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Home > Industrial Equipment & Components > Valve > Butterfly Valve > JIS F7481 Butterfly Valve for Cargo Ship Centralized HVAC Retrofit Projects, Custom Sleeve Lengths Available

JIS F7481 Butterfly Valve for Cargo Ship Centralized HVAC Retrofit Projects, Custom Sleeve Lengths Available

JIS F7481 Butterfly Valve for Cargo Ship Centralized HVAC Retrofit Projects, Custom Sleeve Lengths Available thumbnail-3

JIS F7481 Butterfly Valve for Cargo Ship Centralized HVAC Retrofit Projects, Custom Sleeve Lengths Available thumbnail-4

JIS F7481 Butterfly Valve for Cargo Ship Centralized HVAC Retrofit Projects, Custom Sleeve Lengths Available thumbnail-5

JIS F7481 Butterfly Valve for Cargo Ship Centralized HVAC Retrofit Projects, Custom Sleeve Lengths Available photo-1

JIS F7481 Butterfly Valve for Cargo Ship Centralized HVAC Retrofit Projects, Custom Sleeve Lengths Available photo-2

JIS F7481 Butterfly Valve for Cargo Ship Centralized HVAC Retrofit Projects, Custom Sleeve Lengths Available photo-3

JIS F7481 Butterfly Valve for Cargo Ship Centralized HVAC Retrofit Projects, Custom Sleeve Lengths Available photo-4

JIS F7481 Butterfly Valve for Cargo Ship Centralized HVAC Retrofit Projects, Custom Sleeve Lengths Available photo-5

Product Spotlights

JIS F7481 compliant butterfly valve designed specifically for cargo ship HVAC retrofits. Key feature is customizable sleeve lengths for perfect fit in existing piping, eliminating field modifications. Offers robust marine-grade construction with material options for corrosion resistance. Enhances system reliability, simplifies installation, and is backed by ISO9001 certified manufacturing and global export experience.

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

Key Specifications

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Standard:

JIS F7481

Application:

Other, Cargo Ship Centralized HVAC Retrofit

Sleeve Length:

Customizable

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, Cargo Ship Centralized HVAC Retrofit

Sleeve Length Customizable

Body Material Optional (e.g., Cast Iron, Ductile Iron)

Disc Material Optional (e.g., Stainless Steel, Nickel Plated)

Seat Material Optional (e.g., EPDM, NBR, PTFE)

Connection Type Wafer, Lug (Optional)

Operation Manual Lever, Gear, Actuator (Optional)

Size Range Available upon request

As a professional manufacturer specializing in industrial valves since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our JIS F7481 Butterfly Valve, engineered specifically for the demanding requirements of cargo ship centralized HVAC retrofit projects. With an annual export value exceeding US$1 million, we understand the critical need for reliable, compliant, and customizable components in maritime applications. This valve is designed to be a direct, high-performance replacement or upgrade solution, ensuring your vessel's heating, ventilation, and air conditioning systems operate with enhanced efficiency and safety. Our capability to provide custom sleeve lengths addresses the unique spatial constraints of retrofit installations, making the integration process smoother and more cost-effective.

This butterfly valve is constructed to meet the rigorous JIS F7481 standard, which governs valves for marine use, ensuring compatibility, durability, and performance under shipboard conditions. Its design is focused on providing excellent flow control within HVAC ducting and piping systems.

Compliance & Reliability: Manufactured in strict accordance with JIS F7481, this valve guarantees the material quality, pressure ratings, and testing protocols required for marine service. This compliance is crucial for passing classification society inspections and ensuring long-term, trouble-free operation in the corrosive maritime environment.
Customizable Sleeve Length: A key feature for retrofit projects. We offer valves with sleeves tailored to your specific installation measurements. This eliminates the need for costly and time-consuming field modifications, adapters, or custom piping, ensuring a perfect fit and seal within the existing shipboard HVAC infrastructure.
Robust Construction & Material Options: The valve body is typically crafted from high-grade cast iron or ductile iron with corrosion-resistant coatings. The disc and stem are often made from stainless steel or similar corrosion-resistant alloys. Seat materials like EPDM, NBR, or PTFE are available to suit different temperature ranges and media within the HVAC system (e.g., chilled water, hot water, air).
Versatile Operation: Available with various actuation methods to suit your control scheme:
- Manual Lever: For simple, localized on/off control.
- Gear Operator: Provides easier operation for larger valve sizes or higher differential pressures.
- Pneumatic or Electric Actuator: Enables remote control and integration into the ship's centralized Building Management System (BMS) or HVAC control panel for automated operation.
Superior Sealing & Low Torque Operation: The precision-engineered disc and seat design ensures a bubble-tight shut-off when required, minimizing energy losses. The balanced disc design often reduces operating torque, making manual operation easier and allowing for smaller, more cost-effective actuators.
Compact & Lightweight Design: Compared to gate or globe valves, the butterfly valve design offers a significant space and weight saving—a critical advantage in the space-constrained and weight-sensitive environment of a cargo ship.

