API 6D Compliance Ball, Gate and Check Valves for Onshore Oil & Gas Pipeline
C-Way Engineering Exports supplied API 6D compliant ball valve, gate valve and check valves for an onshore oil and gas pipeline project in Nigeria. The pipeline is a critical component of the hydrocarbon transportation network, designed for continuous high-pressure operation under harsh outdoor environmental conditions.
The project was executed by an experienced EPC contractor responsible for pipeline construction, installation, and commissioning. C-Way Engineering Exports was selected as the valve supply partner based on proven expertise in API-standard pipeline valves, strict adherence to project technical specifications, and a strong track record of reliable delivery schedules for oil and gas pipeline projects.
Project Challenges
Onshore pipeline projects in Nigeria present several practical challenges that require careful valve selection and execution experience.
The client had previously faced issues such as:
- Leakage at valve seats and flanged joints
- Inconsistent valve performance under pressure
- Valves not suitable for long-term outdoor exposure
- Limited tolerance for frequent maintenance after commissioning
- Strict requirement for API 6D compliance and complete documentation
In addition to technical concerns, the project timeline was tight, and valve supply delays could directly impact pipeline commissioning.
Valve Selection Approach
C-Way Engineering Exports worked closely with the EPC team to finalize valve selection based on operating conditions and project specifications.
The following strategy was adopted:
- API 6D compliance Fire safe Ball Valves were selected for pipeline isolation due to their full bore design, low pressure drop, and reliable shut-off.
- Gate Valves were used in pipeline sections where uninterrupted flow and pigging operations were required.
- Check Valves were installed to prevent reverse flow and protect pumps and upstream equipment.
Special attention was given to valve sizing, pressure class selection, and operational reliability to ensure long service life.
Product Scope Supplied by C-Way Engineering Exports
The supply scope included:
- API 6D Full Bore Ball Valves
- API 6D Gate Valves
- API 6D Swing Check Valves
Technical details:
- Size range: 2” to 24”
- Pressure class: ANSI 150, 300, and 600
- End connections: Flanged and Butt Weld
- Operation: Manual / gear-operated where required
All valves were manufactured and tested in accordance with API 6D and relevant ASME standards.
Materials & Technical Specifications
Considering operating pressure and environmental exposure, robust materials were selected:
- Valve body material: Carbon Steel (ASTM A216 WCB / ASTM A105)
- Trim material: Stainless Steel SS 316
- Seat design: Soft seat or metal seat depending on service conditions
- Applicable standards:
- API 6D
- ASME B16.5
- ASME B16.34
Each valve was supplied with:
- Hydrostatic and seat leakage test reports
- Material Test Certificates (MTC)
- Dimensional and visual inspection records
Manufacturing & Quality Control
At C-Way Engineering Exports, all valves supplied for this project underwent strict quality control before dispatch.
Quality checks included:
- Dimensional verification
- Pressure testing as per API 6D
- Seat leakage testing
- Visual inspection of coating and finishes
Valves were packed using export-grade wooden box packaging suitable for long-distance transportation and site handling conditions in Nigeria.
Installation & Site Execution Considerations
Based on EPC experience, the following installation aspects were addressed during supply coordination:
- Correct valve orientation for ease of operation and maintenance
- Proper pipeline support to avoid stress on valve bodies
- Controlled flange bolting and alignment
- Protection of valve internals during site handling
These practices helped prevent early-stage operational issues during commissioning.
Solution Delivered
By supplying API 6D compliant, field-proven pipeline valves, C-Way Engineering Exports addressed the client’s key concerns.
The supplied valves ensured:
- Reliable isolation and flow control
- Stable performance under full operating pressure
- Reduced risk of leakage and premature failure
- Compliance with project specifications and international standards
Timely delivery supported uninterrupted project execution.
Results & Performance
During commissioning and initial operation:
- All valves passed pressure testing without issues
- No leakage was reported at valve seats or flanged joints
- Valve operation remained smooth under operating conditions
- The pipeline was commissioned as per schedule
Client Benefits
The project delivered measurable benefits to the client:
- Improved pipeline reliability
- Reduced maintenance requirements
- Compliance with oil & gas safety standards
- Confidence in long-term valve performance
Our Customer Review
Project Head (Nigeria)
“C-Way Engineering Exports supplied API 6D ball, gate, and check valves for our onshore pipeline project in Nigeria. The valves fully met our technical requirements and performed well during testing and commissioning. Delivery was on schedule, and coordination with their team was smooth throughout the project.”
— Engr. Ibrahim Musa
Project Head – Onshore Oil & Gas Pipeline Project, Nigeria
Procurement Manager (Africa Region)
“We worked with C-Way Engineering Exports for the supply of API 6D pipeline valves on a Nigeria project. All documentation was provided as required, and the valves arrived in good condition. Installation and commissioning were completed without any issues.”
— Mr. Samuel Okafor
Procurement Manager – EPC Contractor (Africa Projects)
Working on this onshore pipeline project in Nigeria alongside EPC teams allowed us to supply API 6D fire-safe ball, gate, and check valves designed for demanding field conditions. Seeing our valves perform reliably under real field conditions is deeply satisfying and reinforces our confidence that we contributed positively to the successful execution and project’s overall success.
If you are planning an onshore or offshore oil and gas pipeline project and are looking for a reliable partner for API 6D fire-safe ball, gate, and check valves, our team at C-Way Engineering Exports would be happy to support you. Feel free to reach out to us to discuss your project requirements, we look forward to working with you.
