This standard specifies the type and basic parameters, technical requirements, test methods, inspection rules, warranty period, marking, packaging, transportation, and storage of centrifugal submersible sewage pumps (hereinafter referred to as pumps). This standard is applicable to pumps that contain non abrasive solid particles, fibers, and impurities (such as urban domestic sewage, chemical industry wastewater, etc.) in the conveyed liquid. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 191 Packaging, Storage and Transportation Graphical Symbols GB 755 Rotating Electrical Machines - Rating and Performance GB/T 985.1 Gas Welding, Welding Rod Arc Welding Recommended Grooves for Gas Shielded Welding and High Energy Beam Welding GB/T 985.2 Recommended Grooves for Submerged Arc Welding GB/T 1971 Rotating Electrical Machines - Line End Markings and Direction of Rotation GB/T 3216 Hydraulic Performance Acceptance Tests for Rotating Power Pumps - Level 1 and Level 2 GB/T 4942.1-2006 Protection Levels for the Overall Structure of Rotating Electrical Machines (IP Code) Graded GB/T 5013.4-2008 Rubber insulated cables with rated voltages up to and including 450/750V - Part 4: Flexible wires and cables GB/T 7021 Centrifugal pumps - Terminology GB/T 9239.1-2006 Mechanical vibration constant state (rigid) Quality requirements for rotor balance - Part 1: Inspection of specifications and balance tolerances - GB/T 12785 Test methods for submersible pumps - GB/T 13306 Labeling - GB/T 13384 General technical conditions for packaging of mechanical and electrical products - GB/T 17241.6 Integral cast iron flanges - GB/T 22719.1 Interturn insulation of loose embedded windings in AC low-voltage motors - Part 1: Test methods - GB/T 22719.2 Interturn insulation of loose embedded windings in AC low-voltage motors - Part 2: Test limits - JB/T 4297 Painting of pump products Technical Conditions JB/T 6879 Dimensional Tolerances for Flow Parts of Centrifugal Pump Castings JB/T 6880.1 Gray Iron Castings for Pumps JB/T 6880.2 Steel Castings for Pumps JB/T 8687 Sampling Inspection of Pump Products
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1. Telephone communication and confirmation of requirements
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1. The testing industry is fully covered, meeting different testing needs
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