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Home > Industrial Equipment & Components > Valve > Butterfly Valve > JIS F7481 5K Marine Butterfly Valve DN50-DN300 for Small Bore Pipeline Systems
JIS F7481 5K Marine Butterfly Valve DN50-DN300 for Small Bore Pipeline Systems
Product Spotlights
JIS F7481 5K marine butterfly valve for small bore pipelines (DN50-DN300). Compact wafer design, bubble-tight shut-off, corrosion-resistant materials (SS/EPDM/PTFE). Suitable for seawater, fuel oil, and low-pressure systems. ISO9001 certified manufacturer with competitive pricing and global shipping from China ports.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Standard:
JIS F7481
Application:
Other, Marine systems
pressure_rating:
5K
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Standard
JIS F7481
Application
Other, Marine systems
pressure_rating
5K
type
Butterfly Valve
size_range
DN50 - DN300 (2“ - 12“)
body_material
Cast Iron / Ductile Iron / Stainless Steel (customizable)
disc_material
Ductile Iron / Stainless Steel / Aluminum Bronze (optional)
seat_material
EPDM / NBR / PTFE (optional)
connection_type
Wafer / Lug (available upon request)
Shanghai Zhibang Valve Manufacture Co., Ltd. introduces the JIS F7481 5K Marine Butterfly Valve in sizes DN50–DN300, specifically engineered for small bore pipeline systems in marine environments. As a reliable manufacturer since 2016, we combine precision machining with rigorous quality control, backed by ISO9001 certification. This valve delivers leak-tight performance, corrosion resistance, and easy installation for shipbuilding, offshore platforms, and industrial seawater applications. Our annual export value of US$1 million–1.5 million reflects growing trust from clients across North America, Europe, Asia, and Africa.
Key Features & Technical Specifications
- Design Standard: JIS F7481 – Japanese Industrial Standard for marine butterfly valves, ensuring compatibility with Japanese-designed piping systems.
- Pressure Rating: 5K (approximately 0.5 MPa or 73 psi at ambient temperature) – suitable for low-pressure small bore pipelines.
- Size Range: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300 (2" to 12").
- Body Materials: Available in Cast Iron (GG25), Ductile Iron (GGG40/50), or Stainless Steel (CF8/CF8M) – corrosion-resistant options for seawater.
- Disc Materials: Ductile Iron with Nylon coating, Stainless Steel (SS304/SS316), or Aluminum Bronze – each offering different levels of chemical resistance.
- Seat Materials: EPDM (standard for water/seawater), NBR (for oil/fuel), PTFE (for aggressive chemicals) – replaceable liner design for easy maintenance.
- Connection: Wafer type (standard) or Lug type (optional) – fits between JIS 5K flanges.
- Operation: Manual lever (for DN50–DN150) or gearbox (for DN200–DN300); pneumatic/hydraulic/electric actuation available upon request.
| Parameter | Value |
|---|---|
| Standard | JIS F7481 |
| Pressure Rating | 5K (0.5 MPa) |
| Size Range | DN50 – DN300 |
| Face-to-Face Dimension | According to JIS B2002 (wafer type) |
| Flange Drilling | JIS 5K bolt pattern |
| Test Pressure (Shell) | 1.5 x Rated Pressure |
| Test Pressure (Seat) | 1.1 x Rated Pressure |
| Temperature Range | -10°C to +80°C (EPDM) / up to +120°C (PTFE) |
| Suitable Media | Freshwater, seawater, wastewater, fuel oil, light chemicals |
Why Choose Our JIS F7481 Butterfly Valve?
- Space-Saving Design: Compact wafer body fits between flanges, reducing piping footprint – ideal for small bore systems with limited space.
- Bubble-Tight Shut-Off: Resilient seat design ensures zero leakage at rated pressure, preventing costly fluid loss.
- Corrosion Resistance: Available with stainless steel disc and EPDM seat for seawater service; optional Nylon/PTFE coating for extra protection.
- Easy Maintenance: Replaceable seat liner and simple disc-to-stem connection allow quick on-site repairs without special tools.
- Customizable: Lug body, gearbox actuation, electric/pneumatic actuators, and special coatings (e.g., Rilsan, Halar) available upon request.
- Cost-Effective: Optimized casting and machining process delivers competitive pricing without compromising quality.
Trust & Performance Backed by Real Data
Shanghai Zhibang Valve Manufacture Co., Ltd. has supplied butterfly valves to marine projects in Eastern Europe, Southeast Asia, and Africa since 2016. Our ISO9001 certified facility ensures every valve undergoes hydrostatic and pneumatic testing before shipment. With an annual export value exceeding US$1 million, we maintain strict quality control and offer prompt delivery from Shanghai, Guangzhou, Hong Kong, or Beijing ports. Our technical team provides free sizing recommendations and installation guidance – contact us today to discuss your small bore marine pipeline requirements.
Frequently Asked Questions (FAQ)
-
Q: What is the pressure rating “5K” mean?
A: “5K” corresponds to approximately 0.5 MPa (73 psi) at ambient temperature, defined by JIS standard. It is suitable for low-pressure seawater, bilge, and ballast systems. -
Q: Can this valve be used for seawater?
A: Yes, when equipped with a stainless steel disc (SS316) and EPDM seat, it offers excellent corrosion resistance for seawater applications. -
Q: What connection types are available?
A: Wafer type is standard for mounting between JIS 5K flanges. Lug type (with threaded inserts) is optional for dead-end service or easier flange alignment. -
Q: Are actuators compatible with these valves?
A: Yes, we can mount pneumatic, electric, or hydraulic actuators on the ISO5211 top flange. Mounting kits are included upon request. -
Q: What is the temperature limit?
A: With EPDM seat: -10°C to +80°C; with PTFE seat: up to +120°C. Please specify when ordering for high-temperature fluids. -
Q: How do I choose the right disc and seat material?
A: For clean water, EPDM + ductile iron is economical. For aggressive chemicals or high temperatures, PTFE + stainless steel is recommended. Contact our engineers for material selection assistance. -
Q: Do you provide certificates of material or test reports?
A: Yes, we can supply material certificates (MTC) and hydrostatic test certificates at no extra cost. ISO9001 quality system documents are available upon request. -
Q: What is the lead time for DN50-DN300 JIS butterfly valves?
A: For standard sizes with common materials, lead time is 15–25 working days from order confirmation. Custom specifications may require 30–40 days.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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