SAE J 1942-1989 Hose and Hose Assemblies for Marine Applications.pdf

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 revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2014 SAE International All rights reserved. No part of this p

3、ublication may 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: +1 724-776-497

4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/J1942_201406 SURFACE VEHICLE STANDARD J1942 JUN2014 Issued 1989-03Reaffirmed 2014

5、-06 Superseding J1942 JUL2009 Hose and Hose Assemblies for Marine Applications RATIONALE J1942 has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE SAE J1942, developed through the cooperative efforts of the U.S. Coast Guard and SAE, became effective August 28, 19911, as the

6、official document for nonmetallic flexible hose assemblies for commercial marine use. This SAE Standard covers specific requirements for several styles of hose and/or hose assemblies in systems on board commercial vessels inspected and certificated by the U.S. Coast Guard. It is intended that this d

7、ocument establish hose constructions and performance levels that are essential to safe operations in the marine environment. Refer to SAE J1273 for selection, installation, and maintenance of hose and hose assemblies. Refer to SAE J1527 Marine Fuel Hose for hose to convey gasoline or diesel fuel abo

8、ard small craft, including pleasure craft and related small commercial craft regulated directly or by reference under 33 CFR 183 Subpart J, and boats and yachts meeting American Boat and Yacht Council standards. SAE J1942-1Qualified Hoses for Marine Applications is a listing of the products which ha

9、ve been certified for use in the applications described in SAE J1942, Table 1HOSE APPLICATION / CONSTRUCTION, for Fluid Power, Fuel Oil, Lube Oil, Water, and Pneumatic systems. SAE J1942-1 is updated yearly and is available from SAE as a single copy document. 2. REFERENCES 2.1 Applicable Publication

10、s The following publications form a part of the specification to the extent specified herein. Unless otherwise indicated, the latest revision of SAE publications shall apply. 1Ref. Federal Register/Vol. 56, No. 145/Monday, July 29, 1991/Rules and Regulations SAE INTERNATIONAL J1942 Reaffirmed JUN201

11、4 Page 2 of 8 2.1.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. SAE J343 Test and Test Procedures for SAE 100R Series Hydraulic Hose and Hose Assemblies SAE

12、 J517 Hydraulic Hose SAE J1273 Recommended Practices for Hose Assemblies SAE J1475 Hydraulic Hose Fittings for Marine Applications SAE J1527 Marine Fuel Hoses SAE J1942-1 Qualified Hoses for Marine Applications 2.1.2 ASTM Publication Available from ASTM International, 100 Barr Harbor Drive, P.O. Box

13、 C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM D 1141-98 Specification for Substitute Ocean Water 2.1.3 MSHA Publication Available from MSHA, 1100 Wilson Boulevard, 21st Floor, Arlington, VA 22209-3939, Tel: 202-693-9400, www.msha.gov. MSHA 30 CFR 18.65 Conservation o

14、f Power and Water ResourcesSubchapter BRegulations Under the Federal Power Act 2.1.4 ISO Publication Available from ANSI, 25 West 43rd Street, New York, NY 10036-8002, Tel: 212-642-4900, www.ansi.org. ISO 15541 Ships and marine technologyFire resistance of hose assembliesRequirements for the test be

15、nch 3. HOSE APPLICATION/CONSTRUCTION Hose construction and performance shall conform to Table 1. SAE INTERNATIONAL J1942 Reaffirmed JUN2014 Page 3 of 8 TABLE 1 - HOSE APPLICATION/CONSTRUCTION Code Application Maximum Working Pressure Hose Reinforcement/ Construction Requirements Notes HF All Service

16、s (1)(2) Plies or braids of steel wire with or without textile(3)Sections 6, 7, 8, 9, 10, 11 (SAE J517 may be substituted for Section 9) Acceptable for Codes H, VW, NVW, and F applications(2)H Fluid Power (Hydraulic Systems) (1) Plies or braids of steel wire or textile(3)Sections 6, 7, 9, 10, 11 (SA

17、E J517 may be substituted for Section 9) Acceptable for Codes H, VW, and NVW applications F Lube Oil and Fuel Systems (1) Plies or braids of steel wire with or without textile(3)Sections 6, 7, 8, 9, (impulse per 9E not required) 10, 11 Acceptable for Codes F, VW, and NVW applications VW Vital and No

18、nvital Fresh and Salt Water (1)Plies or braids of steel wire or textile(3)Sections 6, 7, 10, 11 Acceptable for Codes VW and NVW applications NVW Nonvital Water and Pneumatic 0.34 MPa Optional Sections 6, 7, 10, 11 Acceptable for Code NVW application only 1. As rated by SAE J517 or as rated by manufa

