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Home > Industrial Equipment & Components > Valve > Gate Valve > Gate Valve for Shipboard Sewage Treatment Plant Piping, Cast Iron, Flanged Connection

Gate Valve for Shipboard Sewage Treatment Plant Piping, Cast Iron, Flanged Connection

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Gate Valve for Shipboard Sewage Treatment Plant Piping, Cast Iron, Flanged Connection photo-4

Gate Valve for Shipboard Sewage Treatment Plant Piping, Cast Iron, Flanged Connection photo-5

Product Spotlights

Engineered for marine sewage systems, this cast iron flanged gate valve ensures reliable shut-off and durability in corrosive environments. Features full-bore design for minimal pressure drop, rising stem for clear position indication, and compliance with international flange standards. ISO9001-certified manufacturing guarantees quality, supporting efficient and safe operation of shipboard treatment plants with a low lifetime cost.

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

Key Specifications

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Material:

Other, Cast Iron Body and Disc

Application:

Other, Shipboard Sewage Treatment Plant Piping

Connection Type:

Flanged

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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
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Material Other, Cast Iron Body and Disc

Application Other, Shipboard Sewage Treatment Plant Piping

Connection Type Flanged

Valve Type Gate Valve (Rising Stem)

Pressure Rating PN10/PN16 (Standard)

Temperature Range -10°C to 120°C

End Connection Standard ANSI/ASME B16.5, DIN, JIS, GB

Operation Handwheel (Manual), Gearbox (Optional)

Seat Material Bronze or Cast Iron (Standard)

Sealing Resilient Seated or Metal Seated (Optional)

As a professional manufacturer with a focus on industrial valve solutions, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing reliable and durable valves for demanding marine applications. Our Cast Iron Flanged Gate Valve is engineered specifically for shipboard sewage treatment plant piping systems, where dependable shut-off and long service life are paramount. Built to withstand the corrosive and abrasive nature of marine sewage, this valve ensures safe and efficient operation of your vessel's critical environmental systems. We combine robust cast iron construction with precision machining to deliver a product that meets the rigorous standards of the global maritime industry.

Core Product Features & Technical Advantages:

Rugged Cast Iron Construction: The valve body and disc are manufactured from high-grade cast iron, offering excellent resistance to corrosion and erosion from sewage fluids, ensuring a prolonged operational lifespan even in harsh marine environments.
Flanged Connection for Secure Installation: The flanged ends provide a robust, leak-proof connection to the pipeline, facilitating easy installation, maintenance, and replacement. Flanges are machined to precise standards for a perfect fit.
Designed for Marine Sewage Systems: This gate valve is specifically configured to handle the unique challenges of shipboard sewage, including potential solids content, varying pressures, and the need for reliable isolation during maintenance or emergencies.
Full Bore Design: Provides minimal flow restriction when fully open, reducing pressure drop across the valve and improving the efficiency of the sewage pumping and treatment system.
Rising Stem Design: Allows for clear visual indication of the valve position (open or closed), a critical safety feature for shipboard engineers during system checks and operations.
Robust Sealing Options: Available with resilient seats for tight bubble-tight shut-off in typical applications, or metal-to-metal seats for higher temperature or more abrasive service where required.
Versatile Actuation: Standard manual operation via a handwheel is simple and reliable. For larger sizes or applications requiring remote operation, gearbox operators or electric/pneumatic actuators can be supplied as optional accessories.

