Pipeline Flange Bolt Torquing Project at Petrochemical Base

Tightening Petrochemical Pipeline Flange Bolts
Oil & Gas

Customer Background

Large-scale petrochemical enterprise with annual refining capacity of 2000 10,000 tons. Operates multiple crude oil processing and chemical production lines. Pipeline network exceeds 500 kilometers, with over 10 flange connection points.

Project Overview

  • Industry:Oil & Gas
  • Customer:Large-scale petrochemical enterprise
  • Project Location:Ningbo, Zhejiang
  • Implementation Time:2025 8

Technical Requirements and Challenges

Explosion-proof requirements

Flammable and explosive environments require explosion-proof certified tools.

Large-diameter flange

DN800 Pipe Flange M48 Bolt Pre-tensioning

High-Pressure Sealing

Pressure Rating PN160, Zero-Leakage Standard

Continuous Production

Downtime for maintenance: 48 hours

Solutions & Products

Provides an explosion-proof pneumatic-hydraulic torque wrench system with flange fastening solutions. Synchronized tightening ensures even load distribution on sealing surfaces. Multiple tools operate simultaneously to complete all fastening tasks within limited downtime.

Explosion-proof Pneumatic Hydraulic Torque Wrench (Ex-rated)
High-Torque Hydraulic Pump (PN160)
Flange Synchronized Tightening System
Torque Data Logging System

Implementation Results

Zero leakage
Pass the stress test on the first try
Achieve zero-leakage standards
42 hours
Complete tightening in advance
6 hours ahead of schedule
Safety Recognition
Received Safety Production Award
Zero safety incidents

Customer Reviews

Amidst tight shutdown windows, Ailansheng's explosion-proof hydraulic wrench system delivered outstanding results: completing the task ahead of schedule and achieving zero leaks. Its reliable explosion-proof performance fully meets petrochemical industry safety standards.
— Equipment Manager at a Petrochemical Base

Have a similar project in mind?

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