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 > Ball Valve for FPSO Seawater Cooling Systems, CB/T3191 Marine Standard, Corrosion Resistant

Ball Valve for FPSO Seawater Cooling Systems, CB/T3191 Marine Standard, Corrosion Resistant

Ball Valve for FPSO Seawater Cooling Systems, CB/T3191 Marine Standard, Corrosion Resistant thumbnail-3

Ball Valve for FPSO Seawater Cooling Systems, CB/T3191 Marine Standard, Corrosion Resistant thumbnail-4

Ball Valve for FPSO Seawater Cooling Systems, CB/T3191 Marine Standard, Corrosion Resistant thumbnail-5

Ball Valve for FPSO Seawater Cooling Systems, CB/T3191 Marine Standard, Corrosion Resistant photo-1

Ball Valve for FPSO Seawater Cooling Systems, CB/T3191 Marine Standard, Corrosion Resistant photo-2

Ball Valve for FPSO Seawater Cooling Systems, CB/T3191 Marine Standard, Corrosion Resistant photo-3

Ball Valve for FPSO Seawater Cooling Systems, CB/T3191 Marine Standard, Corrosion Resistant photo-4

Ball Valve for FPSO Seawater Cooling Systems, CB/T3191 Marine Standard, Corrosion Resistant photo-5

Product Spotlights

Marine-grade ball valve designed for harsh FPSO seawater cooling. Complies with CB/T3191 standard. Built with corrosion-resistant Duplex/Super Duplex stainless steel for long life in chloride environments. Offers bubble-tight shutoff, low torque operation, and optional fire-safe design. Enhances system reliability and reduces lifecycle costs for offshore operations.

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

Key Specifications

Get Latest Price

Standard:

CB/T3191 Marine Standard

Application:

Other, FPSO Seawater Cooling Systems

Material:

Corrosion-resistant alloy (e.g., Duplex Stainless Steel)

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

Standard CB/T3191 Marine Standard

Application Other, FPSO Seawater Cooling Systems

Material Corrosion-resistant alloy (e.g., Duplex Stainless Steel)

Connection Type Flanged, Threaded, or Welded

Size Range DN15 to DN600 (1/2“ to 24“)

Pressure Rating PN10 to PN100 (150LB to 600LB)

Seat Material PTFE, reinforced PTFE, or metal

Operation Type Manual lever, gear, pneumatic, or electric actuated

As a professional manufacturer with a strong focus on marine and offshore applications, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our specialized Ball Valve engineered explicitly for FPSO Seawater Cooling Systems. Built to the rigorous CB/T3191 Marine Standard, this valve is your reliable solution for managing corrosive seawater in demanding offshore environments. Our years of experience since 2016 in supplying critical valve components across global markets, from North America to Southeast Asia, have culminated in a product designed for durability, safety, and minimal maintenance, ensuring the uninterrupted operation of your vital cooling circuits.

The core value of this valve lies in its exceptional corrosion resistance, a non-negotiable requirement for seawater handling. We understand that FPSO operations cannot afford downtime due to valve failure. Therefore, every component, from the body to the trim, is selected and treated to withstand prolonged exposure to chlorides, sulfides, and other aggressive elements present in seawater. The robust construction ensures a long service life even under high-pressure cycling and varying flow conditions typical in cooling systems.

Let's delve into the specific features and technical specifications that set our FPSO Ball Valve apart:

Superior Corrosion Resistance: Manufactured from advanced alloys such as Duplex (UNS S31803/S32205) or Super Duplex stainless steels. These materials offer excellent resistance to pitting, crevice corrosion, and stress corrosion cracking, far exceeding the performance of standard 316 stainless steel in seawater.
Compliant Marine Design: Fully compliant with the Chinese CB/T3191 standard for marine valves, which specifies requirements for materials, design, pressure testing, and marking for marine applications, ensuring interoperability and safety on board.
Bubble-Tight Shut-off: Features precision-machined ball and seat assemblies. Options include soft seats (PTFE, RPTFE) for ultra-tight sealing in standard services or metal-seated versions for high-temperature or abrasive slurry applications within the system.
Robust Stem & Sealing: The stem is designed with an anti-blowout feature and is sealed with multiple sets of chevron packing or O-rings, preventing leakage to the atmosphere—a critical safety and environmental consideration.
Low Torque & Easy Operation: The ball is supported by low-friction bearings, and the stem seals are optimized, resulting in consistently low operating torque. This extends the life of actuators and makes manual operation smoother, even after long periods of inactivity.
Fire-Safe Design (Optional): Valves can be supplied with fire-safe certification (API 607/API 6FA) where required. This design ensures secondary metal-to-metal sealing in case the primary soft seals are damaged by fire.
Full Port or Standard Port: Available in full port (full bore) design to minimize pressure drop and allow for pigging in the pipeline, or standard port for general applications where space and cost are considerations.
Versatile Actuation: Can be fitted with manual lever, gearbox, pneumatic, or electric actuators. We can provide integrated actuated packages tailored to your control system requirements.

