GB/T 8100.2-2021 English PDF

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GB/T 8100.2-2021: Mounting surfaces of hydraulic valves - Part 2: Compensated flow-control valves
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 8100.2-2021	419	Add to Cart	4 days	Mounting surfaces of hydraulic valves - Part 2: Compensated flow-control valves	Valid

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Basic data

Standard ID: GB/T 8100.2-2021 (GB/T8100.2-2021)
Description (Translated English): Mounting surfaces of hydraulic valves - Part 2: Compensated flow-control valves
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J20
Word Count Estimation: 22,269
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 8100.2-2021: Mounting surfaces of hydraulic valves - Part 2: Compensated flow-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.
Mounting surfaces of hydraulic valves -- Part 2: Compensated flow-control valves ICS 23:100:50 CCSJ20 National Standards of People's Republic of China Replacing GB/T 8098-2003 Hydraulic valve mounting surface part 2: speed regulating valve (ISO 6263:2013, Hydraulicfluidpower-Compensatedflow-control Published on 2021-12-31 2022-07-01 Implementation State Administration for Market Regulation Released by the National Standardization Administration directory Preface I Introduction II 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Symbol 1 5 Tolerance 1 6 size 2 7 Port mark 2 8 Stacking valve 2 9 Maximum working pressure 2 10 Annotation Description 3

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 part 2 of GB/T 8100 "Hydraulic Valve Mounting Surface": GB/T 8100 has released the following parts: --- Part 2: Speed control valve; --- Part 3: Pressure reducing valves, sequence valves, unloading valves, throttle valves and check valves: This document replaces GB/T 8098-2003 "Hydraulic Transmission Belt Compensated Flow Control Valve Mounting Surface", which is the same as GB/T 8098-2003 Compared to this, the main technical changes are as follows: --- Changed normative references (see Chapter 2, Chapter 2 of the:2003 edition); --- Delete the mounting surface with the main port diameter of 28:4mm (see 6:10, 6:11, 7:10, 7:11, Figure 9, Figure 10, Table:2003 17~Table 20); --- Changed the graphic symbols of the speed control valve (see Table 2, Table 4, Table 6, Table 8, Table 10, Table 12, Table 14, Table 16); --- Deleted Appendix A (see Appendix A of the:2003 edition): This document is modified to adopt ISO 6263:2013 "Hydraulic Transmission Belt Compensated Flow Control Valve Mounting Surface": The technical differences between this document and ISO 6263:2013 and their reasons are as follows: --- Regarding normative reference documents, this document has made adjustments with technical differences to adapt to the technical conditions of our country and the circumstances of the adjustment: The situation is reflected in Chapter 2 "Normative References", and the specific adjustments are as follows: ● Replace ISO 1219-1 (see 4:2) with GB/T 786:1 which is equivalent to adopting international standards; ● Replace ISO 4401 with GB/T 2514 modified to adopt international standards (see Chapter 8); ● Replace ISO 5783 with GB/T 14043 which is equivalent to adopting international standards (see 4:3); ● Replace ISO 5598 with GB/T 17446 which is equivalent to adopting international standards (see Chapter 3); ● Removed ISO 3601-2:2008 (see ISO 6263:2013, Chapters 2 and 5:1): The following editorial changes have also been made to this document: --- Modify the installation surface code "6263-×-×-×-13" to "GB/T 8100:2-×-×-×-2021": 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: Beijing Huade Hydraulic Industry Group Co:, Ltd:, Ningbo Huaye Machinery Manufacturing Co:, Ltd:, Zhejiang Haihong Hydraulic Press Technology Co:, Ltd:, Sichuan Aerospace Fiberhome Servo Control Technology Co:, Ltd:, Xiamen Yinduli Industry Co:, Ltd:, Shanghai Lixin Hydraulics Co:, Ltd:, Beijing Machinery Industry Automation Research Institute Co:, Ltd: The main drafters of this document: Wang Jinyan, Zhou Liqin, Zhang Ce, He Xianjian, Si Guolei, Zhu Jiangen, Xiang Mei, Cao Qiaohui: The previous versions of this document and its superseded documents are as follows: --- First published in 1987 as GB/T 8098-1987, first revised in:2003; ---This is the second revision:

Introduction

In a hydraulic transmission system, power is transmitted and controlled by pressurized fluid in a closed circuit: The hydraulic valve is the most typical in the system A type of element that controls the flow direction, pressure or flow of a fluid in a closed loop: GB/T 8100 specifies the dimensions of the installation surface of hydraulic valves, which are to be composed of 5 parts: --- Part 1: Four-port directional valve: The purpose is to determine the size of the installation surface of the four-port directional valve (temporarily GB/T 2514-2008): --- Part 2: Speed control valve: The purpose is to determine the size of the mounting surface of the speed control valve: --- Part 3: Pressure reducing valves, sequence valves, unloading valves, throttle valves and check valves: The purpose is to determine the pressure reducing valve, sequence valve, unloading valve, joint Dimensions of the mounting surface for flow valves and check valves: --- Part 4: Relief valve: The purpose is to determine the size of the mounting surface of the relief valve (temporarily GB/T 8101-2002): --- Part 5: Four-port and five-port servo valves: The purpose is to determine the size of the installation surface of the four-port and five-port servo valves (temporarily for GB/T 17487-1998): The five parts of GB/T 8100 are formulated by ISO 's independent standards: In order to facilitate the systematic management and implementation of the standards, the independent standards are The quasi-combination is a sub-section standard: Hydraulic valve mounting surface part 2: speed regulating valve

1 Scope

This document specifies the dimensions and related data of the speed control valve mounting surface to ensure the interchangeability of use: This document applies to the speed control valve mounting surface commonly used in industrial equipment:

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated reference documents, only The version corresponding to this 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 2514 Hydraulic transmission four-port directional control valve mounting surface (GB/T 2514-2008, ISO 4401:2005, MOD) GB/T 14043 Identification code of hydraulic transmission valve mounting surface and valve hole of cartridge valve (GB/T 14043-2005, ISO 5783: 1995, IDT) GB/T 17446 Vocabulary of Fluid Transmission Systems and Components (GB/T 17446-2012, ISO 5598:2008, IDT)

3 Terms and Definitions

Terms and definitions defined in GB/T 17446 apply to this document:

4 symbols

4:1 The following symbols apply to this document: a) A, B, L, P, T and V indicate ports; b) F1, F2, F3 and F4 indicate threaded holes for fixing screws; c) G, G1 and G2 indicate positioning pin holes; d) D represents the diameter of the fixing screw; e) rmax represents the edge fillet radius of the mounting surface: 4:2 The graphic symbols used in this document shall comply with the provisions of GB/T 786:1: 4:3 The codes in this document shall comply with the provisions of GB/T 14043:

5 Tolerance

5:1 The mounting surface (that is, the area within the double-dotted line) should adopt the following tolerances: ---Surface roughness: Ra≤0:8μm; ---Surface flatness: no more than 0:01mm per 100mm; --- Locating pin hole diameter tolerance: H12: ......

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