ANSI UL 1769-2015 UL Standard for Safety Cylinder Valves (Fifth Edition Reprint with revisions through and including April 27 2016).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1769 Cylinder Valves STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F

2、URTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Cylinder Valves, UL 1769 Fifth Edition, Dated June 25, 2015 Summary of Topics This revision of ANSI/UL 1769 adds requirements for valves with quick coupling connections. The revised requirements are substantial

3、ly in accordance with Proposal(s) on this subject dated January 22, 2016. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. All rights reserved. No part of this publication may be reproduced, stored in a retrieval s

4、ystem, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantabil

5、ity or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized

6、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 Safety agree to defend, indemnify, and hold UL

7、 harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. APRIL 27, 2016 UL 1769 tr1UL COPYRIGHTED MAT

8、ERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 27, 2016 UL 1769 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 25, 2015 (Title Page Reprinted: April 27, 2016) 1 UL

9、 1769 Standard for Cylinder Valves First Edition April, 1989 Second Edition May, 1996 Third Edition February, 2003 Fourth Edition June, 2006 Fifth Edition June 25, 2015 This ANSI/UL Standard for Safety consists of the Fifth edition including revisions through April 27, 2016. The most recent designat

10、ion of ANSI/UL 1769 as an American National Standard (ANSI) occurred on April 27, 2016. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should

11、 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 any way. All of ULs Standards and all copyrights, ownerships, and

12、rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 1769-2016UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 25, 2015 CYLINDER VALVES - UL 1769 2 No

13、Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 General 6 2.1 Components 6 2.2 Units of measurement .6 2.3 Undated references .6 3 Service-Pressure and Temperature Ratings 7 4 Glossary .7 C

14、ONSTRUCTION 5 General 8 6 Handwheels 9 7 Materials .11 8 Connections 12 9 Pressure-Relief Devices 13 10 Bodies 13 11 Shut-off Assemblies .14 12 Service Valves for LP-Gas for Use On Industrial Truck Type Containers .14 PERFORMANCE 13 General 16 14 Deformation Test 17 15 External Leakage Test .18 16 S

15、eat Leakage Test 18 17 Endurance Test .18 18 Hydrostatic-Pressure Test 19 19 Pressure-Relief Device Tests .19 20 Accelerated Aging Test 20 21 Accelerated Hydrogen-Pressure Aging Test 20 22 Fluid Compatibility Test 20 23 Tests of Gaskets and Seals Used in Refrigerant Systems 21 23.1 General .21 23.2

16、Tensile strength and elongation test 21 23.3 Refrigerant exposure test 22 23.4 Oil immersion test 22 24 Low-Temperature Test 22 25 Moist Ammonia Air Stress Cracking Test .22 26 Valve Stem Torque Test .23 27 BTU Flow Rating Test .24 28 Service Valves for LP-Gas for Use On Industrial Truck Type Contai

17、ners .24 MANUFACTURING AND PRODUCTION TESTS 29 General 25 JUNE 25, 2015 CYLINDER VALVES - UL 1769 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARKING 30 General 25 Appendix A Standards for ComponentsA1 JUNE 25, 2015 CYLINDER VALVES - UL

18、 1769 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover shut-off valves, with or without relief valve, that are for use on cylinders that comply with the specications and charging and maintena

19、nce regulations of the U.S. Department of Transportation (DOT) or the corresponding specications and regulations of Transport Canada (TC). 1.2 Valves covered by these requirements are for use on DOT or TC cylinders used for ow of gas into and out of the cylinder, in applications such as, but not lim

20、ited to, automotive, medical, or industrial systems, vehicles, facilities, or providing fuel to buildings or appliances, and as covered in the following standards: a) Liqueed Petroleum Gas Code, NFPA 58; b) Design and Installation of Oxygen-Fuel Gas Systems for Welding, Cutting, and Allied Processes

