1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2011 SAE International All rights reserved. No part of this publication m
3、ay be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside U
4、SA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/J1409_201102SURFACEVEHICLERECOMMENDEDPRACTICEJ1409 FEB2011 Issued 1983-03 Revised 2011-02Supers
5、eding J1409 MAY2004 Air Brake Valves Test Procedure RATIONALE This document has been updated in keeping with the five-year review process. The Supply and Controls Components Committee has approved the addition of vibration testing per Section 11 and a temperature change from 38 C (100 F) to 43.3 C (
6、110 F) in 3.1. 1. SCOPE This SAE Recommended Practice establishes uniform test procedures for air brake systems pneumatic valves with respect to: a. Input-Output Performance b. Leakage Characteristics c. Low Temperature Evaluation d. Elevated Temperature Evaluation e. Corrosion Resistance Evaluation
7、 f. Endurance Testing g. Structural Integrity h. Vibration Testing 1.1 Purpose This document establishes uniform accelerated laboratory test procedures for evaluating comparative performance characteristics of pneumatic valves designed to operate in 931 kPa (135 psi) nominal air brake systems. These
8、 tests are based upon current industry practices. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1409 Revised FEB2011 Page 2 of 92. REFERENCES 2.1 Applicable Document The following publications
9、 form a part of this specification to the extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 ASTM Publication Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.as
10、tm.org.ASTM B 117 Method of Salt Spray (Fog) Testing 2.2 Related Publications The following publications are provided for information purposes only and are not a required part of this SAE Technical Report.2.2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA
11、 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org.SAE J1410 Air Brake ValvePerformance Requirements SAE J1859 Test Procedures for Determining Air Brake Valve Input-Output Characteristics 3. GENERAL NOTES 3.1 Temperature Unless otherwise specified, all
12、testing shall be conducted at a temperature of 15.5 to 43.3 C (60 to 110 F), inclusive. 3.2 Mounting All testing shall be conducted with the unit mounted essentially as in service. The actual mounting position for each test shall be recorded. 3.3 Leakage Measurement All leakage rates shall be expres
13、sed in standard cubic centimeters per minute of free (atmospheric) air. Leakage shall be indicative of total valve leakage. Various methods may be utilized, such as pressure drop in a specific volume or by flow meters. 3.4 Pressure Units All pressure units are expressed as gage pressure (that is, ab
14、ove atmospheric pressure), unless otherwise specified. 3.5 Cycle Rate (Endurance Test) All endurance testing shall be done at a rate of 15 to 25 cycles per minute. Faster rates are permitted if no abnormal effects are introduced. Copyright SAE International Provided by IHS under license with SAENot
15、for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1409 Revised FEB2011 Page 3 of 93.6 Supply Air Unless otherwise specified, the supply air shall be clean and dry. 3.7 Testing Sequence Unless otherwise specified, it is not necessary to use the same valve for more th
16、an one test section. 3.8 Multiple Function Valves Valves with multiple functions shall be tested per all applicable subsections of any test section as agreed upon by valve manufacturer and purchaser. 3.9 Delivery Volume (Endurance Test) Delivery volumes for all endurance testing shall be agreed upon
17、 by the valve manufacturer and purchaser. 4. INPUT-OUTPUT PERFORMANCE The test and test procedure for the input-output characteristics shall be determined by the intended design and functions as agreed upon by the valve manufacturer and purchaser. A typical characteristic is the comparison of input
18、pressure, force or actuator position versus output pressure (application and release). 5. LEAKAGE CHARACTERISTICS 5.1 Pilot Operated and Mechanically Actuated Modulating Type Valves 5.1.1 Low Supply Pressure Test (No Delivery Pressure Condition) With the valve in the no delivery pressure position, t
