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Help CenterOffshore-Grade API 6D Marine Ball Valve Supplied With Full Documentation and Traceability
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As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is dedicated to providing high-performance fluid control solutions for the demanding offshore and marine industries. Our Offshore-Grade API 6D Marine Ball Valve is engineered to meet the rigorous challenges of seawater, harsh weather, and corrosive environments, ensuring reliable isolation and control in critical pipeline systems on platforms, FPSOs, and subsea applications. We understand that in offshore operations, failure is not an option, which is why every valve is supplied with complete documentation and full material traceability, giving you the confidence and compliance required for your projects.
This valve is designed from the ground up for marine service, incorporating features that address common offshore failure points. The robust construction and material selection are tailored to resist corrosion from saltwater, hydrocarbons, and other aggressive media.
- Full Bore & Reduced Bore Designs: Available to suit your specific flow requirements and pressure drop considerations.
- Anti-Blowout Stem: A critical safety feature that prevents the stem from being ejected under pressure, ensuring operator safety and environmental protection.
- Extended Bonnet & Stem: Optional extended versions are available for applications requiring insulation or for burying the valve, protecting the operating mechanism from external elements.
- Double Block and Bleed (DBB) Function: Provides positive isolation and allows for the verification of seal integrity, a vital feature for maintenance and safety procedures.
- Low Torque Operation: Precision-machined components and advanced seat materials ensure smooth, low-torque operation even after prolonged periods in the open or closed position, reducing wear on actuators.
- Cavity Pressure Relief: An essential design element for ball valves in liquid service. If pressure builds in the body cavity due to thermal expansion, the design safely relieves it to the low-pressure side, preventing seal damage and body rupture.
The technical specifications of our API 6D Marine Ball Valve are detailed below. Custom configurations are available upon request to meet your specific project datasheets.
| Parameter | Specification / Option |
|---|---|
| Design & Manufacturing Standard | API 6D, ASME B16.34, ISO 17292 |
| Pressure-Temperature Rating | ASME B16.34, Classes 150, 300, 600, 900, 1500, 2500 |
| Face-to-Face Dimensions | API 6D, ASME B16.10, ISO 5752 |
| Flange End Standards | ASME B16.5, ASME B16.47, ISO 7005 |
| Fire Safe Certification | Compliant with API 607 / API 6FA / ISO 10497 (Testing available upon request) |
| Body & Trim Materials | A216 WCB, A352 LCB, A351 CF8/CF8M, Duplex 2205/2507, Alloy 20, Hastelloy |
| Seat & Seal Materials | PTFE, RPTFE, PEEK, Metal (Stellite), Graphite |
| Operational Temperature Range | -50°C to +200°C (wider ranges achievable with specific material combinations) |
The primary advantage of choosing our valve lies in its documentation and traceability package. Each valve is supplied with a comprehensive dossier that typically includes:
- Mill Test Certificates (MTC) / Material Certificates 3.1 for all pressure-containing parts.
- Detailed Dimensional Inspection Report.
- Hydrostatic and Shell Test Reports per API 598/API 6D.
- Fire Test Certificate (if specified and performed).
- Certificate of Conformity.
- Packing List and Manual.
- Full Material Traceability from raw material heat number to the finished valve serial number.
This level of documentation is not just paperwork; it is a critical component for your project's quality assurance, regulatory compliance (for class societies like DNV, ABS, BV, etc.), and future maintenance. It provides a complete lifecycle record, simplifying audits and ensuring spare part compatibility years down the line.
With an annual export value between US$1 Million and US$1.5 Million, Shanghai Zhibang has proven its capability to reliably supply quality products to a global clientele across North America, South America, Europe, Asia, Africa, and Oceania. Our operations are backed by an ISO9001 certified quality management system, ensuring consistent manufacturing processes and product quality. We offer flexible shipping from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, facilitating smooth logistics to your project site anywhere in the world. For your next offshore, marine, or other critical service application, choose a valve supplier that provides not just a product, but a verifiable, documented solution. Contact us today with your specifications for a detailed quotation and technical support.
Frequently Asked Questions (FAQ)
Q1: What does "API 6D" specifically mean for this ball valve?
A1: API 6D is the American Petroleum Institute specification for pipeline and piping valves. Compliance means the valve is designed, manufactured, and tested according to stringent industry standards for dimensions, pressure ratings, materials, and performance, making it suitable for demanding oil, gas, and petrochemical pipeline services, including offshore.
Q2: Is this valve suitable for subsea applications?
A2: Our standard offering is designed for topside offshore and marine use. For subsea applications, specific design modifications, materials, and testing (like hyperbaric testing) are required. We can develop subsea-grade ball valves based on your detailed project requirements and relevant standards (API 17D, etc.).
Q3: Can you provide valves with specific NACE MR0175/ISO 15156 compliance for sour service?
A3: Yes. We can supply valves with materials and hardening processes that meet the requirements for sour service (H2S-containing environments). This must be specified at the time of ordering to ensure correct material sourcing and treatment.
Q4: What is included in the "full documentation" package?
A4: The standard package includes Material Test Certificates, Dimensional Report, Pressure Test Reports, and a Certificate of Conformity. For an additional cost, we can provide more extensive documentation like NDE reports (UT, RT, MPI), full IMR (Inspection and Test Plan) witness, and certifications from third-party inspection agencies.
Q5: How do you ensure material traceability?
A5: Every major component (body, ball, stem) is marked with a unique heat number/lot number from the steel mill. These numbers are recorded in our system and on the MTCs. The final assembled valve receives a unique serial number, linking it to all component records, creating a complete chain of custody.
Q6: What actuator options are available, and can you supply them?
A6: We can configure the valve for manual operation (lever or gear), or prepare it for the mounting of pneumatic, hydraulic, or electric actuators. We have partnerships with major actuator brands and can supply a fully assembled and tested actuated valve package if required.
Q7: What is your lead time for an order of 10 pieces of Class 300, 8" valves?
A7: Lead times vary based on material grade, configuration complexity, and current production schedule. For standard carbon steel configurations, typical lead time is 8-12 weeks. We provide a firm delivery schedule upon order confirmation. Expedited production may be available.
Q8: Do you offer painting and coating services for offshore corrosion protection?
A8: Absolutely. We offer various coating systems as per client specifications, including standard epoxy paint, high-performance epoxy/polyurethane systems, and even specialized coatings like thermal spray aluminum (TSA) for superior corrosion resistance in splash zones.
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