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GB/T 18690.3-2017 English PDF

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GB/T 18690.3-2017: Agricultural irrigation equipment -- Filters for micro-irrigation -- Part 3: Automatic flushing strainer-type filters and disc filters
Status: Valid

GB/T 18690.3: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 18690.3-2017English179 Add to Cart 3 days [Need to translate] Agricultural irrigation equipment -- Filters for micro-irrigation -- Part 3: Automatic flushing strainer-type filters and disc filters Valid GB/T 18690.3-2017
GB/T 18690.3-2002English399 Add to Cart 3 days [Need to translate] Agricultural irrigation equipment -- Filters -- Automatic self-cleaning strainer-type filters Obsolete GB/T 18690.3-2002

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Basic data

Standard ID GB/T 18690.3-2017 (GB/T18690.3-2017)
Description (Translated English) Agricultural irrigation equipment -- Filters for micro-irrigation -- Part 3: Automatic flushing strainer-type filters and disc filters
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B91
Classification of International Standard 65.060.35
Word Count Estimation 9,998
Date of Issue 2017-09-29
Date of Implementation 2018-04-01
Older Standard (superseded by this standard) GB/T 18690.3-2002
Regulation (derived from) National Standard Announcement 2017 No. 23
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

GB/T 18690.3-2017: Agricultural irrigation equipment -- Filters for micro-irrigation -- Part 3: Automatic flushing strainer-type filters and disc filters


---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.
Agricultural irrigation equipment-Filters for microirrigation-Part 3. Automatic flushing strainer-type filters and disc filters ICS 65.060.35 B91 National Standards of People's Republic of China Replacing GB/T 18690.3-2002 Agricultural irrigation equipment micro-irrigation filter Part 3. Auto-flush mesh filters and Laminated filter Part 3.Automaticflushingstrainer-typefiltersanddiscfilters (ISO 9912-3.2013, IDT) 2017-09-29 Posted 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

GB/T 18690 "Agricultural irrigation equipment for micro-irrigation filter" is divided into three parts. --- Part 1. Terms, definitions and classification; --- Part 2. Mesh filters and laminated filters; --- Part 3. Automatic washing mesh filter and laminated filter. This section GB/T 18690 Part 3. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 18690.3-2002 "automatic irrigation filter device for agricultural irrigation equipment." This section compared with GB/T 18690.3-2002, in addition to editorial changes outside the main technical changes are as follows. --- Modify the scope of the standard, an increase of automatic flushing lamination filter requirements (see Chapter 1,.2002 edition of the 1 chapter). --- Added some terms (see Chapter 3,.2002 edition Chapter 3). This section uses the translation method is equivalent to using ISO 9912-3.2013 "Agricultural irrigation equipment for micro-irrigation filter Part 3. Automatic red Wash the net filters and laminated filters. " This part is proposed by China Machinery Industry Federation. This part of the National Agricultural Machinery Standardization Technical Committee (SAC/TC201) centralized. This section drafted by. China Agricultural Mechanization Research Institute, Jiangsu University Fluid Machinery Engineering Research Center, Shanghai Hua Wei Festival Water Irrigation Co., Ltd. The main drafters of this section. Zhang Xian Sheng, Wang Yang, Zhao Liwei, Lv Mingli, Yan Hao Fang, Lin Yuhan, Hou Yongsheng. This part replaces the standards previously issued as. --- GB/T 18690.3-2002. Agricultural irrigation equipment micro-irrigation filter Part 3. Auto-flush mesh filters and Laminated filter

1 Scope

This part of GB/T 18690 specifies the automatic irrigation mesh filter and laminated filter used in agricultural irrigation system (the following Referred to as filter) the general structural requirements and test methods. This section does not cover the filter performance, efficiency and capacity (such as the quality of filtered water, the filter is completely blocked before running time Wait). Note 1. Definitions and test methods for filter performance, efficiency and capacity parameters will be given in other ISO technical reports. The technical report will provide for the phase Test methods for comparing various filters using user-specified water under the same operating conditions to characterize the filter as specified by the user or experimenter In the operating characteristics. Note 2. GB/T 18690.2-2017 gives the general requirements for mesh filters and lamination filters (see Chapter 5).

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. Agricultural irrigation equipment - Micro - irrigation filters - Part 2. Mesh filters and laminated filters (ISO 9912-2.2013, IDT) ISO 9912-1, Agricultural irrigation equipment - Filters for micro irrigation - Part 1. Terms, definitions and classifications (Agriculturalirrigation equipment-Filtersformicro-irrigation-Part 1.Terms, definitionsandclassification)

3 Terms and definitions

ISO 9912-1 and GB/T 18690.2-2017 defined and the following terms and definitions apply to this document. 3.1 Automatic flushing filter automaticflushingfilter A filter that activates automatically on both the start and end of a wash cycle. 3.2 Automatic flushing cycle duration durationofautomaticflushingcycle The amount of time required to flush water and clogs out of each flush. 3.3 Flushing control mechanism flushingcontrolmechanism A mechanism that controls the start and end of a filter wash. 3.4 Flush valve flushingvalve A valve that drains flush water from the filter.

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