Contact Platform Support
Help CenterJIS F7301 Bronze Marine Ball Valve With Blow-Out Proof Stem for Safety
Product Spotlights
Related Products
-
JIS F7301 Bronze Marine Ball Valve With Mill Test Report and WarrantyNegotiableMOQ: 1 Unit -
3-Piece JIS F7301 Stainless Steel Ball Valve, Blowout-Proof Stem, Low Torque OperationNegotiableMOQ: 1 Unit
-
JIS F7301 Bronze Marine Ball Valve With NPT Thread for Seawater SystemsNegotiableMOQ: 1 Unit
-
JIS F7301 Bronze Marine Ball Valve for Offshore Platform Firefighting SystemsNegotiableMOQ: 1 Unit
-
JIS F7301 Bronze Marine Ball Valve With Fire-Safe Design for Engine RoomsNegotiableMOQ: 1 Unit
As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing reliable and high-performance fluid control solutions for demanding industrial and marine applications. Our JIS F7301 Bronze Marine Ball Valve with Blow-Out Proof Stem is engineered to meet the rigorous safety and durability standards required in marine environments. Designed with a focus on preventing catastrophic failure, this valve ensures secure operation even under high-pressure conditions, offering peace of mind for shipbuilders, offshore operators, and marine engineers worldwide.
This valve is not just a component; it's a critical safety device. The integration of a blow-out proof stem is a key differentiator, designed to retain the stem and prevent it from being ejected under extreme pressure, a common failure point in standard valves. This feature, combined with adherence to the stringent JIS F7301 standard for marine valves, makes it a preferred choice for applications where failure is not an option. With an annual export value demonstrating our global reach, we understand the diverse requirements of markets from North America and Europe to Southeast Asia and Africa.
Core Product Features & Technical Advantages:
- Superior Safety Mechanism: The patented blow-out proof stem design incorporates a locking ring or shoulder that mechanically locks the stem into the valve body. This prevents stem ejection, ensuring the valve remains operational and containing media safely even if the packing gland is compromised.
- JIS F7301 Compliance: Manufactured strictly according to the Japanese Industrial Standard F7301 for marine bronze valves. This standard specifies materials, dimensions, pressure ratings, and testing methods, guaranteeing interchangeability, reliability, and suitability for saltwater and marine atmospheric conditions.
- Durable Bronze Construction: The valve body, ball, and stem are crafted from high-grade bronze alloy (typically CAC406 or equivalent), offering excellent corrosion resistance against seawater, brackish water, and marine atmospheres. Bronze also provides good machinability and pressure-bearing capacity.
- Reliable Sealing Performance: Utilizes PTFE (Teflon) or reinforced PTFE seats and seals. This ensures bubble-tight shut-off, low operating torque, and resistance to a wide range of chemicals and temperatures, enhancing service life and reducing maintenance.
- Versatile Configuration Options: Available in various end connections (flanged as per JIS B2002/B2212, threaded NPT/BSPT/BSPP) and operators (lever, locking handle, or gear operator for larger sizes), allowing for seamless integration into diverse piping systems onboard vessels or offshore structures.
- Low Maintenance & Easy Operation: The full-port design minimizes pressure drop. The quarter-turn operation allows for quick and easy open/close control, which is crucial during emergency procedures or routine operations at sea.
Detailed Technical Specifications:
| Parameter | Specification |
| Product Standard | JIS F7301 |
| Body/Ball/Stem Material | Bronze (CAC406 / C83600) |
| Seat/Seal Material | PTFE / Reinforced PTFE (Standard) |
| Pressure Rating | PN16 (Standard), Higher ratings available |
| Temperature Range | -20°C to 200°C (-4°F to 392°F) |
| Stem Safety | Blow-Out Proof Design (Integral shoulder/locking ring) |
| Port Type | Full Port (Reduced port optional) |
| Operation | 90° Quarter Turn, Lever Handle (Standard) |
Benefits for Your Operations:
- Enhanced System Safety: Mitigates the risk of sudden stem failure, protecting personnel, equipment, and the environment from hazardous leaks or spills, which is paramount in marine applications.
- Reduced Lifetime Cost: The corrosion-resistant bronze and durable PTFE seats lead to longer service intervals, less frequent replacements, and lower total cost of ownership despite a potentially higher initial investment.
- Global Compliance & Ease of Sourcing: JIS F7301 is widely recognized and accepted in international shipbuilding. Using this standardized valve simplifies procurement, inventory management, and installation for global fleets and shipyards.
- Operational Reliability: Consistent performance in harsh conditions ensures dependable control of seawater cooling lines, ballast systems, fuel lines, bilge lines, and other critical shipboard services.
