1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNOVEMBER 17, 20171UL 1389Outline of Investigation for Plant Extraction UnitsIssue Number: 1November 17, 2017Summary of TopicsThis first issue of the Outline of Investigation for Plant Extraction
2、Units,UL 1389, covers pneumatically operated plant extraction units, with amaximum capacity of 60 gallons (227 L), used for production of plant oilsas indicated in the instruction manual provided with each unit.ULs Outlines of Investigation are copyrighted by UL LLC. Neither a printed norelectronic
3、copy of an Outline of Investigation should be altered in any way. All ofULs Outlines of Investigation and all copyrights, ownerships, and rights regardingthose Outlines of Investigation shall remain the sole and exclusive property of ULLLC.COPYRIGHT 2017 UL LLCUL COPYRIGHTED MATERIAL NOT AUTHORIZED
4、FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNOVEMBER 17, 2017UL 13892No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .52 Units of Measurement .53 Undated References 54 Compo
5、nents 5CONSTRUCTION5 General 66 Containers .67 Pipings and Fittings .68 Gauges 79 Power-Operated Pumps and Bypass Valves .710 Meters 811 Valves 811.1 General 811.2 Safety relief valves 811.3 Excess flow/backflow/check valves .1011.4 Hydrostatic relief valves .1111.5 Positive shutoff valves 1112 Elec
6、tric Heater .1213 Lighting 1214 Regulators .1215 Tube Fittings .1216 Flexible Metallic Hose .12PERFORMANCE17 Deformation Test .1218 Leakage Test Pump .1319 Endurance Test 1419.1 Pump .1419.2 Pressure vessel 1420 Leakage Test System .1421 Hydrostatic Strength Test 1522 Mechanical Strength Tests for S
7、light Glass 1523 Overflow Test 1624 Temperature Test .1625 Temperature Test With Dust Blanket 1826 Tests for Synthetic Rubber Parts .1926.1 General .1926.2 Volume change test 1926.3 Weight loss test 2027 Low Temperature Test 21MANUFACTURING AND PRODUCTION TESTS28 General 21NOVEMBER 17, 2017 UL 1389
8、3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULMARKINGS29 Details .21INSTRUCTIONS30 Manual 23NOVEMBER 17, 2017UL 13894UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scop
9、e1.1 These requirements cover pneumatically operated plant extraction units, with a maximum capacity of60 gallons (227 L), used for production of plant oils as indicated in the instruction manual provided witheach unit. The extraction system uses butane or LP-Gas to extract the plant oils.1.2 These
10、products are intended for installation in Class 1 Division 1 location.2 Units of Measurement2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.3 Undated References3.1 Any undated reference to a code or standard appearing in the
11、requirements of this outline shall beinterpreted as referring to the latest edition of that code or standard.4 Components4.1 Except as indicated in 4.2, a component of a product covered by this standard shall comply with therequirements for that component.4.2 A component is not required to comply wi
12、th 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.4.3 A component shall be used in accordance with its rating established for the intended
13、conditions ofuse.4.4 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 those specific condi
14、tions.NOVEMBER 17, 2017 UL 1389 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONSTRUCTION5 General5.1 Plant extraction units include the gas container, integral supports, and the necessary corecomponents that allow the system to function a
15、s intended and in accordance with the installationinstructions. Plant extraction units fabricated of individual core components shall comply with therequirements of this outline.5.2 All plant extraction units shall have a maximum pressure rating of 350 psig (2.4 MPa). These ratingsapply as indicated
16、 to all parts of the system unless otherwise noted in this outline.6 Containers6.1 A container shall be constructed, tested, inspected and marked to indicate compliance with the ASMEBoiler and Pressure Vessel Code, Section VIII, Division 1, with the exception of UG 125 136 containerswhich are not al
17、lowed. The minimum design pressure of the container shall be 250 psig (1.7 MPa).7 Pipings and Fittings7.1 Piping shall comply with one of the following:a) Welded and Seamless Wrought Steel Pipe, ASME B36.10M;b) Standard Specification for Pipe, Steel, Black and Hot Dipped, Zinc Coated, Welded andSeam
18、less, ASTM A53;c) Standard Specification for Seamless Carbon Steel Pipe for High Temperature Service,ASTM A106;d) Standard Specification for Seamless Red Brass Pipe, Standard Sizes, ASTM B43; ore) Standard Specification for Seamless Copper Pipe, Standard Sizes, ASTM B42.7.2 Tubing shall comply with
