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Help CenterCustom Engineering Marine Check Valve Non-Standard Design per Drawing With 24/7 Technical Support
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Shanghai Zhibang Valve Manufacture Co., Ltd., a reliable manufacturer established in 2016, presents our Custom Engineering Marine Check Valve designed to meet the most demanding marine and industrial applications. Unlike standard off-the-shelf products, our check valves are manufactured entirely per your drawings, ensuring perfect integration with existing piping systems. With an annual export value exceeding US$1 million and a global footprint spanning across North America, Europe, Asia, Africa, and Oceania, we combine precision engineering with round-the-clock technical support to deliver valves that perform flawlessly under harsh marine conditions.
Our marine check valves are crafted from high-grade materials such as stainless steel, duplex stainless steel, super duplex, and bronze, offering exceptional corrosion resistance in seawater environments. The non-standard design capability allows us to accommodate unique pressure ratings, end connections, and disc types (swing, lift, dual plate, or tilting disc) as specified in your drawings. Each valve undergoes rigorous quality control procedures aligned with our ISO9001 certification, ensuring dimensional accuracy and leak-tight performance. Whether you require a size from DN50 to DN600 or custom pressure classes from Class 150 to 2500, we deliver solutions tailored to your project requirements.
Key Features & Technical Specifications
- Custom Engineering: Valves are fabricated strictly according to customer-provided drawings, enabling non-standard designs that standard catalogs cannot fulfill.
- Marine-Grade Materials: Options include 316L stainless steel, Duplex 2205, Super Duplex 2507, and Nickel Aluminum Bronze – all resistant to saltwater corrosion.
- Pressure & Temperature Range: Suitable for operating pressures from vacuum to 2500 psi and temperatures from -29°C to 425°C, depending on material selection.
- Low Pressure Drop: Dual plate and tilting disc designs minimize pressure loss across the valve, improving system efficiency.
- Quick Closure: Features spring-assisted or gravity-assisted closure to prevent reverse flow and water hammer.
- End Connections: Available with flanged (ANSI, DIN, JIS), threaded (NPT, BSP), or welded ends to match your piping specifications.
- Certifications: Manufactured under ISO9001 quality management system; optional API 6D or BS 1868 compliance available upon request.
- 24/7 Technical Support: Our experienced engineers provide real-time assistance for design review, installation guidance, and troubleshooting.
| Parameter | Standard Range | Custom Options |
|---|---|---|
| Size | DN50 – DN600 (2" – 24") | Larger sizes available per drawing |
| Pressure Rating | Class 150 – Class 2500 | PN10 – PN420 or custom |
| Materials | WCB, CF8M, Duplex 2205 | Super Duplex, Bronze, Monel |
| Disc Type | Swing, Lift, Dual Plate | Tilting Disc, Nozzle, Silent |
| End Connection | Flanged (ANSI 150/300) | DIN, JIS, Threaded, Welded |
| Seat Material | PTFE, NBR, Viton | Metal Seat, PEEK |
| Test Pressure | 1.5x Rated Pressure (Shell) | Hydrostatic / Pneumatic per API 598 |
Benefits to Your Project
- Eliminate Reverse Flow Damage: Our valves reliably prevent backflow in marine piping systems, protecting pumps, compressors, and other sensitive equipment.
- Reduced Maintenance Downtime: High-quality stainless steel and advanced coatings extend service life even in aggressive seawater environments.
- Perfect Fit, No Adaptation: Since we manufacture to your drawing, you avoid costly modifications on site.
- Fast Communication: With 24/7 technical support, you can discuss design changes or delivery schedules anytime, reducing project delays.
- Global Logistics: We ship from Shanghai, Guangzhou, Hong Kong, or Beijing – whichever port is most convenient for your destination.
Trust & Reliability – Why Choose Shanghai Zhibang?
Since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. has been dedicated to producing high-quality industrial valves for international markets. Our annual export value of US$1-1.5 million reflects consistent demand from customers across North America, South America, Europe, Africa, and Asia. We hold ISO9001 certification for our quality management system, ensuring every valve meets strict dimensional and performance standards. Our engineers review each customer drawing meticulously before production, and we provide 24/7 technical support to accompany you from design to commissioning. Whether you are outfitting a new vessel, upgrading an offshore platform, or building a desalination plant, our custom marine check valves offer the durability and precision your project demands.
Frequently Asked Questions
Q1: What information do you need to provide for a custom valve?
A: Please share your detailed drawing (2D/3D) including dimensions, material specification, pressure rating, end connections, and any special requirements. Our engineering team will review and confirm within 24 hours.
Q2: Can you manufacture valves made of Monel or Hastelloy?
A: Yes, we can produce check valves from Monel, Hastelloy, Duplex, Super Duplex, and other exotic alloys upon request. Lead time may vary depending on material availability.
Q3: What is the typical lead time for a custom marine check valve?
A: For standard custom designs (non-complex), lead time is around 30-45 working days from drawing approval. Rush orders may be possible with negotiation.
Q4: Do you provide testing certificates?
A: Yes, we provide material test certificates (MTC), hydrostatic test reports, and dimensional inspection records. Additional third-party inspection (such as Bureau Veritas, DNV) is available upon request.
Q5: How do you ensure the valve meets marine classification requirements?
A: We can design to comply with common marine standards like ABS, DNV, Lloyd's Register, and CCS based on your request. Please specify the classification society when placing the order.
Q6: What is your shipping process?
A: We ship via sea or air from Shanghai, Guangzhou, Hong Kong, or Beijing. We can arrange door-to-door delivery or FOB/CIF terms as per your preference.
Q7: Do you offer samples before mass production?
A: Yes, we can produce a prototype or pre-production sample for approval. The cost is negotiable and typically refundable upon large orders.
Q8: What is your warranty policy?
A: We offer a standard 12-month warranty from the date of shipment against manufacturing defects. Extended warranty options are available upon request.
Contact us today to discuss your custom marine check valve needs. Our team is ready 24/7 to provide technical drawings, quotations, and production schedules. Let Shanghai Zhibang be your trusted partner for non-standard valve solutions.
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