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Home > Industrial Equipment & Components > Valve > Gate Valve > Customized Non Standard Marine Gate Valve for Offshore Platform Seawater Pipeline System Hazardous Area
Customized Non Standard Marine Gate Valve for Offshore Platform Seawater Pipeline System Hazardous Area
Product Spotlights
Engineered for offshore seawater systems in hazardous areas, this customized marine gate valve offers superior corrosion resistance with materials like Duplex steel and NAB. It features safety designs (anti-static, blowout-proof stem) for hazardous zone compliance and is fully customizable in pressure class, size, connection, and actuation per API/ISO standards. Ensures long-term reliability, safety, and reduced lifecycle costs for critical platform pipelines.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Carbon Steel, Stainless Steel, Duplex, Super Duplex, Nickel Aluminum Bronze
Application:
Other, Seawater Cooling Lines
Pressure Rating:
Class 150 to Class 2500 (ANSI), PN10 to PN420
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Carbon Steel, Stainless Steel, Duplex, Super Duplex, Nickel Aluminum Bronze
Application
Other, Seawater Cooling Lines
Pressure Rating
Class 150 to Class 2500 (ANSI), PN10 to PN420
Size Range
DN50 to DN600 (NPS 2“ to 24“)
End Connection
Flanged (RF, RTJ), Butt Weld, Screwed
Operation Type
Manual (Handwheel, Gear), Pneumatic, Electric, Hydraulic
Design Standard
API 600, API 6D, ASME B16.34, ISO 10434
Fire Safe Design
API 607 / API 6FA Fire Safe Certified (Optional)
Special Features
Anti-Blowout Stem, Rising Stem, Bolted Bonnet, Flexible Wedge
As a professional manufacturer with ISO 9001 certification, Shanghai Zhibang Valve specializes in engineering robust fluid control solutions for the most demanding offshore environments. Our Customized Non-Standard Marine Gate Valves are meticulously designed to meet the unique and stringent requirements of seawater pipeline systems on offshore platforms, particularly in designated hazardous areas. We understand that reliability and safety are non-negotiable in such critical applications. This product represents our commitment to providing valves that not only seal securely under high pressure and corrosive conditions but also offer long-term operational integrity, reducing maintenance frequency and total cost of ownership for our global clients.
Product Highlights & Technical Advantages:
- Engineered for Extreme Service: These gate valves are built to withstand the harsh combination of corrosive seawater, high operating pressures, and the abrasive nature of potential sand or debris in offshore pipelines.
- Hazardous Area Compliance: Designed with safety as the foremost priority, the valves feature anti-static devices, blowout-proof stems, and can be configured with certified actuators for safe operation in Zone 1 or Zone 2 hazardous areas, preventing ignition risks.
- Superior Corrosion Resistance: We utilize premium materials like Duplex/Super Duplex stainless steels, Nickel Aluminum Bronze (NAB), and specially coated carbon steels to combat pitting, crevice corrosion, and erosion, ensuring a prolonged service life even in chlorinated seawater.
- Custom-Configured Solutions: Recognizing that 'one size fits all' does not apply offshore, we offer extensive customization. From non-standard dimensions and pressure classes to specific trim materials, stem packing, and actuation methods, the valve is tailored to your system's exact P&ID specifications.
Detailed Specifications & Configurations:
The table below outlines some of the key customizable parameters for our marine gate valves. All specifications are subject to engineering review based on your specific datasheet.
| Parameter | Options & Specifications |
|---|---|
| Primary Body Material | WCB, LCB, CF8M (316SS), F51 (Duplex 2205), F53 (Super Duplex 2507), C95800 (NAB) |
| Pressure Class | ANSI Class 150, 300, 600, 900, 1500, 2500 / PN10, PN16, PN25, PN40, PN64, PN100, PN160, PN250, PN420 |
| Seat & Trim Material | Stellite 6 hard-faced, 316SS, Monel, Alloy 20, NAB; Resilient seated options available |
| End Connection | RF Flange (ASME B16.5), RTJ Flange, Butt Weld (ASME B16.25), Screwed (NPT) |
| Actuation Method | Manual Handwheel, Bevel Gear, Pneumatic (ATEX certified), Electric Motor (Ex-d, Ex-e), Hydraulic |
| Design & Testing Standard | API 600/6D, ASME B16.34, ISO 10434. NDE testing (PT, MT, RT) per project requirements. |
Benefits for Your Offshore Operation:
- Enhanced System Safety: The robust design and hazardous area features mitigate risks, protecting personnel, assets, and the environment.
