Pipe Stress Analysis

We offer specialized pipe stress analysis services to ensure the safety, reliability, and compliance of critical piping systems in industrial environments, using industry-standard software like CAESAR II to perform detailed analyses of piping subjected to various load cases, including sustained pressure, thermal expansion, seismic events, wind loads, and equipment vibrations.

Our expertise covers the complete spectrum of stress evaluations—identifying primary, secondary, and occasional stresses—ensuring compliance with international standards such as ASME B31.3, B31.1, B31.4, B31.8, and EN 13480, while verifying nozzle loads against allowable limits in API 610, API 617, and NEMA SM23, safeguarding sensitive equipment like pumps, compressors, and exchangers.

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Training

SERVICES

Static Stress Analysis
- Assessment of sustained, thermal, occasional (wind, seismic), and displacement loads
- Expansion loop and flexibility evaluation
Support and Restraint Design
- Design of optimal pipe supports, hangers, guides, and snubbers
- Load reports for support load calculations
Stress Categorization & Code Compliance
- Identification of primary, secondary, and occasional stresses
- Compliance check with allowable limits per governing codes
Equipment Nozzle Load Evaluation
- Verification of loads on pumps, compressors, vessels, and heat exchangers
- API 610 / 617 / 661 and NEMA SM23 compliance
Slug Flow and Two-Phase Flow Impact
- Dynamic analysis for transient loading in multiphase flow systems
Seismic and Wind Load Analysis
- Seismic load incorporation as per site seismic zoning
- Wind loads as per ASCE 7 or local codes
Thermal Expansion & Flexibility Solutions
- Expansion joint recommendations and routing optimization
Comprehensive Reporting
- Detailed CAESAR II output reports with stress plots and support reactions
- Load summaries and stress compliance tables for client and third-party reviews

High-Temperature Process Lines
- Carry hot fluids or steam
- Subject to large thermal expansion
- Common in refineries, chemical plants, and power stations
Cryogenic Piping Systems
- Transport extremely cold fluids like LNG, liquid nitrogen, or oxygen
- Require special material and expansion control
Steam and Condensate Lines
- Operate under high pressure and temperature
- Prone to thermal cycling and water hammer effects
Compressor and Pump Suction/Discharge Lines
- Sensitive to nozzle loads and vibrations
- Require dynamic analysis for pulsation and vibration effects
Turbine Inlet and Outlet Piping
- High energy piping that affects rotating equipment
- Must comply with NEMA and OEM load limits
Two-Phase Flow/Slug Flow Lines
- Found in multiphase fluid transport systems
- Subject to dynamic loading and fatigue issues
Long-Distance Transfer/Utility Lines
- Pipe racks or buried lines with significant thermal expansion
- May involve support optimization and soil interaction
Safety Relief and Blowdown Lines
- Must handle rapid pressure and temperature changes
- Often subject to thrust forces and acoustic vibrations
Jacketed Piping Systems
- Used in heating/cooling applications with dual-layer piping
- Complex thermal and structural behaviour
High-Pressure Piping Systems
- Found in petrochemical, power, and HP steam applications
- Require precise material selection and fatigue analysis
Subsea and Offshore Piping
- Includes risers and flowlines
- Subject to wave loading, current, and motion-induced stress
Firewater and Emergency Systems
- Must function reliably under emergency conditions
- Often designed for seismic and water hammer conditions