Contact Platform Support
Help CenterZhibang Valve Forged Steel Marine Gate Valve DN15-DN200 PN6.4-16MPa For Offshore Platform
Product Spotlights
Related Products
-
DN15-DN200 Forged Steel Marine Gate Valve For Offshore Platform 16MPa Pressure Rating NDT TestedNegotiableMOQ: 1 Unit -
Cast Steel Marine Gate Valve For Desulfurization Tower, DN100, PN16, Rising Stem, Bolted BonnetNegotiableMOQ: 1 Unit
-
Marine Gate Valve For Ship Desulfurization Tower Application, Corrosion Resistant Alloy, Sea Water ServiceNegotiableMOQ: 1 Unit
-
Marine Gate Valve For Desulfurization, 316L Stainless Steel, PN25 Pressure, NPT Threaded End, Standard CompliantNegotiableMOQ: 1 Unit
-
Marine Gate Valve For FGD System, Technical Drawing Provided, 1-Year Free Repair Service, Standard DimensionNegotiableMOQ: 1 Unit
As a professional manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable fluid control solutions for demanding industrial environments. Our Forged Steel Marine Gate Valves are engineered specifically to meet the rigorous challenges of offshore platforms, where safety, durability, and zero-leakage performance are non-negotiable. With an annual export value reaching up to US$1.5 million and a strong presence across global markets from North America to Southeast Asia, we have built a reputation for delivering valves that stand up to corrosive seawater, high pressures, and extreme operational cycles. This product represents our commitment to manufacturing excellence, combining superior forged steel construction with precision machining to ensure long-term, maintenance-free service in critical marine applications.
The Zhibang Forged Steel Marine Gate Valve is designed as a workhorse for isolation services on offshore platforms, including seawater cooling lines, ballast systems, firefighting lines, and various process applications. The choice of forged steel as the primary body material provides exceptional strength and integrity compared to cast alternatives, significantly reducing the risk of casting defects and ensuring superior performance under high-pressure conditions (PN16MPa). The compact and rigid structure of a forged body is ideal for the space-constrained environments typical of marine installations.
Key Features & Technical Advantages:
- Premium Forged Steel Construction: The valve body, bonnet, and wedge are meticulously forged from high-grade materials like A105 carbon steel or ASTM A182 F316/F304 stainless steel. This process aligns the metal grain flow, enhancing mechanical properties such as tensile strength, impact resistance, and fatigue life, which is crucial for withstanding pressure surges and vibration on offshore structures.
- Advanced Sealing Technology: Features a flexible wedge or a solid wedge with Stellite hard-faced seating surfaces. This design ensures a bubble-tight seal in both flow directions, even after numerous cycles. The sealing surfaces are precision machined and lapped to a fine finish, minimizing wear and preventing leakage—a critical factor for environmental protection and operational safety offshore.
- Corrosion & Erosion Resistance: Valves intended for seawater service are often supplied in 316 stainless steel or with specialized coatings like epoxy paint or electroless nickel plating. The stem is typically made from 316 stainless steel or Monel, with a backseat feature that allows for packing replacement under pressure, enhancing maintenance safety.
- Robust Stem & Packing System: Equipped with a rising stem design (OS&Y) for clear visual indication of valve position. The stem threading is outside the fluid cavity, preventing corrosion and contamination. Multiple rings of graphite or PTFE-based packing in a deep stuffing box ensure a reliable stem seal, adjustable via a gland follower.
- Versatile Operation & Actuation: Available with standard handwheel operation for manual control. For remote or automated operation on unmanned platforms, valves can be fitted with gear operators, electric actuators, or pneumatic/hydraulic actuators. The design accommodates these additions without major modification.
- Full Compliance with Marine Standards: Manufactured in accordance with international standards such as API 600 (bolted bonnet steel gate valves), API 6D, and BS 5352. While specific certifications like ABS, DNV, or BV are available upon request, our standard production adheres to the stringent quality protocols required for marine applications.
Detailed Technical Specifications:
| Parameter | Specification |
|---|---|
| Size Range | DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200 |
| Pressure Rating | PN6.4 (Class 400), PN10 (Class 600), PN16 (Class 900) MPa |
| Body Material | Forged A105 (C.S.), Forged F304 (SS304), Forged F316 (SS316), Other alloys on request |
| Seat & Wedge | 13% Cr Stellite faced, 316 SS, or Alloy 20 |
| Stem Material | SS316, SS304, Monel K500, Duplex Stainless Steel |
| End Connection | Flanged (RF, RTJ) per ASME B16.5, Threaded (NPT, BSP) |
| Test Standards | Shell Test: 1.5 x PN; Seat Test: 1.1 x PN per API 598 |
Benefits for Your Offshore Operations:
- Enhanced Safety & Reliability: The forged body's inherent strength reduces failure risks, protecting personnel, assets, and the marine environment. Reliable shut-off minimizes downtime and operational hazards.
