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Cast Steel Marine Gate Valve With Bypass Valve, DN100-DN300 Flanged Connection
Product Spotlights
Cast steel construction ensures durability for marine/industrial use. Integrated bypass valve enhances safety by preventing pressure surges and allows for system testing. Flanged connections (DN100-DN300) ensure secure, leak-proof installation. Manufactured under ISO9001 for consistent quality, with options for various standards and actuation. Supports efficient global logistics from key Chinese ports.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, Cast Steel
Application:
Other, Marine and Industrial Pipelines
Standard:
Other, ISO9001 Certified Manufacturing
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Cast Steel
Application
Other, Marine and Industrial Pipelines
Standard
Other, ISO9001 Certified Manufacturing
Connection Type
Flanged
Size Range
DN100 to DN300
Design Feature
Bypass Valve Included
Pressure Rating
Available upon request
Temperature Range
Customizable
Operation Type
Handwheel Operated
As a professional manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. brings you a robust and reliable solution for demanding marine and industrial applications: the Cast Steel Marine Gate Valve with Bypass Valve. Engineered for durability and precise flow control in critical pipeline systems, this valve is a cornerstone for projects requiring uncompromising performance and safety. Since our establishment in 2016, we have dedicated ourselves to producing high-quality valves that meet the rigorous standards of global markets, exporting to regions including North America, Southeast Asia, Europe, and Africa. Our DN100-DN300 flanged gate valve is designed to handle challenging conditions while offering the added security and functionality of an integrated bypass valve.
This valve is constructed to provide superior shut-off capability and long service life. The inclusion of a bypass valve is a key feature, allowing for pressure equalization and safe operation, which is crucial in high-pressure systems. Below are the detailed features, technical specifications, and advantages that make this product a smart choice for engineers and procurement specialists.
Key Product Features & Technical Specifications:
- Rugged Cast Steel Construction: The valve body and major components are made from high-grade cast steel, providing excellent resistance to corrosion, erosion, and high pressures commonly encountered in marine environments and industrial plants.
- Integrated Bypass Valve System: A smaller bypass valve is built into the main valve design. This allows operators to equalize pressure across the gate before opening the main valve, reducing strain on the actuator and extending the valve's lifespan. It also enables fine flow control for testing or maintenance purposes.
- Flanged Connection for Secure Installation: The flanged ends (DN100 to DN300) conform to standard dimensions (e.g., ANSI, JIS, DIN standards available upon request), ensuring a leak-proof, bolted connection to the pipeline. This design facilitates easy installation, inspection, and maintenance.
- Full Port Design: Offers minimal flow restriction and pressure drop when fully open, ensuring efficient fluid transport and reducing pumping energy costs.
- Rising Stem Design: Provides a visual indication of the valve's open/closed status, enhancing operational safety.
- Versatile Sealing Options: Available with various seat and seal materials (such as reinforced graphite, stainless steel) to match specific media compatibility requirements, including seawater, oil, gas, and steam.
- Robust Operation: Features a handwheel for manual operation. Options for gear operation or actuation (electric, pneumatic, hydraulic) are available for remote or automated control systems.
Technical Parameters Table:
| Parameter | Specification / Value |
| Product Type | Cast Steel Gate Valve with Bypass |
| Size Range (Nominal Diameter) | DN100, DN125, DN150, DN200, DN250, DN300 |
| Connection Type | Flanged (RF, FF, RTJ faces optional) |
| Pressure Class | Commonly PN16, PN25, PN40 (Class 150, 300 available) |
| Body Material | Cast Steel (WCB, LCB, etc.) |
| Bypass Valve Size | Typically DN15 or DN20, integrated |
| Operation | Manual Handwheel (Standard) |
| Temperature Range | Customizable based on trim materials |
| Applicable Media | Water, Oil, Gas, Steam, Seawater (compatible trim required) |
Benefits for Your Project:
- Enhanced System Safety: The bypass valve prevents water hammer and pressure surges during operation, protecting your entire pipeline system from potential damage.
- Reduced Maintenance Costs: The robust cast steel construction and pressure-equalizing feature minimize wear on the valve seat and stem, leading to longer intervals between maintenance and lower lifetime costs.
- Operational Flexibility: Allows for system testing, venting, or draining without operating the main valve, providing greater control over your processes.
- Global Compliance: Manufactured under an ISO9001 certified process, ensuring consistent quality. Flange dimensions can be tailored to meet ANSI, DIN, JIS, or other international standards as required by your project.
- Reliable Supply Chain: With an annual export value between US$1 Million and US$1.5 Million and major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely and efficient delivery to your location worldwide.
Choosing Shanghai Zhibang's Cast Steel Marine Gate Valve means investing in a component backed by nearly a decade of manufacturing expertise and a commitment to international quality standards. Our valves are trusted partners in projects across diverse sectors and continents, from shipbuilding and offshore platforms to power plants and water treatment facilities. We understand the critical nature of reliable valve performance in your operations. Let our proven product, supported by our global logistics network from key Chinese ports, be the dependable solution for your DN100 to DN300 pipeline requirements. Contact us today for a detailed quotation, technical datasheet, or to discuss custom specifications for your specific application.
Frequently Asked Questions (FAQ):
-
Q: What is the primary purpose of the integrated bypass valve on this gate valve?
A: The bypass valve serves two main functions. First, it allows for pressure equalization across the main gate before opening, preventing hydraulic shock and reducing operational torque. Second, it provides a controlled pathway for bleeding, venting, or draining a small amount of fluid without operating the larger main valve. -
Q: Can this valve be used with seawater or other corrosive media?
A: Yes, the cast steel body offers good general corrosion resistance. For highly corrosive media like seawater, we recommend specifying appropriate trim materials (e.g., stainless steel seats, seals) during the ordering process to ensure optimal service life. -
Q: What flange standards do you offer for the DN100-DN300 sizes?
A: We typically manufacture flanges to common international standards such as ANSI B16.5, DIN, JIS 10K/20K, or PN series (EN 1092-1). The specific standard and facing (RF, FF, RTJ) can be specified at the time of order to match your existing pipeline connections. -
Q: Is this valve suitable for high-temperature applications, such as steam lines?
A: Cast steel valves are well-suited for moderate to high-temperature services. The exact temperature limit depends on the pressure class and the selected seat/seal materials. Please provide your operating temperature and pressure details so we can confirm the suitable configuration. -
Q: Do you provide actuated versions of this valve?
A: Absolutely. While the standard configuration is manual handwheel operation, we can equip the valve with electric, pneumatic, or hydraulic actuators for automated control. Gear operators are also available for valves requiring high torque. -
Q: What is the lead time for an order of these valves?
A: Lead times vary based on order quantity, specific configuration, and current production schedule. Generally, for standard specifications, we can arrange shipment efficiently. Our multiple shipment ports (Shanghai, Guangzhou, Hong Kong, Beijing) help expedite the export process. -
Q: How does the ISO9001 certification impact the product quality?
A: Our ISO9001 certification signifies that our entire manufacturing process, from raw material inspection to final testing, follows a documented quality management system. This ensures consistent product quality, traceability, and reliable performance in every valve we produce. -
Q: Are testing and inspection reports provided with the shipment?
A: Yes, standard documentation includes a factory test report covering aspects like hydrostatic shell test, seat leak test, and dimensional inspection. More comprehensive third-party inspection reports can be arranged upon request.
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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