GB/T 15623.3-2022 English PDF

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GB/T 15623.3-2022: Hydraulic fluid power - Electrically modulated hydraulic control valves - Part 3: Test methods for pressure control valves
Status: Valid

GB/T 15623.3: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 15623.3-2022	699	Add to Cart	5 days	Hydraulic fluid power - Electrically modulated hydraulic control valves - Part 3: Test methods for pressure control valves	Valid
GB/T 15623.3-2012	RFQ	ASK	7 days	Hydraulic fluid power -- Electrically modulated hydraulic control valves -- Part 3: Test methods for pressure control valves	Obsolete

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GB/T 14034.1   GB/T 14041.4   GB/T 13871.5   GB/T 22107   GB/T 15622   GB/T 15623.1   

Basic data

Standard ID: GB/T 15623.3-2022 (GB/T15623.3-2022)
Description (Translated English): Hydraulic fluid power - Electrically modulated hydraulic control valves - Part 3: Test methods for pressure control valves
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J20
Classification of International Standard: 23.100.50
Word Count Estimation: 38,398
Date of Issue: 2022-10-14
Date of Implementation: 2022-10-12
Older Standard (superseded by this standard): GB/T 15623.3-2012
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 15623.3-2022: Hydraulic fluid power - Electrically modulated hydraulic control valves - Part 3: Test methods for pressure control valves

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Hydraulic fluid power -- Electrically modulated hydraulic control valves -- Part 3.Test methods for pressure control valves ICS 23.100.50 CCSJ20 National Standards of People's Republic of China Replacing GB/T 15623.3-2012 Hydraulic transmission electric modulation hydraulic control valve Part 3.Test methods for pressure control valves (ISO 10770-3.2020,MOD) Published on 2022-10-12 2022-10-12 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I Introduction III 1 Scope 1 2 Normative references 1 3 Terms, Definitions and Symbols 1 3.1 Terms and Definitions 1 3.2 Symbol 2 4 Standard test conditions 3 5 Test device 3 6 Accuracy6 6.1 Meter Accuracy 6 6.2 Dynamic range7 7 Electrical characteristics tests for valves without integrated amplifiers 7 7.1 General 7 7.2 Coil resistance 7 7.3 Coil Inductance (Optional) 7 7.4 Insulation resistance 8 8 Relief valve 8 8.1 Steady state test 8 8.2 Dynamic test 15 9 Pressure reducing valve 20 9.1 Steady state test 20 9.2 Dynamic test 26 10 Pressure pulse test 29 11 Results Expression 29 11.1 General 29 11.2 Test report 30 12 Annotation description 31 Appendix A (Informative) Test Implementation Guidelines 32 Reference 33

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document is the third part of GB/T 15623 "Hydraulic Transmission Electric Modulation Hydraulic Control Valve". GB/T 15623 has been released to the next part. --- Part 1.Test methods for four-way directional flow control valves; --- Part 2.Test methods for three-way directional flow control valves; --- Part 3.Test methods for pressure control valves. This document replaces GB/T 15623.3-2012 "Hydraulic Transmission Electric Modulation Hydraulic Control Valve Part 3.Pressure Control Valve Test Method Compared with GB/T 15623.3-2012, except for structural adjustment and editorial changes, the main technical changes are as follows. a) Changed the ambient temperature from "20°C ± 10°C" to "20°C ± 5°C" (see Table 2, Table 2 of the.2012 edition); b) Changed the way of citing dates in GB/T 3141 (see Table 2, 11.2.1, Table 2 and 11.2.1 of the.2012 edition); c) The requirements for the temperature of the test oil are deleted (see Table 2 of the.2012 edition); d) Changed the graphic symbols of components in Figure 1, Figure 2 and Figure 3 (see Chapter 5, Chapter 5 of the.2012 edition); e) Changed the compliance standard of the meter accuracy, from "JB/T 7033-2007" to "ISO 9110-1"; changed the meter accuracy Requirements for temperature in the.2012 edition (see 6.1, 6.1 of the.2012 edition); f) Changed the holding time of the withstand voltage test from "5min" to "30s" (see 8.1.2.2, 8.1.2.3, 9.1.2.2 and 9.1.2.3,.2012 year editions 8.1.2.2, 8.1.2.3, 9.1.2.2 and 9.1.2.3); g) Change "the volume of the pressure chamber should not be greater than 1.5% of the rated flow of oil" to "the volume of the controlled pressure should be less than the rated flow" 1.5% of the volume of oil” (see 8.2.2, 9.2.2, 8.2.2, 9.2.2 of the.2012 edition); h) The action characteristic curves of relief valve and pressure reducing valve are added (see Figure 10 and Figure 14). This document is modified to adopt ISO 10770-3.2020 "Hydraulic Transmission Electrically Modulated Hydraulic Control Valves - Part 3.Pressure Control Valve Tests" method". The technical differences between this document and ISO 10770-3.2020 and their reasons are as follows. --- Increased the scope of application (see Chapter 1) to adapt to the technical conditions of our country; --- Added the term and definition "threshold" (see Chapter 3) to adapt to our country's technical conditions; --- Replaced ISO 5598 (see 3.1) with the normatively cited GB/T 17446 to adapt to my country's technical conditions and improve operability action; --- Added normative references GB/T 786.1, GB/T 4728.1 (see 3.2) to adapt to my country's technical conditions and improve operability action; --- Replaced ISO 3448.1992 with the normatively cited GB/T 3141 (see Table 2, 11.2.1) to adapt to my country's technical conditions, improve operability; --- Replaced ISO 6743-4 (see Table 2) with the normatively cited GB/T 7631.2 to adapt to my country's technical conditions and improve operability action; --- Replaced ISO 4406 with the normatively cited GB/T 14039 (see Table 2) to adapt to my country's technical conditions and improve operability. action; --- Changed the way of citing the date of ISO 9110-1 (see 6.1) to adapt to my country's technical conditions and improve operability; --- Replaced ISO 10771-1 (see Chapter 10) with the normatively cited GB/T 19934.1 to adapt to my country's technical conditions, improve High operability. The following editorial changes have been made to this document. --- Deleted the equivalent unit of pressure "(bar)". Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed by China Machinery Industry Federation. This document is under the jurisdiction of the National Hydraulic Pneumatic Standardization Technical Committee (SAC/TC3). This document is drafted by. Youweili Hydraulic Technology Co., Ltd., Zhejiang University, Xiamen University, Ningbo Huaye Machinery Manufacturing Co., Ltd. Company, Ningbo City Product and Food Quality Inspection Institute (Ningbo Fiber Inspection Institute), Zhejiang Haihong Hydraulic Technology Co., Ltd., Tianjin Hengchuang Hydraulic Parts Co., Ltd., Shanghai Hengtuo Hydraulic Control Technology Co., Ltd., Beijing Tianli Yide Industry and Trade Co., Ltd., Ningbo Yuzhou Hydraulic Equipment Co., Ltd. Co., Ltd., Dongying Tongbo Petroleum Electronic Instrument Co., Ltd., Beijing Machinery Industry Automation Research Institute Co., Ltd. The main drafters of this document. Lin Guang, Xu Bing, Ye Shaoqian, Zhang Ce, Zheng Zhijian, He Xianjian, Zhou Weike, Fang Qun, Pang Fanjie, Lu Bingjian, Chen Hongshuai, Cao Qiaohui, Luo Jing. The previous versions of this document and its superseded documents are as follows. ---First published in.2012 as GB/T 15623.3-2012; ---This is the first revision.

