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Marine Gate Valve With Bypass Valve, Standard Compliant for Shipbuilding
Product Spotlights
ISO9001-certified marine gate valve featuring an integrated bypass for safe pressure equalization, reducing operational torque and wear. Built with corrosion-resistant materials (cast steel/SS/bronze) for harsh marine environments. Complies with key international shipbuilding standards (ISO, JIS, DIN, ANSI). Available in sizes DN50-DN600 with manual, gear, or pneumatic operation. Enhances system safety, simplifies maintenance, and ensures reliable bubble-tight shutoff for ship and offshore piping systems.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Material:
Other, Cast steel, stainless steel, bronze
Application:
Other, Shipbuilding
Size Range:
DN50 to DN600 (2“ to 24“)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Cast steel, stainless steel, bronze
Application
Other, Shipbuilding
Size Range
DN50 to DN600 (2“ to 24“)
Pressure Rating
PN10 to PN40, Class 150 to Class 300
Connection Type
Flanged end, weld end
Operation Type
Handwheel, gearbox, pneumatic actuator
Standard Compliance
ISO, JIS, DIN, ANSI, GB standards for marine use
Bypass Valve
Integrated or optional, for pressure equalization
Temperature Range
-20°C to 425°C
Design Standard
API 600, API 6D, BS 5152
As a dedicated manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our Marine Gate Valve with Bypass Valve, engineered specifically to meet the rigorous demands of global shipbuilding and offshore industries. Since our establishment in 2016, we have focused on delivering robust and reliable fluid control solutions, exporting to key markets worldwide from our strategic ports. This valve is not just a component; it is a critical safeguard for your marine piping systems, designed to ensure operational safety, reliability, and compliance with international maritime standards.
Our Marine Gate Valve integrates a bypass valve, a feature that significantly enhances system safety and maintenance procedures. This design allows for pressure equalization across the main gate, reducing operational torque and wear, and enabling safer isolation and testing of pipeline sections. Built to withstand harsh marine environments, including saltwater corrosion and high-pressure surges, this valve is a cornerstone for efficient and safe vessel operation.
Key Features & Technical Advantages:
- Superior Construction: Manufactured from premium-grade materials like cast steel, stainless steel, or bronze, selected for their excellent corrosion resistance and mechanical strength in saline and offshore conditions.
- Integrated Bypass System: The built-in bypass valve facilitates easy pressure balancing, protecting the main valve seat and disc from damage during opening/closing under differential pressure, which extends service life.
- Full Compliance: Designed and tested in accordance with major international standards relevant to shipbuilding, including ISO, JIS, DIN, ANSI, and GB, ensuring global acceptance and interoperability.
- Versatile Operation: Available with manual handwheel, gear operator, or automated pneumatic actuation, providing flexibility for various control requirements and accessibility points onboard.
- Bubble-Tight Shut-off: Features a parallel or wedge gate design with precision-machined seats to ensure a reliable, leak-proof seal, crucial for containing hazardous or expensive fluids.
- Maintenance-Friendly Design: Constructed with a bolted bonnet or pressure seal bonnet for easier access to internal components, reducing downtime and maintenance costs.
Technical Specifications Table:
| Parameter | Specification / Range |
|---|---|
| Nominal Diameter (DN) | DN50, DN80, DN100, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600 |
| Pressure Rating | PN10, PN16, PN25, PN40 / Class 150, Class 300 |
| Connection Type | RF Flanged, RTJ Flanged, Butt Weld End |
| Temperature Range | -20°C to 425°C (material dependent) |
| Body Material | WCB, CF8, CF8M, C95800 (Bronze) |
| Trim Material | 13Cr, 304 SS, 316 SS, Monel, optional upon request |
| Bypass Valve Size | Typically DN15 to DN50, customizable |
Benefits for Your Operations:
- Enhanced Safety: The bypass valve minimizes the risk of water hammer and overpressure situations during valve operation, protecting personnel and equipment.
- Reduced Operational Stress: Easier opening and closing under pressure differentials lower the strain on valve components and operating mechanisms.
- Improved System Testing: Isolate sections of piping safely for testing, inspection, or maintenance without needing to depressurize the entire line.
- Long-Term Reliability: High-quality materials and precision engineering result in a durable product with a long service life, reducing total cost of ownership.
- Global Compliance: Facilitates smoother vessel classification and certification processes with major maritime registries.
Trust in a product backed by a manufacturer with a proven track record. Shanghai Zhibang Valve, with its ISO9001-certified quality management system, ensures every valve meets stringent production standards. Our annual export value of US$1 Million to US$1.5 Million underscores our commitment to international markets, including North America, Europe, Asia, and beyond, delivered efficiently from major ports like Shanghai and Guangzhou. Choose our Marine Gate Valve with Bypass Valve for a combination of innovative design, uncompromising quality, and the reliability demanded by the modern maritime industry. Contact us today to discuss your specific requirements and experience the Zhibang advantage.
Frequently Asked Questions (FAQ):
-
Q: What is the primary purpose of the integrated bypass valve on this marine gate valve?
A: The bypass valve serves to equalize pressure across the main gate before opening or after closing. This critical function reduces operating torque, prevents seat and disc damage, and allows for safe isolation of pipeline sections for maintenance or testing. -
Q: Are these valves suitable for both freshwater and seawater applications on ships?
A: Yes, absolutely. The valves are constructed from corrosion-resistant materials like stainless steel (CF8/CF8M) and bronze specifically to handle both freshwater and aggressive seawater environments, ensuring long-term performance. -
Q: Can I order this valve with an actuator for remote operation?
A: Certainly. While standard models come with a handwheel or gear operator, we offer optional pneumatic, electric, or hydraulic actuators to enable automated, remote control, which is ideal for hard-to-reach or frequently operated valves. -
Q: Which international standards does this valve comply with for shipbuilding use?
A: Our valves are designed to meet or exceed key standards such as ISO 15761, JIS B2071/B2081, DIN 3202, ANSI/API 600, and relevant GB (Chinese National) standards, making them widely acceptable for global maritime projects. -
Q: What is the typical lead time for an order of these valves?
A: Lead times vary based on specification, quantity, and material availability. For standard configurations, we typically ship within 4-6 weeks. We provide accurate timelines upon receipt of your detailed inquiry. -
Q: Do you provide documentation like material certificates and test reports?
A: Yes, as an ISO9001-certified manufacturer, we supply comprehensive documentation packages, including material chemical and mechanical test certificates, pressure test reports, and certificates of conformity, which are essential for classification society approvals. -
Q: Is customization available for specific pressure ratings or connection types?
A: Yes, we specialize in customization. We can engineer valves to meet specific pressure classes (e.g., Class 600), non-standard sizes, special trim materials, or unique connection flanges as required by your project specifications. -
Q: From which ports do you typically ship, and what are your main export markets?
A: We ship primarily from Shanghai, Guangzhou, Hong Kong, and Beijing. Our main markets span across North and South America, Europe (Eastern, Western, Northern, Southern), Southeast Asia, East Asia, the Middle East, Africa, and Oceania, supported by our established export operations.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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