ALL CATEGORIES

Seller Center
- Product Management
  
  Post Product
  
  Manage Products
  
  Featured Products
- Blog Management
  
  Post Blog Article
  
  Manage Blog Articles
  
  Manage Blog Categories
- Inquiry Management
  
  My Inquiries
  
  Buying Requests
- Analytics Center
  
  Performance Dashboard
  
  Product Analytics
  
  Visitor Analytics
Connect Your Store to WeChat

Follow Our Official Service Account
Manage Products & Inquiries Anywhere
Seller Services

Seller Services

Goldsupplier.com: 20 years of Global Trade Expertise, Empowering Your Business to Go Global!

Join GoldSupplier.com

Free & Instant Registration

Showcase Company & Products

Access Global Buying Requests

Register Now

Activate Verified Supplier Membership

Priority Verified Visibility

Claim Exclusive Buying Requests

Automated Multi-language Store

Verified Now

Launch Your EasyOcean Website

Full-Service Website Management

Google Page 1 Guarantee

Enhanced Brand Credibility

Launch Now
Buyer Services
Post Buying Request

Browse Product Categories

Featured Suppliers
Contact Platform Support

Help Center

Home > Industrial Equipment & Components > Valve > Butterfly Valve > Wafer & Flanged Marine Butterfly Valve With EPDM Rubber Lining for Seawater Service

Wafer & Flanged Marine Butterfly Valve With EPDM Rubber Lining for Seawater Service

Wafer & Flanged Marine Butterfly Valve With EPDM Rubber Lining for Seawater Service thumbnail-3

Wafer & Flanged Marine Butterfly Valve With EPDM Rubber Lining for Seawater Service thumbnail-4

Wafer & Flanged Marine Butterfly Valve With EPDM Rubber Lining for Seawater Service thumbnail-5

Wafer & Flanged Marine Butterfly Valve With EPDM Rubber Lining for Seawater Service photo-1

Wafer & Flanged Marine Butterfly Valve With EPDM Rubber Lining for Seawater Service photo-2

Wafer & Flanged Marine Butterfly Valve With EPDM Rubber Lining for Seawater Service photo-3

Wafer & Flanged Marine Butterfly Valve With EPDM Rubber Lining for Seawater Service photo-4

Wafer & Flanged Marine Butterfly Valve With EPDM Rubber Lining for Seawater Service photo-5

Product Spotlights

Specifically engineered for seawater service, this marine butterfly valve features a durable EPDM rubber lining for superior corrosion resistance. Available in both wafer (compact) and flanged (robust) configurations, it offers installation flexibility. With a wide size range (DN50-DN600), multiple actuation options, and ISO9001 certified manufacturing, it delivers reliable flow control, long service life, and cost savings for global marine pipeline applications.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

Get Latest Price

Application:

Other, Seawater Service

Standard:

ISO9001 Certified Manufacturing

Material:

Carbon Steel Body with EPDM Rubber Lining

Contact Supplier Request Quote Chat Now

Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
Contact Us

Application Other, Seawater Service

Standard ISO9001 Certified Manufacturing

Material Carbon Steel Body with EPDM Rubber Lining

Size Range DN50 to DN600 (2“ to 24“)

Configuration Wafer & Flanged Types Available

Sealing EPDM Rubber Lining for Corrosion Resistance

Operation Manual, Gear, or Pneumatic Actuator Options

Connection Flanged (ASME/ANSI) or Wafer Style

Pressure Rating PN10/PN16 (Customizable upon request)

As a leading manufacturer specializing in industrial valves since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our high-performance Wafer & Flanged Marine Butterfly Valve with EPDM Rubber Lining. Engineered specifically for demanding seawater applications, this valve is a cornerstone of reliable marine pipeline management. With an annual export value exceeding US$1 million, our products have earned trust across global markets from North America to Southeast Asia. This valve combines robust construction with superior sealing technology, offering a durable and cost-effective solution for controlling fluid flow in corrosive marine environments.

The core value of this valve lies in its exceptional resistance to seawater corrosion. The strategic use of an EPDM (Ethylene Propylene Diene Monomer) rubber lining on the disc and seat areas directly tackles the primary challenge in marine service – degradation from saltwater, chlorides, and other aggressive agents. This design extends service life dramatically, reduces maintenance frequency, and ensures consistent sealing performance even under varying pressure and temperature conditions common in offshore and shipboard systems.

