GB/T 42341-2023Centrifugal dredge pump (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting.

1 Scope

This document specifies the structure and type, technical requirements, test methods, inspection rules, marking, packaging, transportation and transport and storage.

This document is applicable to the design, manufacture and acceptance of dredger centrifugal dredge pumps (hereinafter referred to as "dredge pumps").

2 Normative references

The content in the following documents constitutes the essential provisions of this document through normative references in the text. Among them, dated references Only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies in this document.

GB/T 700 carbon structural steel

GB/T 1184-1996 Tolerance of shape and position without tolerance value

GB/T 1220 stainless steel rod

GB/T 1348 ductile iron castings

GB/T 1800.2-2020 Product Geometric Specifications (GPS) Linear Dimensional Tolerances ISO Code System Part 2: Standard Tolerances Differential zone code and limit deviation table of hole and shaft

GB/T 1804-2000 General tolerances Tolerances of linear and angular dimensions without tolerances

GB/T 3077 Alloy structural steel

GB/T 3098.1-2010 Mechanical properties of fasteners Bolts, screws and studs

GB/T 6414-2017 Dimensional tolerances, geometric tolerances and machining allowances of castings

GB/T 7233.1-2009 Ultrasonic testing of steel castings Part 1: General purpose steel castings

GB/T 8263 Anti-wear white iron castings

GB/T 8923.1-2011 Visual assessment of surface cleanliness of steel surface treatment before coating - Part 1: Uncoated The rust level and treatment level of the steel surface and the steel surface after the original coating has been completely removed

GB/T 9239.1-2006 Mechanical vibration constant (rigid) rotor balance quality requirements Part 1: Specifications and balance tolerances test

GB/T 11351-2017 Casting Weight Tolerance

GB/T 11352 Cast carbon steel parts for general engineering

GB/T 13306 Signage

GB/T 18149 Centrifugal pumps, mixed flow pumps and axial flow pumps hydraulic performance test specification precision grade

GB/T 19418-2003 Guidelines for quality classification of arc welded joint defects in steel

JB/T 8467-2014 Ultrasonic testing of steel forgings

3 Terms and Definitions

The following terms and definitions apply to this document.