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Marine Gate Valve for Sewage Systems, Includes Mill Test Report and 12-Month Warranty
Product Spotlights
Designed for harsh marine sewage environments, this gate valve offers reliable, bubble-tight shut-off with corrosion-resistant materials. It reduces maintenance costs and system downtime. Each valve comes with full material traceability via a Mill Test Report and is backed by a 12-month warranty from an ISO9001-certified manufacturer, ensuring quality and peace of mind for global marine and industrial applications.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, Cast Iron, Ductile Iron, or Stainless Steel
Application:
Other, Marine Sewage Systems
Standard:
Other, ISO, DIN, JIS, ANSI/ASME
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, Cast Iron, Ductile Iron, or Stainless Steel
Application
Other, Marine Sewage Systems
Standard
Other, ISO, DIN, JIS, ANSI/ASME
Connection Type
Flanged End, Threaded End
Size Range
DN50 to DN600 (2“ to 24“)
Pressure Rating
PN10/16, Class 125/150
Actuation Type
Manual Handwheel or Gearbox
Seat Type
Metal Seated or Resilient Seated
Certification
ISO9001 Quality Management System
Warranty
12 Months from Date of Shipment
As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable fluid control solutions for demanding industrial and marine applications. Our Marine Gate Valve for Sewage Systems is engineered to deliver exceptional performance in the harsh environments of shipboard wastewater management. With an annual export value of $1-1.5 million and a strong presence across global markets from North America to Southeast Asia, we understand the critical need for durable, low-maintenance valves that ensure operational continuity and environmental compliance. This valve is a testament to our commitment to quality, backed by a comprehensive 12-month warranty and a full Mill Test Report for complete material traceability.
This gate valve is specifically designed for on/off and isolation service in marine sewage pipelines, bilge systems, and other wastewater handling applications aboard vessels. Its robust construction ensures reliable sealing and smooth operation even when handling fluids containing solids and abrasive particles. The design prioritizes ease of maintenance and long service life, crucial for operations where downtime is costly.
Key Features & Technical Advantages:
- Superior Corrosion Resistance: Available in a range of materials including cast iron with epoxy coating, ductile iron, and stainless steel (304/316) to withstand the corrosive nature of seawater and sewage.
- Robust Construction for High Pressure: Designed with a solid wedge or flexible wedge disc to provide a tight seal against pressures up to PN16/Class 150, preventing backflow and leaks.
- Low Maintenance Design: Features a simple, yet effective design with minimal internal parts. The stem is designed with a rising or non-rising mechanism, and the packing gland is easily adjustable or replaceable to maintain stem seal integrity.
- Smooth, Low-Torque Operation: The handwheel or gear operator is ergonomically designed for easy opening and closing, even under high differential pressure. Optional gearboxes are available for larger valve sizes.
- Bubble-Tight Shut-off: The precision-machined seat and disc interface ensure a bubble-tight seal when fully closed, essential for isolating sections of the sewage system for maintenance or in case of emergency.
- Full-Port Design: Offers minimal flow restriction and pressure drop when fully open, allowing for efficient passage of fluids and suspended solids, reducing the risk of clogging.
- Versatile End Connections: Supplied with flanged ends conforming to international standards like ISO, DIN, JIS, or ANSI/ASME, ensuring easy integration into existing pipeline systems. Threaded ends are available for smaller sizes.
- Comprehensive Documentation: Each valve is shipped with a detailed Mill Test Report (MTR) that provides verified chemical composition and mechanical properties of the materials used, offering full traceability and quality assurance.
