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Home > Industrial Equipment & Components > Valve > Check Valve > Marine Check Valve Customized Non-Standard 304SS Dual Plate Spring Return PN10/PN16 Lug Style
Marine Check Valve Customized Non-Standard 304SS Dual Plate Spring Return PN10/PN16 Lug Style
Product Spotlights
Customizable non-standard 304SS dual plate spring return check valve in lug style, PN10/PN16. Ideal for marine & industrial backflow prevention. ISO9001 certified, rapid closure, low pressure drop, and corrosion-resistant. Tailor-made dimensions and materials available.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Material:
Other, 304 Stainless Steel
Application:
Other, Marine
Standard:
Other, ISO9001 Manufactured
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Material
Other, 304 Stainless Steel
Application
Other, Marine
Standard
Other, ISO9001 Manufactured
Pressure Rating
PN10 / PN16
Connection Type
Lug Style (Wafer with threaded inserts)
Design
Dual Plate, Spring Return
Customization
Non-Standard Size / Design Available
Operation
Automatic, Spring Assisted Closure
Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, takes pride in delivering high-performance valve solutions to global markets. Our Marine Check Valve Customized Non-Standard 304SS Dual Plate Spring Return PN10/PN16 Lug Style is a prime example of our commitment to quality and flexibility. Designed for demanding marine and industrial applications, this valve combines the corrosion resistance of 304 stainless steel with the proven reliability of a dual plate spring return mechanism. Whether you need a standard size or a completely custom non-standard configuration, our engineering team is ready to meet your specific requirements. With an annual export value of US$1–1.5 million and ISO9001 certification, we ensure every valve delivers consistent performance and long service life.
Key Features & Technical Specifications
- Material Excellence: Full 304 stainless steel body, disc, and spring components offer superior corrosion resistance in seawater, chemical, and humid environments.
- Dual Plate Design: Lightweight yet robust construction reduces pressure drop and allows quick closing action, minimizing water hammer.
- Spring Return Mechanism: Built-in torsion springs ensure positive closure at zero flow, preventing backflow even in vertical installations.
- Lug Style Connection: Threaded inserts allow easy installation between flanges without the need for additional gaskets or support, facilitating maintenance and replacement.
- Pressure Ratings: Available in PN10 (10 bar / 145 psi) and PN16 (16 bar / 232 psi) to suit various system pressures.
- Custom Non-Standard Options: We can modify face-to-face dimensions, flange drilling, disc materials (e.g., 316SS, Duplex), and spring tension to match your unique application.
- Wide Application Scope: Ideal for marine ballast systems, cooling water lines, bilge pumping, offshore platforms, desalination plants, and general industrial piping.
Dimensional & Performance Data (Typical)
| Size (DN) | L (Face-to-Face) mm | H (Overall Height) mm | Weight (kg) – PN16 | Max Working Pressure |
|---|---|---|---|---|
| DN50 | 43 | 60 | 1.2 | 16 bar |
| DN80 | 65 | 90 | 2.8 | 16 bar |
| DN100 | 75 | 105 | 4.5 | 16 bar |
| DN150 | 95 | 150 | 9.0 | 16 bar |
| DN200 | 115 | 195 | 15.0 | 16 bar |
* Dimensions shown are for standard sizes; non-standard custom sizes are available upon request. Face-to-face dimensions can be adjusted to match existing piping layouts.
Why Choose Our Custom Non-Standard Check Valve?
- Tailored to Your System: Unlike off-the-shelf valves, our non-standard option allows you to specify exact mounting dimensions, drilling patterns, and pressure ratings to eliminate costly adapters.
- Enhanced Durability in Marine Environment: 304SS provides excellent resistance to saltwater corrosion, ensuring longevity in ballast and engine cooling systems.
- Fast Response & Low Pressure Drop: The dual plate design opens fully at low flow velocities and closes instantly when flow reverses, protecting pumps and pipelines from surge damage.
- Simplified Maintenance: Lug style construction enables the valve to be removed from the line without disturbing the downstream pipe, reducing downtime during inspection or repair.
- Quality Assurance: Every valve undergoes pressure testing and functional checks in our ISO9001-certified facility. We provide dimensional certificates and material test reports upon request.
Our manufacturing facility in Shanghai, China, is equipped with modern CNC machines and experienced technicians who produce valves for clients across North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. With an annual export value exceeding US$1 million, we have built a reputation for reliable delivery and competitive pricing. Whether you need a single custom valve for a refit or a batch for new construction, we offer flexible lot sizes and short lead times.
Trust Shanghai Zhibang Valve for Your Critical Applications. We back our products with responsive after-sales support and engineering assistance. Contact us today to discuss your non-standard requirements or to request a quote. Our team is ready to provide a solution that fits your exact specifications.
Frequently Asked Questions (FAQ)
- Q: Can you provide custom face-to-face dimensions for this check valve? A: Yes, as a customized non-standard product, we can adjust the face-to-face length, flange thickness, and bolt hole patterns to match your existing piping. Simply provide a drawing or detailed dimensions.
- Q: Is the spring material also 304 stainless steel? A: Standard springs are made of 301 stainless steel for high elasticity and corrosion resistance. Other spring materials like Inconel or 316SS can be provided for special environments upon request.
- Q: What is the minimum order quantity (MOQ)? A: We have no strict MOQ. Even one piece can be produced for custom valves, though lead time and price may vary. Contact our sales for a detailed quotation.
- Q: Can this valve be used for vertical upward flow? A: Yes, the spring return mechanism ensures reliable closing even in vertical lines with upward flow. However, installation orientation should be discussed with our engineers to confirm spring tension is appropriate.
- Q: What certifications do you provide? A: Our manufacturing facility is ISO9001 certified. We can provide material certificates (EN 10204 3.1) and pressure test reports as required. Additional certifications like CE, ABS, or DNV can be arranged at extra cost depending on the project.
- Q: How do you ensure the valve is suitable for seawater? A: 304 stainless steel is highly resistant to seawater corrosion under normal conditions. For long-term immersion or higher chloride levels, we recommend 316SS or Duplex stainless steel as upgrade options.
- Q: What is the standard packing for export? A: Each valve is individually wrapped in plastic, packed in a plywood crate or carton with foam cushioning, and marked with handling instructions. We can also customize packaging according to your shipping requirements.
- Q: Do you offer technical support for installation? A: Absolutely. Our engineers are available via email or video call to provide installation guidelines and troubleshooting advice. We also provide an installation manual with every shipment.
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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