19、one of the following:a) Standard Specification for Seamless Brass Tube, ASTM B135;b) Standard Specification for Seamless Copper Water Tube, ASTM B88; orc) Standard Specification for Seamless Copper Tube for Air Conditioning and RefrigerationField Service, ASTM B280.7.3 Fittings shall be fabricated o
20、f steel, brass, copper, malleable iron, or ductile iron. Pipe fittings of castiron shall not be used. Brazing materials shall have a melting point of 538C (1000F) minimum.NOVEMBER 17, 2017UL 13896UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM U
21、L7.4 Pipe and tube fittings shall have a minimum pressure rating of 350 psig (2.4 MPa) and shall be sizedto provide the required rate of flow.7.5 Piping and tubing shall be secured and protected against damage. Piping shall be run as directly aspossible within the system, using the least amount of f
22、ittings as would be practical. Piping in contact withthe earth, a support member, or other corrosion causing substance shall be protected against corrosionor the piping shall be of corrosion resistant material.7.6 Exposed joints shall be flanged, threaded or made with full strength welds. Tubing joi
23、nts shall beflared or brazed.7.7 Pipe joint compound shall be used on all threaded connections. The compound shall be suitable forLP-Gas.7.8 Piping shall be capable of compensating for vibration of use, thermal expansion of liquids, and thelike. The use of flexible connections is considered to compl
24、y with this requirement.7.9 Return bends or restrictive fittings shall not be used in discharge piping.8 Gauges8.1 Pressure Gauges for 1,000 psig (6.9 MPa) and higher shall comply with the requirements in theStandard for Gauges, Indicating Pressure, for Compressed Gas Service, UL 404.8.2 Gauges for
25、pressure under 1,000 psig (6.9 MPa) shall comply with the requirements in the Standardfor Compressed Gas Regulator Accessories, UL 252A.8.3 Pressure gauges shall be attached directly to an opening in the container, or it shall be connected toa valve or other fitting that is attached directly to an o
26、pening in the container.9 Power-Operated Pumps and Bypass Valves9.1 Pumps and bypass valves shall comply with the requirements in the Standard for Power-OperatedPumps and Bypass Valves for Anhydrous Ammonia, LP-Gas, and Propylene, UL 51.9.2 A pump shall be provided with a bypass valve and the bypass
27、 valve shall have a flow capacity equalto or greater than the pump in the system, when operated at the differential pressures involved. Bypassvalves shall discharge into the pump inlet or back into the container.9.3 A pump shall be rated for a maximum outlet pressure of 350 psig (2.4 MPa). Bypass va
28、lves shall havea service pressure rating of 400 psig (2.8 MPa) minimum.9.4 Pumps shall be installed so that piping connections and the pump housing are not subject to strainfrom connected piping runs. Flexible connectors are a means to comply with this requirement.9.5 Control for the pump shall be p
29、rovided at the pump or at a minimum as part of the dispensing devicethat the pump feeds.NOVEMBER 17, 2017 UL 1389 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL10 Meters10.1 Meters shall comply with the requirements in the Standard for Mete
30、rs for Flammable andCombustible Liquids and LP-Gas, UL 25.10.2 Meters shall be rated for a minimum service pressure of 350 psig (2.4 MPa).10.3 Meters shall be installed so that piping connections and the meter housing are not subject to strainfrom connected piping runs. Flexible connectors are a mea
31、ns to comply with this requirement.11 Valves11.1 General11.1.1 Valves installed prior to shutoff valves shall be installed within the container or at the pointimmediately outside where the line enters or leaves the container. If installed outside the container, strainshall not cause breakage between
32、 the container and the valve.11.2 Safety relief valves11.2.1 The container shall be provided with one or more internal spring-loaded safety relief valves tosafeguard against excessive pressure. The container system shall be provided with additional safety reliefvalves as needed to reduce the risk of
33、 rupture of any part of the system. The valves shall comply with therequirements in the Standard for Safety Relief Valves for Anhydrous Ammonia and LP-Gas, UL 132.11.2.2 The start-of-discharge setting of the valves required by 11.2.1 shall be rated as shown in (a) or(b):a) If the valves are located
34、prior to the pump, the rating shall be 250 psig to 275 psig (1.7 MPato 1.9 MPa).b) If the valves are located after the pump, the rating shall be 350 psig to 385 psig (2.4 MPa to2.6 MPa).11.2.3 The flow capacity of a safety relief valve shall not be less than that specified in Table 11.1, basedon the
