Pipeline Flange Bolt Torquing Project at Petrochemical Base

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.
Implementation Results
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.
Have a similar project in mind?
Our engineering team will provide a specialized bolt preloading solution tailored to your specific operating conditions.
