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Marine Double Eccentric Butterfly Valve With Technical Support and Spare Parts Available
Product Spotlights
Our Marine Double Eccentric Butterfly Valve combines a proven low-torque design with genuine spare parts support and ISO9001-certified quality. Built with corrosion-resistant materials for seawater, it offers bubble-tight sealing and long service life. With technical assistance from a reliable Chinese manufacturer exporting globally, you get a cost-effective, maintainable solution for marine piping systems.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Application:
Other, Marine
Body Material:
Ductile Iron / Stainless Steel (optional)
Seat Material:
PTFE / RTFE / Metal Seated (optional)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Marine
Body Material
Ductile Iron / Stainless Steel (optional)
Seat Material
PTFE / RTFE / Metal Seated (optional)
Size Range
DN50 – DN1200 (2“ – 48“)
Pressure Rating
PN10 – PN40 / Class 150 – 300
Operation Type
Manual / Pneumatic / Electric (customizable)
Connection Type
Wafer / Lug / Flanged
Certification
ISO9001:2015
Temperature Range
-20°C to +200°C (depending on seat)
Spare Parts Availability
Full range of seals, discs, stems
As a leading manufacturer of industrial valves, Shanghai Zhibang Valve Manufacture Co., Ltd supplies Marine Double Eccentric Butterfly Valves designed to withstand the harsh conditions of seawater and marine environments. Our double eccentric design ensures reliable shut-off and long service life, even at high pressures and temperatures. With ISO9001 certified manufacturing and a dedicated technical support team, we provide complete valve solutions including genuine spare parts for easy maintenance.
Key Features & Advantages
- Double Eccentric Design – Shaft offset from center and seat line reduces friction, minimizes wear, and allows bubble-tight sealing even after thousands of cycles.
- Corrosion-Resistant Materials – Body available in ductile iron with epoxy coating, stainless steel (CF8/CF8M), or duplex steel for seawater resistance.
- Low Torque Operation – Requires smaller actuators, saving energy and cost.
- Bi-Directional Sealing – Suitable for flow in either direction, ideal for ballast and cooling water systems.
- Full Spare Parts Support – We stock disc, seat, stem, bushings, and actuator spares to minimize downtime.
- Customizable Actuation – Manual handle, gearbox, pneumatic, or electric actuator available upon request.
- Compliance with Industry Standards – Designed to API 609, ISO 17292, and other marine classification rules (optional).
Technical Specifications (Typical Parameters)
| Parameter | Value |
| Size Range | DN50 – DN1200 (2" – 48") |
| Pressure Rating | PN10/16/25/40, Class 150/300 |
| Body Materials | Ductile Iron GGG40/50, CF8, CF8M, Duplex 2205 |
| Seat Material | PTFE, RTFE, Metal (Stellite/316L) |
| Temperature Range | -20°C to +200°C |
| End Connections | Wafer, Lug, Flanged (DIN/ANSI/JIS) |
| Leakage Rate | API 598 zero leakage (bubble-tight) |
Spare Parts & Technical Support
We understand that marine valves must operate without failure. That's why every Marine Double Eccentric Butterfly Valve is supplied with a comprehensive set of spare parts, including replacement seat rings, disc O-rings, stem bushings, and actuator repair kits. Our technical support team provides installation guidance, troubleshooting, and remote assistance to ensure your system runs smoothly. Spare parts are available for every valve we ship, so you can keep a minimal inventory and avoid extended downtime.
Trusted by Marine Industries Worldwide
Since our establishment in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd has exported over US$1 million to US$1.5 million worth of valves annually to markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and beyond. We are a certified ISO9001 manufacturer, and our quality management system ensures consistent product reliability. Whether you need a single valve for a repair or a large order for a new vessel, we deliver with fast lead times from our Shanghai factory. Choose Zhibang for durable, precisely engineered valves and responsive after-sales support. Contact us today to request a quote or technical datasheet.
Frequently Asked Questions (FAQ)
-
Q: What makes a double eccentric valve different from a concentric butterfly valve?
A: In a double eccentric design, the valve shaft is offset from both the centerline of the disc and the sealing line. This reduces friction between the disc and seat during opening, extends seat life, and provides tighter shut-off – critical for marine applications with frequent cycling. -
Q: Can you supply valves with marine classification certificates (e.g., Lloyd's, DNV, ABS)?
A: Yes, we can manufacture valves according to marine society requirements upon request. Please specify the desired classification when ordering, and we will provide the necessary documentation. -
Q: What spare parts are typically included with the valve?
A: Standard spare parts include a seat ring, disc seals (O-rings), stem bushings, and a mounting kit. For actuator-equipped valves, we also supply a service kit with seals and springs. Custom spare parts sets are available. -
Q: How do I determine the correct valve size and material for my seawater system?
A: Our technical support team can help you select based on pipe diameter, pressure, temperature, and fluid composition. For seawater, we recommend duplex stainless steel or nickel-aluminum bronze discs, combined with a PTFE or RTFE seat for corrosion resistance. -
Q: Do you provide installation or commissioning support?
A: Yes, we offer remote video guidance and detailed installation manuals. For large projects, on-site technical support can be arranged (cost depends on location). -
Q: What is the typical lead time for a standard valve order?
A: For standard sizes (DN50-DN300) with common materials, lead time is 15–25 working days. For larger sizes or special materials, please allow 30–40 working days. We also maintain a small stock of popular models for urgent needs. -
Q: Are there any minimum order quantities (MOQ)?
A: We accept orders starting from 1 piece for standard valves. However, for non-standard dimensions or special materials, a small MOQ may apply – please confirm with our sales team. -
Q: How do you ensure valve quality before shipment?
A: Every valve undergoes hydrostatic shell test, seat leakage test (bubble-tight per API 598), and visual inspection. We issue a test certificate for each batch. Our ISO9001 quality system guarantees traceability and consistency.
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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