19、cturer. 2. Maximum working pressure for lube oil and fuel systems applications (Code F) may be less than maximum working pressure for other systems applications, e.g., Code H. Refer to manufacturers catalog and Hose Assemblies List, SAE J1942-1. 3. Wire helix construction may be used on suction and

20、return lines in conjunction with a textile reinforcement. 4. FITTINGS Fittings shall conform to SAE J1475 where applicable. Only hose and fitting combinations that have been tested and passed the requirements of this document as hose assemblies are acceptable. Push-on fittings, quick disconnect coup

21、lings and fittings with a single worm-gear clamp or a single band around the hose are unacceptable. 5. QUALIFICATION TESTS For qualification to this document, hose and/or assemblies made from, shall conform to the tests and requirements specified in Table 1 for each hose application. Testing shall c

22、onform to SAE J343 except as noted. Manufacturers wishing to have their hose assemblies listed in SAE J1942-1 shall: a. Successfully test their hose to the requirements of Table 1. b. Submit a letter of certification to the SAE J1942 test requirements for each specific type of hose tested. All sizes

23、 should be included in the same letter, which must also include all of the information necessary to make a SAE J1942-1 listing. c. The SAE will review the letter and may, at their discretion, request to see some or all of the test results. A copy of the submittal letter marked “Accepted For Listing”

24、 will be returned to the applicant and a duplicate copy sent to the USCG. d. The cutoff date for inclusion of a hose listing in the annual SAE Handbook is April 30 of the preceding year. However, listed hoses may be used on vessels as soon as the “Accepted for Listing” letter is issued by the SAE. S

25、AE INTERNATIONAL J1942 Reaffirmed JUN2014 Page 4 of 8 6. IMMERSION-BURST TEST One 450 mm assembly, uncapped, shall be completely immersed in a nonpressurized, closed container filled with synthetic sea water conforming to ASTM D 1141-98 for 48 h 1 h at 70 C 1 C. The assembly shall then be removed an

26、d held for 48 h 1 h in air at room temperature 21 C 2.5 C. Following this aging, the assembly shall be subjected to the burst test specified in SAE J343. Burst shall not occur at a pressure less than four times the maximum working pressure of the hose. Within 0.5 h following the burst test, the hose

27、 shall be cut apart and the reinforcement examined for signs of corrosion and/or deterioration. The wire of wire reinforced hose shall not show red rust. 7. FLAME RESISTANCE TEST The hose cover shall pass the MSHA (Mine Safety Health Administration) flame resistance requirements of 30 CFR 18.65. In

28、lieu of testing the hose cover, it may be protected by a fire sleeve of suitable material that conforms to the flame resistance criteria of 30 CFR 18.65. 8. FIRE RESISTANCE TEST The test described in paragraph 8.2 is becoming the preferred method for qualifying hose assemblies. Manufacturers qualify

29、ing hoses to this specification may do so using either test method. Hose assemblies currently listed in SAE J1942-1 were qualified using the existing 2.5 Minute Fire Test (paragraph 8.1). These hoses will now be identified as SAE J1942 Type “A“ hose. Manufacturers who wish to requalify their existin

30、g hose or new hose to the 30 minute test (paragraph 8.2) these hoses will be identified as SAE J1942 Type “B”. 8.1 2.5 Minute Fire Test For hose 51 mm inside diameter and smaller, three assemblies are to be consecutively tested for fire resistance. For hoses larger than 51 mm inside diameter, one ho

31、se assembly shall be tested. Free hose length measured between the fittings shall be 400 to 600 mm. At least one end fitting shall be positioned to be engulfed in the flame. The hose shall be positioned 230 mm above the top edge of an open pan the size of 215 x 355 x 13 mm. Sufficient heptane or oth

32、er equivalent fuel shall be added to the pan to provide for a 2-1/2 min burn. Thermocouples shall be mounted so as to sense the flame temperature in the same plane and elevation as the hose assembly. The assembly shall be pressurized with water to the maximum working pressure and maintained during t

33、he burning portion of the test. Following ignition of the fuel, timing shall begin and the temperature shall be monitored. The temperature shall reach a minimum of 650 C but shall not exceed 730 C. (If 650 C is not reached, the test must be repeated with a new sample. If 730 C is exceeded, results m

34、ay be discarded and the test repeated). At the end of the 2-1/2 min of fire exposure, the flame shall be extinguished and pressure relieved. Water from a source located 915 mm above the specimen shall flow through the assembly. Failure to achieve free flow shall constitute failure. With free flow es

