1、BRITISH STANDARDBS ISO 4548-9:2008Methods of test for full-flow lubricating oil filters for internal combustion engines Part 9: Inlet and outlet anti-drain valve testsICS 27.020g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54
2、g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS ISO 4548-9:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 May 2008 BSI 2008ISBN 978 0 580 61280 0National forewordThis British Standard is the UK implemen
3、tation of ISO 4548-9:2008. It supersedes BS 7403-9:1995 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee MCE/21, Filters for gases and liquids, to Subcommittee MCE/21/5, Filters for lubricating oil.A list of organizations represented on this committee c
4、an be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since pu
5、blicationDate CommentsReference numberISO 4548-9:2008(E)INTERNATIONAL STANDARD ISO4548-9Second edition2008-02-01Methods of test for full-flow lubricating oil filters for internal combustion engines Part 9: Inlet and outlet anti-drain valve tests Mthodes dessai des filtres huile de lubrification pass
6、age intgral pour moteurs combustion interne Partie 9: Essais des clapets antiretours aval et amont BS ISO 4548-9:2008ii iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Principle. 1 4.1 Inlet and anti-drain valve 1 4.2 Outlet anti-drain
7、valve 1 5 Test rigs . 1 6 Test liquid 2 7 Test liquid 2 7.1 General. 2 7.2 Inlet anti-drain valve Test A: Basic performance test 2 7.3 Inlet anti-drain valve Test B: Basic and supplementary performance test 3 7.4 Outlet anti-drain valve Test A: Basic performance test . 4 7.5 Outlet anti-drain valve
8、Test B: Basic and supplementary performance test. 5 8 Test report . 6 Bibliography . 10 BS ISO 4548-9:2008iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is
9、normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part
10、in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to pre
11、pare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that
12、some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 4548-9 was prepared by Technical Committee ISO/TC 70, Internal combustion engines, Subcommittee SC 7, Tests for lubricating oil filters. Thi
13、s second edition cancels and replaces the first edition (ISO 4548-9:1995), of which it constitutes a minor revision. ISO 4548 consists of the following parts, under the general title Methods of test for full-flow lubricating oil filters for internal combustion engines: Part 1: Differential pressure/
14、flow characteristics Part 2: Element by-pass valve characteristics Part 3: Resistance to high differential pressure and to elevated temperature Part 4: Initial particle retention efficiency, life and cumulative efficiency (gravimetric method) Part 5: Cold start simulation and hydraulic pulse durabil
15、ity test Part 6: Static burst pressure test Part 7: Vibration fatigue test Part 9: Inlet and outlet anti-drain valve tests Part 11: Self-cleaning filters Part 12: Filtration efficiency using particle counting, and contaminant retention capacity BS ISO 4548-9:2008vIntroduction The ISO 4548 series est
16、ablishes standard test procedures for measuring and performance of full-flow lubricating oil filters for internal combustion engines. It has been prepared in separate parts, each part relating to a particular performance characteristic. Together the tests provide the information necessary to assess
17、the characteristics of a filter, but if agreed between the purchaser and the manufacturer, the tests can be conducted separately. BS ISO 4548-9:2008blank1Methods of test for full-flow lubricating oil filters for internal combustion engines Part 9: Inlet and outlet anti-drain valve tests 1 Scope This
18、 part of ISO 4548 specifies methods of measuring the effectiveness of either inlet or outlet anti-drain valves if fitted to a full-flow lubricating oil filter of the “spin-on” or “easy change” type, for internal combustion engines. 2 Normative references The following referenced documents are indisp
19、ensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 4548-1, Methods of test for full-flow lubricating oil filters for internal combustion engi
20、nes Part 1: Differential pressure/flow characteristics 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 4548-1 apply. 4 Principle 4.1 Inlet and anti-drain valve Assessment of the capability of the inlet anti-drain valve to prevent oil contained in the
