1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 429 Electrically Operated ValvesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER R
2、EPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electrically Operated Valves, UL 429 Seventh Edition, Dated November 6, 2013 Summary of Topics This new edition of UL 429 is being issued to adopt the proposed revisions to the scope, denitions, materials, uid connecti
3、ons, enclosures, and numerous revisions to the performance requirements including the addition of sections 48 55. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated January 9, 2013, June 3, 2013, and July 26, 2013. All rights reserved. No part of
4、this publication may be reproduced, stored in a retrieval system, 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
5、 but not limited to, the implied warranties of merchantability 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 i
6、nability to use this Standard, even if UL or an authorized 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 S
7、tandards for Safety agree to defend, indemnify, and hold UL 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 co
8、mputer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. The prior text for requirements that have been revised a
9、nd that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. The following table lists the future effective dates with the corresponding reference. NOVEMBER 6, 2013 UL 429 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
10、 OR DISTRIBUTION WITHOUT PERMISSION FROM UL Future Effective Dates References October 19, 2018 Entire 7th edition. NOVEMBER 6, 2013 UL 429 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 6, 2013 1 UL 429 Standard for Electrically
11、 Operated Valves First Edition January, 1955 Second Edition May, 1973 Third Edition March, 1982 Fourth Edition August, 1994 Fifth Edition March, 1999 Sixth Edition November, 2009 Seventh Edition November 6, 2013 This UL Standard for Safety consists of the Seventh edition. The Department of Defense (
12、DoD) has adopted UL 429 on August 10, 1989. The publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption. 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 Reques
13、t 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 rights regarding those Standards sh
14、all remain the sole and exclusive property of UL. COPYRIGHT 2013 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 6, 2013 ELECTRICALLY OPERATED VALVES - UL 429 2 No Text on This PageUL COPYRIGHTED MATERI
15、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .6 2 General 6 2.1 Components .6 2.2 Units of measurement .7 2.3 Undated references .7 2.4 Automotive-fuel valve .7 2.5 Marine valve .7 3 Glossary .7 CONSTRUCTION 4 General 9 5 Assembl
16、y 9 5.1 All valves 9 5.2 Safety valves .10 5.3 Class 2 valves 10 6 Materials 11 6.1 All valves .11 6.2 Safety valves and general purpose valves for ammable, combustible and hazardous uids .12 6.3 Synthetic rubber materials 12 6.4 Corrosion protection .13 6.5 Insulating materials 14 7 Fluid Connectio
17、ns 16 8 Seals and Stuffing Boxes .16 9 Springs .17 10 Diaphragms 17 10.1 All valves 17 10.2 Flammable and hazardous uid valves 17 11 Operating Mechanisms 17 12 Current-Carrying Parts 18 13 Electrical Enclosures 18 13.1 General .18 13.2 Metallic enclosures .19 13.3 Polymeric enclosures .22 13.4 Enclo
18、sure conduit connection 23 13.5 Openings 24 13.6 Accessibility of live parts 26 13.7 Screens and expanded metal 28 13.8 Rainproof, raintight, and watertight enclosures .29 13.9 Corrosion protection 29 13.10 Safety valves .31 14 Field Wiring Connections 31 14.1 General .31 14.2 Leads .31 14.3 Field w
19、iring terminals .32 14.4 Wiring space .34 15 Internal Wiring 34 NOVEMBER 6, 2013 ELECTRICALLY OPERATED VALVES - UL 429 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 16 Grounding .35 17 Bonding .36 18 Protection of Users and Service Person
20、nel 36 19 Transformers, Coils and Motors 36 20 Switches .37 21 Spacings 37 21.1 General .37 21.2 High-voltage circuits 38 21.3 Class 2 safety valves and Class 2 safety-control circuits 42 21.4 Other than safety valves and safety-control circuits .42 22 Alternate Spacing Clearances and Creepage Dista
