GB/T 9481-2021Axial-flow pump of medium-small size (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 of Standardization Documents" Drafting.

This document replaces GB/T 9481-2006 "Small and Medium Axial Pump Types and Basic Parameters". Compared with GB/T 9481-2006, except In addition to structural adjustments and editorial changes, the main technical changes are as follows.

--- Changed the scope (see Chapter 1, Chapter 1 of the 2006 edition);

---The normative references have been changed (see Chapter 2, Chapter 2 of the 2006 edition);

---Change and increase some parameters (see 4.3, 5.1 in the 2006 edition);

---Added technical requirements (see Chapter 5);

---Added test methods (see Chapter 6);

---Inspection rules have been added (see Chapter 7);

---Added marking, packaging, transportation and storage regulations (see Chapter 8);

---Appendix A has been added.

1 Scope

This document specifies the type, model and basic parameters, technical requirements, test methods, inspection rules, markings, packaging, Transportation and storage.

This document is suitable for transporting clean water or other liquids with physical and chemical properties similar to water, or liquids containing a small amount of solid particles and having different diameters. Axial flow pump (hereinafter referred to as "pump") larger than 1000mm, flow rate 24L/s~3740L/s, head 1.0m~13.8m.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 191 Packaging, storage and transportation pictorial signs

GB/T 699 High-quality carbon structural steel

GB/T 1348 Ductile iron castings

GB/T 2828.1-2012 Sampling inspection procedures by attributes Part 1: Batch inspection sampling searched by acceptance quality limit (AQL) plan

GB/T 3216-2016 Hydraulic Performance Acceptance Test of Rotary Power Pump Level 1, Level 2, and Level 3

GB/T 9124.1 Steel pipe flange Part 1: PN series

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

GB/T 9439 Gray Iron Castings

GB 10395.8 Safety technical requirements for agricultural and forestry tractors and machinery Part 8: Drainage and irrigation pumps and pump units

GB 10396 General rules for safety signs and hazard graphics for agricultural and forestry tractors and machinery, lawn and garden power machinery

GB/T 11352 Cast carbon steel parts for general engineering

GB/T 13306 signs

GB/T 13384 General technical conditions for packaging of mechanical and electrical products

GB/T 17241.1 Cast iron pipe flange type

GB/T 29529-2013 Pump noise measurement and evaluation method

GB/T 29531-2013 Pump vibration measurement and evaluation method

JB/T 5673 General technical conditions for painting agricultural and forestry tractors and machinery

JB/T 6880.1 Gray cast iron parts for pumps

JB/T 6882 pump reliability verification test […]