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Help CenterMarine Explosion Proof Electric Gate Valve With Mill Test Report and 2-Year Warranty
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As a leading manufacturer with a strong commitment to quality and safety, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our Marine Explosion Proof Electric Gate Valve. Engineered for the most demanding offshore and marine environments, this valve combines robust construction with certified explosion-proof electric actuation to ensure reliable flow control where safety is non-negotiable. Backed by our ISO9001-certified production system and supported by a global supply network from major Chinese ports, we deliver a product that meets stringent international standards. Our 2-year warranty and provision of a Mill Test Report underscore our confidence in the product's durability and traceability, offering you a dependable solution for critical applications.
This valve is specifically designed to handle the harsh conditions found in marine, oil & gas, and chemical processing industries. Its primary function is to provide a tight shut-off for pipelines carrying various media, from seawater and crude oil to aggressive chemicals. The integration of an explosion-proof electric actuator allows for remote or automated operation, eliminating the need for manual intervention in hazardous areas and significantly enhancing operational safety and efficiency.
Key Features and Technical Advantages:
- Certified Explosion-Proof Design: The electric actuator is housed in a rugged enclosure designed to contain any internal explosion, preventing it from igniting the surrounding hazardous atmosphere. This is crucial for Zone 1 and Zone 2 hazardous areas on ships and offshore platforms.
- Superior Corrosion Resistance: Available in a range of materials including cast steel with specialized coatings, stainless steel (CF8, CF8M), and duplex steel, offering excellent resistance to seawater corrosion, erosion, and chemical attack.
- Robust Construction for High Pressure: The valve body and gate are engineered to withstand high pipeline pressures, with pressure classes available from Class 150 to Class 2500, ensuring suitability for a wide array of system requirements.
- Reliable Sealing Performance: Features a flexible wedge or solid wedge design with precision-machined seats (often Stellite hard-faced) to ensure bubble-tight sealing and long service life, even after numerous cycles.
- Remote Operation and Control: The electric actuator enables integration into Distributed Control Systems (DCS) or can be operated via local push-button stations, providing precise control and real-time status feedback (open/close/torque).
- Full Documentation and Traceability: Each valve is supplied with a comprehensive Mill Test Report (MTR) that details material chemical composition, mechanical properties, and non-destructive test results, ensuring full material traceability and quality verification.
Technical Specifications at a Glance:
| Parameter | Specification Range |
| Valve Size | 1/2" to 24" (DN15 to DN600) |
| Pressure Class | Class 150, 300, 600, 900, 1500, 2500 (PN10-PN420) |
| Body Material | WCB, LCB, CF8, CF8M, Duplex 2205, Customizable |
| Actuator Power Supply | 24V DC, 110V AC, 220V AC, 380V AC, 440V AC |
| Operating Temperature | -29°C to 425°C (-20°F to 800°F) depending on material |
| Flange Standard | ANSI B16.5, ASME B16.47, DIN, JIS, GB, Customizable |
| End Connection | Flanged (RF, RTJ), Buttweld, Socket Weld, Threaded (NPT, BSP) |
| Seat & Seal Material | Stellite, 13% Cr, EPTFE, Graphite, Customizable |
Benefits for Your Operations:
- Enhanced Safety: Mitigates the risk of fire and explosion in volatile environments, protecting personnel and assets.
- Reduced Operational Costs: Remote operation minimizes manpower requirements for valve operation in remote or dangerous locations.
- Minimized Downtime: Durable construction and reliable performance lead to fewer failures and maintenance interventions.
- Regulatory Compliance: The design and supporting documentation (MTR) help in meeting the stringent certification requirements of marine classification societies and safety regulations.
- Long-Term Investment: The 2-year warranty provides peace of mind and protects your investment against manufacturing defects.
With nearly a decade of manufacturing expertise since 2016 and an annual export value reflecting our global reach, Shanghai Zhibang Valve has established itself as a trusted partner for industrial valve solutions. Our products reach critical markets worldwide, from North America and Europe to Southeast Asia and the Middle East, proving their reliability across diverse operating conditions. Choosing our Marine Explosion Proof Electric Gate Valve means selecting a product backed by a certified quality system, comprehensive after-sales support, and a commitment to performance that safeguards your most critical processes. Contact us today to discuss your specific requirements and experience the Zhibang difference in quality and service.
Frequently Asked Questions (FAQ)
Q1: What exactly does "explosion-proof" mean for this electric gate valve?
A1: "Explosion-proof" means the electric actuator's enclosure is designed and certified to withstand an internal explosion of specific gases or dusts without allowing the flames or hot gases to escape and ignite the surrounding hazardous atmosphere. It contains and cools the explosion, making it safe for use in designated hazardous areas.
Q2: Can this valve be used in seawater applications?
A2: Yes, it is specifically designed for marine environments. We offer material options like stainless steel (CF8M/316) and duplex steel, which provide excellent corrosion resistance against seawater. The specific material grade should be selected based on the chloride content and temperature of your application.
Q3: What is included in the Mill Test Report (MTR)?
A3: The MTR is a material certificate that provides traceability and verification. It typically includes the heat number, material grade, chemical composition analysis, mechanical property test results (tensile strength, yield strength), and often the results of non-destructive tests like ultrasonic or radiographic examination performed on the castings.
Q4: Is the electric actuator waterproof as well?
A4: The explosion-proof actuator typically also meets a certain Ingress Protection (IP) rating, such as IP67, which signifies it is dust-tight and protected against temporary immersion in water. The exact IP rating can be specified according to your project requirements.
Q5: How does the 2-year warranty work?
A5: Our warranty covers defects in materials and workmanship under normal use and service conditions for a period of two years from the date of shipment. Should a covered defect arise, we will repair or replace the valve or component at our discretion. Proper installation, operation, and maintenance as per our guidelines are required to keep the warranty valid.
Q6: Can you provide valves with specific flange standards or face-to-face dimensions?
A6: Absolutely. We regularly manufacture valves to major international standards like ANSI, ASME, DIN, JIS, and GB. Custom requirements for flange standards, pressure ratings, face-to-face dimensions, and even special coatings can be accommodated. Please provide your detailed specifications for a quotation.
Q7: What is the typical lead time for an order?
A7: Lead time depends on the valve specifications, size, material, and order quantity. Standard configurations may have shorter lead times, while custom-engineered valves require more time. We strive to provide accurate lead time estimates upon receipt of your inquiry and work efficiently to meet project deadlines.
Q8: Do you offer technical support for installation and maintenance?
A8: Yes, we provide comprehensive technical documentation including installation, operation, and maintenance manuals with each shipment. Our engineering team is also available to offer technical support and guidance for installation, commissioning, and troubleshooting if needed.
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