Business Details
50+ Years
experience
Custom Pressure Vessels and Tanks Manufacturer in Chino, CA
South Gate Engineering has been a trusted leader in pressure vessel manufacturing since 1947, combining 68 years of industry expertise with cutting-edge engineering technology. Our team of certified engineers and welders delivers custom solutions for complex OEM projects, adhering to the highest ASME/API standards while maintaining a flawless safety record. With a 10-acre facility housing over 100,000 square feet of advanced manufacturing space, we provide end-to-end services from design and fabrication to testing and coating. Our commitment to quality assurance is demonstrated through our ASME U, U2, S, and National Board R stamps, ensuring compliance with global industry standards. We specialize in pressure vessels up to 20 feet in diameter and 150 tons, utilizing multiple welding processes for carbon steel, stainless steel, and exotic metals.Our in-house capabilities include 3D modeling software, NDT testing, and specialized coatings for diverse applications. With strategic proximity to Ontario International Airport and the Port of Los Angeles, we efficiently serve domestic and international markets across aerospace, energy, water treatment, and pharmaceutical sectors. Our engineering team provides stamped calculations and seismic design solutions tailored to installation requirements in any state. Through continuous investment in technology and workforce development, we maintain our reputation as a worldwide brand for precision manufacturing and customer-focused service delivery.
Services
Pressure Vessels
Tanks
Piping Systems
Structural Components
Coating Services
Welding Procedures
NDT Testing
Engineering Calculations
Factory Acceptance Testing
International Shipments
Details
- Year established: 1947
Highlights and features
- We have 68 years of specialized experience in pressure vessel manufacturing.
- Our team holds ASME U, U2, S and National Board R stamp certifications.
- We operate a 100,000 sq ft facility with advanced welding and testing capabilities.
- Our engineers provide state-specific stamped design calculations for installations.
- We maintain a 24-hour NDT service for urgent testing requirements.
Associations and certifications
- ASME Certificate of Authorization U, U2, S stamps
- The National Board Certificate of Authorization R stamp
- Canadian Registration
- Brazilian Registration: NR13
- Australian Registration: AS1210
- European Standard: PED/CE
- City of Los Angeles Certificate of Approval-Fabricators License
- NACE Level 1 and Level 2 Inspector Certificates
Services
Pressure Vessel Manufacturing
South Gate Engineering produces custom pressure vessels up to 20 feet in diameter and 150 tons. Our ASME-certified welders utilize multiple processes including SMAW, SAW, and GTAW for carbon steel, stainless steel, and exotic metals. Each vessel undergoes rigorous quality control through our approved NDT providers, with design calculations performed using CEI DesignCalcs and Codeware Compress software. Our 10-acre facility supports complex projects requiring precision engineering and timely delivery.
Engineering Design
Our engineering team provides ASME-compliant calculations and 3D modeling using SolidWorks and FEA analysis. We offer stamped seismic calculations for state-specific installations, with expertise in PED/CE and PD 5500 standards. The design process includes vessel sizing optimization and material selection for applications ranging from cryogenics to high-temperature operations. Our engineers collaborate directly with clients to ensure technical and fiscal requirements are met while maintaining code compliance.
NDT Testing
We coordinate third-party NDT services meeting ASME Section VIII requirements, including radiographic, ultrasonic, and magnetic particle testing. Our quality control system maintains 24-hour availability for urgent examinations through approved inspection agencies. Additional services include PMI verification, Brinell hardness testing, and hydrostatic/pneumatic pressure testing. All testing documentation is maintained per ASME quality control manual requirements for traceability and compliance.
Protective Coatings
Our coating division applies NSF 61-approved linings and industrial coatings following SSPC and NACE standards. Services include zinc-epoxy primers, polyurethane finishes, and three-coat offshore systems for corrosion resistance. We offer glass bead blasting preparation and foam insulation application with protective top coats. All coating processes meet AWWA D102 and FDA requirements for water treatment and food processing applications.
Factory Assembly
We provide complete electromechanical assembly of pressure vessels with integrated piping, tubing, and hydraulics. Our skid-mounted systems undergo factory acceptance testing prior to shipment, minimizing field labor requirements. The assembly process includes tray installation, structural integration, and wiring for complete system functionality. This approach ensures operational readiness upon delivery while maintaining strict quality control throughout the manufacturing process.
Questions
What pressure vessel sizes can you manufacture?
We produce vessels up to 20 feet in diameter with empty weights reaching 150 tons, accommodating large-scale industrial requirements.
Do you provide international code compliance?
Yes, we meet PED/CE standards for Europe, AS/NZS 1200 for Australia, and PD 5500 for export equipment design requirements.
What welding processes do you use?
Our certified welders utilize SMAW, SAW, FCAW, GMAW, GTAW, and RMD processes for carbon steel, stainless steel, and exotic metals.
Can you handle seismic design requirements?
Our engineering team provides stamped seismic calculations tailored to specific installation locations and state regulations.
What coating options are available?
We offer NSF 61 linings, polyurethane finishes, three-coat offshore systems, and high-temperature zinc coatings for diverse environmental conditions.
How do you ensure quality control?
We maintain ASME U, U2, S stamps with third-party NDT verification through our approved 24-hour inspection service providers.