21、, NFPA 51; c) Safety Requirements for the Storage and Handling of Anhydrous Ammonia See CGA G-2.1, CGA K61.1; d) Safety in Welding, Cutting, and Allied Processes, AWS Z49.1; and e) Health Care Facilities, NFPA 99. 1.3 Gas-line shut-off valves, other shutoff valves used on ASME containers, ller valve

22、s, excess ow check valves, for use with liqueed petroleum gases or anhydrous ammonia are covered by the requirements in the Standard for Flow Control Valves for Anhydrous Ammonia and LP-Gas, UL 125. 1.4 Gas-line shut-off valves for use with ammable gases are covered by the requirements in the Standa

23、rd for Valves for Flammable Fluids, UL 842. 1.5 Gas-line shutoff valves for compressed gases, other than those described in 1.3 and 1.4, are covered by the requirements in Outline of Investigation for Compressed Gas Shutoff Valves, UL 1477. 1.6 The type of refrigerant used in the system shall comply

24、 with the Standard for Refrigerants, UL 2182. JUNE 25, 2015 CYLINDER VALVES - UL 1769 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a component of a product covered by this stan

25、dard shall comply with the requirements for that component. See Appendix A for a list of standards covering components generally used in the products covered by this standard. 2.1.2 A component is not required to comply with a specic requirement that: a) Involves a feature or characteristic not requ

26、ired in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.1.3 A component shall be used in accordance with its rating established for the intended conditions of use. 2.1.4 Specic components are incomplete in constructio

27、n 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. 2.1.5 A cylinder valve is permitted to incorporate several differ

28、ent types of components such as, but not limited to, a back pressure check-valve, excess ow check-valve, quick-disconnect coupling, quick-closing coupling, xed tube vent valve, liquid-level gauge, and/or high pressure gauge. 2.2 Units of measurement 2.2.1 Values stated without parentheses are the re

29、quirement. Values in parentheses are explanatory or approximate information. 2.3 Undated references 2.3.1 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. JUNE 25, 2015 CYLINDE

30、R VALVES - UL 1769 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3 Service-Pressure and Temperature Ratings 3.1 The service-pressure rating of a cylinder valve intended for use with anhydrous ammonia, LP-Gas, MPS-Gas, or acetylene shall n

31、ot be less than 250 psig (1.7 MPa). 3.2 The service-pressure rating of a cylinder valve intended for use with carbon dioxide shall not be less than 1800 psig (12.41 MPa). 3.3 The service-pressure rating of a cylinder valve intended for use with propylene shall not be less than 325 psig (2.2 MPa). 3.

32、4 The service-pressure rating of a cylinder valve intended for all other liqueed or nonliqueed compressed gases or compressed gas in solution shall not be less than the maximum pressure dened for the connection that complies with the Standard for Compressed Gas Cylinder Valve Outlet and Inlet Connec

33、tions, CGA V-1. 3.5 Cylinder valves covered by these requirements are intended for use at ambient temperatures within the range of minus 40F 130F (minus 40C 55C). 4 Glossary 4.1 For the purpose of this standard, the following denitions apply: 4.2 COMPRESSED GAS IN SOLUTION (ACETYLENE) A nonliqueed c

34、ompressed gas that is dissolved in a solvent. 4.3 CYLINDER A portable container that complies with the specication for cylinders constructed under Subpart C of Part 178 of the DOT Regulations and similar cylinder specications of the TC Regulations. 4.4 DOT REGULATIONS The U.S. Department of Transpor

35、tation Regulations for the Transportation of Hazardous Materials, under Code of Federal Regulations Title 49, Parts 100 199. 4.5 FUEL GAS Acetylene, hydrogen, natural gas, liqueed petroleum gas (LP-Gas), methylacetylene-propadiene stabilized gas (MPS-Gas), and other liqueed and nonliqueed ammable ga