19、he delivery port(s) open to atmosphere, and 103 kPa 34 kPa (15 psi 5 psi) air pressure at the supply port(s), measure and record leakage. NOTE: When necessary, apply control signal to close inlet seat before performing this test, such as in the case of normally open or inverting type valves. 5.1.2 F
20、ull Supply Pressure Test (No Delivery Pressure Condition) Repeat 5.1.1 with 931 kPa 34 kPa (135 psi 5 psi) air pressure at the supply port(s). 5.1.3 Full Supply Pressure Test (Applied Condition) 5.1.3.1 With 931 kPa 34 kPa (135 psi 5 psi) air pressure at the supply port and all unused ports plugged,
21、 actuate the valve to an ascending delivery pressure of 103 kPa 34 kPa (15 psi 5 psi). Measure and record leakage. 5.1.3.2 Repeat 5.1.3.1 with an ascending delivery pressure of 414 kPa 34 kPa (60 psi 5 psi). Measure and record leakage. 5.1.3.3 Repeat 5.1.3.1 with the maximum attainable delivery pres
22、sure. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1409 Revised FEB2011 Page 4 of 95.2 Pilot Operated and Mechanically Actuated Non-Modulating Type 5.2.1 Low Supply Pressure Test (No Delivery
23、 Pressure Condition) With the valve in the no delivery pressure position, the delivery port(s) open to atmosphere, and 103 kPa 34 kPa (15 psi 5 psi) air pressure at the supply port(s), measure and record leakage. NOTE: When necessary, apply control signal to close inlet seat before performing this t
24、est such as in the case of normally open or inverting type valves. 5.2.2 Full Supply Pressure Test (No Delivery Pressure Condition) Repeat 5.2.1 with 931 kPa 34 kPa (135 psi 5 psi) air pressure at the supply port(s). 5.2.3 Full Supply Pressure Test (Applied Condition) With 931 kPa 34 kPa (135 psi 5
25、psi) air pressure at the supply port(s) and all unused ports plugged, actuate the valve so that air pressure occurs at the delivery port. Measure and record leakage. 5.3 Through Valves NOTE: Valves with two independent inlet ports shall be tested with one inlet port pressurized and the second open t
26、o atmospheric pressure. These valves must then be retested with the second inlet port pressurized and the first port open to atmospheric pressure. 5.3.1 Low Pressure Test With all applicable ports plugged and 103 kPa 34 kPa (15 psi 5 psi) air pressure at the inlet port, measure and record leakage. 5
27、.3.2 Intermediate Pressure Test Repeat 5.3.1 with 414 kPa 34 kPa (60 psi 5 psi) air pressure at the inlet port. 5.3.3 Full Pressure Test Repeat 5.3.2 with 931 kPa 34 kPa (135 psi 5 psi) air pressure at the inlet port. 5.3.4 (This test only applies to one way check valves.) Repeat 5.3.1, 5.3.2, and 5
28、.3.3 except with the outlet port pressurized and the inlet port vented. 5.4 Automatic Pressure Actuating Valves (Valves That React to Supply Pressure) 5.4.1 Apply an air pressure level to the valve supply port which is 103 kPa 34 kPa (15 psi 5 psi) (ascending and descending) prior to the automatic a
29、ctuation point. Measure and record leakage. 5.4.2 Apply 931 kPa 34 kPa (135 psi 5 psi) air pressure at the supply port. Measure and record leakage. 6. STRUCTURAL INTEGRITY 6.1 Over Pressurization 6.1.1 Pilot Operated and Mechanically Actuated Valves Copyright SAE International Provided by IHS under
30、license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1409 Revised FEB2011 Page 5 of 96.1.1.1 Released Condition With the valve in the released position and the delivery port(s) open to atmosphere (delivery port(s) plugged on normally open or inverti
31、ng type valves), apply and maintain 1138 kPa 34 kPa (165 psi 5 psi) air pressure for 10 s at the supply port. 6.1.1.2 Fully Applied Condition With the valve in the fully applied position and all unused ports plugged (delivery port(s) open to atmosphere on normally open or inverting type valves), app
32、ly and maintain 1138 kPa 34 kPa (165 psi 5 psi) air pressure for 10 s at the supply port and control port (if applicable). 6.1.1.3 Test the valve per Sections 4 and 5. 6.1.2 Through Valves NOTE: Valves with two independent inlet ports shall be tested with one inlet port pressurized and the second op
33、en to atmospheric pressure. These valves must then be retested with the second inlet port pressurized and the first port open to atmospheric pressure. 6.1.2.1 With all applicable ports plugged, apply and maintain 1138 kPa 34 kPa (165 psi 5 psi) air pressure for 10 s at the inlet port. Test the valve
