
Purna offers comprehensive Mechanical and Piping Engineering services for industrial and process plants, delivering solutions that are safe, efficient, constructible, and future ready. With decades of experience across diverse industries, we support clients through the complete project lifecycle from concept and basic engineering to detailed design and construction support.
Our strength lies in integrating mechanical systems and piping networks seamlessly within complex plant environments, with equal expertise in greenfield and brownfield projects, including revamps, retrofits, and capacity expansions.
Purna can assist its customers along the entire life of wind machines, from assembly to ordinary and corrective maintenance for the main OEM. We are able to provide economical services in geographical location.
Purna can assist its customers in Finite Element Analysis (FEA), for the structural systems. Flow analysis in piping and ducting systems. Hydraulic and Surge analysis of piping systems.
Mechanical Engineering Services
- Equipment layout and general arrangement (GA) drawings
- Equipment selection, sizing, and technical specifications
- Design of pressure vessels, heat exchangers, tanks, and rotating equipment interfaces
- Material handling systems and plant utilities
- Vendor drawing review and technical bid evaluation
- Mechanical calculations and design validation
- Construction and commissioning support
We focus on operability, maintainability, and lifecycle performance while ensuring cost-effective and optimized mechanical solutions.
Piping Engineering Services
- Preparation of P&IDs and line lists
- Piping layout design and 3D modelling using Plant 3D and integrated BIM tools
- Piping isometrics, GA drawings, and fabrication drawings
- Pipe stress and flexibility analysis with detailed stress reports
- Pipe support design, hanger specifications, and support detailing
- Insulation specifications and piping BOM / MTO
- Clash detection and interdisciplinary coordination

Retro Fit Jobs
Our piping retrofit solutions are designed for plants undergoing modernization, expansion, or equipment upgrades. We conduct detailed as-built studies, evaluate existing system stress conditions and engineer safe and efficient piping modifications. This includes rerouting, tie-in point identification, elimination of interferences, material upgrades and integration with new equipment. Our approach ensures minimal downtime, maximum safety and compliance with applicable codes and standards making retrofit engineering a seamless part of plant improvement programs.