21、nces .42 23 Separation of Circuits .44 23.1 General .44 23.2 Barriers .45 PERFORMANCE 24 General 45 25 Input Test 47 26 Temperature Test .47 27 Operation Test .51 27.1 All valves 51 27.2 Safety valves 51 28 Torque Test 52 28.1 All valves 52 28.2 Safety valves 53 29 External Leakage Test 53 30 Seat L
22、eakage Test 54 31 Endurance Test 56 32 Valve-Body Endurance Test 58 33 Vibration Test Safety Valves .58 34 Hydrostatic Strength Test 59 35 Valve-Body Distortion with Static Pressure Test 59 36 Valve-Body Impact Test .60 37 Dielectric Voltage-Withstand Test .60 38 Increased Potential Test .61 39 Burn
23、out Test .62 40 Breakdown of Component Test .63 41 Valve Body Distortion Test .64 42 Rain Test 64 43 Hosedown Test .67 44 Metallic Coating Thickness Test 67 45 Salt Spray Test .68 46 Immersion-Volume Change Test 69 47 Immersion-Extraction Test .70 48 Printed Wiring Board Abnormal Operation Test .70
24、49 Sight Glass Impact Test .71 50 Sight Glass Temperature Shock Test .71 51 Dimensional Stability 72 52 Coil Retainer Impact Test 72 53 Coil Retainer Mechanical Strength 73 54 Accelerated Hydrogen-Pressure Aging Test 73 55 Clamped Insulating Joints in Lieu of Spacings 73 NOVEMBER 6, 2013 ELECTRICALL
25、Y OPERATED VALVES - UL 429 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MANUFACTURING AND PRODUCTION TESTS 56 General 75 ELECTRICAL RATINGS 57 Details .76 MARKINGS 58 Details .76 59 Cautionary Markings 79 60 Visibility and Permanence of
26、Markings 79 60.1 General .79 60.2 Unusual-condition exposure test .79 SUPPLEMENT SA - MARINE USE ELECTRICALLY OPERATED SHUT-OFF VALVES FOR FLAMMABLE LIQUIDS SA1 Scope SA1 SA2 Installation and Operating Instructions SA1 SA3 General SA1 SA4 Materials .SA2 SA5 Electrical Connections SA2 SA6 General SA2
27、 SA7 Vibration Test .SA3 SA8 Shock Test .SA3 SA9 Ignition Protection Test .SA4 SA10 Chemical Resistance Test .SA4 SA11 Fire Test SA4 SA12 Operation and Temperature Tests SA6 SA12.1 Low temperature .SA6 SA12.2 Abnormal operation SA6 SA12.3 Normal operation .SA7 SA13 Details SA7 APPENDIX A Standards f
28、or ComponentsA1 NOVEMBER 6, 2013 ELECTRICALLY OPERATED VALVES - UL 429 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover electrically operated general purpose and safety valves rated 600 volts
29、 or less and intended for the control of uids, such as air, gases, oils, refrigerants, steam, water, and the like. Electrically operated valves, other than automotive fuel valves, covered by these requirements are intended to be used in other than hazardous locations as dened by the National Electri
30、cal Code, NFPA 70. 1.2 These requirements also cover electrically operated valves intended to be factory installed on or in certain appliances as operating or safety controls. 1.3 These requirements do not cover automatic valves for gas appliances that are covered by the requirements in the Standard
31、 for Automatic Valves for Gas Appliances, ANSI Z21.21/CSA 6.5. 1.4 These requirements do not cover valves employing electrical parts, including coils, switch contacts and resistance elements, located in the ammable gas containing compartment of a valve. Valves constructed as such shall comply with t
32、he requirements in the Standard for Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, and III, Division 1, Hazardous (Classied) Locations, UL 913. 1.5 When the valve assembly includes a pressure or ow regulator, its regulating ability is not covered by requirements in thi
33、s standard. 1.6 When a mechanically actuated indicator is provided to indicate whether the valve is open or closed, its visibility from any distance is not covered by requirements in this standard. 1.7 In addition to the requirements in this standard, valves intended for re protection service are re
34、quired to comply with the Outline of Investigation for Electrically Operated Valves for Fire Protection Service, SU 429A. 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, a component of a valve covered by this standard shall comply with the requirements for that component. See Appendix A
