grooved and Shouldered Joints, ANSI/AWWAC606.SEPTEMBER 2, 2014UL 1091B8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL11 Valve Stems (Shafts)11 effective March 31, 201511.1
31、 The stem of a valve shall be constructed of AISI Series 300 or 400 Stainless steel, brass, bronze,or material with equivalent strength and corrosion resistance.11.2 The stem shall be permitted to be constructed of carbon steel or equivalent material provided:a) The stem is not exposed to an interna
32、l water source;b) The valve is installed in above ground applications only; andc) No binding, rubbing, or friction occurs between the shaft and body as a result of shaftcorrosion.11.3 The stem of a valve shall be capable of transmitting the maximum operating torque withoutexceeding a torsional shear
33、 stress of:a) 40 percent of the yield strength, andb) 18 percent of the ultimate tensile strength of the shaft material.See Operation Tests, Section 20.12 Brass Materials12 effective March 31, 201512.1 Parts made of brass containing more than 15 percent zinc shall resist cracking. See 10-Day MoistAm
34、monia Air Stress Cracking Test, Section 22.12.2 Parts where brass materials contact water under service conditions, not protected with a corrosionresistant coating, and containing more than 15 percent zinc shall resist dezincification. See DezincificationTest of Brass Parts Test, Section 24.13 Actua
35、tor Assemblies13 effective March 31, 201513.1 A valve shall be equipped with a worm gear or traveling nut actuator.13.2 An actuator shall be equipped with an indicating arrangement that will positively indicate when thevalve is in the open and closed position. The indicator shall be visible from two
36、 positions 180 degreesapart, at a distance to 50 feet (15.2 m). The valve and the actuator shall be constructed so that the valvecannot be assembled with the indicator showing the ball orientation incorrectly.13.3 A valve incorporating an integral actuator/indicating arrangement as specified in 13.2
37、 shall beconstructed such that it can be locked in the open position after installation.SEPTEMBER 2, 2014 UL 1091B 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL13.4 The actuator of a valve complying with 13.2 shall be:a) Sealed to prevent
38、contamination of the actuator operating mechanism;b) Constructed to open and close the valve at the rated pressure with a maximum input of 80lbf-ft. (108 Nm) applied to the outside of the handwheel or the middle of the gripping portion ofthe crank.14 Electrically Operated Valve Monitor Switches14 ef
39、fective March 31, 201514.1 An electrically operated switch assembly, intended to indicate a valves position, shall comply withthe applicable requirements in the Standard for Alarm Accessories for Automatic Water-Supply ControlValves for Fire Protection Service, UL 753. A switch assembly intended for
40、 outdoor use shall also complywith the applicable requirements in the Standard for Manual Signaling Boxes for Fire Alarm Systems, UL38.14.2 A switch shall provide a signal within the first two revolutions of a valves handwheel in the directionof closing the valve.14.3 A valve position monitor switch
41、 assembly shall be constructed to provide:a) Duplicate terminals or leads for each incoming and each outgoing alarm initiating circuitconnection; orb) Equivalent means to achieve electrical supervision.A common terminal may be used for connection of both incoming and outgoing wires, provided that th
42、econstruction of the terminal does not permit an un-insulated section of a single conductor to be loopedaround the terminal and serve as two separate connections, thereby precluding supervision of theconnection in the event that the wire becomes dislodged from under the terminal. A notched clampingp
43、late under a single securing screw, where separate conductors of an initiating circuit are intended to beinserted in each notch, is acceptable, but this arrangement shall be supplemented by additional markingin the wiring area or on the installation wiring diagram specifying the intended connections
44、 to theterminals.SEPTEMBER 2, 2014UL 1091B10UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPERFORMANCE15 General15 effective March 31, 201515.1 Representative samples of valves are to be subjected to the tests described in these requirements.
45、Samples of parts constructed of nonmetallic material, such as seals, are required for physical andchemical tests.16 Nonmetallic Materials Test16 effective March 31, 201516.1 Plastic or other nonmetallic parts (excluding rubber, synthetic elastomers, and coatings)16.1.1 Air oven aging16.1.1.1 After a
46、ir-oven aging for 180 days at 121 1C (250 2F), or at the temperature determined in16.1.1.2, as appropriate, there shall be no warping, creeping, cracking, or other evidence of deteriorationof a plastic component which may impair the intended operation of the valve. Additionally, a valve withaged pla
47、stic (or other like material) components shall comply with the applicable requirements in theLeakage Test, Section 17, the Hydrostatic Test, Section 18, and the Operation Tests Section 20.16.1.1.2 If a material cannot withstand the temperature specified in 16.1.1.1 without excessive softening,distor
48、tion, or deterioration, an air-oven aging test at a lower temperature for a longer period of time shallbe applied. If a material is capable of withstanding a higher temperature than that specified in 16.1.1.1without softening, distortion, or deterioration, an air-oven aging test at a higher temperat
49、ure for a shorterperiod of time, but not less than 30 days, shall be permitted. The duration of exposure is to be calculatedfrom the following equation:D = (790000)e0.0693tin which:D is the test duration in dayst is the test temperature in C16.1.1.3 A complete valve assembly including plastic (or other like) parts, and sample plastic (or otherlike) components to be aged, are to be supported in a full draft, circulating air oven that has beenpreheated at full draft to 121 1C (250 2F). Elastomeric seats or O rings may be included or excludedat the manufactur
