Contact Platform Support
Help CenterMarine Gate Valve With Non-Rising Stem, Conforms to JIS F7363 5K Specification
Product Spotlights
Related Products
-
JIS F7363 5K Cast Iron Gate Valve With Full Port, Flanged End ConnectionNegotiableMOQ: 1 Unit -
5K Pressure Rating Gate Valve for Marine Piping, JIS F7363 CompliantNegotiableMOQ: 1 Unit
-
JIS F7363 Standard Cast Iron Gate Valve With Non-Rising Stem, Manual OperationNegotiableMOQ: 1 Unit
-
JIS F7363 5K Marine Gate Valve With Mill Test Report and 12-Month WarrantyNegotiableMOQ: 1 Unit
-
JIS F7363 Standard Compliant Marine Gate Valve, Full Technical Support AvailableNegotiableMOQ: 1 Unit
As a professional manufacturer with a strong focus on marine fluid control solutions, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Marine Gate Valve engineered to meet the rigorous JIS F7363 5K specification. Designed specifically for the demanding environments of shipbuilding and offshore industries, this valve offers reliable shut-off performance with a compact, non-rising stem design ideal for space-constrained installations. With our ISO9001-certified manufacturing processes and a track record of supplying to global markets from North America to Oceania, we deliver a product built for durability, safety, and compliance.
Core Design & Technical Features:
This marine gate valve is characterized by its robust construction and adherence to the Japanese Industrial Standard (JIS) F7363 for ship valves. The 5K pressure rating indicates its suitability for standard pressure services aboard vessels. The defining feature is the non-rising stem (NRS) mechanism. Unlike rising stem valves where the stem moves up and down, the stem threads are enclosed within the valve body. The handwheel rotation directly actuates the gate without changing the stem's external height. This offers significant advantages in marine applications:
- Space Saving: The overall installed height remains constant, making it perfect for tight engine rooms, bilge systems, and areas with limited vertical clearance.
- Protected Mechanism: The stem threads are isolated from the external environment, reducing corrosion and wear from salty, humid air.
- Stability & Safety: The fixed stem position prevents accidental damage or interference from overhead obstacles.
Detailed Specifications & Construction:
Our valves are manufactured using high-grade materials selected for corrosion resistance and mechanical strength in seawater and marine atmospheres. Typical configurations include:
| Parameter | Specification / Option |
|---|---|
| Body Material | Cast Steel (WCB, WCC), Ductile Iron, Bronze, or Stainless Steel (CF8/CF8M) |
| Disc / Gate Material | Stainless Steel, Bronze, or coated carbon steel for wear resistance |
| Stem Material | Stainless Steel (standard) for high tensile strength and corrosion resistance |
| Seat Design | Metal-to-metal seat (standard per JIS), optional resilient (soft) seat for bubble-tight shut-off |
| Packing | Graphite or PTFE-based packing gland for reliable stem sealing, adjustable |
| Flange Standard | JIS B 2210/2212/2215 flange dimensions (10K/16K/20K face), ANSI/ASME flanges available |
| Size Range | Typically from DN15 (1/2") to DN500 (20"), with DN50-DN300 being most common for marine use |
| Temperature Range | Standard: -20°C to +200°C; wider ranges available with special materials/packing |
| Operation | Handwheel (standard), gear operator optional for larger sizes, extended stem for deck mounting |
Advantages & Benefits for Marine Operators:
- Regulatory Compliance: Conformity to JIS F7363 5K ensures acceptance by major classification societies (e.g., ABS, DNV, LR, BV, NK) for shipboard use, simplifying approval processes.
- Enhanced Durability: The enclosed stem design and corrosion-resistant material selections extend service life, reducing maintenance frequency and total cost of ownership.
- Leak-Free Performance: Precision machining and quality sealing components ensure a tight seal in both open and closed positions, critical for ballast, fuel, and cooling water systems.
- Ease of Operation & Maintenance: The standardized design allows for easy integration into existing piping. The packing gland is externally adjustable for stem seal maintenance without removing the valve from the line.
- Global Supply Chain Support: With annual export values between US$1-1.5 million and major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely and efficient logistics to shipyards worldwide.
