GB/T 26801-2011 English PDF

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GB/T 26801-2011: Fluid flow in closed conduits -- Connections for pressure signal transmissions between primary and secondary elements
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 26801-2011	454	Add to Cart	4 days	Fluid flow in closed conduits -- Connections for pressure signal transmissions between primary and secondary elements	Valid

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Basic data

Standard ID: GB/T 26801-2011 (GB/T26801-2011)
Description (Translated English): Fluid flow in closed conduits -- Connections for pressure signal transmissions between primary and secondary elements
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N12
Classification of International Standard: 17.120.10
Word Count Estimation: 23,261
Date of Issue: 2011-07-29
Date of Implementation: 2011-12-01
Quoted Standard: GB/T 2624.1-2006; GB/T 2624.2-2006; GB/T 2624.3-2006; GB/T 2624.4-2006; GB/T 17611
Adopted Standard: ISO 2186-2007, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 12 of 2011
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 time between the device and the second device the pressure signal transmission system design, layout and installation. By the pressure signal transmission system, using known techniques, measuring a fluid flow from the apparatus to safely transmit a pressure signal to the secondary device, and the signal value is not distorted or changed.

GB/T 26801-2011: Fluid flow in closed conduits -- Connections for pressure signal transmissions between primary and secondary elements

---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.
Fluid flow in closed conduits. Connections for pressure signal transmissions between primary and secondary elements ICS 17.120.10 N12 National Standards of People's Republic of China Enclosed measuring fluid flow in the pipeline Means between the primary and the secondary device Connection of pressure signal transmission (ISO 2186.2007, IDT) Issued on. 2011-07-29 2011-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 1 General 4.1 Safety seal 1 4.2 pipe size 2 4.3 isolation valve (valve) 2 4.4 Manifold 3 4.5 Installation 4 4.6 taps 4 Size 4.7 Impulse tube 4 4.8 Insulation 5 5 5 horizontal pipe installation 5.1 Gas 5 5.2 liquid 5 5.3 condensed steam, such as water vapor 5 6 vertical pipe installation 6 6.1 General 6 6.2 Gas 6 6.3 Liquid 6 6.4 condensed steam, such as steam 6 7 grading ring 7 8 7 special case Appendix A (informative) long connecting pipe diameter 8 Select Guide Annex B (informative) Impulse control of dynamic characteristics 9 Annex C (informative) head height calculation example 10 Annex D (informative) Supplementary legend 11 References 18

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard uses the translation method identical with ISO 2186.2007 "Measurement of fluid flow in closed conduits primary device and the secondary device Pressure between the transmitted signal connection method. " This standard made the following editorial changes. a) a reference to the original standard 5.1 and 5.2, the slope of the "8%" into a unified representation of the original reference standard Figure D.3, namely "1.12.5"; b) by deleting references to the original standard table A.1 title in parentheses, brackets put the contents of a table showing the top right of the unit taken, and deleted Table A.1 "pressure signal is transmitted from the" bottom "mm" error representation; c) a reference to the original standard table C.1, the values \u200b\u200blisted in the table by the lack of specific volume density values \u200b\u200bshown in the table, this is due to the specific volume given Value due to insufficient number of significant digits. Contrast this standard capacitance values \u200b\u200bdid Correction. In 0.001001969m3/kg instead of 0.001002m3/kg; in 0.001004466m3/kg instead of 0.001004m3/kg. The standard proposed by China Machinery Industry Federation. This standard by the national industrial process measurement and control Standardization Technical Committee (SAC/TC124) centralized. This standard was drafted. Shanghai Industrial Automation Instrument Research Institute, Shanghai Automation Instrumentation System Inspection and Testing Institute, Yuyao silver circulation Instrument Co., Ltd., Naval Aviation devices metering station. The main drafters of this standard. Guo Aihua, Zhu Jiashun, Zhao Yiqian, Gushun Feng. Enclosed measuring fluid flow in the pipeline Means between the primary and the secondary device Connection of pressure signal transmission

1 Scope

This standard specifies the means between the primary and the secondary device pressure signal transmission system design, layout and installation. By pressure signal transmission Delivery system, using known techniques of fluid flow measuring a pressure signal from the device safely transferred to a secondary device, and the signal will not Distorted or changed.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 2624.1-2006 with the differential pressure measuring device mounted to round pipe full pipe fluid flow - Part 1. General Principles and requirements (ISO 5167-1.2003, IDT) GB/T 2624.2-2006 with the differential pressure measuring device mounted to round pipe full pipe fluid flow - Part 2. Orifice (ISO 5167-2.2003, IDT) GB/T 2624.3-2006 with the differential pressure measuring device mounted to round pipe full pipe fluid flow - Part 3. Nozzle Venturi nozzles (ISO 5167-3.2003, IDT) GB/T 2624.4-2006 with the differential pressure measuring device mounted to round pipe full pipe fluid flow - Part 4. Venturi Tubes (ISO 5167-4.2003, IDT) GB/T 17611 in closed conduits measuring fluid flow terms and symbols (GB/T 17611-1998, ISO 4006.1991, IDT)

3 Terms and Definitions

GB/T 17611 and GB/T 2624.1 and define the following terms and definitions apply to this document. 3.1 Secondary means secondarydevice Receiving a pressure signal from the device, and can display the differential pressure signal into a different form, such as a digital signal or an analog signal Number, and then transferred to the differential pressure device according to another place.

4 General

4.1 Safety seal Differential pressure signal to be transmitted through a pipe or hose securely to the secondary device. This requires a secure seal between the primary and the secondary device means Fluid. Safety sealing fluid required to meet the applicable standards and regulations, the need to use a suitable structural materials, production methods, washers and password ......

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