Below is a summary of typical specifications and options:

Parameter	Details / Options
Design Standard	JIS F7481
Primary Application	Cargo Ship Centralized HVAC Systems (Retrofit & New Build)
Key Customization	Sleeve Length (Customizable to Project Requirements)
Body Material	Cast Iron, Ductile Iron (Epoxy Coated)
Disc Material	Stainless Steel (304/316), Nickel Plated Carbon Steel
Seat Material	EPDM (Standard), NBR, PTFE (Available upon request)
Connection Type	Wafer, Lug (Dual Flange)
Operation Type	Manual Lever, Worm Gear, Pneumatic Actuator, Electric Actuator
Size Range (Sample)	DN50 (2") to DN600 (24") - Other sizes available
Pressure Rating	PN10, PN16 (or Class 125/150) - Confirm based on system design
Temperature Range	Dependent on seat material (e.g., EPDR: -20°C to +120°C)

Benefits for Your Retrofit Project:

Simplified Installation: Custom sleeve lengths mean the valve arrives ready to install, reducing labor time and potential leak points.
System Reliability: JIS-compliant construction ensures the valve can withstand vibrations, thermal cycling, and the saline atmosphere common on ships.
Improved HVAC Efficiency: Tight shut-off and smooth flow characteristics help maintain designed system pressures and flow rates, optimizing the performance of chillers, fans, and pumps.
Long Service Life & Low Maintenance: Corrosion-resistant materials and robust design minimize downtime and maintenance costs over the valve's lifespan.
Global Supply Support: With ports of shipment in Shanghai, Guangzhou, Hong Kong, and Beijing, and main markets spanning North America, South America, Europe, Asia, Africa, and Oceania, we are positioned to support global retrofit projects with reliable logistics.

Shanghai Zhibang Valve Manufacture Co., Ltd. operates under an ISO9001 certified quality management system, a testament to our commitment to consistent product quality and reliable manufacturing processes. Since our establishment in 2016, we have successfully exported valves valued between US$1 million and US$1.5 million annually, building trust with partners worldwide in the marine and industrial sectors. For your cargo ship HVAC retrofit, choosing our JIS F7481 Butterfly Valve means selecting a component backed by manufacturing expertise, international quality standards, and a proven track record of global delivery. Contact us today to discuss your specific sleeve length requirements and receive a tailored quotation that will help streamline your vessel's upgrade project.

Frequently Asked Questions (FAQ)

Q: What is the significance of the JIS F7481 standard for this valve?
A: The JIS F7481 standard specifies requirements for marine valves, including materials, design, pressure testing, and markings. Using a valve certified to this standard ensures it is suitable for the harsh shipboard environment, aiding in regulatory compliance and system reliability.
Q: How do I determine the correct custom sleeve length needed for my project?
A: The sleeve length is typically the distance between the flanges of the existing piping where the valve will be installed. Please provide the precise measurement between the flange faces, and we will manufacture the valve sleeve to match. Our technical team can also provide guidance on measurement procedures.
Q: Can this valve be used with both air and water in the HVAC system?
A: Yes, it is suitable for both air handling (in ducting) and water services (chilled/hot water loops). The seat material (e.g., EPDM for water, NBR for air) can be selected based on the specific media, temperature, and duty.
Q: What types of actuators are compatible, and can you supply them?
A> We can provide valves configured for manual lever, gear, pneumatic, or electric actuation. We often supply complete packages with valves pre-assembled with actuators (pneumatic or electric) upon request, including necessary brackets and linkages.
Q: What is the typical lead time for an order with custom sleeve lengths?
A: Lead time depends on the order quantity and specific requirements. Generally, for standard material configurations with custom sleeves, production can take 4-6 weeks. We provide more accurate timelines upon receipt of your detailed specifications.
Q: Do you provide documentation like material certificates and test reports?
A: Yes, as an ISO9001 certified manufacturer, we can provide standard documentation including material certificates (CMTR), pressure test reports, and certificates of conformity. These are often required for marine project submissions.
Q: Are your valves suitable for retrofitting older ships from different classification societies (e.g., ABS, DNV, LR)?
A> Our valves are manufactured to the internationally recognized JIS F7481 standard. While final approval always rests with the classification society surveyor for the specific project, our valves and supporting documentation are designed to meet common marine requirements, facilitating the approval process for retrofits.
Q: What are the packaging and shipping terms for international orders?
A: Valves are securely packed in wooden cases for sea freight protection. We ship FOB, CIF, or other Incoterms from major Chinese ports (Shanghai, Guangzhou, Hong Kong, Beijing) as per your preference and can arrange logistics to destinations worldwide.