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DN80-DN500 Marine Rubber Lined Butterfly Valve, Lever/Gear/Actuator Operated
Product Spotlights
Designed for harsh marine environments, this DN80-DN500 butterfly valve features a corrosion-resistant rubber lining for long life handling seawater and chemicals. It offers bubble-tight sealing, low torque operation, and versatile actuation (lever/gear/actuator). Built with durable materials and ISO9001-certified quality, it ensures reliable performance and reduced maintenance for global clients in shipbuilding and industrial applications.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Valve Size Range:
DN80 to DN500
Body Material:
Ductile Iron, Cast Iron, or Carbon Steel
Lining Material:
Natural Rubber, EPDM, or NBR
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Valve Size Range
DN80 to DN500
Body Material
Ductile Iron, Cast Iron, or Carbon Steel
Lining Material
Natural Rubber, EPDM, or NBR
Operation Type
Lever, Gearbox, or Actuator (Pneumatic/Electric)
Connection Type
Wafer or Lug
Pressure Rating
PN10, PN16
Application Field
Marine, Shipbuilding, Offshore, Water Treatment
Sealing Design
Bidirectional, Bubble-tight Seal
Standards
ISO9001 Certified Manufacturing
As a professional valve manufacturer with a strong export footprint, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance DN80-DN500 Marine Rubber Lined Butterfly Valve. Engineered for demanding marine and industrial applications, this valve series combines robust construction with superior sealing technology to ensure reliable flow control in corrosive and abrasive environments. Our commitment to ISO9001-certified manufacturing processes guarantees consistent quality and durability, making these valves a trusted choice for clients across the globe, from North America and Europe to Southeast Asia and beyond.
The core value of our rubber-lined butterfly valve lies in its exceptional corrosion resistance and long service life. The resilient rubber lining acts as a protective barrier, isolating the metallic body from the medium, which is crucial for handling seawater, ballast water, slurry, and various chemical fluids. Available in lever, gear, or actuator-operated configurations, it offers versatile and efficient operation suitable for manual or automated systems.
Key Features & Technical Advantages:
- Superior Corrosion & Abrasion Resistance: The high-quality rubber lining (Natural Rubber, EPDM, or NBR options) provides excellent protection against corrosive media and particle-laden flows, significantly extending valve lifespan.
- Bubble-Tight Sealing Performance: The design ensures a bidirectional, zero-leakage seal, crucial for critical isolation applications in marine systems and water management.
- Low Torque Operation & Easy Maintenance: The streamlined disc design and resilient seat minimize operating torque. The simple construction allows for easy inline maintenance and seat replacement if needed.
- Versatile Operation & Actuation: Choose from manual lever, precision gearbox for higher torque applications, or automated pneumatic/electric actuators for remote control and integration into SCADA systems.
- Robust & Durable Construction: The valve body is manufactured from ductile iron, cast iron, or carbon steel, providing mechanical strength to withstand pipeline stresses and harsh marine conditions.
- Wide Size & Pressure Range: Covering DN80 to DN500 (3" to 20") and pressure ratings of PN10/PN16, this series meets the requirements of most shipboard and offshore piping systems.
The following table outlines the standard specifications for our Marine Rubber Lined Butterfly Valve series:
| Parameter | Specification |
|---|---|
| Valve Size (Nominal Diameter) | DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500 |
| Pressure Rating | PN10, PN16 (Class 150) |
| Body Material | Ductile Iron (Standard), Cast Iron, Carbon Steel (Optional) |
| Lining Material | Natural Rubber (Standard), EPDM, NBR (Optional) |
| Disc Material | Stainless Steel (CF8M/316) or Ductile Iron with Ni-Cr coating |
| Stem Material | Stainless Steel (17-4PH or 304/316) |
| Connection Type | Wafer (Standard), Lug (Optional) |
| Operation Type | Lever, Worm Gear, Pneumatic Actuator, Electric Actuator |
| Temperature Range | -10°C to +80°C (Standard Rubber), up to +120°C (EPDM) |
| Sealing Performance | Bubble-tight, Bidirectional |
Benefits for Your Operations:
- Reduced Maintenance Costs: The corrosion-resistant lining minimizes wear and tear, leading to fewer replacements and lower lifecycle costs.
- Enhanced System Reliability: Leak-proof sealing ensures the integrity of your piping systems, preventing downtime and potential environmental issues, especially critical in marine applications.
- Operational Flexibility: Multiple actuation options allow you to tailor the valve to your specific control needs, from simple manual override to fully automated process control.
- Global Compliance & Sourcing Ease: Manufactured in an ISO9001-certified facility, our valves meet international quality expectations. With major shipment ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely and efficient delivery to your location worldwide.
Trust in Shanghai Zhibang Valve's proven expertise. Established in 2016, we have rapidly grown into a reliable supplier with an annual export value ranging between US$1 Million and US$1.5 Million, serving diverse markets across North and South America, Europe, Asia, Africa, and Oceania. Our deep understanding of marine and industrial requirements is built into every valve we produce. This DN80-DN500 Marine Rubber Lined Butterfly Valve series embodies our commitment to delivering durable, high-performance solutions that stand up to challenging conditions. We encourage you to contact us with your specific size, material, and actuation requirements. Let our team provide you with a competitive quotation and technical support to secure the optimal valve solution for your project.
Frequently Asked Questions (FAQ)
-
Q: What are the main applications for this rubber-lined butterfly valve?
A: It is primarily designed for marine applications such as seawater cooling, ballast systems, firefighting lines, and bilge pumping. It is also suitable for land-based water treatment, slurry handling, and chemical processing where corrosion resistance is needed. -
Q: How do I choose between lever, gear, and actuator operation?
A: Lever operation is cost-effective for manual, easily accessible applications. A gearbox is recommended for larger valve sizes (typically above DN200) or higher differential pressures to reduce required handwheel force. Actuators (pneumatic/electric) are chosen for automated, remote-controlled, or frequently operated systems. -
Q: Can the rubber lining be replaced in the field?
A: Yes, many models in this series are designed with a replaceable resilient seat/lining. This feature allows for maintenance without removing the entire valve body from the pipeline, reducing downtime. -
Q: What is the difference between wafer and lug connection types?
A: Wafer-style valves are installed between two pipe flanges using longer bolts. Lug-style valves have threaded inserts (lugs) on the valve body, allowing it to be bolted directly to each flange, which is beneficial for end-of-line service or when one side of the pipeline needs to be disconnected. -
Q: Are these valves suitable for potable water?
A: Yes, when ordered with a lining material like EPDM that complies with relevant drinking water standards (e.g., WRAS, KTW, NSF/ANSI 61). Please specify your potable water certification requirements when inquiring. -
Q: What is the typical lead time for orders?
A: Lead time depends on order quantity, valve size, and configuration. Standard models are often available from stock or have shorter production cycles. We provide accurate lead time estimates upon receipt of your detailed inquiry. -
Q: Do you offer customized valves outside the DN80-DN500 range?
A: Yes, customization is available upon request. We can discuss requirements for sizes smaller than DN80 or larger than DN500, as well as special materials, pressure ratings, or actuation packages. -
Q: What after-sales support do you provide?
A: We provide comprehensive technical documentation, including installation and maintenance manuals. Spare parts like seals, linings, and stems are available. Our technical team is ready to assist with installation guidance or troubleshooting if needed.
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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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