Oil and Gas Parts Manufacturing Service

Use corrosion-resistant alloys such as stainless steel (e.g., 316L), duplex steel, Inconel, or titanium for exposed components. Ensure that all materials are compliant with NACE MR0175 for sour gas environments and possess material certificates (e.g., ASTM A106, ASTM A182).

Follow ASME B31.3 for piping design and ASME Section VIII for pressure vessels. Perform stress analysis using FEA to ensure that parts withstand internal and external pressures, accounting for burst pressure and fatigue resistance under cyclic loading conditions.

Ensure weldability of selected materials with well-defined procedures per ASME IX. For critical joints, use full penetration welds, and ensure proper preheating and post-weld heat treatment (PWHT) to prevent cracking. Conduct non-destructive testing (NDT) per ASME V or API 1104.

For components exposed to aggressive environments (e.g., saltwater, acids), apply corrosion-resistant coatings such as chromium or zinc for enhanced protection. Specify cladding or overlay welding techniques to increase resistance to abrasive wear in high-flow or high-impact applications.

Design heat exchangers and components exposed to high temperatures with materials that maintain integrity at elevated temperatures. Use thermal analysis to ensure that components perform within specified temperature ranges, and include thermal expansion allowances in joints and seals.

Evaluate the fatigue resistance of high-stress components using cyclic loading analysis per API 579 or ASME Section VIII. Ensure design margins account for fluctuating operational pressures, vibrations, and cyclic loads experienced in pumps, valves, and pipelines.

Design for leak-tight sealing in flanges, valves, and pumps by selecting suitable sealing materials such as graphite, PTFE, or metal gaskets. Use double sealing systems where required, and conduct pressure testing as per API 598 or ASME B16.5 to validate seal integrity.

Apply ISO 286 and ASME Y14.5 tolerancing to ensure parts fit within tight tolerances for critical components such as valve seats and pipe connections. Maintain concentricity, alignment, and surface finish quality (Ra ≤ 0.8 µm) for optimal fluid flow and leak resistance.

Use NDT techniques such as ultrasonic testing (UT), radiographic testing (RT), and eddy current testing (ET) to inspect critical welds, pipe joints, and pressure vessels. Ensure compliance with ASME V or API 1104 standards, and document all inspections with appropriate reports and certifications.

Ensure designs comply with international standards such as ASME B31.3, API 6A, and ISO 9001. Follow relevant safety codes such as NFPA 70E for electrical components and ensure fire and explosion protection compliance. Maintain all necessary documentation for regulatory approval and audits.

Select materials that resist high temperatures, pressures, and corrosive environments. Use corrosion-resistant alloys like duplex stainless steel, Inconel, and titanium for components exposed to harsh chemicals, seawater, and sour gas. Ensure compliance with NACE MR0175 for sour service.

Ensure components are designed to withstand cyclic loads and high stresses. Use FEA simulations to analyze fatigue under dynamic loading conditions per API 579 or ASME BPVC. Components exposed to vibration or repeated loading should meet fatigue life expectations with safety factors of ≥2.5.

Apply full penetration welding to ensure leak-tightness in critical applications. Follow API 1104 or ASME IX welding codes for pressure boundary welds. Conduct post-weld heat treatment (PWHT) to relieve residual stresses and prevent cracking, especially for high-strength steels and alloys.

Ensure leak-tight sealing for pressure-containing components. Use metal-to-metal seals, O-rings, or spiral wound gaskets depending on pressure and temperature ratings. Conduct helium leak testing (<1×10⁻⁹ Pa·m³/s) to validate sealing integrity. Design for double sealing in critical gas pipelines or high-pressure vessels.

Apply protective coatings such as zinc plating, epoxy coating, or PVD coatings to components exposed to corrosive fluids or environments. Use cathodic protection on submerged parts and apply heat treatment or passivation to enhance resistance to pitting and crevice corrosion.

For pressure-containing parts such as valves, flanges, and pressure vessels, design to withstand internal and external pressures per API 6A and ASME Section VIII standards. Conduct hydrostatic or pneumatic testing to verify the structural integrity and leak resistance of critical components.

Maintain tight tolerances for critical interfaces such as flanged connections, sealing surfaces, and threaded components. Use GD&T as per ASME Y14.5 or ISO 1101. Ensure that all parts are machined to fit within functional and assembly tolerance limits for smooth operation.

Use NDT techniques such as ultrasonic testing (UT), radiographic testing (RT), and magnetic particle inspection (MPI) to assess material integrity and weld quality. Ensure that all critical components pass NDT as per API 1104 and ASME Section V standards to prevent defects in high-risk applications.

Ensure compliance with international standards such as ASME, API, ISO 9001, and NACE MR0175 for material selection and design. Maintain all required documentation, including certificates of compliance, inspection reports, and product certifications for regulatory approval and audits.