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 > Fire-Safe API 609 Marine Wafer Duo-Eccentric Butterfly Valve, No Actuator

Fire-Safe API 609 Marine Wafer Duo-Eccentric Butterfly Valve, No Actuator

Fire-Safe API 609 Marine Wafer Duo-Eccentric Butterfly Valve, No Actuator thumbnail-3

Fire-Safe API 609 Marine Wafer Duo-Eccentric Butterfly Valve, No Actuator thumbnail-4

Fire-Safe API 609 Marine Wafer Duo-Eccentric Butterfly Valve, No Actuator thumbnail-5

Fire-Safe API 609 Marine Wafer Duo-Eccentric Butterfly Valve, No Actuator photo-1

Fire-Safe API 609 Marine Wafer Duo-Eccentric Butterfly Valve, No Actuator photo-2

Fire-Safe API 609 Marine Wafer Duo-Eccentric Butterfly Valve, No Actuator photo-3

Fire-Safe API 609 Marine Wafer Duo-Eccentric Butterfly Valve, No Actuator photo-4

Fire-Safe API 609 Marine Wafer Duo-Eccentric Butterfly Valve, No Actuator photo-5

Product Spotlights

API 609 compliant duo-eccentric butterfly valve designed for marine and fire-safe applications. Features a wafer body for compact installation, fire-safe construction with secondary metal seal, and durable materials for corrosion resistance. Offers low operating torque, extended seal life, and is actuator-ready for automation. Ideal for offshore, petrochemical, and shipboard piping systems requiring safety and reliability.

Negotiable MOQ: 10 Units (Price negotiable depending on order volume and customization)

Key Specifications

Get Latest Price

Application:

Other, Marine

Standard:

API 609, fire-safe design per API standards

Material:

Cast steel body, stainless steel disc/seal

Contact Supplier Request Quote Chat Now

Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

shanghai

Delivery Detail:

7 days

Product Details
Company Profile
Contact Us

Application Other, Marine

Standard API 609, fire-safe design per API standards

Material Cast steel body, stainless steel disc/seal

Size Range DN50 to DN600 (2“ to 24“)

Configuration Wafer type, duo-eccentric (double offset)

Fire-Safe Rating Certified for fire-safe applications

Connection Wafer design for space-saving installation

Seal Type PTFE or metal seat options available

Operation Manual (lever/gear), actuator optional

As a specialized manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is dedicated to producing high-performance industrial valves for demanding global applications. Our Fire-Safe API 609 Marine Wafer Duo-Eccentric Butterfly Valve represents our commitment to engineering reliability and safety, particularly for the marine, offshore, and petrochemical sectors where fire protection is paramount. This valve is designed to deliver exceptional sealing performance, durability, and ease of installation, providing a critical component for systems requiring certified fire-safe integrity.

The core value of this product lies in its compliance with stringent API 609 standards and its inherent fire-safe design. It offers a robust solution for pipelines handling flammable media, ensuring that the valve maintains its seal even under extreme thermal conditions. Manufactured under our ISO9001-certified quality management system, each valve undergoes rigorous testing to meet the expectations of our diverse clientele across North America, South America, Europe, Asia, Africa, and Oceania.

Product Features & Technical Advantages:

Duo-Eccentric (Double Offset) Design: This advanced design reduces wear on the seat by ensuring the disc only contacts the seat during the final portion of closure. It offers lower operating torque, extended seal life, and superior shut-off capability compared to concentric designs.
Fire-Safe Construction: Engineered to prevent leakage in fire scenarios. The design typically incorporates secondary metal-to-metal sealing surfaces that engage if the primary soft seal (e.g., PTFE) is compromised by heat, maintaining a barrier against fluid escape.
API 609 Compliance: Manufactured to meet the specifications of API Standard 609 for butterfly valves, covering dimensions, materials, pressure-temperature ratings, and testing requirements, ensuring interoperability and reliability in oil & gas and marine applications.
Wafer Body Style: The wafer design is compact and installed between two pipeline flanges using bolts, saving space and weight—a crucial advantage for marine and offshore installations where space constraints are common.
High-Performance Materials: The body is commonly constructed from durable cast steel (WCB, LCB) or stainless steel, while the disc and stem are often stainless steel to resist corrosion. Seat materials include PTFE for excellent sealing or metal for high-temperature/fire-safe service.
Optional Actuation: While supplied as a manual valve (with lever or gear operator), it is readily compatible with a variety of actuators (electric, pneumatic, hydraulic) for automated control systems, allowing for customization based on project needs.

