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Home > Industrial Equipment & Components > Valve > Butterfly Valve > JIS F7481 Marine Butterfly Valve for HVAC Systems, Cast Iron Body With EPDM Seal, DN50-DN300

JIS F7481 Marine Butterfly Valve for HVAC Systems, Cast Iron Body With EPDM Seal, DN50-DN300

JIS F7481 Marine Butterfly Valve for HVAC Systems, Cast Iron Body With EPDM Seal, DN50-DN300 thumbnail-3

JIS F7481 Marine Butterfly Valve for HVAC Systems, Cast Iron Body With EPDM Seal, DN50-DN300 thumbnail-4

JIS F7481 Marine Butterfly Valve for HVAC Systems, Cast Iron Body With EPDM Seal, DN50-DN300 thumbnail-5

JIS F7481 Marine Butterfly Valve for HVAC Systems, Cast Iron Body With EPDM Seal, DN50-DN300 photo-1

JIS F7481 Marine Butterfly Valve for HVAC Systems, Cast Iron Body With EPDM Seal, DN50-DN300 photo-2

JIS F7481 Marine Butterfly Valve for HVAC Systems, Cast Iron Body With EPDM Seal, DN50-DN300 photo-3

JIS F7481 Marine Butterfly Valve for HVAC Systems, Cast Iron Body With EPDM Seal, DN50-DN300 photo-4

JIS F7481 Marine Butterfly Valve for HVAC Systems, Cast Iron Body With EPDM Seal, DN50-DN300 photo-5

Product Spotlights

JIS F7481 compliant marine butterfly valve designed for HVAC systems. Features a durable cast iron body and reliable EPDM seal for corrosion resistance and tight shut-off. Available in sizes DN50 to DN300 with optional manual or actuated operation. Ensures system reliability, reduces maintenance, and simplifies compliance for global maritime applications.

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

Key Specifications

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Standard:

JIS F7481

Application:

Other, Marine HVAC Systems

Material:

Cast Iron Body with EPDM Seal

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 HVAC Systems

Material Cast Iron Body with EPDM Seal

Size Range DN50 to DN300

Seal Type EPDM Rubber

Connection Type Wafer or Lug (Optional)

Operation Manual Lever/Gear or Actuator (Optional)

Pressure Rating 10K (Standard), 16K (Optional)

As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing reliable and durable fluid control solutions for demanding applications. Our JIS F7481 Marine Butterfly Valve is engineered specifically for HVAC systems in marine environments, combining robust construction with precise performance to ensure efficient and trouble-free operation onboard vessels. With an annual export value reflecting our global reach and commitment to quality, we understand the critical need for components that withstand harsh conditions while maintaining system integrity.

This valve is designed to meet the rigorous standards of marine engineering, offering a dependable solution for heating, ventilation, and air conditioning circuits. Its core value lies in delivering secure sealing, easy operation, and long service life, which are essential for minimizing maintenance and maximizing uptime in maritime operations.

Key Features and Technical Advantages:

Robust Construction: The valve body is made from high-grade cast iron, providing excellent strength and corrosion resistance, which is crucial for withstanding the saline and humid atmosphere of marine applications.
Superior Sealing Performance: Equipped with an EPDM (Ethylene Propylene Diene Monomer) rubber seal, the valve ensures a tight, bubble-tight shut-off. EPDM is renowned for its outstanding resistance to weathering, ozone, steam, and a wide range of chemicals commonly found in HVAC systems.
Compliance with JIS F7481: Manufactured in strict accordance with the Japanese Industrial Standard F7481 for marine butterfly valves, this product guarantees compatibility, reliability, and performance that meets international maritime industry expectations.
Wide Size Availability: Available in a comprehensive range from DN50 (2") to DN300 (12"), allowing for seamless integration into various piping configurations within marine HVAC systems.
Versatile Operation Options: The valve can be supplied with different actuation methods to suit specific control requirements:
- Manual lever for quick on/off service.
- Manual gearbox for easier operation in larger sizes.
- Pneumatic or electric actuators for automated control systems (available upon request).
Low Torque Operation: The disc and seal design minimizes operating torque, reducing the effort required for manual operation and allowing for the use of smaller, more cost-effective actuators.
Bi-Directional Flow: The valve design permits flow in both directions, simplifying installation and providing flexibility in system layout.