Trust & Proven Performance:
Shanghai Zhibang Valve, established in 2016, has rapidly grown into a trusted supplier by combining rigorous quality control under our ISO9001 certification with deep technical understanding of marine applications. Our products are proven in service across diverse markets including North America, Eastern Europe, Southeast Asia, Africa, and the Middle East. Choosing our JIS F7363 5K Marine Gate Valve means selecting a component backed by a manufacturer committed to reliability. It is a valve engineered not just to meet a specification, but to withstand the test of time and the harsh marine environment. Contact us today to discuss your specific requirements, request detailed drawings, or place an order for your next marine project.
Frequently Asked Questions (FAQ):
-
Q: What does "5K" mean in the JIS F7363 5K specification?
A: In JIS standards for valves, "K" is a pressure rating class. 5K corresponds to a nominal pressure of approximately 0.5 MPa (or 5 kgf/cm²). It defines the valve's maximum allowable working pressure at room temperature. -
Q: Can this valve be used with fluids other than seawater?
A: Absolutely. While designed for marine service, it is suitable for a wide range of fluids including fresh water, fuel oil, lubricating oil, and air, provided the material compatibility and pressure/temperature ratings are appropriate for the service. -
Q: What are the main differences between a non-rising stem and a rising stem gate valve?
A: A rising stem valve's stem extends above the handwheel when opened, providing a visual indication of valve position but requiring more vertical space. A non-rising stem valve's handwheel simply rotates on a fixed-height stem, saving space and protecting the threaded mechanism internally. -
Q: Are these valves suitable for throttling or flow control?
A: No. Gate valves, including this model, are designed primarily for isolation (fully open or fully closed). Using them for throttling can cause vibration, wire-drawing (erosion) of the seat and disc, and premature failure. -
Q: Do you provide certificates for classification society approval?
A: As a manufacturer, we can supply the necessary material certificates, test reports (pressure test, etc.), and documentation required by classification societies. Final approval is typically granted by the society's surveyor after witnessing tests or reviewing our certified documentation. -
Q: What flange standards are available besides JIS?
A> While JIS flanges are standard to match the specification, we can often supply valves with ANSI/ASME, DIN, or BS standard flanges upon request, depending on size and order quantity, to suit different international project requirements. -
Q: How do I determine the correct material grade for my application (e.g., Cast Steel vs. Stainless Steel)?
A: The choice depends on the fluid media, temperature, pressure, and specific environmental conditions. Cast steel (WCB) is common for general seawater services. Stainless steel (CF8/CF8M) is recommended for more corrosive media or higher cleanliness requirements. We can advise based on your system details. -
Q: What is your typical lead time for an order of these valves?
A: Lead times vary based on size, material, quantity, and current production schedule. Standard configurations in common sizes may have shorter lead times. We provide reliable schedules upon quotation to help plan your projects effectively.
Send Inquiry to This Supplier
You May Also Like
-
Cast Iron Gate Valve for Marine Piping, JIS F7363 Standard, 9 Classification Societies CertifiedNegotiableMOQ: 1 Unit
-
Handwheel Operated Marine Gate Valve Compliant With JIS F7363 5K StandardNegotiableMOQ: 1 Unit
-
Marine Gate Valve for Engine Room Cooling Water Lines, JIS F7363 5K RatedNegotiableMOQ: 1 Unit
-
JIS F7363 Marine Gate Valve With Mill Test Report, DN50-DN300 Size RangeNegotiableMOQ: 1 Unit
-
JIS F7363 Gate Valve for Japanese Shipyard Construction and RepairNegotiableMOQ: 1 Unit
-
JIS F7363 Marine Gate Valve for Seawater and Bilge Systems, Cast Iron BodyNegotiableMOQ: 1 Unit
-
Marine Gate Valve for Engine Room and Ballast Systems, JIS F7363 Cast IronNegotiableMOQ: 1 Unit
-
JIS F7363 Standard Gate Valve, Technical Data Sheet and Installation Guide ProvidedNegotiableMOQ: 1 Unit
-
JIS F7363 Marine Cast Iron Gate Valve With 2-Year Warranty on Body and TrimNegotiableMOQ: 1 Unit
-
JIS F7363 Marine Cast Iron Gate Valve, 5K/10K Pressure Rating, DN50-DN300NegotiableMOQ: 1 Unit
