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GB/T 1952-2015: Marine low pressure bronze male threaded check valves
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Std ID	Version	USD	Buy	Deliver [PDF] in	Title (Description)
GB/T 1952-2015	English	169	Add to Cart	3 days [Need to translate]	Marine low pressure bronze male threaded check valves
GB/T 1952-1980	English	199	Add to Cart	2 days [Need to translate]	Low pressure bronze male screw-thread check valve for marine use

GB/T 1952-2015: Marine low pressure bronze male threaded check valves

---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.
Marine low pressure bronze male threaded check valves ICS 47.020.30 U52 National Standards of People's Republic of China Replacing GB/T 1952-1980 Marine low pressure bronze male threaded valve Issued on. 2015-07-03 2015-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 1952-1980 "Marine low pressure bronze male threaded valve", compared with the GB/T 1952-1980 Technical Changes as follows. --- Increasing the wall thickness of the valve provisions; --- Increasing the valve, the valve plate, valve cover material; --- Adjust the structure size. The standard proposed by China Shipbuilding Industry Corporation. This standard by the National Marine Machinery Standardization Technical Committee (SAC/TC137) centralized. This standard was drafted. Dalian Shipbuilding Industry Group Co., Ltd. Dalian Jinmei Valves. The main drafters of this standard. Thin Britain, Liu Xiaopeng, MA Yulong, Chen Qing, Zhang Zhi together, the long-peng. This standard replaces the standards previously issued as follows. --- GB/T 1952-1980. Marine low pressure bronze male threaded valve

1 Scope

This standard specifies the Marine low pressure bronze male threaded valve (hereinafter referred to as a check valve) classification and marking requirements, test methods, inspection Rules, packaging and storage. This standard applies to water, fresh water, fuel, oil and temperature not higher than 250 ℃ steam ship line check valve design, manufacture and acceptance.

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 600-2008 marine piping valves General technical requirements GB/T 1176-2013 Copper and copper alloy casting GB/T 1184-1996 shape and position tolerances without individual tolerance value GB/T 1804-2000 General tolerances Tolerances for linear and angular dimensions without individual tolerance GB/T 1958 Geometrical Product Specifications (GPS) shape and position tolerance testing requirements Flag GB/T 3032 Ship pipeline accessories CB * 821-1984 low pressure pipe nipple CB/T 3927 Marine casting wall thickness of the valve member

3 Classification and Marking

Type 3.1 Predetermined type check valve as follows. A Type --- straight valve; Type B --- right angle valve. 3.2 Basic parameters Check the basic parameters in Table 1. Table 1 of the basic parameters of the check valve Type Nominal PN Design pressure p MPa Nominal size DN 16 1.6 15 to 32 ...