21、 filter from draining out of the inlet when the engine is stopped. 4.2 Outlet anti-drain valve Assessment of the capability of the outlet anti-drain valve to prevent oil contained in the filter from draining out the outlet when the engine is stopped. 5 Test rigs Suggested test rigs are shown diagram
22、matically in Figures 1 to 3. Figures 1 and 2 are simplified rigs for basic tests. Figure 3 is a more complicated rig involving the means to raise and lower the header tank at a fixed speed of 0,5 m/min between a 0 mm and a 1 500 mm head from the test block. This shall be used only if opening pressur
23、es and flow/pressure drop data are required. BS ISO 4548-9:20082 NOTE Graphical symbols used in Figures 1 to 3 are in accordance with ISO 1219-11. The test rig shall comprise the following components together with necessary tubing, connectors and supports: a) oil reservoir; b) pump (vane type recomm
24、ended); c) screen filter; d) stopcocks (see Figures 1 to 3); e) 3-way valves (see Figures 1 to 3); f) test mounting block; g) header tank (e.g. a separating funnel); h) measuring cylinders; i) stopwatch or clock (not shown). If it is required to carry out all tests specified in this part of ISO 4548
25、, then a single test rig incorporating the features of Figures 1 to 3 may be used. 6 Test liquid The test liquid shall be mineral oil that has a kinematic viscosity1)of 8 mm2/s 2 mm2/sat 20 C (viscosity class ISO VG 52). 7 Test liquid 7.1 General Two test procedures for both inlet and outlet anti-dr
26、ain valves are described. Test A covers the essential basic performance of the valve in terms of its function as an anti-drain feature. Test B covers the basic performance test and additional procedures suggested to ascertain supplementary performance data which may be required. 7.2 Inlet anti-drain
27、 valve Test A: Basic performance test 7.2.1 An example of the apparatus required for this test is shown in Figure 1. The individual elements of Figure 1, where referenced in 7.2.2 to 7.2.13 by number, are given in bold typeface inside parentheses. 7.2.2 If the filter incorporates an outlet anti-drai
28、n valve then, prior to testing, this valve should be locked open by a suitable means, to permit entry of oil on the outlet side of the filter. 7.2.3 Carry out the test at an ambient temperature of 25 C 5 C. 7.2.4 Fit the test mounting block (6) into the test right in an inverted position (i.e. 180 f
29、rom the position shown in Figure 1). 1) 1 mm2/s = 1 cSt. BS ISO 4548-9:200837.2.5 Assemble the filter to be tested on the mounting block using a suitable gasket to prevent leakage through the thread. If the object of this test is to assess the performance of the valve only and not the integrity of t
30、he filter assembly as a whole, the potential leak path between the threaded mounting plate and the gasket retainer should also be sealed off. 7.2.6 Open the inlet cock (4) to the filter and the outlet cock (8) in the base of the header tank (9). 7.2.7 Pump test liquid into the system until all air i
31、s expelled and a 600 mm 10 mm head is obtained above the base of the filter, then close the inlet cock (4) and the outlet cock (8) in the base of the header tank (9). NOTE The filter is installed in the position described in order to achieve a more complete expulsion of air. 7.2.8 Disconnect the inl
32、et pipe at the base of the filter and turn the filter through 180, into the position shown in Figure 1. 7.2.9 Open the outlet cock (8) at the base of the header tank (9) and remove the bleed screw (5) from the test mounting block. Leave for 5 min to drain surplus test liquid from the test mounting b
33、lock. 7.2.10 Replace the bleed screw and place a suitable measuring cylinder (10) beneath the outlet pipe (11), and start the stopwatch. 7.2.11 Leave for a test time of 1 h, then measure the amount of test liquid that leaked from the filter during this period. 7.2.12 Maintain the level of test liqui
34、d contained in the header tank (9) at 600 mm 10 mm. 7.2.13 Record the results (see Clause 8). 7.3 Inlet anti-drain valve Test B: Basic and supplementary performance test 7.3.1 An example of the apparatus required for Test B is shown in Figure 3. The individual elements of Figure 3, where referenced
35、in 7.3.2 to 7.3.20 by number, are given in bold typeface inside parentheses. 7.3.2 This test may be used if flow/pressure drop and opening pressure are required. If necessary, repeat the test for the following conditions: a) with the filter in a position other than vertical (at an angle agreed betwe
