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Home > Industrial Equipment & Components > Valve > Ball Valve > Trunnion Mounted Ball Valve for High-Pressure Marine Systems, DN200 Large Bore, PN25 Rated
Trunnion Mounted Ball Valve for High-Pressure Marine Systems, DN200 Large Bore, PN25 Rated
Product Spotlights
Engineered for high-pressure marine systems, this DN200 Trunnion Mounted Ball Valve (PN25) ensures reliable, low-torque operation and long service life. Its robust trunnion design prevents seat wear, while options for fire-safe construction, corrosion-resistant materials, and various actuators provide a customizable solution for critical offshore applications. Manufactured under ISO9001 with global export experience.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Application:
Other, High-Pressure Marine Systems
Valve Type:
Trunnion Mounted Ball Valve
Connection Type:
Flanged
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, High-Pressure Marine Systems
Valve Type
Trunnion Mounted Ball Valve
Connection Type
Flanged
Nominal Diameter (DN)
200
Pressure Rating (PN)
25
Design Standard
API 6D, API 608
Body Material
Carbon Steel / Stainless Steel
Seat Material
PTFE / Reinforced PTFE / Metal
Operation
Manual Gear / Pneumatic / Electric Actuator
Fire Safe Design
Available
As a professional valve manufacturer since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our engineered solution for demanding high-pressure marine applications: the Trunnion Mounted Ball Valve in DN200 with a PN25 pressure rating. This valve is specifically designed to offer superior reliability, safety, and long service life in critical offshore and marine environments where system failure is not an option. Our extensive experience exporting to global markets, including North America, Southeast Asia, and Europe, underscores our commitment to meeting international standards and the rigorous demands of marine engineering.
Core Product Features & Technical Advantages:
- Trunnion Mounted Design: Unlike floating ball valves, the ball in our valve is fixed and supported by trunnions. This design drastically reduces operating torque and prevents excessive seat wear, making it ideal for high-pressure and large-diameter (DN200) applications. The ball is not forced against the seat by line pressure, ensuring smooth operation even at full rated pressure.
- High-Pressure Integrity (PN25): Engineered for a nominal pressure rating of PN25 (approx. 25 bar), this valve is built to withstand the surges and steady-state pressures common in marine fuel lines, hydraulic systems, and cargo handling systems. The robust construction ensures zero leakage and maintains bubble-tight sealing.
- Large Bore, Full Port Design (DN200): The DN200 (8-inch) size with a full port (full bore) design minimizes pressure drop across the valve, allowing for efficient fluid transfer. This is critical for maintaining flow rates and reducing pumping energy costs in large-scale marine piping systems.
- Enhanced Safety for Marine Use: The valve features a fire-safe design as per API 607/API 6FA standards (optional), where secondary metal seals engage in case of a fire, preventing catastrophic failure. Anti-static devices and blow-out proof stems are standard to ensure operational safety in volatile environments.
- Durable Material Construction: The body and trunnions are typically crafted from ASTM A216 WCB carbon steel or ASTM A351 CF8M stainless steel, offering excellent corrosion resistance against seawater and marine atmospheres. Seat materials like reinforced PTFE or metal provide a wide range of temperature and chemical compatibility.
- Multiple Actuation Options: While supplied with a manual gear operator for direct control, the valve can be easily fitted with pneumatic, hydraulic, or electric actuators for remote operation, which is essential for automated marine systems and hard-to-reach locations.
Technical Specifications & Configuration:
| Parameter | Specification |
| Valve Type | Trunnion Mounted Ball Valve |
| Size (Nominal Diameter) | DN200 (8") |
| Pressure Rating | PN25 (Class 150) |
| Connection | Flanged (RF/RTJ), ASME B16.5 |
| Body Material | WCB Carbon Steel, CF8/CF8M Stainless Steel, Duplex |
| Ball Material | Chrome Plated / Stainless Steel |
| Seat Material | PTFE, RPTFE, PEEK, Metal (Fire Safe) |
| Stem Material | Stainless Steel (17-4PH or equivalent) |
| Design Standard | API 6D, API 608, ISO 17292 |
| Temperature Range | -29°C to +200°C (varies with seat material) |
| Operation | Manual Lever/Gear, Pneumatic, Electric Actuator |
Benefits for Your Marine Project:
- Reduced Lifetime Cost: The trunnion design's low torque and high durability lead to less frequent maintenance, lower actuator sizing requirements, and extended service intervals, providing significant total cost of ownership savings.
- System Reliability: Ensures uninterrupted operation of critical marine systems such as fuel oil transfer, ballast water control, and hydraulic power units, minimizing downtime and operational risks.
- Global Compliance: Manufactured under an ISO9001 certified quality management system, our valves are designed to meet major international standards like API and ISO, facilitating their use in shipbuilding and offshore projects worldwide.
- Flexibility: Available in various material grades and with optional features like fire-safe certification, lockable devices, and different end connections, allowing for customization to fit specific project specifications.
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of a trunnion mounted ball valve over a floating ball valve for high-pressure applications?
A: The key advantage is the fixed ball supported by trunnions. In high-pressure systems (like PN25), line pressure does not push the ball against the seat, resulting in much lower operating torque. This prevents seat distortion and wear, offering greater reliability and longer life in demanding conditions. -
Q: Is this DN200 valve suitable for seawater service?
A: Yes, when ordered with appropriate materials. We recommend stainless steel (CF8M/AISI 316) or duplex stainless steel body and internals for excellent resistance to chloride-induced corrosion from seawater. -
Q: Can this valve be automated?
A: Absolutely. The valve is designed with a standardized mounting pad for easy integration with pneumatic, hydraulic, or electric actuators. We can supply the valve as a complete actuated package ready for installation. -
Q: What is the delivery time for a DN200 PN25 Trunnion Mounted Ball Valve?
A: Standard material configurations typically have a lead time of 4-6 weeks. Expedited production may be available upon request. We ship from major ports like Shanghai, Guangzhou, and Hong Kong for efficient global logistics. -
Q: Do you provide fire-safe certified valves?
A: Yes, we offer fire-safe design options tested to standards such as API 607/6FA. This is a critical feature for marine applications involving flammable fluids, and it can be specified when placing your order. -
Q: What after-sales support do you offer?
A: As a manufacturer, we provide comprehensive technical documentation, including detailed drawings, material certificates, and test reports. We also offer technical support for installation and troubleshooting. -
Q: Are your valves compliant with major classification society rules?
A> Our valves are designed and manufactured to meet the requirements of standards commonly referenced by classification societies like ABS, DNV, LR, and BV. Specific certification can be arranged upon request. -
Q: What is the warranty period for this valve?
A> We stand behind the quality of our products with a standard warranty against defects in material and workmanship. The specific warranty terms are provided with the commercial proposal.
Backed by our established manufacturing expertise since 2016 and a proven track record of exporting over US$1 million in valves annually to diverse markets from North America to Oceania, you can trust Shanghai Zhibang's Trunnion Mounted Ball Valve to deliver performance where it matters most. Our ISO9001 certification is a testament to our consistent quality control processes. For your next high-pressure marine system project requiring reliable, large-bore valving, contact us for a detailed quotation and technical consultation. Let our valves be the dependable component in your critical flow control systems.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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