The technical specifications for our standard range are summarized in the table below. Custom specifications outside these ranges are available upon request.

Parameter	Specification
Design Standard	CB/T3191, API 6D, ASME B16.34
Size Range (Nominal)	DN15 (1/2") to DN600 (24")
Pressure Class	PN10, PN16, PN25, PN40, PN63, PN100 (ANSI 150, 300, 600)
Body Material	Duplex SS 2205, Super Duplex SS 2507, ASTM A351 CF8M
Seat Material	PTFE, Reinforced PTFE, PEEK, Metal (Stellite)
Temperature Range	-29°C to +200°C (with soft seat) Up to +450°C (metal seated, specific design)
End Connection	Flanged (RF, RTJ), Butt-Weld, Threaded (NPT, BSP)

Choosing our ball valve translates into direct benefits for your FPSO project:

Enhanced System Reliability: Reduces unplanned shutdowns caused by valve corrosion or failure, protecting critical heat exchangers and machinery.
Lower Lifecycle Cost: The extended service life and reduced maintenance frequency lower the total cost of ownership significantly compared to standard valves.
Operational Safety: Compliance with marine standards and reliable sealing contribute to a safer working environment by preventing leaks.
Global Supply & Support: With established export channels through major ports like Shanghai, Guangzhou, and Hong Kong, we ensure timely delivery and technical support to your global operations.

Backed by our ISO9001 certified quality management system, every valve undergoes stringent pressure testing, material verification, and performance checks before shipment. Our annual export value of US$1-1.5 million is a testament to the trust placed in us by partners across North America, South America, Europe, Asia, Africa, and Oceania. We are not just suppliers; we are solution providers for the offshore industry. For a valve that stands up to the sea as robustly as your FPSO does, contact Shanghai Zhibang Valve today to discuss your specific requirements and request a quotation.

Frequently Asked Questions (FAQ)

Q: Why is CB/T3191 compliance important for my FPSO application?
A: CB/T3191 is a Chinese national standard specifically for marine valves, covering design, material, manufacturing, and testing requirements suitable for shipboard and offshore platform conditions. Using compliant valves ensures they meet recognized benchmarks for safety, durability, and interchangeability within marine piping systems.
Q: Can this valve handle untreated seawater directly?
A: Yes, it is specifically designed for this purpose. The use of corrosion-resistant alloys like Duplex stainless steel provides inherent protection against the chlorides and other corrosive agents in raw seawater, making it suitable for intake, cooling, and overboard discharge lines.
Q: What is the typical lead time for an order?
A: Lead times vary based on size, material grade, and actuation requirements. For standard specifications in our inventory, delivery can be expedited. For large or customized orders, we provide a firm schedule upon receipt of your inquiry. Our multiple shipment ports facilitate efficient logistics.
Q: Do you provide actuated packages?
A: Absolutely. We can supply the ball valve integrated with pneumatic (double-acting or spring-return), electric, or hydraulic actuators. Our engineering team can help select the appropriate actuator based on your required torque, control signal (on/off, modulating), and available utility (air, power).
Q: How does the fire-safe option work?
A: In a fire-safe design, the primary soft seal (e.g., PTFE) is backed by a secondary metal seal (often a tapered seat). If the primary seal is compromised by fire, the metal components thermally expand to create a metal-to-metal seal, maintaining a degree of shut-off to contain the fluid and prevent exacerbating the fire.
Q: Are spare parts like seats and seals available?
A: Yes, we maintain an inventory of critical spare parts for our valves. We recommend keeping a set of seals/gaskets and seats for critical valves to minimize downtime during planned maintenance.
Q: What documentation is provided with the valves?
A: Standard documentation includes a Material Test Certificate (MTC/CMTR), Certificate of Conformity, Pressure Test Report, and detailed packing list. Additional certifications like NACE MR0175 for sour service or specific project documentation are available upon request.
Q: Can you customize valves for specific pressure or connection standards?
A> Yes, customization is a core part of our service. We can manufacture valves to meet specific pressure ratings (e.g., API classes), end connections (like specific flange standards), trim materials, or special coating requirements as needed for your project specifications.