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Help CenterGB/T Electric Marine Gate Valve With Mill Test Report, DN200 Size Available
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As a leading manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance GB/T Electric Marine Gate Valve. Engineered for demanding marine environments, this valve combines robust construction with reliable electric actuation for precise flow control in critical shipboard systems. With an annual export value reflecting our global reach, we supply durable and certified valves that meet the stringent requirements of shipbuilders and marine engineers worldwide. Our commitment to quality is backed by comprehensive Mill Test Reports, ensuring traceability and material integrity for every unit shipped from major ports like Shanghai and Hong Kong.
This Electric Marine Gate Valve is specifically designed to withstand the corrosive and high-pressure conditions found in marine applications. Its primary function is to provide a tight shut-off for pipelines carrying seawater, ballast, fuel, and other fluids on vessels. The integration of an electric actuator allows for remote operation and automation, which is essential for modern ship design where manual valve operation in hard-to-reach areas is impractical or unsafe.
Key Product Highlights & Technical Advantages:
- Corrosion-Resistant Construction: Manufactured from high-grade cast steel or stainless steel, the valve body and internal components are built to resist saltwater corrosion, ensuring a long service life even in the harshest marine atmospheres.
- Reliable Electric Actuation: The electric actuator provides smooth and dependable opening/closing. Options include standard on/off control or modulating control for flow regulation, with various voltage inputs (e.g., 24V DC, 110V AC, 220V AC, 380V AC) available to suit different shipboard power systems.
- Robust Sealing Performance: Features a flexible wedge or solid wedge gate design paired with reinforced sealing materials (such as EPDM or PTFE) to achieve a bubble-tight seal, preventing leaks and ensuring system safety.
- Easy Maintenance & Installation: The rising stem design provides a visual indication of valve position. Standard flanged ends (e.g., RF, FF) conform to common pipeline standards, facilitating straightforward installation and integration into existing ship piping networks.
- Comprehensive Quality Documentation: Each valve is supplied with a Mill Test Report (MTR) that details chemical composition and mechanical properties of the materials used, providing essential documentation for classification society approvals and quality assurance protocols.
Detailed Technical Specifications for DN200 Size:
| Parameter | Specification |
| Design & Manufacturing Standard | GB/T (Chinese National Standard) |
| Nominal Size (DN) | 200 (Other sizes are customizable) |
| Pressure Class | PN10, PN16, PN25 (Standard) |
| Connection Type | Flanged (RF/FF), ASME B16.5/EN1092-1 |
| Body Material | WCB (Cast Carbon Steel), CF8/CF8M (Stainless Steel) |
| Seat & Seal Material | Stellite, 13% Cr, or Resilient Seats (EPDM/NBR/PTFE) |
| Actuator Type | Multi-turn Electric Actuator |
| Actuator Protection | IP67 (Standard, higher ratings optional) |
| Operating Temperature | -29°C to 425°C (depending on seat material) |
Benefits for Your Marine Projects: Choosing our electric marine gate valve translates into direct operational advantages. The remote electric operation enhances crew safety by eliminating the need for manual handling in confined or hazardous spaces. The reliability of the valve reduces maintenance downtime, while the provided Mill Test Report simplifies the compliance and inspection process with maritime authorities and classification societies like ABS, DNV, BV, or LR. The valve's durability directly contributes to lower total cost of ownership over the vessel's lifecycle.
Our products have gained trust in major global markets, including North America, Europe, Southeast Asia, and Africa, serving a diverse clientele from shipyards to fleet operators. With established shipment channels through key ports, we ensure timely delivery. Our ISO9001 certified manufacturing process is your assurance of consistent quality. For a valve solution that combines marine-grade durability with automated efficiency and full traceability, contact us to discuss your specific DN200 or other size requirements and request a detailed quotation.
Frequently Asked Questions (FAQ):
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Q: What is included in the Mill Test Report (MTR)?
A: The MTR is a material certificate that provides verified data on the chemical composition and mechanical properties (like tensile strength, yield strength, impact values) of the raw materials used for the valve body, bonnet, gate, and stem. It serves as proof of material conformity. -
Q: Can this electric gate valve be used for seawater service?
A: Yes, it is designed for marine applications. For seawater, we typically recommend specific material combinations such as stainless steel (CF8M/316) body with appropriate trim materials to enhance corrosion resistance. Please specify your medium during inquiry. -
Q: Are the electric actuators suitable for hazardous areas on ships?
A: Standard actuators come with IP67 protection. For hazardous zones, we can provide actuators with explosion-proof certifications (Ex d, Ex e) upon request. You need to specify the required zone classification. -
Q: What are the lead times for the DN200 size?
A: Lead times vary based on order quantity and specific configuration (material, actuator specs). Generally, for standard configurations, production can be completed within 30-45 days. We provide accurate timelines upon order confirmation. -
Q: Do you offer valves with different end connections besides flanged?
A: Our standard offering for marine gate valves is flanged ends to match ship piping. However, other connection types like butt-weld ends can be customized based on your technical drawings and requirements. -
Q: How do I select the right pressure class (PN10, PN16, PN25)?
A: The selection depends on your system's maximum working pressure and design standards. PN16 is a common choice for many marine systems. Our engineers can assist you in selecting the appropriate class based on your pipeline design parameters. -
Q: Is the electric actuator reversible (for both open and close directions)?
A: Yes, the standard electric actuator can be configured for clockwise-to-close or clockwise-to-open operation. The direction is typically set before shipment according to your request. -
Q: Can you provide valves certified by specific marine classification societies?
A: While our valves are manufactured to meet marine standards, formal certification by a specific society (e.g., ABS, DNV-GL) usually involves inspection and testing witnessed by their surveyor, which can be arranged for project-based orders. We have experience in supplying valves for class-approved projects.
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