35、tablished, the assembly shall be pressurized to the maximum working pressure for 30 seconds. Leakage during the fire exposure or subsequent pressure test constitutes a failure. Reference Figures 1 and 2 for fire test set-up and test chamber. NOTE: Hose assemblies may use protective fire sleeves. SAE

36、 INTERNATIONAL J1942 Reaffirmed JUN2014 Page 5 of 8 1Dimensions may vary slightly provided that all other test parameters in Section 8 are met. FIGURE 1 - FIRE TEST CABINET FIGURE 2 - TEST SET-UP SAE INTERNATIONAL J1942 Reaffirmed JUN2014 Page 6 of 8 8.2 30 Minute Fire Test For hose assemblies up to

37、 and including 100 mm in diameter. This procedure may be used for larger sizes provided that proper test bench (ISO 15541) conditions are obtained. Tests shall be conducted on a minimum of three assemblies of different nominal diameters, of the same construction. One each of the smallest, middle and

38、 largest sizes within a series shall be tested. Free hose length measured between the connectors shall be a minimum of 500 mm. The hose assembly shall be installed on the test bench (ISO 15541) so that the burner end extends beyond the hose connector by at least 20 mm so that one connector is comple

39、tely engulfed in the flame with the hose positioned so that it is centered over the flame. To ensure that the flame engulfs the test specimen the minimum burner width from Table 2 shall be used. TABLE 2 - MINIMUM BURNER WIDTH Dimensions are in mllimeters Outside Diameter of Hose Minimum Width of Bur

40、ner 5 to 25 50 From 25 to 75 100 From 75 to 125 150 From 125 to 150 200 From 150 to 200 250 Test specimen shall be flushed with test medium water for at least one (1) minute to remove as much air as possible from the test specimen. Thermocouples shall be mounted so temperatures can be measured at th

41、e positions indicated in Figure 3. 1. Hose Assembly 2. Direction of Water Flow 3. Center of Hose Fitting Socket 4. Burner 5. Burner Width FIGURE 3 - TEST SPECIMEN TO FLAME ARRANGEMENT The test specimen shall be subjected to a working pressure of 0.5 0.02 MPa as provided for the test. The test durati

42、on starts at the moment the test specimen is subjected to the test temperature (flame temperature), which shall have been reached at both measuring points. The duration of the test is 30 minutes. The temperatures according to Table 3 shall be observed. The velocity of the water flow through the test

43、 specimen will need to be adjusted to ensure the water temperatures indicated in Table 3 are maintained. SAE INTERNATIONAL J1942 Reaffirmed JUN2014 Page 7 of 8 TABLE 3 - REQUIRED WATER TEMPERATURE FOR TEST Location(1)Temperature Temperature of Flowing Water at Point A 80 2 C Temperature of Flowing W

44、ater at Point B 85 C max Temperature of Flame Measured at Points C and D 800 50 C 1. Temperature measuring points are shown on Figure 3. NOTE: Any deviation in the working pressure or duration of the test shall be agreed on prior to the test. After the test specimen has returned to ambient temperatu

45、re it shall be subjected to the applicable proof pressure as specified by the hose/hose assembly standard or technical specification for a 2 minute duration. The test specimen is considered as passed when the test specimen remains tight (no leakage) when subjected to the proof pressure after the fla

46、me application. If the test specimen fails the proof pressure test after the flame application, the test will be repeated on two additional specimens of the same nominal diameter as the specimen that failed. If one of the specimens fails the repeat test, the hose assembly of the design presented wil

47、l be regarded as having failed. If the test specimens pass the test successfully, the hose assembly of the design presented for testing will be approved for the smallest up to the largest nominal diameter of the same design. 9. NON-SAE J517 HOSE/HOSE ASSEMBLIES Products not conforming to SAE J517 sh

48、all meet the following: a. Proof test per SAE J343. No leakage allowed. b. Change in length per SAE J343. Not to exceed +2 and 4% (does not apply to wire helix type hose). c. Burst test per SAE J343. Minimum burst shall be at least four times the maximum working pressure of the hose. d. Cold bend te

49、st per SAE J343. No cracking or leakage allowed. Testing to be done at the manufacturers minimum recommended temperature. e. Impulse test per SAE J343. Conduct test at 125% of maximum working pressure of the hose for 200 000 cycles at a fluid temperature of 100 C. No leakage or other malfunction is allowed. (Impulse not required on wire helix type hose). 10. INSPECTION TESTS The tests required in Table 1 shall