GB/T 36702.2-2020 English PDFUS$184.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 36702.2-2020: Irrigation equipment - Safety devices for chemigation - Part 2: Chemigation valve assemblies from DN 75 (3〞) to DN 350 (14〞) Status: Valid
Basic dataStandard ID: GB/T 36702.2-2020 (GB/T36702.2-2020)Description (Translated English): Irrigation equipment - Safety devices for chemigation - Part 2: Chemigation valve assemblies from DN 75 (3��) to DN 350 (14��) Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: B91 Classification of International Standard: 65.060.35 Word Count Estimation: 10,182 Date of Issue: 2020-03-06 Date of Implementation: 2020-10-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 36702.2-2020: Irrigation equipment - Safety devices for chemigation - Part 2: Chemigation valve assemblies from DN 75 (3〞) to DN 350 (14〞)---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. Irrigation equipment--Safety devices for chemigation--Part 2. Chemigation valve assemblies from DN 75 (3 ") to DN 350 (14") ICS 65.060.35 B91 National Standards of People's Republic of China Safety device for chemical irrigation of irrigation equipment Part 2. DN75 (3 ″) to DN350 (14 ″) Chemical irrigation valve assembly (ISO 13693-2..2015, IDT) Released on 2020-03-06 2020-10-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee ForewordGB/T 36702 "Safety device for chemical irrigation of irrigation equipment" consists of the following parts. --- Part 1. Small plastic valves for chemical irrigation; --- Part 2. Chemical irrigation valve assemblies from DN75 (3 ″) to DN350 (14 ″). This part is Part 2 of GB/T 36702. This section was drafted in accordance with the rules given in GB/T 1.1-2009. The translation method used in this part is equivalent to ISO 13693-2..2015 "Safety devices for chemical irrigation of irrigation equipment. Part 2. DN 75 (3 ") to DN350 (14") chemical irrigation valve assembly. The documents in China that have a consistent correspondence with the normatively cited international documents in this section are as follows. --- GB/T 18691.1-2011 Agricultural Irrigation Equipment Irrigation Valve Part 1. General Requirements (ISO 9635-1..2006, MOD). The following editorial changes have been made in this section. --- 5.8.1 mentioned 5.3.1, which is a typographical error and amended to 5.3.2. This part is proposed by China Machinery Industry Federation. This part is under the jurisdiction of the National Agricultural Machinery Standardization Technical Committee (SAC/TC201). This section was drafted. China Academy of Agricultural Mechanization Sciences, Jiangsu University Fluid Machinery Engineering Technology Research Center, Zhejiang Rongya Engineering Trade Co., Ltd., Zhejiang Modern Agricultural Equipment Design and Research Institute. The main drafters of this section. Zhao Liwei, Zhang Xiansheng, Li Qingmian, Wang Yang, Zhou Yansuo, Hu Wanli, Wang Yingyi, Hu Qishun. Safety device for chemical irrigation of irrigation equipment Part 2. DN75 (3 ″) to DN350 (14 ″) Chemical irrigation valve assembly1 ScopeThis part of GB/T 36702 specifies the structure and performance requirements and test methods of metal chemical irrigation valves. The irrigation valve is suitable for Water temperature does not exceed 50 ℃, and the water may contain certain types and concentrations of fertilizers or chemicals commonly used in agricultural irrigation systems. The valve is used to prohibit back pressure or backflow caused by back suction, and is not used in drinking water systems. Not to be confused with other forms of backflow preventers Including pressure vacuum circuit breaker valve, double check valve, pressure relief valve, gooseneck ring. This section specifies the minimum design and structure of chemical irrigation valve components Structural and performance test requirements. The following components are included. --- A valve body with a spring check valve with an elastic disc cover installed inside the sealing surface; --- A leak valve/vacuum relief valve combination located upstream of the check valve; --- A low pressure drain valve located upstream of the check valve; --- A check port setting is used to allow visual and manual inspection of the working components of the valve.2 Normative referencesThe following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. ISO 9635-1..2014 Irrigation valves for agricultural irrigation equipment. Part 1. General requirements (Agriculturalirrigationequip- ment-Irrigationvalves-Part 1. Generalrequirements) EN1267..1999 Industrial valve uses water as a test fluid choking test anceusingwaterasatestfluid)3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Chemical irrigation valve A valve with a chemical injection port that prevents the injected chemical from moving upstream. 3.2 Checkvalve A valve that only allows water to flow in one direction. 3.3 Air vent Vacuum relief valve vacuumreliefvalve Automatically open during drainage of the pipe to allow air from the atmosphere to enter the pipe and/or discharge air to ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 36702.2-2020_English be delivered?Answer: Upon your order, we will start to translate GB/T 36702.2-2020_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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