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Marine Lug Butterfly Valve DN400, Compatible With Saltwater and Corrosive Environments
Product Spotlights
DN400 lug butterfly valve engineered for harsh saltwater and corrosive marine environments. Features corrosion-resistant materials (stainless steel/coated cast iron), durable sealing (EPDM/PTFE), and lug design for easy maintenance. Offers manual, gear, or pneumatic actuation, pressure ratings up to PN25, and is backed by ISO9001 manufacturing. Ideal for offshore, shipbuilding, and seawater treatment applications.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Cast Iron, Stainless Steel, Duplex Stainless Steel
Size/Diameter:
DN400 (400mm)
Connection Type:
Lug
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Cast Iron, Stainless Steel, Duplex Stainless Steel
Size/Diameter
DN400 (400mm)
Connection Type
Lug
Application Environment
Saltwater, Corrosive Marine Environments
Sealing Material
EPDM, PTFE, NBR
Operation Type
Manual, Gear Operated, Pneumatic Actuator
Pressure Rating
PN10, PN16, PN25
Temperature Range
-20°C to +120°C
Standards
ISO9001 Manufacturing Quality System
Optional Features
Locking Device, Indicator, Extended Shaft
As a dedicated manufacturer since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd specializes in producing high-performance valves for demanding industrial and marine applications. Our Marine Lug Butterfly Valve DN400 is engineered specifically to withstand the harsh conditions of saltwater and corrosive environments, offering reliable flow control for offshore platforms, shipbuilding, coastal power plants, and seawater treatment facilities. With an annual export value reflecting our global reach across continents from North America to Africa, we combine rigorous ISO9001 quality management with practical engineering to deliver valves that ensure operational safety and longevity.
Key Product Features & Technical Specifications:
- Robust Construction for Marine Duty: The valve body and disc are available in materials such as cast iron with protective coatings, stainless steel (304/316), or duplex stainless steel, providing exceptional resistance to saltwater corrosion, pitting, and chemical attack.
- Lug Design for Secure Installation: The lug-type connection allows for easy bolting between pipe flanges, facilitating installation and removal without disassembling the entire pipeline, which is crucial for maintenance in marine settings.
- High-Performance Sealing System: The seat is made from elastomers like EPDM or PTFE, compatible with seawater and a wide range of corrosive fluids, ensuring tight shut-off and minimal leakage even under variable pressure.
- Versatile Actuation Options: The valve can be operated manually via a handwheel or lever, or equipped with gear operators or pneumatic actuators for remote or automated control, adaptable to different system requirements.
- Optimized Flow Characteristics: The disc design minimizes flow turbulence and pressure drop, supporting efficient fluid handling in large-diameter pipelines common in marine applications.
Technical Parameters Table:
| Parameter | Specification |
|---|---|
| Nominal Diameter (DN) | 400 mm |
| Pressure Rating (PN) | PN10, PN16, PN25 (selectable) |
| Body Material Options | Cast Iron, Stainless Steel 304/316, Duplex Stainless Steel |
| Seat Material Options | EPDM, PTFE, NBR |
| Temperature Range | -20°C to +120°C (depending on seat material) |
| Connection Standard | Lug type, compatible with standard flange dimensions |
| Operation Type | Manual (Handwheel/Lever), Gear Operated, Pneumatic Actuator (optional) |
| Surface Treatment | Epoxy Coating, Galvanization, or Passivation for stainless steel |
Benefits for Your Operations:
- Enhanced Durability in Corrosive Settings: The specialized material selection and protective treatments significantly extend service life, reducing replacement frequency and maintenance costs in saltwater exposure.
- Simplified Installation and Maintenance: The lug design permits valve isolation and replacement without full pipeline disassembly, saving time and labor during offshore or shipboard repairs.
- Reliable Sealing Performance: High-quality elastomer seats provide consistent leak-tight closure, protecting system integrity and preventing fluid loss or contamination.
- Flexible Configuration: Customers can choose from various materials, actuation methods, and pressure ratings to match specific project requirements, ensuring optimal system integration.
- Global Supply Assurance: With major shipment ports like Shanghai, Guangzhou, Hongkong, and Beijing, and a presence in markets worldwide, we ensure timely delivery and logistical support for international projects.
Trust & Performance Backing:
Shanghai Zhibang Valve Manufacture Co., Ltd operates under a certified ISO9001 quality management system, ensuring every Marine Lug Butterfly Valve DN400 meets stringent production standards. Our annual export volume of US$1 Million to US$1.5 Million demonstrates consistent demand and customer satisfaction across diverse regions including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, and the Middle East. This valve embodies our commitment to providing corrosion-resistant, reliable solutions for challenging marine applications. By choosing our product, you gain a durable component backed by manufacturing expertise and global supply chain capability. Contact us today to discuss your specifications or request a quotation.
Frequently Asked Questions (FAQ):
-
Q: What makes this butterfly valve suitable for saltwater environments?
A: The valve utilizes corrosion-resistant body materials (like stainless steel) and sealing elastomers (such as EPDM or PTFE) that are specifically chosen to withstand the chemical aggression and salinity of seawater, preventing rapid degradation. -
Q: Can this DN400 valve be used with other corrosive fluids besides seawater?
A: Yes, depending on the material configuration selected. For example, a PTFE seat and stainless steel body can handle many acidic, alkaline, or chemical-laden fluids. Please consult with us for specific fluid compatibility. -
Q: What is the advantage of a lug-type connection over a wafer-type?
A: Lug butterfly valves have threaded holes (lugs) on both sides, allowing them to be bolted directly between two pipe flanges. This design supports the valve independently, making it easier to install or remove for maintenance without affecting the entire pipeline assembly, which is beneficial in space-constrained or critical marine systems. -
Q: Is the valve available with automated actuation?
A: Yes, automated operation is an optional feature. The valve can be fitted with pneumatic actuators (or other types upon request) for integration into remote-controlled or automated fluid management systems. -
Q: What pressure ratings are typically offered for this size?
A: Common pressure ratings include PN10, PN16, and PN25. The appropriate rating should be selected based on your system's maximum operating pressure to ensure safe and reliable performance. -
Q: How does the ISO9001 certification impact product quality?
A: Our ISO9001 certification signifies a systematic approach to quality management throughout manufacturing processes—from material sourcing to final testing. It helps ensure consistent product dimensions, performance, and reliability, providing customers with a measurable standard of quality assurance. -
Q: Can you provide custom configurations or different sizes?
A: As a manufacturer, we offer customization options including different materials, seat types, actuation methods, and even other nominal diameters. The DN400 is a standard size, but we produce a range of sizes to meet various project needs. -
Q: What is the typical delivery lead time for this product?
A: Lead times depend on order quantity and specific configuration. With multiple shipment ports (Shanghai, Guangzhou, Hongkong, Beijing) and an established export operation, we strive to provide efficient delivery schedules. Please inquire for current lead time estimates.
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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