35、 for a list of standards covering components used in the valves 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 required in the application of the component in the product covered by this standard, or b
36、) Is superseded by a requirement in this standard. NOVEMBER 6, 2013 ELECTRICALLY OPERATED VALVES - UL 429 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.1.3 A component shall be used in accordance with its rating established for the inte
37、nded conditions of use. 2.1.4 Specic 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 not exceeding specied limits, and shall be used only under those specic
38、conditions. 2.2 Units of measurement 2.2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information. 2.2.2 Unless indicated otherwise all voltage and current values mentioned in this standard are root-mean-square (rms). 2.3 Undated refer
39、ences 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. 2.4 Automotive-fuel valve 2.4.1 An automotive fuel valve shall comply with the requirements applicable to safety va
40、lves and as noted in 14.1.3, 14.2.6 and 58.4. 2.5 Marine valve 2.5.1 A valve used for marine service shall additionally comply with the requirements in Supplement SA. 3 Glossary 3.1 For the purpose of this standard the following denitions apply. 3.2 AUTOMOTIVE-FUEL VALVE An electrically operated val
41、ve rated for use with a direct current (DC) circuit and intended for use as a fuel-line shutoff valve on mobile equipment. 3.3 ELECTRICAL CIRCUITS a) Class 2 Circuit A circuit involving a potential of not more than 42.4 volts peak supplied by: 1) An isolating source that complies with the requiremen
42、ts in the Standard for Class 2 Power Units, UL 1310, or the requirements in the Standard for Low Voltage Transformers Part 1: General Requirements, UL 5085-1, and the Standard for Low Voltage Transformers Part 3: Class 2 and Class 3 Transformers, UL 5085-3 2) A dry cell battery having output charact
43、eristics no greater than those of an inherently limited Class 2 transformer; or 3) A combination of a rechargeable battery and a xed impedance or regulating network that complies with the applicable performance requirements for an inherently limited Class 2 transformer. NOVEMBER 6, 2013 ELECTRICALLY
44、 OPERATED VALVES - UL 429 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL b) High-Voltage Circuit A circuit involving a potential of not more than 600 volts and having circuit characteristics in excess of those of a Class 2 circuit. c) Safe
45、ty-Control Circuit A circuit involving one or more safety controls. 3.4 FLAMMABLE AND COMBUSTIBLE FLUID A gas or liquid considered to be ammable or combustible, such as acetylene, petroleum base hydraulic oil, fuel oil, gasoline, kerosene, or similar petroleum product, liqueed petroleum gas (LP-Gas)
46、, manufactured or natural fuel gas, anhydrous ammonia, or hydrogen. 3.5 GENERAL PURPOSE VALVE Either a normally open or normally closed valve intended to control the ow of a uid, but not depended upon to act as a safety valve. 3.6 HAZARDOUS FLUID A gas or liquid considered to be highly corrosive or
47、toxic, for example, a strong acid or alkali, ammonia, or perchlorethylene. Refrigerants designated other than Class A1 per the Standard for Designation and Safety Classication of Refrigerants, ASHRAE 34 are considered hazardous. 3.7 HYDRAULIC FLUID POWER SYSTEM A system that transmits and controls p
48、ower by use of a pressurized hydraulic uid within an enclosed circuit. 3.8 INTERLOCK A switch or control intended to verify the physical state of a required condition, such as proof of closure (that is, supervise the closing of a safety valve) and to furnish that verication to a safety-control circu
49、it by means of a switch contact closure. 3.9 MAXIMUM OPERATING PRESSURE DIFFERENTIAL The maximum difference between the pressure at an inlet port and the pressure at an outlet port against which an electrically operated valve is intended to operate. 3.10 MAXIMUM RATED PRESSURE The maximum pressure to which the valve assembly may be subjected as specied by the manufacturer. 3.11 MINIMUM OPERATING PRESSURE DIFFERENTIAL The minimum difference between the pressure at a