36、en the purchaser and the manufacturer); b) after submitting the filter to an ageing test in accordance with ISO 4548-33in vertical and inclined positions. 7.3.3 Carry out the test at a temperature of 25 C 5 C. 7.3.4 Fit the test mounting block (8) into the test rig in an inverted position i.e. 180 f
37、rom the test position shown in Figure 3. 7.3.5 Assemble the filter to be tested on the mounting block using a suitable gasket to prevent leakage through the thread. 7.3.6 Open the inlet cock (4) and the outlet cock (11). Set 3-way valves (5), (6) and (10) to permit oil flow through the filter and re
38、turn via the header tank (12). 7.3.7 Start the pump (2) and adjust the inlet cock (4) to allow oil through the filter at sufficient flow rate to open the anti-drain valve and flow until oil is free from air bubbles. BS ISO 4548-9:20084 If the object of this test is to assess the performance of the v
39、alve only and not the integrity of the filter assembly as a whole, the potential leak path between the threaded mounting plate and the gasket retainer should also be sealed off. 7.3.8 Stop the pump (2) and close cocks (4) and (11) and adjust valve (6) such that the inlet to the mounting block is clo
40、sed. 7.3.9 Adjust the position of the header tank (12) to obtain a 600 mm 10 mm head, or such head as may be otherwise specified. Turn the filter through 180, into the position shown in Figure 3. Adjust valve (5) to supply oil to the header tank only, open the inlet cock (4) and start the pump to ma
41、intain the oil level in the header tank. 7.3.10 Open cocks (11) and (13). Drain the oil down-stream of the inlet anti-drain valve into a suitable container not (15) and leave for 5 min to drain surplus test liquid from the mounting block. 7.3.11 Place the measuring cylinder (15) under the line from
42、drain cock (13) and simultaneously start the stopwatch. 7.3.12 Allow to drain for 1 h into the measuring cylinder (15) then measure the quantity of oil leaked through the inlet anti-drain valve during this period. 7.3.13 Close drain cock (13) and record the results (see Clause 8). 7.3.14 Lower the h
43、eader tank (12) to reduce the head to approximately zero. 7.3.15 Adjust valves (10) and (6) such that flow from the header tank is diverted to the inlet of the mounting block. 7.3.16 Open drain cock (14) and allow to drain for 5 min into a suitable container not (16). 7.3.17 Progressively raise the
44、header tank until flow is seen at the drain cock (14) indicating that the inlet anti-drain valve is opening. Note the head at that point. Reduce the head again to valve closure. Place a clean measuring cylinder (16) in position. 7.3.18 Raise the header tank at a rate of 0,5 m/min, increasing the hea
45、d until the observed valve opening pressure is reached, indicated by flow commencing through the drain cock (14). Record the head at that point. 7.3.19 Raise the header tank to the next 100 mm point at a rate of 0,5 m/min. Allow the flow to stabilize for 2 min. Place a clean measuring cylinder (16)
46、under drain cock (14) and simultaneously start the stopwatch and measure the flow rate. Repeat the procedure after each 100 mm increase in head up to 1 500 mm. 7.3.20 Plot a curve of flow rate versus head. Derive the valve opening pressure from this curve at the flow rate of 0,05 l/min. 7.4 Outlet a
47、nti-drain valve Test A: Basic performance test 7.4.1 An example of the apparatus required for this test is shown in Figure 2. The individual elements of Figure 2, where referenced in 7.4.2 to 7.4.11 by number, are given in bold typeface inside parentheses. If the filter incorporates an inlet anti-dr
48、ain valve then, prior to testing, this valve should be locked open by a suitable means, to permit entry of oil on the inlet side of the filter. 7.4.2 Carry out the procedures described in 7.2.3 to 7.2.5. 7.4.3 Close the outlet cock (7), open the inlet cock (4) and the drain cock (10), and start the
49、pump (2). Let oil flow through the filter until all air is expelled. BS ISO 4548-9:20085If the object of this test is to assess the performance of the valve only and not the integrity of the filter assembly as a whole, the potential leak path between the threaded mounting plate and the gasket retainer should also be sealed off. 7.4.4 Close the drain cock (10) and turn the filter through 180, into the position shown in Figure 2. 7.4.5 Open the outlet cock (7) to fill the header tank (8) to a head of 150 mm 10