Introduction

GB/T 15623 aims to standardize the test methods for the performance of electrically modulated hydraulic control valves, and consists of three parts. --- Part 1.Test methods for four-way directional flow control valves. The purpose is to determine the four-port proportional, servo-type directional flow control valve performance able test method. --- Part 2.Test methods for three-way directional flow control valves. The purpose is to determine the three-port ratio, servo-type directional flow control valve performance able test method. --- Part 3.Test methods for pressure control valves. The purpose is to determine a test method for the performance of proportional, servo-type relief and pressure reducing valves. This document describes the test methods for electrically modulated relief valves and pressure reducing valves. The function of these types of electrically modulated pressure control valves is determined by setting electrical signals to regulate pressure. The overflow valve is used to control the pressure value in the closed cavity. When the pressure exceeds the set pressure, the pressure is reduced by overflowing the excess flow. Spilled flow is drained directly back to the tank. The pressure reducing valve is used to control the pressure value in the closed cavity. When the pressure exceeds the set pressure, it reduces the pressure by restricting the inflow flow. The design of the system and the location of the valve in the circuit determine the choice of valve type. The purpose of this document is to improve the standardization of valve testing and, in turn, the consistency of recorded valve performance data so that these data Used in system design without having to consider the source of the data. Hydraulic transmission electric modulation hydraulic control valve Part 3.Test methods for pressure control valves

1 Scope

This document describes a test method for the performance characteristics of electrically modulated hydraulic pressure control valves. This document applies to the electric modulation relief valve (hereinafter referred to as "relief valve"), electric modulation pressure reducing valve (hereinafter referred to as "reduction valve") for general hydraulic equipment pressure valve”).

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. GB/T 786.1 Graphical symbols and circuit diagrams of fluid transmission systems and components - Part 1.Graphical symbols (GB/T 786.1- 2021, ISO 1219-1.2012, IDT) GB/T 3141 ISO Viscosity Classification of Industrial Liquid Lubricants (GB/T 3141-1994, eqvISO 3448.1992) GB/T 4728.1 Graphical Symbols for Electrical Diagrams Part 1.General Requirements (GB/T 4728.1-2018, IEC 60617 database, MOD) GB/T 7631.2 Classification of Lubricants, Industrial Oils and Related Products (Class L) Part 2.Group H (Hydraulic Systems) (GB/T 7631.2-2003, ISO 6743-4.1999, IDT) GB/T 14039 Hydraulic Transmission Fluid Solid Particle Pollution Level Code (GB/T 14039-2002, ISO 4406.1999, MOD) GB/T 17446 Vocabulary of Fluid Transmission Systems and Components (GB/T 17446-2012, ISO 5598.2008, IDT) GB/T 19934.1 Fatigue pressure test of hydraulic transmission metal pressure-bearing housing-Part 1.Test method (GB/T 19934.1-2021, ISO 10771-1.2015, IDT) 3 Terms, Definitions and Symbols 3.1 Terms and Definitions GB/T 17446 as well as the following terms and definitions apply to this document. 3.1.1 A hydraulic valve that proportionally controls the pressure in a system in response to a continuously varying electrical input signal. 3.1.2 An electrically modulated pressure control valve that limits inlet pressure by outlet discharge or return flow to tank. ......

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