The Double Disc Check Valve (also known as the wafer-type double disc check valve) is an important type of check valve. Its core function is to prevent the backflow of pipeline media. Its structure is characterized by "double disc valve core" and "wafer-type installation", and it has the advantages of small volume, quick opening and closing, and low flow resistance. It is widely applied in industrial and civil pipeline systems such as water supply and drainage, HVAC, petrochemical, and power.
Advantages
1. Easy to install and takes up little space
2. Low flow resistance and small energy loss
3. It opens and closes quickly and has reliable sealing
4. Strong adaptability to working conditions
5. Low maintenance cost and long service life
High-Performance Double Disc & Dual Plate Check Valves
When sourcing a reliable Double Disc Check Valve, industrial buyers require precision engineering and proven durability. Zhejiang Naibang Valves Co., Ltd. (NIPO) stands as a premier manufacturer of high-performance industrial check valves. With nearly 20 years of industry experience, we deliver robust fluid control solutions. These products are designed to prevent flow reversal and protect critical pipeline infrastructure. Our dual plate check valves are trusted worldwide. In fact, 40% of our owned brands are exported globally. To ensure absolute reliability, every valve undergoes 100% pressure testing and material inspection before leaving our facility.
Explore Our Double Disc Check Valve Series
We offer a comprehensive selection of valve types. Our focus is on the connection styles and premium materials required for diverse industrial environments.
Wafer Style Connections
Our wafer style double disc check valve is engineered for maximum space efficiency. It offers reduced weight compared to traditional swing check valves. This compact design makes it the ideal choice for tight piping installations. These valves are available in standard and custom sizes from 1 1/2 to 6 inches and above. They provide rapid closure to minimize water hammer, lowering overall installation and maintenance costs.
Flanged End Designs
For heavy-duty industrial applications demanding structural integrity, our flanged double disc check valves deliver exceptional performance. The flanged end connections ensure secure, leak-proof joints. They perform reliably under high-pressure conditions and severe mechanical vibrations. These models are highly recommended for large-diameter pipelines where robust mounting is essential.
316SS & Corrosion-Resistant Material Options
Selecting the right material is critical for long-term valve performance in aggressive media. NIPO manufactures these fluid control devices in a variety of premium materials. Buyers can choose Cast Iron for standard water applications or Carbon Steel for high-pressure environments. We also provide 316 Stainless Steel (316SS) for superior chemical and corrosion resistance. Additionally, we offer specialized materials like aluminium bronze non-return valves for marine and highly corrosive flow conditions.
Technical Specifications & Dimensional Data
To assist engineers in selecting the correct double disc check valve, we provide comprehensive technical data. Our valves comply with stringent international design standards. This ensures seamless integration into your existing pipelines.
| Specification Category | Technical Details & Capabilities |
| Size Range | 1 1/2" to 6" and larger custom sizes available |
| Pressure Ratings (ASME/ANSI) | Class 150 to Class 2500 |
| Pressure Ratings (DIN/EN) | PN10 to PN420 |
| Design Standards | API, ASME, and DIN compliant |
| Operating Temperature | Dependent on selected body and seal materials |
| Connection Types | Wafer, Flanged, and Lug styles |
Non-Standard Customization & OEM Manufacturing
As a direct manufacturer, NIPO offers extensive non-standard customization and OEM manufacturing services. Complex industrial projects often require unique dimensions or specific performance characteristics. Off-the-shelf products cannot always provide these specialized features. Backed by strong R&D capabilities, our engineering team can produce custom units strictly according to your technical drawings. Whether you need a unique face-to-face dimension or a specialized damping device, we deliver tailored solutions. We guarantee high quality, quick delivery times, and reasonable pricing. Submit your drawing to our team today for a technical consultation.
Industrial Applications for Dual Plate Check Valves
The versatile design and rapid closure mechanism of our double disc check valves make them indispensable. By effectively preventing backflow, these valves protect pumps and compressors across multiple industries. In marine environments, they ensure safe fluid control within ship power cabins and offshore platforms. For the energy and petroleum sectors, our valves handle crude oil and provide critical flow protection. Additionally, they are widely used in municipal water supply networks and chemical processing facilities to manage aggressive fluids safely.
Strict Quality Control & Third-Party Inspections
Quality assurance is the cornerstone of NIPO's manufacturing process. Global buyers require absolute certainty when sourcing critical pipeline components. This is why our non-return valves are subjected to a rigorous quality control system. Every single unit undergoes 100% pressure testing and 100% material inspection. This guarantees leak-free performance and structural integrity. We strictly adhere to international manufacturing standards and maintain complete transparency. To provide ultimate peace of mind, we actively welcome third-party quality checking prior to shipment.
Frequently Asked Questions (FAQ)
What is the difference between a double disc and a dual plate check valve?
There is no functional difference between the two terms. They are industry synonyms for the same type of valve. Both feature two spring-loaded plates that close quickly to prevent flow reversal.
Do you offer custom sizes for wafer double disc check valves?
Yes, NIPO specializes in non-standard customization. We can manufacture these valves according to your specific engineering drawings and dimensional requirements.
What materials are available for your dual plate check valves?
We offer a wide range of materials to suit different industrial environments. Options include 316 Stainless Steel (316SS), Carbon Steel, Cast Iron, and special alloys upon request.
Can I arrange a third-party inspection before my valves are shipped?
Absolutely. We maintain a strict quality control system with 100% pressure and material testing. We fully welcome third-party quality checking to ensure your complete satisfaction.
Contact Your Trusted Double Disc Check Valve Manufacturer
Ready to upgrade your pipeline infrastructure with reliable flow control solutions? As a leading double disc check valve manufacturer, Zhejiang Naibang Valves Co., Ltd. delivers high-quality products. We provide competitively priced solutions tailored to your project needs. Contact our engineering team today to discuss your requirements. You can submit your drawings for a custom quote or explore our extensive range of industrial valves.