- Reduced Lifecycle Cost: Superior materials and construction translate to extended service intervals, lower maintenance requirements, and a longer total service life, offering excellent return on investment.
- Global Supply & Support: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely delivery to projects worldwide. Our experience supplying to diverse markets means we understand regional requirements.
- Customization Flexibility: We can tailor valves to specific project needs, including special material trims, extended bonnets for insulation, locked open/closed devices, and specific coating requirements.
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of a forged steel valve over a cast steel valve for offshore use?
A: Forged steel offers higher mechanical strength, better impact resistance, and a more homogeneous structure with fewer internal defects. This makes it significantly more reliable for the high-pressure, high-vibration, and safety-critical applications found on offshore platforms. -
Q: Can this valve handle seawater service?
A: Yes, when ordered with appropriate materials such as 316 stainless steel or super duplex stainless steel for the body and trim, along with compatible seals and coatings. It is designed specifically for corrosive marine environments. -
Q: Are these valves suitable for subsea applications?
A: The standard valve is designed for above-water installation. For subsea applications, significant design modifications are required (e.g., deep-sea pressure compensation, different seals). Please inquire for specialized subsea valve solutions. -
Q: What is the typical delivery time for an order?
A: For standard sizes and materials, delivery can be within 30-45 days. For large, customized, or special material orders, the lead time may be longer. We provide accurate timelines upon receipt of your detailed inquiry. -
Q: Do you provide actuated versions of this gate valve?
A: Absolutely. We can supply the valve fitted with electric, pneumatic, or hydraulic actuators from reputable brands, complete with mounting brackets and necessary controls. The valve design is prepared for such adaptations. -
Q: What documentation comes with the valves?
A> Standard documentation includes a Material Test Report (MTR), Certificate of Conformity, hydro-test certificate, and detailed packing list. Additional certifications from third-party inspection bodies or specific marine classification societies can be arranged. -
Q: How do I select the correct pressure class (PN6.4, PN10, PN16)?
A> The selection depends on your system's maximum working pressure and design code. PN16 (Class 900) is common for high-pressure seawater pumps and main lines. Our engineering team can assist you based on your P&ID and system parameters. -
Q: What is your company's experience in the marine sector?
A> Established in 2016, Shanghai Zhibang Valve has consistently served the global marine and offshore industry, with our products reaching markets in North America, Europe, Southeast Asia, and the Middle East. Our ISO9001 certification underpins our systematic approach to quality, ensuring products meet international expectations.
Backed by our ISO9001 certification and a proven track record of exporting to over a dozen major global markets, including North America, Europe, and Southeast Asia, Zhibang Valve stands as a dependable partner for your offshore procurement needs. Our valves are not just components; they are integral to the safety and efficiency of your platform's operations. The combination of forged steel robustness, marine-grade material selection, and precision manufacturing delivers a product that mitigates risk and maximizes uptime. We invite you to leverage our manufacturing expertise and global logistics capability, with flexible shipment from multiple Chinese ports, to source reliable valves that meet your technical specifications and project schedules. Contact us today to discuss your requirements, request detailed quotations, or arrange for product samples and testing.
Send Inquiry to This Supplier
You May Also Like
-
Manual Marine Gate Valve For Desulfurization Tower, 4.0MPa Rated, Stainless Steel Body, Socket Weld ConnectionNegotiableMOQ: 1 Unit
-
304 Stainless Steel Marine Gate Valve For Desulfurization Tower, DN50-DN200, PN10-PN40, Flanged EndNegotiableMOQ: 1 Unit
-
Marine Gate Valve For Exhaust Gas Desulfurization, 2205 Duplex Steel, 1.6MPa, Flanged Conn, Full BoreNegotiableMOQ: 1 Unit
-
Duplex Stainless Steel Marine Gate Valve, Acid Resistant, For Flue Gas Desulfurization System, DN80-DN200NegotiableMOQ: 1 Unit
-
Marine Gate Valve For Offshore Desulfurization Scrubber Unit, High Temperature Resistant, Long Service LifeNegotiableMOQ: 1 Unit
-
Marine Gate Valve For Desulfurization Tower With 12-Month Warranty, Mill Test Report Included, Factory DirectNegotiableMOQ: 1 Unit
-
Marine Gate Valve For Ballast Water System Onboard Cargo Ships And TankersNegotiableMOQ: 1 Unit
-
Marine Gate Valve For Ballast Water Treatment In Offshore Platform ApplicationsNegotiableMOQ: 1 Unit
-
Marine Gate Valve For Ballast Water Treatment, Standard Compliant, DN80-DN250 Size RangeNegotiableMOQ: 1 Unit
-
Ductile Iron Marine Gate Valve For Ballast Water Systems, Epoxy Coated, DN50-DN300NegotiableMOQ: 1 Unit