34、 per Sections 4 and 5. 6.1.2.2 (This test only applies to one way check valves.) Apply and maintain 1138 kPa 34 kPa (165 psi 5 psi) air pressure for 10 s at the outlet port with the inlet port vented. Test the valve per Sections 4 and 5. 6.1.3 Automatic Pressure Actuating Valves 6.1.3.1 With all app
35、licable ports plugged, apply and maintain 1138 kPa 34 kPa (165 psi 5 psi) air pressure for 10 s at the supply port. Test the valve per Sections 4 and 5. 6.2 Maximum Pressure Test NOTE: This test is potentially dangerous and precaution should be taken to avoid operator injury in case of valve failure
36、 due to the high internal pressure. 6.2.1 Pilot Operated and Mechanically Actuated Valves 6.2.1.1 Released Condition With the valve in the released position and the delivery port(s) open to atmosphere (delivery ports plugged on normally open or inverting type valves), increase hydrostatic pressure a
37、t the supply port at a uniform rate not exceeding 6890 kPa (1000 psi) per minute to the maximum attainable pressure not to exceed 2070 kPa (300 psi). Maintain pressure for 10 s and visually inspect valve. Record leakage location or damage to the valve. 6.2.1.2 Fully Applied Condition With the valve
38、in the fully applied position and all unused ports plugged (delivery ports open to atmosphere on normally open or inverting type valves), increase hydrostatic pressure at the supply port and control port (if applicable) at a uniform rate not exceeding 6890 kPa (1000 psi) per minute to the maximum at
39、tainable pressure not to exceed 2070 kPa (300 psi). Maintain pressure for 10 s and visually inspect valve. Record leakage location or damage to the valve. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-
40、,-,-SAE J1409 Revised FEB2011 Page 6 of 96.2.2 Through Valves NOTE: Valves with two independent inlet ports shall be tested with one inlet port pressurized and the second open to atmospheric pressure. These valves must then be retested with the second inlet port pressurized and the first open to atm
41、ospheric pressure. 6.2.2.1 With all applicable ports plugged, increase hydrostatic pressure at the inlet port at a uniform rate not exceeding 6890 kPa (1000 psi) per minute to the maximum attainable pressure not to exceed 2070 kPa (300 psi). Maintain pressure for 10 s and visually inspect valve. Rec
42、ord leakage location or damage to the valve. 6.2.2.2 (This test only applies to one way check valves.) Increase hydrostatic pressure at the outlet port at a uniform rate not exceeding 6890 kPa (1000 psi) per minute to the maximum attainable pressure not to exceed 2070 kPa (300 psi) with the inlet po
43、rt vented. Record leakage location or damage to the valve 6.2.3 Automatic Pressure Actuating Valves With all applicable ports plugged, increase hydrostatic pressure at the supply port at a uniform rate not exceeding 6890 kPa (1000 psi) per minute to the maximum attainable pressure not to exceed 2070
44、 kPa (300 psi). Maintain pressure for 10 s and visually inspect valve. Record leakage location or damage to the valve. 6.3 Mounting The procedure for this test shall be determined by the intended design and function as agreed upon by the valve manufacturer and the purchaser. 7. LOW TEMPERATURE EVALU
45、ATION 7.1 Low Temperature Leakage Subject the valve to a temperature of -40 C 1 C (-40 F 2 F) for 24 h 4 h with 0 kPa (0 psi) pressure applied. Maintain the surrounding atmosphere temperature and supply air at -40 C 1 C (-40 F 2 F) and conduct leakage test per Section 5. 7.2 Low Temperature Function
46、 The procedure for this test shall be determined by the intended design and function as agreed upon by valve manufacturer and purchaser. 7.3 Room Temperature Test Allow the valve to return to room temperature and test per Sections 4 and 5. 8. ELEVATED TEMPERATURE EVALUATION 8.1 Elevated Temperature
47、Leakage Subject the valve to a temperature of 105 C 3 C (221 F 5 F) for 24 h 4 h with 0 kPa (0 psi) pressure applied. Maintain the surrounding temperature and supply air at 105 C 3 C (221 F 5 F) and conduct leakage test per Section 5. 8.2 Elevated Temperature Function The procedure for this test sha
48、ll be determined by the intended design and function as agreed upon by the valve manufacturer and purchaser. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J1409 Revised FEB2011 Page 7 of 98.3 Elevated Temperature Endurance 8.3.1 Elevated Temperature Endurance Higher temperatures may be appropriate for some applications, depending on the location of