36、ses that are stable because of their composition, or because of the conditions of storage. 4.6 LIQUEFIED COMPRESSED GAS A gas which, under the charged pressure, is partially liquid at a temperature of 70.0F (21.1C). 4.7 LIQUEFIED PETROLEUM GAS (LP-GAS OR LPG) Any material having a vapor pressure not

37、 exceeding that allowed for commercial propane 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. 4.8 NONLIQUEFIED COMPRESSED GAS A gas, other than a gas in so

38、lution, which under the charged pressure is entirely gaseous at a temperature of 70.0F (21.1C). 4.9 PRESSURE-RELIEF DEVICE A device intended to prevent rupture of a normally charged cylinder, when exposed to abnormal or emergency conditions such as a re condition. 4.10 TC REGULATIONS The Transport C

39、anada Regulations under the Transportation of Dangerous Goods Act. JUNE 25, 2015 CYLINDER VALVES - UL 1769 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONSTRUCTION 5 General 5.1 A valve shall include all of the components required for i

40、ts intended function and installation, and shall be furnished as a single unit or assembly. 5.2 A valve intended to be repaired shall be constructed so that parts are capable of being reassembled after being dismantled to the extent required for routine maintenance. 5.3 A seat disc shall be attached

41、 to its poppet or holder, or otherwise assembled to prevent it from becoming dislocated under service conditions. The means to secure the disc shall not rely on cement or adhesive. 5.4 A brazing material used for joining liquid-conning parts of a valve for LP-Gas shall have a melting point (solidus

42、temperature) not less than 1000F (538C). Brazing shall not be used on a valve intended for use with anhydrous ammonia. See 7.7. 5.5 A valve shall not be equipped with a means to prevent it from closing completely. 5.6 A valve shall be constructed so that a pressure-relief device operates in its inte

43、nded manner with the shut-off portion of the valve, and the overlling prevention device if provided, in the closed position. 5.7 A valve for LP-Gas for use on nominal44 0pound nominal LP-Gas capacity (10.2 95.3 pound water capacity) shall be provided with all of the following: a) A CGA 791, CGA 793,

44、 or CGA 810 (Type I or Type II) outlet connection complying with the Standard for Compressed Gas Cylinder Valve Outlet and Inlet Connections, CGA V-1. b) An overlling prevention device complying with the Standard for Overlling Prevention Devices, UL 2227. c) A xed maximum liquid level gauge includin

45、g a dip tube. The vent valve portion of the gauge shall be of the type that incorporates a at-bladed screwdriver slot for operation. d) The xed maximum liquid level gauge (vent valve) shall have the vent stem retained, such as by staking or crimping, so that it cannot be removed from the valve body

46、by reverse rotation. Exception No. 1: Valves intended for use on cylinders used in industrial truck service (including forklift truck cylinders) and cylinders identied and used in industrial welding and cutting gas applications, are not required to comply with the requirements noted in (a), (b), and

47、 (c) above. Exception No. 2: A CGA 793 outlet connection complying with the Standard for Compressed Gas Cylinder Valve Outlet and Inlet Connections, CGA V-1 shall be limited to use on composite cylinders between 2.2 and 19 lbs propane capacity. JUNE 25, 2015 CYLINDER VALVES - UL 1769 8UL COPYRIGHTED

48、 MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.8 The maximum venting ow from a xed maximum liquid level gauge valve for LP-Gas shall not exceed that from a No. 54 drill orice (0.055 inch diameter). 5.9 For valves provided with a threaded overlling prev

49、ention device, the device shall be attached to the valve body with a sealing compound suitable for LP-Gas. Polytetrauoroethylene (PTFE) tape shall not be used. 6 Handwheels 6.1 A valve for LP-Gas intended for use with an overlling prevention device shall comply with the following: a) The handwheel design shall be tri-lobular as shown in Figure 6.1. b) The handwheel shall be permanently attached and be integral to the valve stem or secured with a tamper