35、 total outside surface area of the container in square feet (m2). Discharge piping or tubing providedwith the safety relief valve shall have a flow capacity equal or greater than that of the valve, or shall beshown to allow the required flow capacity.NOVEMBER 17, 2017UL 13898UL COPYRIGHTED MATERIAL
36、NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 11.1Safety relief valve flow capacityMinimum required safety-relief valve discharge rate for container assemblies in cubic feet per minute of air at 120percent of the maximum permitted set pressureSurface areasqua
37、re feeta(Squaremeters)Flow rate,cubic feetper minute,airb,c(Cubicmeters persecond)Surface area,square feeta(Squaremeters)Flow rate,cubic feetper minute,airb,c(Cubicmeters persecond)20 or less (1.8) 626 (0.3) 170 (15.8) 3620 (1.7)25 (2.3) 751 (0.3) 175 (16.2) 3700 (1.7)30 (2.8) 872 (0.4) 180 (16.7) 3
38、790 (1.8)35 (3.2) 990 (0.5) 185 (17.2) 3880 (1.8)40 (3.7) 1100 (0.5) 190 (17.6) 3960 (1.9)45 (4.2) 1220 (0.6) 195 (18.1) 4050 (1.9)50 (4.6) 1330 (0.6) 200 (18.6) 4130 (1.9)55 (5.1) 1430 (0.7) 210 (19.5) 4300 (2.0)60 (5.6) 1540 (0.7) 220 (20.4) 4470 (2.1)65 (6.0) 1640 (0.8) 230 (21.4) 4630 (2.2)70 (6
39、.5) 1750 (0.8) 240 (22.3) 4800 (2.3)75 (7.0) 1850 (0.9) 250 (23.2) 4960 (2.3)80 (7.4) 1950 (0.9) 260 (24.1) 5130 (2.4)85 (7.9) 2050 (1.0) 270 (25.1) 5290 (2.5)90 (8.4) 2150 (1.0) 280 (26.0) 5450 (2.6)95 (8.8) 2240 (1.0) 290 (26.9) 5610 (2.6)100 (9.3) 2340 (1.1) 300 (27.9) 5760 (2.7)105 (9.7) 2440 (1
40、.1) 310 (28.8) 5920 (2.8)110 (10.2) 2530 (1.2) 320 (29.7) 6080 (2.9)115 (10.7) 2630 (1.2) 330 (30.6) 6230 (2.9)120 (11.1) 2720 (1.3) 340 (31.6) 6390 (3.0)125 (11.6) 2810 (1.3) 350 (32.5) 6540 (3.1)130 (12.1) 2900 (1.4) 360 (33.4) 6690 (3.1)135 (12.5) 2990 (1.4) 370 (34.4) 6840 (3.2)140 (13.0) 3080 (
41、1.4) 380 (35.3) 7000 (3.3)145 (13.5) 3170 (1.5) 390 (36.2) 7150 (3.4)150 (13.9) 3260 (1.5) 400 (37.2) 7300 (3.4)155 (14.4) 3350 (1.6) 450 (41.9) 8040 (3.8)160 (14.8) 3440 (1.6) 500 (46.4) 8760 (4.1)165 (15.3) 3530 (1.7) 500 (46.4) 8760 (4.1)a1. Surface area-total outside surface area of container in
42、 square feet, can be calculated as follows:a) Cylindrical container with hemispheric heads. Area = Overall length outside diameter 3.1416.b) Cylindrical container with other than hemispheric heads. Area = (Overall length + 0.3 outside diameter) outsidediameter 3.1416.c) Spherical container. Area = O
43、utside diameter squared 3.1416.2. Square feet (ft2) 0.0929 = square meters (m2).b1.Low rate cubic feet per minute of air = cubic feet of air required at standard conditions 15.6C (60F) and pressure of 14.7pounds per square inch absolute.2. Cubic feet per minute (ft3/minute) 0.000472 = cubic meters p
44、er second (m3/s).cThe rate of safety-relief valve discharge may be interpolated for intermediate values of surface area.NOVEMBER 17, 2017 UL 1389 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL11.2.4 A safety relief valve shall have direct c
45、ommunication with the vapor space of the container. Noshutoff valve shall be installed between the container and the safety relief valve.11.2.5 Safety relief valves shall not be provided with a shutoff valve at the outlet. All discharge piping ortubing shall be sized to comply with flow capacity req
46、uirements in 11.2.3, with no pressure rating requiredon the open ended discharge piping or tubing.11.2.6 An internal-spring type safety relief valve is not required to be protected against physical damageif it is located in the top of a horizontal cylindrical container at least 12 inches (305 mm) fr
47、om the end ofthe shell, and if the top of the valve is not more than 3 inches (72 mm) above the container. If both ofthese conditions are not met, then the valve shall be protected against physical damage by locating itwithin the housing, or by a steel collar surrounding the valve and welded to the
48、container. The means ofprotection shall allow for inspection of the valve.11.2.7 The discharge from a safety relief valve shall be vented vertically upward and unobstructed to theopen air to prevent impingement of escaping gas on the container or flame impingement if ignited productis escaping from
49、the release opening. If a valve is located within the housing, it shall be piped, orotherwise vented directly to the outside. Vent pipes or extensions shall terminate above the top of thehousing.11.2.8 A safety relief valve vent opening in the top of a housing of a container system shall have adiameter not less than the outside diameter of the discharge end of the valve or vent pipe, and theopening shall be centered with relation to the valve.11.2.9 A loose fitting rain cap designed to prevent the entrance of rain, snow, or sleet, and itsdisplacement and possible loss,