Technical Specifications Table:
| Parameter | Specification |
|---|---|
| Valve Type | Gate Valve (Marine & Sewage Application) |
| Size Range | DN50 to DN600 (2" to 24") |
| Pressure Rating | PN10, PN16 / Class 125, Class 150 |
| Body Material | Cast Iron (Epoxy Coated), Ductile Iron, Stainless Steel 304/316 |
| Disc Material | Bronze, Stainless Steel, or Ductile Iron |
| Seat Material | Metal (Bronze/Stainless) or Resilient (EPDM/NBR) |
| Stem Material | Stainless Steel (Standard) |
| End Connection | Flanged (ISO, DIN, JIS, ANSI), Threaded (NPT, BSP) |
| Operating Temperature | -10°C to 120°C (depending on seat material) |
| Actuation | Manual Handwheel, Gear Operator (Optional) |
| Standards | ISO, DIN, JIS, ANSI/ASME B16.34 |
| Test Standard | API 598, ISO 5208 |
Benefits for Your Operation:
- Enhanced System Reliability: Reduces the risk of unexpected failures in critical sewage handling systems, contributing to vessel safety and environmental protection.
- Reduced Lifetime Cost: The durable construction and low maintenance requirements lead to lower total cost of ownership compared to less robust alternatives.
- Simplified Procurement & Compliance: Supplied with full documentation (MTR) and backed by an ISO9001-certified manufacturing process, simplifying your quality audits and regulatory compliance.
- Global Supply Chain Support: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we offer flexible and efficient logistics to support your projects worldwide.
Trust in a product backed by a manufacturer with a proven track record. Shanghai Zhibang's valves are trusted by clients across North America, South America, Europe, Asia, Africa, and Oceania, reflecting our ability to meet diverse international standards and application needs. Our ISO9001 certification underpins every stage of production, ensuring consistent quality. The included 12-month warranty provides you with peace of mind, while the Mill Test Report offers unparalleled transparency. For a reliable, documented, and competitively priced solution for your marine or industrial sewage system, contact us today to discuss your specifications or request a detailed quotation.
Frequently Asked Questions (FAQ)
-
Q: What makes this gate valve suitable specifically for marine sewage systems?
A: It is constructed with corrosion-resistant materials like coated cast iron or stainless steel to handle seawater exposure and aggressive sewage. Its full-port design minimizes clogging from solids, and it meets relevant marine industry standards for pressure and construction. -
Q: What is included in the Mill Test Report (MTR)?
A: The MTR is a certified document from the material mill. It details the chemical composition, mechanical properties (tensile strength, yield strength), heat treatment, and results of non-destructive tests for the valve's body, disc, and stem materials, providing full traceability. -
Q: Does the 12-month warranty cover all types of failures?
A: The warranty covers defects in material and workmanship under normal use for 12 months from the shipment date. It does not cover damage from improper installation, misuse, lack of maintenance, or exposure to conditions beyond the valve's specified ratings. -
Q: Can I get valves with different flange standards, like ANSI instead of DIN?
A: Yes. We offer flanges conforming to various international standards including ANSI/ASME, DIN, JIS, and ISO. Please specify your required flange standard, pressure class, and facing details when inquiring. -
Q: What is the difference between metal-seated and resilient-seated versions?
A: Metal-seated valves offer higher temperature resistance and durability but may allow minimal leakage. Resilient-seated valves (with EPDM/NBR seats) provide bubble-tight shut-off at lower temperatures and are more forgiving of minor solids in the seat area. The choice depends on your specific service conditions. -
Q: Are these valves suitable for use with seawater as the medium, not just sewage?
A: Yes, especially the versions made from stainless steel (316/316L) or specially coated cast iron. They are designed to resist chloride-induced corrosion and are commonly used in seawater cooling lines, ballast systems, and other marine services. -
Q: Do you offer actuated versions (electric, pneumatic) of this gate valve?
A: While the standard offering is manual operation, we can provide customization with electric or pneumatic actuators upon request. This allows for remote operation and integration into automated control systems. -
Q: What is your typical lead time for an order of these valves?
A: Lead times vary based on size, material, and quantity. Standard configurations typically have shorter lead times. We recommend contacting our sales team with your specific requirements for an accurate production and delivery schedule.
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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