UL 1389-2019 pdf download

UL 1389-2019 pdf download.Plant Oil Extraction Equipment for Installation and Use in Ordinary (Unclassified) Locations and Hazardous (Classified) Locations.
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 referring to the latest edition of that code or standard. 4 Glossary 4.1 ASTM IRM 903/IRM 903 – A high-swelling petroleum base oil described in ASTM D471, Standard Test Method for Rubber Property-Effect of Liquids. 4.2 AUTHORITY HAVING JURISDICTION – The governmental body responsible for the enforcement of any part of this Standard or the official or agency designated by that body to exercise such a function. 4.3 CLOSED LOOP SYSTEM – A system in which the solvent is being used without evaporation or exposure to the atmosphere. 4.4 HOSE ASSEMBLY – A segment of flexible, usually nonmetallic, tubing and having a threaded fitting at each end for the purpose of connecting two components 4.5 LIQUEFIED PETROLEUM GAS (LP-GAS OR LPG) – Any material having a vapor pressure not exceeding that allowed for commercial propane, as defined in Standard Specification for Liquefied Petroleum (LP) Gases, ASTM D1835, that is composed predominantly of the following hydrocarbons, either by themselves (excluding propylene) or as mixtures: propane, propylene, butane (normal butane or isobutane) and butylenes.
8 Pressure Vessels 8.1 Pressure vessels over 6 in (152 mm) inside diameter with a design pressure greater than 15 psig (103 kPa) shall be constructed, tested, inspected and marked to indicate compliance with the following, as applicable: a) For CE Code-based installations: CSA B51; and b) For NEC-based installations: ASME/BPVC, Section VIII, Division 1, Division 2, or Division 3. 8.2 Pressure vessels shall also be designed for a working pressure in compliance with the applicable performance requirements of this standard. 8.3 Pressure vessels bearing the ASME Code “U”, “U2”, or “U3” symbol complying with 8.1 are considered acceptable without tests. 8.4 Pressure vessels bearing the ASME Code “UM” symbol are to be tested to determine compliance with the Strength Tests – Pressure Containing Components in Hydrostatic Strength Test – Vessel, Section 26. The manufacturer shall submit evidence of compliance of these vessels with ASME Boiler and Pressure Vessel Code, Section VIII. 8.5 Valves employed on ASME marked pressure vessels that receive refrigerant during the recovery operation shall comply with the Standard for Cylinder Valves, UL 1769. 8.6 The minimum design pressure of LPG pressure vessels shall be in accordance with NFPA 58. 8.7 Atmospheric tanks and containers storing flammable and combustible liquids that do not meet or exceed ASME pressure standards shall meet the requirements of NFPA 30 Section 9.4, Acceptable Containers, or Section 21.4.2.1, Design Standards for Atmospheric Tanks, as applicable.
10 Piping, Hose, Tubing and Fittings 10.1 Piping, tubing and fittings shall be designed for at least 1.5 times of the operating pressure and shall be suitable for the solvent or cooling fluid. Suitability shall consider the following: a) Material compatibility with the fluids. b) Operating pressure. c) Solvent fluid-containing parts other than a seal ring or gasket shall have a melting point (solidus temperature) of not less than 510°C (950°F). d) The use of dissimilar metals in interconnecting piping, tubing, fittings and other components shall be avoided. Care should be taken to prevent contact between dissimilar metals to prevent electrolytic corrosion. Metal fittings should be compatible with metal tubing materials. If the use of materials from different galvanic groups are used, standard commercial corrosion mitigation methods shall be used. e) Shall be secured and protected against damage. f) Shall be run as directly as possible within the system, using the least amount of fittings as would be practical. g) When in contact with the earth, a support member, or other corrosion causing substance it shall be protected against corrosion or shall be of corrosion resistant material. h) ASME B31.3. 10.2 LP-Gas hose shall comply with the requirements in the following standards, as applicable: a) For CE Code-based installations: CSA 8.1, CSA 8.3, or ULC/ORD C536; and b) For NEC-based installations: UL 21, UL 536 or UL 569.UL 1389-2019 pdf download.