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1、UDC 621.646.4-837.001.4 JIS JAPANESE INDUSTRIAL STANDARD a , a Test Methods for Electro-hydraulic Proportional Pressure Relief Valves JIS B 8651-1989 Translated and Published by Japanese Standards Association Printed in Japan 13s Copyright Japanese Standards Association Provided by IHS under license
2、 with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:52:29 MDTNo reproduction or networking permitted without license from IHS -,-,- In the event of any doubt arising, the original Standard in Japanese is to be final authority. Copyright Japanese Standards Asso
3、ciation Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:52:29 MDTNo reproduction or networking permitted without license from IHS -,-,- o O o -0 o JIS B*Bb5L 89 W 4933608 0023743 9 UDC 621.646.4-837.001.4 JAPANESE INDUSTRIAL ST
4、ANDARD J I S Test Methods for Electro-hydraulic Proportional B 8651-1989 - Pressure Relief Valves 1 Scope This Japanese Industrial Standard specifies the test methods to confirm the rated capacity or perf ormance of the electro-hydraulic proportional pressure relief valves. Remark: The units and num
5、erical values given in in accordance with traditional system of units and are the imforma- tive reference values. in this Standard are Further, the conversion factor shall be as follows: 1 MPa (= 10.197 kgf/cm2) k 10 kgf/cmZ 2. Definitions For the purpose of this Standard, the following definitions
6、apply. Other terms and definitions are given in JIS B 0142. electro-hydraulic proportional pressure relief valve to control the pressure proportional to electric analog input signal. The relief valve able pressure adjusting range Range of adjustable pressure. This changes according to conditions suc
7、h as flow rate, oil temperature, etc. lowest adjustable pressure This changes according to conditions such as flow rate, oil temperature, The lowest value of adjustable pressure. etc, dead zone signal increases from zero. Range in which the output does not change when the input Indicate by the value
8、 of input signal. repeatubility repeatedly under the state in which the working conditions such as oil temperature, etc. are constant. Represent the maximum of dispersion by the measured value itself or percentage to the maximum control flow rate or highest working pressure. Dispersion of output whe
9、n the same set input signal is applied minimum relief flow rate which the relief valve is able to work stably. to the conditions such as set pressure, oil temperature, load capacity, etc. Minimum flow rate to the return port under This changes according load capacity connected directly with apparatu
10、s, Hydraulic oil volume of working oil including the piping .Applicable Standards: See page 21. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:52:29 MDTNo reproduction or networking per
11、mitted without license from IHS -,-,- _ J I S B*8651 87 W 4733608 0023744 O 2 B 8651-1989 solenoid to input electric current. Electro-mechanical transducer generating the force proportional permissible back pressure The highest pressure not to break even if it is applied continuously or repeatedly t
12、o the return side of apparatus and the back of pressure working face. - input signal output. Effective signal to the valve or amplifier to cause the defined absolute precision not the precision to the measuring range. Precisin to the reading of measured value itself but resolution of valve output at
13、 defined signal level. at the time of maximum control flow rate or the percentage of input signal at the time of highest working pressure. as least signal necessary to increase or decrease the valve output. the case where these signals are different, it is preferable to use the value larger of the t
14、wo. Changed portion of input signal necessary to generate the change Represent by the input signal Define the resolution ordinarily In supply flow rate device or system. Quantity of fluid flowing through the supply port of internal leakage Flow in the lumen clearance of device. external leakage To l
15、eak from the inside of device to outer air. 3. Classification of Tests The test shall be the type test in all. Remark: The delivery test shall be agreed between the parties concerned with delivery basing on this Standard. 4 . Test Items 4.1 Solenoid Test The solenoid test shall be on the following i
16、tems: (1) Test of insulation resistance and withstand voltage. (2) Coil resistance test (3) Temperature rise test 4.2 Static Characteristic Test The static characteristic test shall be on the following items: (1) Test of characteristic for control pressure against input signal. (2) Resolution test (
17、3) Test of characteristic for control pressure change against flow rate change (4) Repeatability test /-I- - Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:52:29 MDTNo reproduction or n
18、etworking permitted without license from IHS -,-,- J I S B*Bb5L 89 E 4933b08 0023745 2 I 3 B 8651-1989 (5) Pressure drop characteristic test (6) Test of characteristic for control pressure change against oil temperature change (7) Internal leakage test (8) External leakage test (9) Minimum relief fl
19、ow rate characteristic test (10) Guaranteed proof pressure test ( 11 ) Control pressure pulsation characteristic test (12) Test of characteristic for control pressure change against flow ra-e change in safety valve 4.3 Dynamic Characteristic Test The dynamic characteristic test shall be on the follo
