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GB/T 7940.1-2008 English PDF

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Q: Should I purchase the latest version GB/T 7940.1-2008?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 7940.1-2008 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$234.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 7940.1-2008: Pneumatic fluid power -- Five-port directional control valves -- Part 1: Mounting interface surfaces without electrical connector
Status: Valid

GB/T 7940.1: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 7940.1-2008	234	Add to Cart	3 days	Pneumatic fluid power -- Five-port directional control valves -- Part 1: Mounting interface surfaces without electrical connector	Valid
GB/T 7940.1-2001	439	Add to Cart	3 days	Pneumatic fluid power -- Five-port directional control valves -- Part 1: Mounting interface surfaces without electrical connector	Obsolete
GB/T 7940-1987	199	Add to Cart	2 days	Pneumatic fluid power-five-port directional control valves--Mounting surfaces	Obsolete

Similar standards

GB/T 2351 GB/T 7932 GB/T 3766 GB/T 7939.1 GB/T 7939.2 GB/T 7939.3

Basic data

Standard ID: GB/T 7940.1-2008 (GB/T7940.1-2008)
Description (Translated English): Pneumatic fluid power -- Five-port directional control valves -- Part 1: Mounting interface surfaces without electrical connector
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J20
Classification of International Standard: 23.100.50
Word Count Estimation: 12,195
Date of Issue: 2008-06-25
Date of Implementation: 2009-01-01
Older Standard (superseded by this standard): GB/T 7940.1-2001
Quoted Standard: GB/T 3505-2000; GB/T 10610-1998; GB/T 17446-1998; ISO 11727
Adopted Standard: ISO 5599-1-2001, IDT
Regulation (derived from): National Standard Approval Announcement 2008 No.10 (Total No.123)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the five- port directional pneumatic without electrical connector of the control valve, when the maximum working pressure of 1. 6MPa, the mounting surface requirements are as follows: the mounting surface dimensions and tolerances, gas port identification, controlling mechanism driving the result of identity. This section does not apply to functional characteristics of the mounting surface.

GB/T 7940.1-2008: Pneumatic fluid power -- Five-port directional control valves -- Part 1: Mounting interface surfaces without electrical connector

---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.
Pneumatic fluid power Five-port directional control valves Part 1. Mounting interface surfaces without electrical connector ICS 23.100.50 J20 National Standards of People's Republic of China GB/T 7940.1-2008/ISO 5599-1.2001 Replacing GB/T 7940.1-2001 Five - port directional control pneumatic valves Part 1. Mounting interface surfaces without electrical connector (ISO 5599-1.2001, IDT) Posted 2008-06-25 2009-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 7940 under the "Air Five - port directional control valves," the general title, includes the following components. --- Part 1. Mounting interface surfaces without electrical connector; --- Part 2. mounting surface with optional electrical connector. This section GB/T Section 17940, and is identical with ISO 5599-1.2001/Cor. 1.2007 "pneumatic drive five gas Port directional control valves - Part 1. Mounting interface surfaces without electrical connector "Basic (in English) on to the GB/T 7940.1-2001" pneumatic five Port directional control valves - Part 1. Mounting interface surfaces without electrical connector "of revisions. This part of ISO 5599-1.2001 has the following important differences. --- "2 Normative references" and "references" to replace the corresponding national standards with international standards. This portion of the GB/T 7940.1-2001 main differences. --- On the "2" in the reference file for changes and additions; --- Add "3 Terms and Definitions"; --- Add "5.5 port for gas identification, additional options according to ISO 11727 to develop." This part is proposed by China Machinery Industry Federation. This part of the National Standardization Technical Committee of hydraulic and pneumatic (SAC/TC3) centralized. This section is drafted. Pneumatic Co., Ltd. Wuxi Institute of Technology, Beijing Institute of Technology, Industrial Automation Equipment Co., Ltd. Ningbo Sono. The main drafters of this section. Lee Enterprises aryl, Zhanglian Ren, Yang Sui Ran, Peng positive light, Wu Dengkui unit Ning. This part of the standard replaces the previous editions are. --- GB/T 7940-1987, GB/T 7940.1-2001. GB/T 7940.1-2008/ISO 5599-1.2001

Introduction

In the pneumatic system, the power is through a closed loop control and compressed air to pass. Various devices for distribution and control of gas can be installed directly in the pipeline or on the interface to quickly remove or replace. Five - port directional accordance with the requirements of this section and installation at the interface of the control valve, its function is to control the flow of compressed gas. To this end, the provisions of the air intake port identification and control, control of body movements result of identification, dimensions and tolerances of the mounting surface, to mention High provisions in this section of the interchangeability of pneumatic directional control valves. GB/T 7940.1-2008/ISO 5599-1.2001 Five - port directional control pneumatic valves Part 1. Mounting interface surfaces without electrical connector

1 Scope

GB/T 7940 provisions of this part of the Five - port directional pneumatic without electrical connector of the control valve, when the maximum operating pressure of 1.6MPa , Its mounting surface requirements are as follows. --- Mounting surface dimensions and tolerances; --- Identify air inlet; --- Control mechanism driving the results of identification. This section does not apply to the functional characteristics of the mounting surface.

2 Normative references

The following documents contain provisions which, through GB/T reference in this 7940 constitute provisions of this part. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. Definition of terms and parameters GB/T 3505-2000 Geometrical Product Specifications Surface texture Profile method Surface Structure (Eqv ISO 4287.1997) GB/T 10610-1998 Geometrical Product Specifications Surface texture Profile method - Rules and procedures for evaluation of the surface structure (Eqv ISO 4288.1996) GB/T 17446-1998 fluid power systems and components term (idt ISO 5598. 1985) ISO 11727 Pneumatic control valves and other components of the air intake, control identification mechanism

3 Terms and Definitions

Terms and definitions GB/T 17446 established applicable to this section.

4 size requirements and tolerances

4.1 pairs 1,2,3 specification code size requirements shown in Figure 1 and Table 1. 4.2 pairs of 4,5,6 specification code size requirements shown in Figure 2 and Table 2. 4.3 The main valve mounting surface dimensions and geometric tolerance shown in Figure 3, Figure 4 and Table 3. 4.4 mounting surface, including geometric tolerance dotted line framing of continuous surface, the following. --- Surface roughness. R Rao ≤1.6μm (see GB/T 3505, GB/T 10610); --- Flatness. 100mm distance within the range of 0.1mm. E.g. 4.5 valve mounting surface should not have additional outside air intake shown. Installation should include an aperture surface shown connected to an open seat on the pass Crossing. GB/T 7940.1-2008/ISO 5599-1.2001 ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 7940.1-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 7940.1-2008_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 7940.1-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 7940.1-2008_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 7940.1-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 7940.1-2008 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.