- Reduced Lifetime Cost: The use of high-grade corrosion-resistant materials minimizes erosion and failure, leading to fewer replacements and lower maintenance expenses over the valve's lifecycle.
- Optimized Performance: Custom engineering ensures the valve matches your system's flow characteristics and pressure drops, improving overall pipeline efficiency.
- Simplified Logistics & Support: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely delivery worldwide. Our technical team provides comprehensive support from selection to installation.
Our commitment to quality is backed by our ISO 9001 certification and proven by our products' performance across diverse markets including North America, Europe, Southeast Asia, and the Middle East. With an annual export value reflecting consistent global trust, we have the experience and capacity to be your reliable partner for critical marine valves. Don't compromise on the integrity of your seawater pipeline system. Contact us today to discuss your project requirements and receive a detailed, customized quotation. Let our engineering expertise provide you with a valve solution that delivers safety, durability, and value.
Frequently Asked Questions (FAQ)
-
Q: What makes a gate valve suitable for a 'hazardous area' on an offshore platform?
A: Hazardous area valves incorporate specific safety features to prevent ignition of flammable atmospheres. Key elements include anti-static design to dissipate charge, a blowout-proof stem that cannot be ejected under pressure, and the option for certified flameproof (Ex-d) or increased safety (Ex-e) actuators. Materials are also selected to avoid sparking upon impact. -
Q: Can you supply valves that meet both API and ISO standards?
A: Yes, absolutely. Our standard manufacturing and testing protocols are aligned with major international standards like API 600, API 6D, and ISO 10434. We can provide documentation and testing certificates (e.g., NDE reports, pressure test charts) compliant with the standards specified in your project requirements. -
Q: How do you determine the best material for seawater service?
A: Material selection depends on seawater temperature, chlorination, flow velocity, and the presence of sand. We typically recommend Duplex stainless steels (F51/F53) for high strength and chloride resistance, Nickel Aluminum Bronze for excellent cavitation and erosion resistance, or coated carbon steel for cost-effective solutions in certain conditions. Our engineers will analyze your service data to advise. -
Q: What is your lead time for a customized, non-standard valve order?
A: Lead times vary based on complexity, size, and material availability. For standard customized designs, typical lead times range from 8 to 16 weeks. We provide a firm schedule upon order confirmation and maintain transparent communication throughout the manufacturing process. -
Q: Do you offer full actuation packages?
A: Yes, we provide complete valve packages. We can source and mount pneumatic, electric, or hydraulic actuators from reputable brands, wire them, and perform pre-commissioning functional tests. We ensure the entire assembly is compatible and ready for installation. -
Q: What kind of documentation do you provide with the valves?
A: We supply a comprehensive documentation package including Material Test Certificates (MTC), Certificate of Conformity, Pressure Test Report, Dimensional Drawing, Installation & Maintenance Manual, and Packing List. Additional certification like NORSOK or ATEX is available upon request. -
Q: How do you handle quality control during manufacturing?
A> Our ISO 9001 system governs every stage. Quality checks include raw material inspection, in-process dimensional verification, non-destructive examination (PT, MT, UT, RT as required), final hydrostatic/pneumatic shell and seat tests, and a thorough final inspection. Each valve is traceable via a unique serial number. -
Q: Can you accommodate very short delivery requests for urgent projects?
A: We maintain a limited inventory of common materials and sizes for emergency needs. For truly urgent non-standard requirements, we offer expedited production services. Please contact us with your specifics, and we will explore all options to meet your critical timeline.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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