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Home > Industrial Equipment & Components > Valve > Butterfly Valve > JIS F7481 5K Wafer Butterfly Valve DN150 DNV BV Approved for Marine Pump Connections

JIS F7481 5K Wafer Butterfly Valve DN150 DNV BV Approved for Marine Pump Connections

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JIS F7481 5K Wafer Butterfly Valve DN150 DNV BV Approved for Marine Pump Connections photo-5

Product Spotlights

DNV-approved JIS F7481 5K wafer butterfly valve for marine use. Features compact wafer design for space-saving installation between flanges, bubble-tight sealing, and versatile material/actuation options. Ideal for reliable pump isolation and flow control in shipboard systems, backed by ISO9001 manufacturing.

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

Key Specifications

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Standard:

JIS F7481

Application:

Other, Marine Pump Connections

Type:

Wafer Butterfly Valve

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
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Standard JIS F7481

Application Other, Marine Pump Connections

Type Wafer Butterfly Valve

Nominal Diameter (DN) 150

Pressure Rating 5K (PN10)

Approval DNV Type Approval

Body Material Cast Iron, Ductile Iron, or Stainless Steel

Seat Material EPDM, NBR, or PTFE

Operation Lever, Gear, or Actuator (Optional)

Connection Wafer (JIS B 2291 Flange Compatible)

As a professional valve manufacturer based in Shanghai, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing high-performance fluid control solutions for demanding marine and industrial applications. Established in 2016 and holding ISO9001 certification, we understand the critical need for reliability and compliance in shipboard systems. Our JIS F7481 5K Wafer Butterfly Valve DN150 is engineered precisely for this purpose, offering a compact, efficient, and DNV-approved solution for marine pump connections and general piping, ensuring secure operation in challenging offshore environments.

This valve is designed to meet the rigorous standards of the marine industry, providing superior shut-off and flow control where space and weight are at a premium. Its robust construction and certified performance make it a trusted component for shipbuilders, repair yards, and system integrators worldwide.

Key Features & Technical Advantages:

Full Compliance: Manufactured strictly in accordance with JIS F7481 standard for marine valves, ensuring dimensional interchangeability and performance reliability.
DNV Type Approval: Holds DNV (Det Norske Veritas) certification, a globally recognized mark of quality and safety for marine equipment, providing assurance for critical applications.
Compact Wafer Design: The wafer-style body installs between two pipe flanges using through-bolts, saving significant space and weight compared to lug or flanged-end valves, ideal for tight engine rooms and pump rooms.
5K Pressure Rating: Rated for a nominal pressure of 5K (equivalent to PN10), suitable for a wide range of shipboard service systems including bilge, ballast, cooling water, and general service lines.
Versatile Material Options: Available with different body (e.g., cast iron, ductile iron, stainless steel) and seat (e.g., EPDM for freshwater, NBR for oil, PTFE for chemicals) materials to suit specific media and temperature conditions.
Multiple Actuation Methods: Can be operated manually via a lever or gearbox, or automated with pneumatic/electric actuators for remote control and integration into automated systems.
Bubble-Tight Shut-off: Features a precision-machined disc and a resilient seat that ensures reliable, bubble-tight sealing in both directions, minimizing leakage and ensuring system integrity.
Low Torque Operation: The streamlined disc design and low-friction seat material allow for easy operation with minimal torque, reducing wear on actuators and operator effort.