20、wing items. (1) Step response test (2) Frequency response test 4 . 4 items. Environmental Test The environmental test shall be on the following ( 1 ) Vibration resistance test (2) Test of moisture resistance and water resistance 5. Test Conditions and Tolerances of Measurements 5.1 Test Conditions T
21、he test conditions shall be as follows: (1) Classification of Working Oils Class 2 of JIS K 2213 corresponding to IS0 VG 46. (2) Oil Temperature 50 5 5C (3) Contamination Level When the size and number of grains of pollutants in 0.1 1 of working oil are divided to classify into grades as given in Ta
22、ble, it shall be in the range of 9 to 11 grades. Table. Divisions of Contamination Level Grade 12 1 024 O00 182 O00 32 400 5 760 1 024 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:52:
23、29 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S BU865L 89 4933608 0023746 4 4 B 8651-1989 (4) Mounting Orientation In the case specially indicated, this shall comply with the conditions defined by agreement between the parties concerned with delivery. (5) Input Sig
24、nal The input signal (electric current, voltage, dither, etc.) shall comply with conditions defined for each specimen valve. (6) Test Pressure Tolerances of test flow rate and input signal. (a) Test Pressure t 2.5 % However, the minimum value shall be 0.1 MPa 1 kgf /cm 2). Test Flow Rate 2 5 % (c) I
25、nput Signal i 1 % However, the minimum value shall be 0.1 % of input signal for highest working pressure. 5.2 Tolerances of Measurements The tolerances of measurements shall be as follows: (1) Pressure t 2.5 % absolute precision. However, the minimum value shall be 0.1 MPa (1 kgf/cm2). (2) Flow Rate
26、 t 2.5 % static absolute precision. However, the minimum value shall be 1 % of rated flow rate. (3) Temperature t 2 “C (4) Input Signal 2 2.5 % absolute precision (5) Electric Resistance 2 2.5 % absolute precision 6. Test Devices and Test Methods 6.1 Solenoid Test 6.1.1 Test of Insulation Resistance
27、 and Withstand Voltage The test of insulation resistance and withstand voltage does not need to apply the hydraulic oil pressure for specimen valve, but in the specimen valve structured so that the internal electric part (solenoid) contacts with working oil, it shall be conducted under the state whe
28、re the specimen valve has been falled with working oil as follows: (1) Apply AC 1500 V (commercial frequency) between either one of electric input terminals of specimen valve and the specimen valve body by a voltage withstand tester for 60 sec and confirm that the leakage current is 1 mA or under. (
29、2) Measure the insulation resistance in the connection same as in the procedure of (1) with using DC 500 V insulation resistance tester. The insulation resistance is desirable to be 100 Ma or over. (3) In the two coil type solenoid, conduct this test between two coils mutually. e Copyright Japanese
30、Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:52:29 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS B* L c, O P E O a : U id L c, a, (o 4 m C . , i c u) 3 *-i V (o a , c, (o
31、 L 1 O 4 U - I n a, (o m m 2 f 3 u) u) a - e a, 3 (o m m 2 f 3 u) u) a - a a, m (o m 3 2 f 3 u) u) a - 0 a, 4 (o a, a, K Y- . , i 4 - M 8 . , i c (o C id u) a, m n - L a, n 5 z L a, CI a , E O a, t- E - r- ! 2 4 (o Q O w v) - .- c 1 L a, V C . , i 4 t U U C .d L 3 u) E ; - u) a, U 3 (o U f ! f 3 u)
32、u) a - a3 1 a, 3 (o m m t! 2 3 u) u) a - a a, 0 Y- . , i rl 4 a , a, cc - M C O . , i w C . , i u) a, (o m n - L a, E 3 z n L a, c a, E O a, L I - e - P a, (o a O c v) 4 - c c L c, a, a, E o rl U - O c o bil . d Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=
33、IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:52:29 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*:8653 89 4933Ca8A 8023763 O I 19 B 8651-1989 5 4 m O K irl c u) a *? U m a, W E ! 8 4 LL - In L O W o a, c a, i3 t! t! a a u) u) - u) % t!
34、 E a a m O S u) u) - o CI O E o .A L W ao EO Z W - h l h 3 m a E t! a a u) u) - 03 .rl c m C O id u) a, n - L a, E 3 z n L a, CI a, E O a, L E - r- Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/1
35、5/2007 20:52:29 MDTNo reproduction or networking permitted without license from IHS -,-,- - _ _ _ _ _ _ J I S B*8bSL 89 4933b08 8023762 2 W 20 B 8651-1989 a, C m I 8 id c (o . , - I 4 .rl n (o c u) w 1 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employ
36、ees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:52:29 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S B*8b5L 89 4933bQ8 Q237b3 4 21. B 8651-1989 Applicable Standards: JIS B 0142-Glossary of Terms for Oil Hydraulics and Pneumatics JIS D 0203-Method of M
37、oisture, Rain and Spray Test for Automobile Parts JIS D 1601-Vibration Testing Method for Automobile Parts JIS K 2213-Turbine Oils Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:52:29 M
38、DTNo reproduction or networking permitted without license from IHS -,-,- JIS B*865L 87 4733608 0023764 6 0 B 8651-1989 Edition 1 Japanese Text Established by Minister of International Trade and Industry Date of Establishment: 1989-12-01 Date of Public Notice in Official Gazette: 1989-12-11 Investiga
39、ted by: Japanese Industrial Standards Committee Divisional Council on Factory Automotion This English translation is published by: Japanese Standards Association 1-24, Akasaka 4, Minato-ku, Tokyo 107 Japan O JSA, 1990 Printed in Tokyo by Hohbunsha Co., Ltd. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 20:52:29 MDTNo reproduction or networking permitted without license from IHS -,-,-