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316L Stainless Steel Marine Gate Valve, DN50-DN200, PN1.6-4.0MPa Flanged
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Marine-grade 316L stainless steel gate valve designed for high corrosion resistance in seawater applications. Available in DN50 to DN200 sizes and pressure ratings up to PN4.0 MPa with flanged connections. Features full bore design, rising stem for position indication, and compliance with API/DIN standards. Ideal for offshore, shipbuilding, and chemical industries requiring durable, reliable flow isolation.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, 316L Stainless Steel
Application:
Other, Marine
Connection Type:
Flanged
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, 316L Stainless Steel
Application
Other, Marine
Connection Type
Flanged
Nominal Diameter (DN)
DN50, DN65, DN80, DN100, DN125, DN150, DN200
Pressure Rating (PN)
PN1.6, PN2.5, PN4.0 MPa
Operation Type
Handwheel (Standard), Gear Operator (Optional)
Design Standard
API 600, API 6D, BS 5152
Temperature Range
-29°C to 425°C
Seat Type
Metal Seat (Standard), Soft Seat (Optional)
End Connection Standard
ANSI B16.5, DIN, JIS, GB
As a professional manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance industrial valves for demanding global markets. Our 316L Stainless Steel Marine Gate Valve is engineered to deliver exceptional reliability and longevity in the harshest marine and offshore environments. With years of expertise since our establishment in 2016, we understand the critical need for valves that can withstand corrosive seawater, high pressure, and extreme operational cycles. This valve represents our commitment to providing robust flow control solutions that ensure operational safety and efficiency for your marine applications.
Constructed from premium 316L stainless steel, this gate valve offers superior corrosion resistance, especially against chlorides present in seawater. Its robust flanged design ensures a secure, leak-proof connection to your piping system, facilitating easy installation and maintenance. The valve is designed for reliable isolation service in pipelines carrying water, oil, gas, and other media.
Key Features & Technical Advantages:
- Superior Corrosion Resistance: The 316L stainless steel composition provides excellent resistance to pitting and crevice corrosion, making it ideal for saltwater and chemical exposure.
- Robust Pressure Handling: Available in pressure classes PN1.6, PN2.5, and PN4.0 MPa, ensuring suitability for a wide range of system pressures.
- Full Bore Design: Minimizes pressure drop across the valve, allowing for efficient, unobstructed fluid flow and facilitating pigging operations.
- Rising Stem & Non-Rising Handwheel: Provides clear visual indication of the valve position (open or closed) for enhanced operational safety.
- Versatile End Connections: Flanges are machined to meet international standards like ANSI, DIN, JIS, and GB, ensuring global compatibility.
- Durable Seating: Standard metal-to-metal seating ensures tight shut-off and long service life. Optional soft seats (PTFE) are available for bubble-tight sealing requirements.
- Extended Service Life: Precision machining, proper heat treatment, and superior surface finish contribute to reduced wear and extended operational cycles.
Detailed Specifications Table:
| Parameter | Specification / Option |
|---|---|
| Body & Bonnet Material | ASTM A351 CF8M / 316L Stainless Steel |
| Stem Material | 316 Stainless Steel |
| Seat & Wedge Material | 316 Stainless Steel (Standard), 316L + STL (Optional) |
| Nominal Diameter (DN) | 50, 65, 80, 100, 125, 150, 200 mm |
| Pressure Rating (PN) | 1.6 MPa (PN16), 2.5 MPa (PN25), 4.0 MPa (PN40) |
| Temperature Range | -29°C to 425°C |
| Operation | Handwheel (Standard), Gear Operator (Available upon request) |
| Design & Test Standards | API 600, API 6D, BS 5152, ISO 5208 |
| Flange Standard | ANSI B16.5 Class 150, DIN PN16/PN25/PN40, JIS 10K/20K, GB |
Benefits for Your Operations:
- Enhanced System Integrity: Prevents leaks and ensures safe isolation, protecting expensive marine equipment and the environment.
- Reduced Maintenance Costs: The corrosion-resistant 316L material significantly reduces failure rates and the need for frequent replacements.
- Global Compliance: Manufactured to internationally recognized standards, facilitating procurement for projects worldwide.
- Operational Flexibility: Available in a comprehensive size (DN50-DN200) and pressure range to match specific system requirements.
- Reliable Supply Chain: As an established manufacturer with an annual export value between US$1-1.5 million, we ensure consistent quality and timely delivery from major Chinese ports.
Our products are trusted by clients across diverse regions including North America, South America, Europe, Southeast Asia, Africa, and Oceania. This global acceptance is a testament to the consistent quality and performance of our valves. Backed by our ISO9001 certified quality management system, every valve undergoes rigorous testing to meet specified standards. Partner with Shanghai Zhibang Valve to equip your marine and industrial systems with durable, high-performance gate valves that stand the test of time and elements. Contact us today for a detailed quotation or to discuss your specific project requirements.
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of using 316L over 304 or 316 stainless steel for marine valves?
A: 316L has a lower carbon content, which minimizes carbide precipitation during welding and enhances its resistance to corrosion in aggressive chloride environments like seawater, reducing the risk of intergranular corrosion. -
Q: Can this valve be used for both on/off service and flow regulation?
A: Gate valves are primarily designed for isolation (fully open or fully closed) to stop or allow flow. They are not recommended for throttling or flow regulation as it can cause vibration, seat wear, and damage to the sealing surfaces. -
Q: Are the flanges drilled according to specific standards, and can they be customized?
A: Yes, our standard valves feature flanges drilled to common standards like ANSI B16.5 or DIN. Custom drilling patterns or specific standards (e.g., JIS, BS) are available upon request to match your existing pipeline flanges. -
Q: What is the lead time for an order of DN100, PN2.5 valves?
A: Lead times vary based on order quantity and current production schedule. Generally, for standard specifications, we maintain stock for common sizes. Please contact our sales team with your required quantity for an accurate delivery schedule. -
Q: Do you provide a manual or documentation with the valve?
A: Yes, each valve shipment includes essential documentation such as a material test certificate, dimensional drawing, and a manual covering installation, operation, and maintenance guidelines. -
Q: Is the valve suitable for handling fluids other than water, such as oils or chemicals?
A: Absolutely. The 316L material offers good resistance to a wide range of chemicals, acids, and alkalis. However, we recommend confirming the compatibility of the valve materials with your specific media, especially at elevated temperatures and concentrations. -
Q: What are the available actuator options if manual operation is not feasible?
A> While a handwheel is standard, we can provide gear operators for high-torque applications. For automated systems, the valve can be configured to accept electric, pneumatic, or hydraulic actuators. Please specify your requirements for a tailored solution. -
Q: What is your warranty policy, and how do you handle after-sales support?
A: We offer a standard warranty against manufacturing defects. Our experienced technical team provides after-sales support for installation guidance, troubleshooting, and can supply genuine spare parts like seals and gaskets to ensure long-term performance.
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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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