Detailed Technical Specifications:

Parameter	Specification
Product Standard	JIS F7481
Valve Type	Wafer Butterfly Valve
Nominal Size	DN150 (6")
Pressure Class	5K (PN10)
Flange Connection Standard	JIS B 2291, compatible with JIS 5K flanges
Approval	DNV Type Approval Certificate
Body Material (Typical)	Cast Iron (FC200), Ductile Iron (FCD450), Stainless Steel (CF8/CF8M) - Optional
Disc Material (Typical)	Cast Iron, Ductile Iron, Stainless Steel - Coated or Uncoated
Seat Material	EPDM, NBR, PTFE, or other elastomers upon request
Stem Material	Stainless Steel (SUS304/SUS416)
Operating Temperature	Depends on seat material (e.g., -10°C to 120°C for EPDM)
Operation	Lever, Worm Gear, Pneumatic Actuator, Electric Actuator (Optional)

Benefits for Your Project:

Simplified Procurement & Installation: Full compliance with JIS standards ensures easy fitment between JIS flanges, speeding up installation and reducing compatibility issues.
Enhanced Project Credibility: The DNV approval serves as a powerful trust signal to ship owners, classification societies, and end-clients, facilitating smoother project acceptance.
Cost & Space Efficiency: The wafer design reduces material and weight, lowering overall system cost. Its compact footprint is perfect for space-constrained marine applications.
Reduced Maintenance: Durable materials and a simple, robust design lead to long service life with minimal maintenance requirements, lowering total cost of ownership.
Operational Flexibility: The availability of multiple actuation options allows for integration into both manual and fully automated control systems.

Backed by our ISO9001-certified manufacturing processes and an annual export value reflecting consistent global demand, Shanghai Zhibang Valve delivers products that combine rigorous quality control with practical engineering. Our valves are shipped from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics to our key markets across North America, Europe, Asia, Africa, and Oceania. When you choose this JIS F7481 DN150 valve, you are not just selecting a component; you are investing in a reliable, certified, and performance-proven solution that safeguards your marine systems. Contact us today to discuss your specific requirements or to request a quotation.

Frequently Asked Questions (FAQ):

What does "5K" pressure rating mean for this valve?
The "5K" designation refers to the JIS (Japanese Industrial Standard) pressure class, indicating the valve is suitable for a nominal pressure of 5 kgf/cm². This is approximately equivalent to PN10 (10 bar) in other international standards, making it suitable for low to medium-pressure shipboard services.
Is this valve suitable for seawater applications?
Yes, with the appropriate material selection. For seawater service, we recommend a stainless steel body (CF8M/316) and an EPDM or PTFE seat to resist corrosion. Specific material combinations can be customized upon request to handle corrosive media.
Can this wafer valve be used as an isolation valve for pumps?
Absolutely. Its bubble-tight shut-off capability and compact design make it an excellent choice for isolating marine pumps on suction or discharge lines for maintenance, ensuring system safety and efficiency.
What is the significance of DNV approval for my project?
DNV (Det Norske Veritas) is a leading international marine classification society. Their type approval certifies that the valve design, manufacturing, and testing meet their stringent rules and standards for marine use. This approval is often a mandatory requirement for equipment installed on DNV-classed vessels and is highly respected by other classification societies, simplifying regulatory compliance.
Do you provide valves with actuators for automated control?
Yes, we offer this valve as a complete package with pneumatic (double-acting or spring-return) or electric actuators. The actuator type, torque output, control signals (e.g., 4-20mA, on/off), and accessories (limit switches, solenoid valves) can be specified to match your control system needs.
How does the wafer connection differ from a lug-type butterfly valve?
A wafer valve is installed by sandwiching it between two pipeline flanges, which are then bolted together. A lug-type valve has threaded inserts (lugs) on the body, allowing it to be bolted directly to each flange independently. The wafer design is more compact and cost-effective for isolation between two flanges, while the lug type can be used as an end-of-line valve.
What is the typical delivery lead time for this DN150 valve?
For standard configurations with common materials (e.g., cast iron body, EPDM seat, lever operation), we generally maintain stock for prompt shipment. For customized orders or specific material grades, the lead time may vary. Please contact our sales team with your detailed specification for an accurate delivery schedule.
What testing is performed on these valves before shipment?
Each valve undergoes routine factory tests, which typically include a shell strength test (hydrostatic pressure test) and a seat leakage test (air or water under pressure) per JIS F7481 and DNV requirements. Detailed test reports can be provided upon request.