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Corrosion-Resistant API 609 Butterfly Valve for Offshore Seawater Service, 316SS Disc
Product Spotlights
Engineered for harsh offshore environments, this API 609 butterfly valve features a 316 Stainless Steel disc for superior seawater corrosion resistance. It ensures reliable, bubble-tight shutoff, low torque operation, and long service life. Compliant with industry standards, it reduces maintenance costs and enhances system safety for seawater cooling, firewater, and process lines on platforms and vessels.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Standard:
API 609
Application:
Other, Offshore Platforms
Material:
316 Stainless Steel Disc, Ductile Iron/Carbon Steel Body
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Standard
API 609
Application
Other, Offshore Platforms
Material
316 Stainless Steel Disc, Ductile Iron/Carbon Steel Body
Service Medium
Seawater, Corrosive Fluids
Size Range
2 inch to 48 inch (DN50 to DN1200)
Pressure Rating
Class 150 to Class 300 (PN16 to PN40)
End Connection
Wafer, Lug, or Flanged
Seat Material
PTFE, EPDM, or other elastomers available
Operation
Manual Lever, Gearbox, or Actuator
As a leading Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016 and ISO9001 certified, we specialize in engineering robust fluid control solutions for the world's most demanding industries. Our Corrosion-Resistant API 609 Butterfly Valve for Offshore Seawater Service is a testament to our commitment to quality and performance. Designed specifically for harsh marine environments, this valve ensures reliable, long-lasting operation in critical offshore seawater applications, from cooling systems to firewater lines, helping operators minimize downtime and maintenance costs.
This valve is engineered to meet the rigorous demands of offshore service. Its core construction features a 316 Stainless Steel (316SS) disc, renowned for its exceptional resistance to pitting and crevice corrosion in chloride-rich environments like seawater. The design and manufacturing strictly adhere to the API 609 standard, ensuring dimensional interchangeability, performance reliability, and compliance with industry best practices for butterfly valves.
Key Features & Technical Advantages:
- Superior Corrosion Resistance: The 316SS disc provides outstanding protection against seawater corrosion, significantly extending service life compared to standard materials.
- API 609 Compliance: Guarantees robust design, precise dimensions, and reliable performance under specified pressure and temperature conditions, facilitating easy replacement and system integration.
- Bubble-Tight Shut-Off: Paired with high-performance elastomer seats (like PTFE or EPDM), the valve achieves excellent sealing, preventing leaks in critical systems.
- Low Torque Operation: The streamlined disc design reduces operating torque, allowing for easier manual operation or enabling the use of smaller, more cost-effective actuators.
- Versatile End Connections: Available in wafer, lug, or double flanged designs to suit various piping configurations and installation requirements.
- Bi-Directional Flow Capability: Suitable for flow in either direction, offering flexibility in system design and installation.
- Compact & Lightweight Design: Saves space and weight compared to gate or globe valves, a crucial advantage on space-constrained offshore platforms.
Technical Specifications:
| Parameter | Specification |
| Design Standard | API 609 |
| Disc Material | 316 Stainless Steel (Standard) |
| Body Material | Ductile Iron, Carbon Steel (WCB), 316SS (Optional) |
| Seat Material | PTFE, EPDM, Viton (Customizable) |
| Size Range | 2" - 48" (DN50 - DN1200) |
| Pressure Rating | Class 150, Class 300 (PN16, PN25, PN40) |
| Temperature Range | -20°C to +200°C (Depends on seat material) |
| Operation | Manual Lever, Gear Operator, Pneumatic/Hydraulic/Electric Actuator |
Benefits for Your Offshore Operations:
- Enhanced System Reliability: Reduces the risk of valve failure due to corrosion, ensuring continuous operation of seawater intake, cooling, and process systems.
- Reduced Lifetime Cost: The durable 316SS construction lowers maintenance frequency and replacement costs, offering a better total cost of ownership.
- Simplified Inventory & Maintenance: API 609 standardization means parts are interchangeable, simplifying spare parts management and repair procedures.
- Safety & Environmental Protection: Reliable bubble-tight shutoff prevents seawater leakage, protecting personnel, equipment, and the marine environment.
Frequently Asked Questions (FAQ):
-
Q: Why is API 609 important for a butterfly valve in seawater service?
A: API 609 is a globally recognized standard that specifies design, materials, testing, and pressure-temperature ratings for butterfly valves. Using an API 609 compliant valve ensures it meets the rigorous performance and safety requirements for offshore and industrial applications, providing assurance of quality and reliability. -
Q: Can this valve handle other fluids besides seawater?
A: Yes. While optimized for seawater, the 316SS disc and compatible seat materials make it suitable for a range of other corrosive fluids, including certain chemicals, brackish water, and treated wastewater. The specific application should be confirmed with our technical team. -
Q: What are the available actuator options?
A: We offer a full range of actuation solutions. The valve can be fitted with pneumatic (double-acting or spring-return), hydraulic, or electric actuators. The choice depends on your available power source, required fail-safe mode, and automation level. -
Q: Is the valve suitable for high-pressure seawater applications?
A: Our valves are available in pressure classes up to Class 300 (PN40). For applications exceeding standard ratings, we can provide engineering solutions or recommend alternative valve types. Please specify your operating pressure. -
Q: Do you offer different seat materials, and how do I choose?
A: Absolutely. Common options include PTFE for wide chemical compatibility and temperature range, EPDM for excellent water and steam resistance, and Viton for higher temperature hydrocarbons. Selection depends on fluid temperature, chemical composition, and required sealing performance. -
Q: What is the typical delivery lead time?
A: Lead time varies based on size, pressure rating, and configuration. Standard sizes are often available from stock, while customized orders typically require 4-8 weeks. We provide precise timelines upon receipt of your detailed inquiry. -
Q: Can you provide valves with specific coatings or external protection?
A: Yes. We can apply epoxy coatings, galvanization, or other protective finishes to the valve body to provide additional corrosion protection for the external environment, which is often severe offshore. -
Q: What documentation accompanies the valves?
A: Each valve shipment includes essential documentation such as a Material Test Certificate (MTC), Certificate of Conformance, pressure test reports, and detailed installation & maintenance manuals. API 609 certification documentation is available upon request.
Backed by our ISO9001 quality management system and serving a global clientele across North America, South America, Europe, Asia, Africa, and Oceania, Shanghai Zhibang has built a reputation for delivering dependable industrial valves. With an annual export value ranging from US$1 Million to US$1.5 Million, we have the scale and experience to support your projects. Our strategic location in Shanghai and multiple shipment ports ensure efficient logistics. Choose our API 609 Butterfly Valve for a solution that combines marine-grade corrosion resistance with proven industry standards, delivering peace of mind and operational efficiency for your offshore assets. Contact us today for a quotation or technical consultation.
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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