Welcome to Liu Engineering

With more than 30 years of experience, Liu Engineering has been a trusted leader in engineering design and consulting, based in Pittsburgh, Pennsylvania. Our team of highly disciplined professional engineers and designers is dedicated to delivering innovative, safe, and reliable solutions for the energy and water infrastructure sectors. We specialize in designing, constructing, and commissioning pipelines and related facilities while ensuring strict code compliance and industry best practices.

Our Legacy of Excellence
At Liu Engineering, our rich history spans over three decades of hands-on experience in the engineering industry. We have successfully supported over $100 million in pipeline projects, delivering solutions that range from gas and water pipeline design to complex facility engineering. Our work includes designing interstate transmission and gathering lines, wellpad piping and facilities, and gas distribution pipelines. We have also executed critical tasks such as commissioning pipelines, purging pipelines per API procedures, and developing as-built drawings and job books for seamless project turnover.

Why Choose Liu Engineering?
• Extensive Experience: With 30 years in the industry, our expertise is proven by our diverse portfolio and our long-standing client relationships in the Pittsburgh area and beyond.
• Comprehensive Solutions: From early feasibility studies and route selection to detailed hydraulic analyses, HDD design, and construction specifications, our services cover the entire project lifecycle.
• Regulatory Expertise: We support pipeline operators in achieving and maintaining code compliance, ensuring that every project meets or exceeds the standards set forth by ASME, API, DOT, and PHMSA.
• Innovative Technology: Our advanced engineering tools and analytical techniques—ranging from pipe stress analysis to pulling force calculations—enable us to optimize designs and deliver projects on time and within budget.

Our Approach
We believe that successful projects start with thorough planning and close collaboration with our clients. Liu Engineering’s integrated approach encompasses detailed feasibility studies, advanced hydraulic modeling, precise route and material selection, and rigorous quality control throughout construction and commissioning. Whether you require design services for gas distribution pipelines, water pipelines, or complex facility installations such as meter and regulator stations, our team is equipped to meet your needs.

What We Do
• Pipeline Engineering & Hydraulic Analysis: Designing efficient pipeline routes with advanced flow and stress modeling.
• Facility Design & Construction Support: Creating custom solutions for meter and regulator stations, launcher/receiver facilities, and pump/compressor stations.
• Commissioning & Code Compliance: Guiding projects through API-compliant hydrotesting, purging, commissioning, and regulatory approvals.
• Specialized Analyses: Providing detailed HDD design, pulling force, and pipe stress analysis to ensure system integrity and long-term reliability.

We invite you to explore our website to learn more about how Liu Engineering can bring your next project to life with precision, expertise, and a commitment to excellence.