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    SAE J 3096-2016 Cooling System Non-Metallic Caps and Filler Necks - Threaded Construction.pdf

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    SAE J 3096-2016 Cooling System Non-Metallic Caps and Filler Necks - Threaded Construction.pdf

    1、_ 6$(7HFKQLFDO6WDQGDUGV%RDUG5XOHVSURYLGHWKDW7KLVUHSRUWLVSX EOLVKHGE6$(WRDGYDQFHWKHVWDWHRIWHFKQLFDO 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 therefrom, LVWKHVROHUHVSR

    2、QVLELOLWRIWKHXVHU 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 2016 SAE International All rights reserved. No part of this publication may be reproduced,

    3、 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 USA) Fax: 724-776-

    4、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:/standards.sae.org/J3096_201611 SURFACE VEHICLE RECOMMENDED PRACTICE J3096 NOV2016 Issued 2016-11 Cooling System Non-Metallic Caps and Filler N

    5、ecks Threaded Construction RATIONALE To provide a Recommended Practice for the construction details for Non-Metallic Cooling System Caps (used on Radiators and Surge Tanks) having a threaded (not cam-lock) construction and the required filler neck geometry. This Recommended Practice is a companion t

    6、o SAE J164 Radiator Caps and Filler Necks which is an SAE Standard that covers only caps having a metallic material and utilizing a cam-lock (also known as bayonet) construction for installation and removal. 1. SCOPE This SAE Recommended Practice was developed primarily for passenger car and truck a

    7、pplication, but may be used in marine, industrial, and similar applications. It addresses Non-Metallic caps and both Metallic and Non-Metallic filler necks. 1.1 Description This SAE Recommended Practice specifies requirements for Cooling System Caps (used for Radiator and Surge Tank Fill and Pressur

    8、e Relief) having a plastic material construction with threaded attachment. The document includes the corresponding geometry definition for both plastic and metallic filler necks. The primary focus is to assure sealing and thread compatibility between the cap and filler neck while fulfilling requirem

    9、ents of SAE J151 Pressure Relief for Cooling Systems. It should be noted that although this is a common design, there are others used in the industry that are not depicted within this document. 2. REFERENCES 2.1 Applicable Document The following publication forms a part of this specification to the

    10、extent specified herein. Unless otherwise indicated, the latest issue of SAE publications shall apply. 2.1.1 SAE Publication Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. S

    11、AE J164 Radiator Caps and Filler Necks SAE INTERNATIONAL J3096 NOV2016 Page 2 of 7 3. DEFINITIONS 3.1 COOLING SYSTEM CAP Herein referred to as cap, means a device which closes the opening used to add coolant to the pressure section of the engine cooling system. 3.2 COOLING SYSTEM FILLER NECK The Fil

    12、ler Neck (Also Radiator, Surge Tank or Remote Fill or Filler Neck) is the area to which the cap mates or attaches. Proper function is assured when the dimensional requirements for both the cap and filler neck are met. 3.3 LEGIBLE This means readable under daylight lighting conditions by an observer

    13、with normal vision whose eye point is located in proximity to the marked surface. 4. APPLICATION This document applies to passenger cars, multipurpose passenger vehicles, trucks, chassis cabs, buses, construction vehicles, and to equipment produced for motor vehicles manufactured after the effective

    14、 date of this document. 5. REQUIREMENTS 5.1 Pressure relief which is actuated without operator action for the purpose of limiting peak pressures in the cooling system should be accomplished in a manner which limits, to the extent practicable, the risk of injury. Pressure relief which is actuated by

    15、the operator for the purpose of safe removal of the cap must conform to 5.2 or 5.3, except as provided in 5.4. 5.2 Pressure release mechanism incorporated in the cap and/or filler neck shall conform to one of the following: 5.2.1 If pressure relief can be accomplished by cap rotation, one of the fol

    16、lowing mechanisms must be incorporated to prevent cap removal prior to pressure relief. 5.2.1.1 Either mechanical stop that prevents cap removal by rotation only, requiring the cap to be moved axially and further rotated, for removal. 5.2.1.2 Or a design which requires that the cap be rotated at lea

    17、st 1 turn before pressure starts to release and at least an additional 1 and 1/2 turns before the cap can be removed. 5.2.2 If pressure relief is accomplished through other than cap rotation, a means shall be provided to prevent removal of the cap before the pressure relief is actuated. 5.3 Pressure

    18、 release mechanism not incorporated in the cap and/or filler neck shall have legibly and permanently marked on or adjacent to the cap instructions for relief of system pressure prior to cap removal. 5.4 “Sealed cooling system“ which the manufacturer recommends servicing at stated intervals and which

    19、 does not meet the requirements of 5.2 and 5.3 shall require use of a tool to accomplish cap removal. The words “Do Not Remove - See Manufacturers Instructions“ shall be legibly and durably marked on or immediately adjacent to the cap. 5.5 The cap assembly shall be legibly and durably marked with it

    20、s normal pressure rating and notation “Warning Do Not Remove Hot.“ Manufacturers may also elect to use ISO symbols to replace the verbiage, thus avoiding issues with language. SAE INTERNATIONAL J3096 NOV2016 Page 3 of 7 5.6 Cap Functional Overview The area between the 2 O-Rings is open to the atmosp

    21、here. This passage may be connected to either a surge tank overflow fitting or a radiator fitting which connects to the Overflow bottle. As the cap is rotated OFF, pressure is relieved thru this passage. Likewise, when cap pressure is exceeded, the pressure is relieved by lifting the PRESSURE RELIEF

    22、 VALVE off of its seal. Fluid (coolant or air) return occurs during cool down as negative pressure lifts the VACUUM VALVE off its sealing surface, allowing fluid to be drawn from either the atmosphere or the overflow bottle, back into the cooling system. Figure 1 - Section view of typical pressure c

    23、ap SAE INTERNATIONAL J3096 NOV2016 Page 4 of 7 5.7 Cap Thread and Sealing Details for Filler Neck Compatibility Figure 2 - Pressure cap thread and sealing details SAE INTERNATIONAL J3096 NOV2016 Page 5 of 7 5.8 Filler Neck Details Plastic Type Note that various plastic material types are used in the

    24、 industry and that their material properties and dimensional stability must also be considered such as temperature, pressure, chemical and UV resistance, etc. Figure 3 - Filler neck details plastic type SAE INTERNATIONAL J3096 NOV2016 Page 6 of 7 5.9 Filler Neck Details Metal Type Figure 4 - Filler

    25、neck details metal type SAE INTERNATIONAL J3096 NOV2016 Page 7 of 7 5.10 Filler Neck Detailed Views Plastic and Metal Type Figure 5 - Filler neck details B, C, D 6. NOTES 6.1 Revision Indicator A change bar (l) located in the left margin is for the convenience of the user in locating areas where tec

    26、hnical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE COOLING SYSTEMS STANDARDS COMMITTEE


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