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GB/T 43142-2023

Ultra-high pressure water jet ship rust removal complete equipment (English Version)

GB/T 43142-2023
Standard No.
GB/T 43142-2023
Language
Chinese, Available in English version
Release Date
2023
Published By
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest
GB/T 43142-2023
Scope
It specifies the composition and basic parameters, technical requirements, component requirements, test methods, inspection rules, marking, packaging and storage of ultra-high pressure water jet ship rust removal equipment. It is applicable to the manufacture of ultra-high pressure water jet ship rust removal equipment with rated discharge pressure of 200MPa~300MPa, rated flow of 30L/min~75L/min, unit power of 160kW~315kW, and working medium of clean water at normal temperature.
Introduction

1. Background and significance of standard formulation

National Standard of the People's Republic of China GB/T 43142-2023 "Ultra-high pressure water jet ship rust removal equipment" is an important technical specification for the field of shipbuilding and maintenance. With the rapid development of modern shipbuilding technology, the requirements for cleanliness and efficiency of ship surface treatment are increasing. Ultra-high pressure water jet technology has become the industry's preferred solution due to its high efficiency and environmental protection. The formulation of this standard aims to unify the industry's technical requirements, standardize product design, production and inspection processes, and ensure that product quality and technical performance reach international advanced levels.


2. Comparative analysis of standard frameworks

Standard dimensions Technical requirements Implementation points
Basic parameter range Rated pressure: 200 MPa ~ 300 MPa; rated flow: 30 L/min ~75 L/min; unit power: 160 kW ~315 kW Equipment selection must match actual operational requirements to ensure that the parameters meet the hull size and rust removal grade requirements.
Core component requirements Pump unit, rust removal nozzle, actuator, vacuum recovery unit Each component must pass independent testing and assembly verification to ensure the overall stability of the system.
Performance indicators Rust removal efficiency: ≥30 m2/h (160 kW) ~ ≥60 m2/h (315 kW); Operation reliability: MTBF ≥100 h Water quality that meets the national drinking water standards must be used during the test to ensure data accuracy.

3. Recommendations for standard implementation

3.1 Equipment selection and configuration

Select a suitable set of ultra-high pressure water jet equipment according to the size of the hull and the level of rust removal required. Focus on the power of the pump unit, the type of nozzle (flat washer or self-rotating nozzle) and the operating capacity of the actuator.

3.2 Working Environment and Safety

Ensure that the working environment complies with GB/T26148 "Safety Specifications for High-Pressure Water Jet Cleaning Operations", and pay special attention to the laying and protection of high-pressure hoses to prevent accidental damage or bursting.

3.3 Maintenance

Regularly check the wear of wearing parts (such as nozzles and seals) and replace them in time to ensure long-term stable operation of the system. It is recommended to establish a maintenance record file for easy traceability and management.

GB/T 43142-2023 Referenced Document

  • GB 12514.2 Fire coupling.Part 2: Patterns and basic parameters for fire snap-types coupling
  • GB 20891 "Limits and Measurement Methods of Exhaust Pollutants from Diesel Engines for Non-road Mobile Machinery (China Phase III and Phase IV)" (GB 20891-2014) Amendment Sheet
  • GB/T 13306 Plates
  • GB/T 13384 General specifications for packing of mechanical and electrical product
  • GB/T 14976 Seamless stainless steel pipes for fluid transport
  • GB/T 22711 Specification for three-phase permanent magnet synchronous motors(frame size 80~355)
  • GB/T 26114 Filters for liquid filtration General technical specifications*2024-04-25 Update
  • GB/T 26148 Safety specification for the use of manually operated high pressure waterjet equipment
  • GB/T 3683 Specification for rubber hoses and hose assemblies, wire braid reinforced hydraulic type suitable for oil-based or water-based fluids
  • GB/T 41513 Classification and terms for jet equipment
  • GB/T 4208 Enclosure protection level (IP code) "Amendment No. 1" GB/T 4208-2017
  • GB/T 5272 Coupling with elastic spider
  • GB/T 5657 Technical specifications for centrifugal pumps (Class III)
  • GB/T 7784 Test methods for power reciprocating pump
  • HG/T 20583 Standard for structural design of steel chemical vessel
  • JB/T 6909 Ultra-high pressure pump
  • JB/T 6921 Roots vacuum pump unit
  • JB/T 7118 Specification for YVF2 series (IP54) variable frequency adjustable speed definite purpose converter-fed three-phase induction motors (Frame size 80~355)
  • JB/T 7258 Centrifugal blower for general purpose
  • JB/T 9090 Hydrastatic and leakage tests for positive displacement pump components

GB/T 43142-2023 history

  • 2023 GB/T 43142-2023 Ultra-high pressure water jet ship rust removal complete equipment



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