Detailed Technical Specifications:

Parameter	Specification
Product Standard	JIS F7481
Body Material	Cast Iron (GG25/GGG40 equivalent)
Disc Material	Ductile Iron with Epoxy Coating (Standard)
Seal Material	EPDM Rubber
Stem Material	Stainless Steel (SS304/SS316 optional)
Size Range (Nominal Diameter)	DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300
Pressure Rating (JIS 10K)	PN16 (1.6 MPa)
Temperature Range (with EPDM)	-20°C to +120°C (continuous operation)
Connection Type	Wafer (Standard), Lugged (Optional)
Face-to-Face Dimension	Per JIS B 2002 / ISO 5752 Series 14
Leakage Class	Class A (Zero Leakage) per relevant standards

Benefits for Your Marine HVAC Project:

Enhanced System Reliability: The durable cast iron body and high-performance EPDM seal reduce the risk of failures and leaks, ensuring consistent HVAC performance critical for crew comfort and equipment operation.
Reduced Maintenance Costs: The corrosion-resistant materials and reliable sealing mechanism extend service intervals, lowering long-term operational expenses.
Simplified Procurement & Compliance: Adherence to the recognized JIS F7481 standard simplifies specification and ensures the valve meets the requirements of shipyards and classification societies.
Flexible Integration: The wide size range and optional connection types (wafer or lug) allow for easy adaptation to existing or new piping systems.
Global Supply Support: With shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, and a presence in markets across North America, South America, Europe, Asia, Africa, and Oceania, we provide timely delivery and logistical support worldwide.

Shanghai Zhibang Valve Manufacture Co., Ltd. operates under an ISO9001 certified quality management system, which underscores our commitment to consistent product quality and manufacturing excellence. Our annual export value of US$1 Million to US$1.5 Million is a testament to the trust placed in us by clients across diverse global markets, from Eastern Europe to Southeast Asia and the Americas. This valve embodies our dedication to engineering robust solutions for the marine industry. Its combination of JIS standard compliance, material durability, and functional design makes it a prudent choice for ensuring the efficiency and longevity of your vessel's HVAC systems. We encourage you to contact us for detailed quotations, technical datasheets, or to discuss custom requirements for your specific application.

Frequently Asked Questions (FAQ)

Q: Is this butterfly valve suitable for seawater cooling lines in the HVAC system?
A: While the valve body and EPDM seal offer good corrosion resistance, it is primarily designed for the freshwater, chilled water, or air handling circuits within marine HVAC systems. For direct seawater applications, materials like bronze or super duplex stainless steel with different seals (e.g., Viton) would be recommended. Please consult our engineers for specific media compatibility.
Q: Can you supply these valves with different seal materials other than EPDM?
A: Yes, customization is available. While EPDM is standard for its broad HVAC compatibility, we can offer seals in NBR (Nitrile) for oil resistance or Viton (FKM) for higher temperature and chemical resistance, subject to request and feasibility for your order quantity.
Q: What are the main differences between a wafer-type and lug-type connection?
A: A wafer-type valve is installed between two pipe flanges with long bolts. A lug-type valve has threaded inserts (lugs) on both sides, allowing it to be bolted directly to each flange independently. Lug types are often preferred for end-of-line services or where the pipeline might need to be disconnected on one side.
Q: Do you provide actuated versions for automated control?
A: Absolutely. We can equip the valve with pneumatic (on/off or modulating) or electric actuators. Please specify your required torque, control signal (e.g., 4-20mA, 0-10V), and voltage when inquiring.
Q: What documentation accompanies the valves for classification society approval?
A: We can provide standard documentation including Material Test Certificates (MTC), Certificate of Origin, and packing list. For specific classification society certificates (e.g., ABS, DNV, LR), please inform us during the order process as they may involve additional testing and charges.
Q: What is the typical lead time for an order of DN100 valves?
A: Lead time depends on order quantity and specific configuration (e.g., manual vs. actuated). For standard manual lever-operated valves in common sizes like DN100, we often maintain stock or can produce within a few weeks. We provide accurate lead times with every quotation.
Q: Is the epoxy coating on the disc standard, and what is its purpose?
A: Yes, an epoxy coating is a standard feature on the ductile iron disc. It provides an additional barrier against corrosion, prevents galvanic reaction with the body, and ensures smooth operation by reducing friction with the seal.
Q: How does your manufacturing quality control ensure valve performance?
A: Our ISO9001 certification mandates a rigorous quality control process. This includes incoming material inspection, dimensional checks during machining, pressure testing (seat and shell) on every valve, and final visual inspection before packing to ensure all products meet specified performance criteria.