Key Features & Technical Advantages:

Dual Design Flexibility: Available in both wafer and flanged configurations. The wafer type provides a compact, lightweight solution ideal for space-constrained installations between flanges, while the flanged version offers robust, bolt-on connectivity for standard pipeline setups.
Corrosion-Resistant Lining: The EPDM rubber lining is not just a coating; it is a fully bonded, resilient layer that protects the valve's internal metallic components from direct seawater contact, preventing pitting, erosion, and galvanic corrosion.
Optimized Flow Characteristics: The disc design minimizes turbulence and pressure drop, ensuring efficient flow with low operating torque. This translates to energy savings and easier actuation.
Versatile Actuation Options: The valve can be fitted with manual hand levers, gear operators for larger sizes, or pneumatic actuators for remote/automated control systems, catering to diverse operational needs.
Rugged Body Construction: The valve body is typically crafted from carbon steel or other durable alloys, providing structural integrity to withstand pipeline stresses and external impacts.
Reliable Sealing Performance: The EPDM lining ensures a tight seal when closed, with excellent resilience to maintain sealing force over time, reducing the risk of leaks.

Technical Specifications (Common Range):

Parameter	Specification / Range
Size (Nominal Diameter)	DN50 - DN600 (2" - 24")
Pressure Rating	PN10, PN16 (Higher ratings customizable)
Body Material	Carbon Steel (WCB), Ductile Iron, Stainless Steel (optional)
Lining Material	EPDM Rubber (Standard for seawater)
Disc Material	EPDM-lined Carbon Steel or Stainless Steel
Connection Standard	Flanged: ASME/ANSI B16.5; Wafer: Standard wafer pattern
Operating Temperature	-10°C to +80°C (for EPDM lining, specific upon request)
Actuation Type	Manual Lever, Gear Box, Pneumatic Actuator (available)

Benefits to Our Clients:

Long-Term Cost Savings: The corrosion-resistant design drastically reduces replacement and repair costs over the lifecycle of your marine system.
Enhanced System Reliability: Consistent sealing and robust operation minimize downtime and maintenance interventions, ensuring uninterrupted pipeline performance.
Installation Flexibility: The choice between wafer and flanged types allows for optimal integration into new or existing piping layouts, saving on installation time and complexity.
Global Compliance & Quality: Manufactured under an ISO9001 certified quality management system, our valves meet stringent international standards for production consistency and reliability.
Global Supply Capability: With major shipment ports in Shanghai, Guangzhou, Hongkong, and Beijing, and a presence in markets from Eastern Europe to Oceania, we ensure timely delivery and logistical support worldwide.

Shanghai Zhibang's commitment to quality is backed by our ISO9001 certification and proven by our track record of supplying valves to diverse regions including North America, South America, Eastern Europe, and Africa. Our annual export volume reflects the confidence international partners place in our products. For your seawater service applications, choosing our Marine Butterfly Valve means selecting a product born from professional manufacturing expertise, designed for durability, and supported by a global supply chain. We encourage you to contact us for specific sizing, pressure ratings, or actuation requirements to get the perfect valve solution for your project.

Frequently Asked Questions (FAQ):

Q: Why is EPDM rubber specifically chosen for the lining in seawater valves?
A: EPDM rubber exhibits excellent resistance to saltwater, chlorides, ozone, and weathering. It maintains its elasticity and sealing properties in marine environments better than many other elastomers, making it a preferred material for long-term seawater service.
Q: What is the main difference between the Wafer and Flanged versions of this butterfly valve?
A: A wafer-style valve is designed to be installed between two pipeline flanges using bolts that pass through the valve body. It is lighter and more compact. A flanged valve has its own integral flanges on both ends for direct bolting to the pipeline flanges, offering a more robust and standard connection.
Q: Can this valve be used for other fluids besides seawater?
A: While optimized for seawater, the EPDM-lined valve is also suitable for many other water-based fluids, mild chemicals, and processes where corrosion resistance and good sealing are required. However, compatibility with specific aggressive chemicals should be confirmed.
Q: What actuation methods are available, and how do I choose?
A: Options include manual lever (for smaller sizes/easy access), gear operator (for larger sizes/high torque), and pneumatic actuator (for automated/remote control). The choice depends on valve size, required operating torque, available space, and control system design.
Q: Are these valves suitable for high-pressure seawater systems?
A: The standard pressure ratings are PN10 and PN16. For higher pressure applications, customized designs with reinforced construction and different lining/seat arrangements are available upon request.
Q: Does the valve come with any standard certifications?
A: Our manufacturing process is ISO9001 certified, ensuring consistent quality control. The valves themselves can be produced to meet various international standards like ANSI/ASME, but specific certification markings (like CE for certain markets) would be subject to customer request and project requirements.
Q: What is the typical delivery lead time for these valves?
A: Lead times vary based on size, specification, and quantity. Standard sizes in common materials often have shorter lead times. Our multiple shipment ports facilitate efficient logistics. Please inquire with your specific requirements for an accurate timeline.
Q: Can you provide custom sizes or materials outside the standard range?
A: Yes, as a manufacturer, we have the capability to customize valves. Non-standard sizes, special materials like stainless steel bodies, or alternative lining materials for specific applications can be discussed and engineered based on your needs.