Technical Specifications Table:

Parameter	Details / Range
Size (Nominal Diameter)	DN50 - DN600 (2" - 24")
Pressure Class	ANSI Class 150, PN10/16 (common)
Temperature Range	-20°C to +200°C (with PTFE seat); Higher with metal seat
Body Material	Cast Carbon Steel (WCB), Stainless Steel (304/316), Duplex Steel
Disc & Stem Material	Stainless Steel (304/316), Coated Steel
Seal Material Options	PTFE (Standard), Metal (Fire-Safe), Composite
Face-to-Face Dimension	Compact, per API 609 / ISO standards
End Connection	Wafer, fits between ANSI/ISO/DIN flanges
Operation (Standard)	Manual (Lever or Worm Gear), Actuator-ready

Benefits to the Customer:

Enhanced Safety: The certified fire-safe design provides critical protection for personnel, assets, and the environment in hazardous applications, helping meet regulatory safety mandates.
Long Service Life & Reduced Maintenance: The duo-eccentric mechanism minimizes seat friction and wear, leading to longer intervals between maintenance and lower lifecycle costs.
Space & Weight Savings: The wafer configuration eliminates the need for separate valve flanges, reducing overall installation footprint and weight, ideal for shipboard and platform piping.
Reliable Performance Under Pressure: Compliance with API 609 ensures predictable performance across defined pressure and temperature ranges, reducing operational risk.
Flexible Integration: The standard manual operation is simple, while the actuator-ready design allows easy upgrade to automated control for process optimization.
Global Supply Assurance: With an annual export value between US$1-1.5 million and shipments from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely and reliable delivery to markets worldwide.

Shanghai Zhibang Valve, backed by our ISO9001 certification and nearly a decade of manufacturing expertise since 2016, has established a strong reputation for supplying reliable valves to a global network spanning from North America and Europe to Southeast Asia and Africa. Our consistent export volume demonstrates our capacity and commitment to serving international B2B clients. This Fire-Safe API 609 Butterfly Valve is a product of that dedication, engineered to provide a dependable, safe, and cost-effective sealing solution for your most critical marine and industrial pipelines. We invite you to contact us for detailed specifications, pricing, and to discuss how this valve can be tailored to your specific project requirements.

Frequently Asked Questions (FAQ):

Q: What does "fire-safe" mean for this butterfly valve?
A: A fire-safe valve is designed to maintain its sealing function (i.e., prevent significant leakage) even if exposed to a fire. Our valve typically includes a secondary metal seal that engages if the primary soft seal is damaged by heat, meeting industry fire-testing standards.
Q: Is this valve suitable for seawater or corrosive marine environments?
A: Yes. By selecting appropriate materials like stainless steel (316) or duplex steel for the body, disc, and stem, the valve can offer excellent corrosion resistance for seawater, offshore, and other corrosive service conditions.
Q: Can I install this wafer valve between flanges of different standards (e.g., ANSI and DIN)?
A: The valve's face-to-face dimensions and bolt hole patterns are designed per API/ISO standards. It is crucial to ensure the flange standards and dimensions (pressure class, facing) match. We can provide valves tailored to specific flange standards upon request.
Q: What is the difference between a duo-eccentric and a concentric butterfly valve?
A: A concentric valve has the disc rotating around a central axis, causing more friction and wear on the seat. The duo-eccentric (double offset) design shifts the axis of rotation, minimizing seat contact until closure, resulting in lower torque, less wear, and better sealing.
Q: Does the valve come with an actuator?
A: The standard supply is "No Actuator," meaning it includes a manual operator (lever or gear). However, the valve is designed to be easily fitted with various electric, pneumatic, or hydraulic actuators, which we can supply as an optional accessory.
Q: What pressure classes are available?
A: Common pressure classes include ANSI Class 150 and PN10/16. Higher pressure classes (e.g., Class 300) may be available depending on size and material; please inquire for specific requirements.
Q: Are test reports or fire-safe certificates provided?
A> As a manufacturer operating under ISO9001, we conduct rigorous production and performance tests. Specific fire-test certification reports from independent labs can be arranged upon request, depending on the project specifications.
Q: What is the typical delivery time for orders?
A> Delivery time depends on order quantity, specifications, and material selection. With our established export channels from multiple Chinese ports, we strive for efficient logistics. Standard sizes often have shorter lead times, while customized orders may require additional production time.