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GB/T 15242.3-2021 English PDF

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Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 15242.3-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 15242.3-2021: Dimensions series of rod and piston dynamic seals for hydraulic cylinders - Part 3: Dimensions and tolerances of groove for co-axial seals
Status: Valid

GB/T 15242.3: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 15242.3-2021	259	Add to Cart	3 days	Dimensions series of rod and piston dynamic seals for hydraulic cylinders - Part 3: Dimensions and tolerances of groove for co-axial seals	Valid
GB/T 15242.3-1994	359	Add to Cart	3 days	Hydraulic fluid power. Cylinder rod and piston seals for reciprocating applications of Co-axial seals. Dimensions and tolerances of housings	Obsolete

Similar standards

GB/T 14034.1 GB/T 14041.4 GB/T 13871.5 GB/T 22107 GB/T 15242.4 GB/T 15242.2

Basic data

Standard ID: GB/T 15242.3-2021 (GB/T15242.3-2021)
Description (Translated English): Dimensions series of rod and piston dynamic seals for hydraulic cylinders - Part 3: Dimensions and tolerances of groove for co-axial seals
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J20
Word Count Estimation: 14,198
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 15242.3-2021: Dimensions series of rod and piston dynamic seals for hydraulic cylinders - Part 3: Dimensions and tolerances of groove for co-axial seals

---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.
Dimensions series of rod and piston dynamic seals for hydraulic cylinders-Part 3.Dimensions and tolerances of groove for co-axial seals ICS 23.100.60 CCSJ20 National Standards of People's Republic of China Replace GB/T 15242.3-1994 Hydraulic cylinder piston and piston rod dynamic sealing device size series Part 3.Coaxial seal groove dimension series and tolerances Released on 2021-05-21 2021-12-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

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" Drafting. This document is the third part of GB/T 15242 "Dimensions of hydraulic cylinder piston and piston rod dynamic seal device series". GB/T 15242 has The following sections were released. ---Part 1.Coaxial seal size series and tolerances; ---Part 2.Support ring size series and tolerances; ---Part 3.Coaxial seal groove dimension series and tolerances; ---Part 4.Support ring installation groove dimension series and tolerances. This document replaces GB/T 15242.3-1994 "The installation groove size system for coaxial seals for hydraulic cylinder piston and piston rod dynamic seal devices" Compared with GB/T 15242.3-1994, except for structural adjustments and editorial changes, the main technical changes are as follows. a) Modified the scope (see Chapter 1, Chapter 1 of the.1994 edition); b) Modified normative references (see Chapter 2, Chapter 2 of the.1994 edition); c) Added terms and definitions (see Chapter 3); d) Some symbols have been modified and added (see Chapter 4, Chapter 3 of the.1994 edition); e) The "Mounting groove type of coaxial seal for hydraulic cylinder piston dynamic sealing device" (see Figure 1 of the.1994 edition) is refined into "holes with square "Schematic diagram of coaxial seals and groove types for holes" and "Schematic diagram of coaxial seals for holes and groove types" and added sub-pictures "A) Schematic diagram of the seal" (see Figure 1, Figure 2); f) Modified and supplemented the groove dimensions and tolerances of square coaxial seals for holes, and added "Specification Code" (see Table 1,.1994 Edition of Table 1); g) The groove dimensions and tolerances of combined coaxial seals for holes have been added (see Table 2); h) "Mounting groove type of coaxial seal for hydraulic cylinder piston rod dynamic sealing device" (see Figure 2 of the.1994 edition) is changed to "stepped shaft for shaft "Schematic diagram of the coaxial seal and groove type" and added "Schematic diagram of the seal" (see Figure 3); i) Modified and supplemented the groove dimensions and tolerances of the stepped coaxial seals for shafts, and added the "Specification Code" (see Table 3,.1994) Table 2 of the year edition); j) The size of the rounded corner r has been modified (see Table 1, Table 2, Table 3, and Table 1 and Table 2 of the.1994 edition); k) Modified the lead-in angle length (see Table 4, Table 3 of the.1994 edition); l) The gap has been revised (see Table 5, Table 4 and Table 5 of the.1994 edition). Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by China Machinery Industry Federation. This document is under the jurisdiction of the National Hydraulic and Pneumatic Standardization Technical Committee (SAC/TC3). Drafting organizations of this document. Guangzhou Academy of Mechanical Sciences Co., Ltd., Yantai Future Automatic Equipment Co., Ltd., Suzhou Meifulixin Material Technology Co., Ltd., Ningguo Ruipu Sealing Co., Ltd., Northwest Rubber and Plastic Research and Design Institute Co., Ltd. The main drafters of this document. Qiu Zhaopei, Cao Changzhen, Fang Yong, Tang Yingda, Lu Xinchun, Guo Xuejing, Pan Yuxun. This document was first published in.1994, and this is the second revision.

Introduction

The coaxial seal and its installation groove, the support ring and its installation groove are part of the piston or piston rod dynamic sealing device, and its size is Compatible with each other, GB/T 15242 "hydraulic cylinder piston and piston rod dynamic seal device size series" stipulates the dimensions and specifications of these components. Poor, consists of four parts. ---Part 1.Coaxial seal size series and tolerances. Specify coaxial seals and related dimensions for pistons or piston rods And tolerance. ---Part 2.Support ring size series and tolerances. Specify the supporting ring for the piston or piston rod and its related dimensions and tolerances. ---Part 3.Coaxial seal groove dimension series and tolerances. Specifies the installation groove of the piston or the coaxial seal on the piston Relevant dimensions and tolerances. ---Part 4.Support ring installation groove dimension series and tolerances. Specify the relevant dimensions and dimensions of the support ring on the piston or piston rod tolerance. Hydraulic cylinder piston and piston rod dynamic sealing device size series Part 3.Coaxial seal groove dimension series and tolerances

1 Scope

This document specifies the symbols, types, size series and tolerances, installation guidelines of the coaxial seal installation grooves for hydraulic cylinder pistons and piston rods. The axial length and clearance of the entrance angle. This document is applicable to square coaxial seals and hole sets for holes that are installed in the piston and piston rod of reciprocating hydraulic cylinders for sealing purposes. Contract shaft seals, stepped coaxial seals for shafts.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to This document. GB/T 15242.1 Hydraulic cylinder piston and piston rod dynamic seal device size series Part 1.Coaxial seal size series and tolerances GB/T 17446 Vocabulary of fluid transmission systems and components

3 Terms and definitions

The terms and definitions defined in GB/T 15242.1 and GB/T 17446 apply to this document.

4 Symbols and abbreviations

The following symbols and abbreviations apply to this document. b --- groove width; D ---Hydraulic cylinder bore or bottom diameter of piston rod seal groove; d --- the diameter of the piston rod or the bottom diameter of the piston seal groove; d1 --- The diameter of the shoulders on both sides of the piston seal groove (d1=D-2F); d2 ---The diameter of the shoulders on both sides of the piston rod seal groove (d2=d 2F); F ---Gap; H ---groove depth; L --- the axial length of the installation lead-in angle; R,r---round corner radius; TF ---square coaxial seal for hole; TJ ---stepped coaxial seal for shaft; TZ ---Combined coaxial seal for hole. 5 Groove type, size series and tolerances 5.1 Groove type, size series and tolerances of square coaxial seals for holes 5.1.1 The schematic diagram of the seal and the groove type are shown in Figure 1. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 15242.3-2021_English be delivered?

Answer: Upon your order, we will start to translate GB/T 15242.3-2021_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 15242.3-2021_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 15242.3-2021_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 15242.3-2021?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 15242.3-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.