Detailed Technical Specifications:

Parameter	Specification
Body & Bonnet Material	Cast Iron (GG25/GGG40)
Disc (Gate) Material	Cast Iron, Ductile Iron, or Stainless Steel (Optional)
Stem Material	Stainless Steel (AISI 304/316)
Seat Ring Material	Bronze or Cast Iron (Standard), EPDM/NBR (Resilient)
Pressure Rating (Nominal)	PN10, PN16 (Class 125/150)
Temperature Range	-10°C to 120°C (with standard seats)
Connection Standard	ANSI B16.5, DIN, JIS 10K/20K, GB (Specify)
Face-to-Face Dimension	Complies with API 600, ISO 5752, or as per customer request
Operation	Handwheel (Standard), Gear Operator (Optional for DN≥300)
Paint/Coating	Epoxy Coating (Standard), Special marine-grade coatings available

Benefits for Your Marine Operations:

Enhanced System Reliability: Provides a secure and positive shut-off, preventing backflow and isolating sections of the sewage system for safe maintenance, reducing downtime.
Low Lifetime Cost: The durable cast iron construction and quality internal components minimize wear, leading to fewer replacements and lower long-term maintenance expenses.
Compliance & Safety: The design and materials contribute to meeting relevant marine and environmental regulations for sewage handling onboard vessels.
Global Compatibility: Manufactured to international dimensional standards, ensuring easy integration with existing piping from various global suppliers.
Simplified Inventory: A standardized, reliable valve reduces the need for multiple spare part types and simplifies your vessel's maintenance logistics.

Trust and Proven Performance:

Shanghai Zhibang Valve Manufacture Co., Ltd. operates under a stringent ISO9001-certified quality management system, ensuring consistent product quality from raw material inspection to final testing. With annual export values reaching up to US$1.5 million, our valves are trusted by shipyards, ship owners, and marine equipment suppliers across North America, South America, Europe, Southeast Asia, Africa, and the Middle East. We leverage major ports like Shanghai, Guangzhou, and Hong Kong for efficient global logistics. Choosing our gate valve means selecting a component backed by manufacturing expertise, international quality standards, and a proven track record in supplying the global maritime industry with durable and reliable fluid control solutions.

Frequently Asked Questions (FAQ):

Q: Is this gate valve suitable for seawater applications as well?
A: While designed for sewage, the cast iron body with standard epoxy coating offers good general corrosion resistance. For direct, continuous seawater service, we recommend discussing optional materials like bronze or super duplex stainless steel for critical components.
Q: Can you provide valves with specific flange standards, like JIS or ANSI?
A: Yes, absolutely. We routinely manufacture valves to ANSI/ASME B16.5, DIN, JIS 10K/20K, and GB standards. Please specify your required flange standard, pressure class, and facing details (RF, FF) when inquiring.
Q: What is the lead time for a typical order of these valves?
A: For standard sizes (DN50 to DN300) and specifications, our lead time is typically 4-6 weeks. Larger sizes, special materials, or actuator attachments may require additional time, which we will confirm upon receipt of your detailed requirements.
Q: Do you offer any customization, such as different paint colors or locking devices?
A: Yes, we offer various customization options. Paint color can often be adjusted to match your system specifications. Locking devices for the handwheel or stem can also be supplied as an accessory upon request.
Q: How do you ensure the valve's sealing performance under varying pressures?
A> Our valves undergo rigorous factory testing, including shell tests (at 1.5x rated pressure) and seat leakage tests (per API 598 or equivalent standards). The precision-machined seat and disc interface, combined with appropriate seat material (resilient or metal), ensures reliable sealing across the rated pressure range.
Q: Are spare parts like gland packing or gaskets readily available?
A: Yes, we provide a complete set of recommended spare parts with larger orders, and all common wear parts like gland packing, gaskets, and nuts/bolts are available for separate purchase. This ensures easy maintenance throughout the valve's service life.
Q: What documentation do you provide with the valves?
A: Standard documentation includes a Material Test Certificate (MTC) for main components, a detailed dimensional drawing, a factory test report, and a manual. Certificates of Origin and other shipping documents are provided as needed for export.
Q: Can this valve be used in other industrial applications beyond marine sewage?
A: Certainly. While optimized for marine sewage, this robust cast iron flanged gate valve is also suitable for other industrial water, wastewater, and neutral fluid services in power plants, chemical plants, and building services where its pressure rating and material compatibility are appropriate.