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Home > Industrial Equipment & Components > Valve > Gate Valve > Manual Marine Gate Valve For Ballast Water Control, Rising Stem, Carbon Steel Construction

Manual Marine Gate Valve For Ballast Water Control, Rising Stem, Carbon Steel Construction

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Product Spotlights

Robust manual marine gate valve engineered for reliable ballast water control. Features durable carbon steel construction for marine environments and a rising stem for clear visual position indication. Ensures positive shut-off, low pressure drop, and easy manual operation. Designed to API/ISO standards, it offers long service life and supports compliance with marine operational safety requirements. Ideal for shipbuilders and vessel operators seeking dependable fluid control solutions.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, Carbon Steel Construction

Valve Type:

Manual Marine Gate Valve

Stem Type:

Rising Stem

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Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Material Other, Carbon Steel Construction

Valve Type Manual Marine Gate Valve

Stem Type Rising Stem

Primary Application Ballast Water Control Systems

Operation Manual Handwheel

Connection Type Flanged (Standard)

Pressure Rating Class 150, 300 (Customizable)

Size Range DN50 to DN600 (2“ to 24“)

Design Standard API 600, API 6D, ISO 9001

End Connection Standard ASME B16.5, DIN, JIS

As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable fluid control solutions for the demanding marine industry. Our Manual Marine Gate Valve for Ballast Water Control is engineered for precision, durability, and dependable performance in critical shipboard applications. With an annual export value exceeding US$1 million, we have established a strong presence across global markets, including North America, Southeast Asia, Europe, and Africa, demonstrating our commitment to quality and customer satisfaction backed by ISO9001 certification.

This valve is specifically designed to manage the flow of ballast water, a crucial function for maintaining vessel stability and trim. Its robust carbon steel construction ensures exceptional resistance to corrosion and mechanical stress in harsh marine environments. The rising stem design provides a clear visual indication of the valve's open or closed position, enhancing operational safety and control for onboard personnel.

Key Features & Technical Advantages:

Superior Construction: Manufactured from high-grade carbon steel, offering excellent tensile strength and durability against the corrosive effects of seawater and varying water chemistries.
Precise Flow Control: The gate design ensures a tight seal in the closed position, providing positive shut-off and minimal pressure drop when fully open, which is vital for efficient ballast system operation.
Reliable Rising Stem Mechanism: The non-rotating rising stem prevents thread wear inside the valve body, extending service life. The stem's vertical movement offers a clear, unambiguous position indicator.
Robust Sealing: Utilizes resilient seat materials or metal-to-metal sealing (options available) to ensure a bubble-tight seal, preventing leakage and cross-contamination between ballast tanks.
Easy Operation & Maintenance: The manually operated handwheel allows for straightforward control without requiring external power sources. The design facilitates easy inspection and maintenance, reducing downtime.
Versatile Compatibility: Designed to integrate seamlessly with standard marine piping systems, with flanged connections conforming to ASME, DIN, or JIS standards as required.

Technical Specifications:

Parameter	Specification
Body Material	Carbon Steel (WCB/A216 WCB)
Stem Material	Stainless Steel (13Cr or 17-4PH available)
Pressure Class	Class 150, Class 300 (Higher classes available)
Size Range	DN50 - DN600 (2" - 24") NPS
Temperature Range	-29°C to 425°C (-20°F to 800°F)
End Connection	Flanged (RF, RTJ), Butt Weld End optional
Design Standard	API 600, API 6D, BS, DIN
Operation	Manual Handwheel (Gear Operator optional for larger sizes)

Benefits for Your Marine Operations:

Enhanced Safety: Reliable isolation of ballast water tanks is critical for ship stability and safety during loading/unloading operations. Our valve provides a secure shut-off.
Operational Efficiency: Low flow resistance minimizes energy loss during ballast transfer, contributing to overall fuel efficiency.
Long Service Life & Reduced TCO: The durable materials and design minimize wear, leading to fewer replacements and lower long-term maintenance costs.
Compliance Support: Robust construction aids in meeting the operational reliability requirements for ballast water management systems under various maritime regulations.
Global Supply Chain Support: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely delivery to shipyards and repair facilities worldwide.

Trust in a manufacturer with a proven track record. Since 2016, Shanghai Zhibang has been supplying high-integrity valves to a global clientele across six continents. Our ISO9001-certified quality management system governs every stage of production, from material sourcing to final testing. The combination of robust carbon steel construction, precise engineering, and a clear rising stem visual indicator makes this gate valve a dependable choice for your vessel's ballast water control needs. We invite shipowners, shipyards, and marine equipment distributors to contact us for detailed quotations, technical data sheets, and to discuss custom specifications tailored to your specific project requirements.

Frequently Asked Questions (FAQ)

Q: What is the primary advantage of a rising stem gate valve for marine applications?
A: The rising stem provides a clear, visual confirmation of the valve's status (open or closed), which is a critical safety feature onboard ships. It also keeps the stem threads outside the valve body, protecting them from corrosive media and reducing wear.
Q: Is carbon steel suitable for prolonged contact with seawater in ballast systems?
A: Yes, the carbon steel used (typically ASTM A216 WCB) is selected for its good mechanical properties and corrosion resistance. For highly corrosive conditions or specific client requirements, optional coatings, stainless steel trim, or alternative materials like bronze or duplex stainless steel can be discussed.
Q: Can this valve be operated remotely or automatically?
A: This specific model is designed for manual operation via a handwheel or, for larger sizes, a manual gearbox. However, we can provide gate valves equipped with electric, pneumatic, or hydraulic actuators upon request for automated ballast control systems.
Q: What standards do your marine gate valves comply with?
A> Our valves are manufactured according to recognized international standards such as API 600 (Gate Valves), API 6D (Pipeline Valves), and ISO standards. Specific certifications can be provided as per the project specification.
Q: What is the typical lead time for an order?
A: Lead times vary based on size, pressure class, and order quantity. Standard sizes often have shorter lead times. We leverage our efficient manufacturing processes and multiple shipment ports to provide competitive delivery schedules, which can be confirmed upon inquiry.
Q: Do you offer customization for non-standard sizes or pressure ratings?
A: Absolutely. As a manufacturer, we have the capability to engineer and produce valves outside the standard size and pressure ranges to meet unique system设计要求. Please provide your detailed specifications for a custom solution.
Q: How do you ensure quality control?
A> Our production is governed by an ISO9001 quality management system. Each valve undergoes rigorous inspections, including material checks, dimensional verification, pressure testing (shell and seat tests), and functional operation tests before shipment.
Q: What after-sales support do you provide?
A: We provide comprehensive technical documentation, including installation and maintenance manuals. Additionally, we offer technical support for installation queries and can supply genuine spare parts like seals, gaskets, and stem packs to ensure long-term performance.