Frequently Asked Questions (FAQ):
Q1: What exactly does "Blow-Out Proof Stem" mean, and why is it important for marine use?
A: A blow-out proof stem is designed with an integrated mechanical stop (like a shoulder or locking ring) that prevents the stem from being forcibly ejected out of the valve body if internal pressure becomes excessive or if the packing gland fails. In marine environments, where valves control critical and often pressurized systems, this feature prevents catastrophic failure, containing the fluid and maintaining a level of control, which is vital for safety at sea.
Q2: Is this valve suitable for seawater applications?
A: Yes, absolutely. The bronze alloy (CAC406) specified by JIS F7301 is chosen specifically for its excellent resistance to corrosion in seawater and marine atmospheres. Combined with corrosion-resistant trim materials, it is ideally suited for seawater cooling, ballast, firefighting, and other saltwater services.
Q3: Can this valve be used with fluids other than water?
A: While optimized for water services, the PTFE seats and bronze body make it compatible with a range of mild chemicals, oils, fuels, and gases within its pressure and temperature ratings. It is recommended to consult with our technical team for specific media compatibility.
Q4: What are the main differences between JIS F7301 and other standards like ANSI/ASME?
A: JIS F7301 is a Japanese standard specifically tailored for marine bronze valves, covering dimensions, materials, testing, and markings. While ANSI/ASME B16.34 is a broader standard for valves, JIS F7301 ensures specific suitability for marine conditions and often has different face-to-face dimensions and flange standards (JIS B). It's crucial to specify the correct standard for your project's design basis.
Q5: Do you offer valves with different end connections?
A: Yes. We provide flexible configuration options. Standard offerings include flanged ends conforming to JIS B2002/B2212 standards. Threaded ends (NPT, BSPT, BSPP) are also available upon request to match your existing piping system.
Q6: Is a locking device available for this valve?
A: Yes. For applications requiring secured operation to prevent unauthorized or accidental operation, we can supply valves with a locking handle or provide padlockable levers. This is a common requirement for safety and procedural isolation on ships.
Q7: What is the typical lead time for an order?
A: Lead times vary based on order quantity, size, and specific configuration. For standard sizes and configurations, we often maintain stock or have shorter production cycles. We provide accurate lead time estimates with every quotation.
Q8: From which ports do you ship?
A: We have extensive shipping experience and flexibility, primarily exporting from major Chinese ports including Shanghai, Guangzhou, Hong Kong, and Beijing. This allows us to choose the most efficient and cost-effective logistics route for your destination.
Backed by our ISO9001-certified manufacturing processes, Shanghai Zhibang guarantees consistent quality and traceability in every JIS F7301 Bronze Marine Ball Valve we produce. Our proven track record, reflected in an annual export value reaching up to US$1.5 million and a presence across continents from North America and Europe to Africa and Oceania, is a testament to the reliability and acceptance of our products. We don't just sell valves; we deliver safety, durability, and peace of mind for your most critical marine applications. Choose a valve engineered to prevent failure. Contact us today for a detailed quotation, technical datasheets, or to discuss your specific project requirements.
Send Inquiry to This Supplier
You May Also Like
-
JIS F7301 Bronze Marine Ball Valve With Standard Compliant DocumentationNegotiableMOQ: 1 Unit
-
JIS F7301 Bronze Marine Ball Valve for Shipboard Seawater Cooling LinesNegotiableMOQ: 1 Unit
-
JIS F7301 High Pressure Ball Valve PN10MPa DN20-DN40 Technical Support AvailableNegotiableMOQ: 1 Unit
-
JIS F7301 Threaded Ball Valve PN6.4MPa DN15-DN40 Standard CompliantNegotiableMOQ: 1 Unit
-
JIS F7301 Ball Valve PN4.0MPa DN15-DN40 With One-Year WarrantyNegotiableMOQ: 1 Unit
-
Forged Steel JIS F7301 Ball Valve DN15-DN40 Threaded Connection ManualNegotiableMOQ: 1 Unit
-
304 Stainless Steel JIS F7301 Ball Valve PN6.4MPa for Hydraulic SystemsNegotiableMOQ: 1 Unit
-
Forged Steel JIS F7301 Ball Valve PN4.0MPa Manual OperationNegotiableMOQ: 1 Unit
-
Fuel Oil Marine Ball Valve JIS F7301 Compliant, Carbon Steel Construction PN4.0MPa RatingNegotiableMOQ: 1 Unit
-
JIS F7301 High Pressure Ball Valve Forged Steel PN4.0MPa DN15-DN40NegotiableMOQ: 1 Unit
