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Help CenterBallast Water System Marine Ductile Iron Dual Plate Check Valve PN16 Wafer CCS Certified
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Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our high-performance Ballast Water System Marine Ductile Iron Dual Plate Check Valve PN16 Wafer CCS Certified. As a specialized manufacturer since 2016, we understand the critical role of reliable flow control in marine ballast water treatment systems. This check valve is specifically engineered to handle seawater, brackish water, and ballast water, ensuring minimal pressure drop and swift response to reverse flow. With the rigorous CCS (China Classification Society) certification, you can trust its compliance with international marine safety standards.
Product Features & Benefits
- Ductile Iron Body – High strength and corrosion resistance, ideal for marine environments.
- Dual Plate Design – Lightweight, short face-to-face dimension, and non-slam operation reduces water hammer.
- Wafer Connection – Easy installation between flanges, saves space and weight.
- PN16 Pressure Rating – Suitable for typical ballast system pressures.
- CCS Certified – Verified by China Classification Society for shipboard use.
- Corrosion-Resistant Trim – Disc and seat materials (optional SS316 or Duplex) prevent seawater attack.
- Low Pressure Drop – Streamlined flow path reduces energy consumption.
- Maintenance-Free – No external moving parts, long service life.
Technical Specifications
| Parameter | Value |
|---|---|
| Material | Ductile Iron (GGG40/GGG50) |
| Pressure Rating | PN16 (16 bar) |
| Connection Type | Wafer (between flanges) |
| Temperature Range | -10°C to +120°C |
| Certification | CCS (China Classification Society) |
| Available Sizes | DN50 – DN600 (custom sizes upon request) |
| Face-to-Face Standard | API 594 / ISO 5752 |
Why Choose Shanghai Zhibang Valve?
- ISO 9001 Certified – Our manufacturing processes meet international quality management standards.
- Experienced Manufacturer – Founded in 2016, we focus on marine and industrial valves.
- Global Reach – Annual export value of US$1 million – US$1.5 million, serving markets across North America, Europe, Asia, Africa, and Oceania.
- Flexible Shipping – We can ship from Shanghai, Guangzhou, Hong Kong, or Beijing ports.
- CCS Certification – Rigorous third-party testing ensures valve reliability under marine conditions.
- Customizable – Trim materials (SS304, SS316, Duplex), spring materials, and coatings available upon request.
Our dual plate check valve is designed to withstand the demanding environment of ballast water systems, providing dependable backflow prevention without the need for external power. The lightweight wafer design reduces installation costs and simplifies maintenance. Whether you are refitting an existing vessel or building a new one, this valve offers a cost-effective solution that meets CCS requirements.
With Shanghai Zhibang Valve, you are partnering with a dedicated team that understands your needs. We have shipped thousands of valves to satisfied customers worldwide, and our commitment to quality is backed by ISO9001 certification. Our engineers are available to assist with technical specifications and customization. Contact us today for a quote or sample order – we look forward to supporting your marine projects.
Trusted by global shipyards and marine system integrators. Since 2016, Shanghai Zhibang Valve has maintained an annual export value exceeding USD 1 million. Our products are used in ballast water treatment, seawater cooling, and fire protection systems on vessels of all types. We pride ourselves on fast delivery, competitive pricing, and reliable after-sales support. Choose Shanghai Zhibang Valve for your next marine valve requirement.
Frequently Asked Questions (FAQ)
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Q: What is the difference between a dual plate check valve and a swing check valve?
A: Dual plate check valves have two spring-loaded plates that close quickly, reducing water hammer and requiring less installation space. They are lighter and more compact than swing check valves, making them ideal for marine ballast systems. -
Q: Is this valve suitable for seawater applications?
A: Yes, the ductile iron body can be internally coated with epoxy, and the trim (disc and seat) can be supplied in stainless steel 316 or duplex materials upon request to resist seawater corrosion. -
Q: What does CCS certification mean?
A: CCS (China Classification Society) certification ensures the valve meets strict marine safety and performance standards. It is recognized internationally for shipboard equipment. -
Q: Can the valve be installed horizontally or vertically?
A: Dual plate check valves can be installed in both horizontal and vertical lines, but for vertical upward flow, it is recommended to consult our technical team to ensure proper spring selection. -
Q: What is the maximum working temperature?
A: Standard design handles temperatures from -10°C to +120°C. For higher temperature applications, special sealing materials are available upon request. -
Q: Do you provide test certificates for shipments?
A: Yes, we provide material certificates, pressure test reports, and CCS certificates as part of the standard documentation. Additional third-party inspection can be arranged. -
Q: What is the lead time for DN200 size?
A: Standard sizes like DN200 are usually in stock or have a production lead time of 15-20 working days. Please contact our sales team for current inventory. -
Q: Can I get a sample before bulk order?
A: Yes, we welcome sample orders. Samples can be shipped via express, and the cost can be deducted from bulk order payment.
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