Conventional Island Bolt Pre-tightening Project at a Nuclear Power Plant

Tightening of bolts in the conventional island of a nuclear power plant
nuclear and thermal power

Customer Background

A nuclear power operations company managing multiple million-kilowatt-class nuclear units, with annual generation exceeding 500 billion kWh, is a major clean energy provider in China. Nuclear plants adhere to extremely high safety standards and impose strict requirements on equipment quality and construction workmanship.

Project Overview

  • Industry:nuclear and thermal power
  • Customer:Nuclear Power Operations Company
  • Project Location:Yangjiang, Guangdong
  • Implementation Time:2025 11

Technical Requirements and Challenges

Nuclear Safety Grade Requirements

Turbine casing bolt pre-tightening: Nuclear safety class requirements demand extremely stringent quality standards.

High torque accuracy

Torque accuracy ±2%, ensuring connection reliability

Data Traceability

Fully record the tightening process with traceable data.

Warranty Requirements

Complies with nuclear quality assurance requirements; all documentation is complete.

Solutions & Products

Smart electric torque wrench system with automatic data logging, compliant with nuclear quality assurance requirements. Torque accuracy ±2%, complete quality documentation and calibration certificates provided to meet nuclear safety acceptance standards.

Smart Electric Torque Wrench (Nuclear Grade Certified)
Automated Data Logging System
Quality Documentation Package (Including Calibration Certificates)
Torque Data Traceability System

Implementation Results

Passed Acceptance
Nuclear Safety Acceptance
Meets nuclear safety standards
Full Profile
Torque Data Profile
Data Traceability
±2%
Torque Accuracy
All criteria met

Customer Reviews

Nuclear power plants demand the highest standards for equipment quality and construction workmanship. Ailansheng Technology's intelligent electric torque wrench system fully meets nuclear safety-grade requirements. Our automatic data logging feature enabled us to establish a complete torque data archive, ensuring successful nuclear safety acceptance. The technical team was professional and rigorous, with comprehensive documentation—a truly successful partnership.
— Director of Nuclear Power Plant Equipment

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