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Help CenterCompact Dual Plate Wafer Check Valve, 304SS, 300LB, -20°C to 200°C, for Fuel Oil Delivery
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Shanghai Zhibang Valve Manufacture Co., Ltd., an ISO9001-certified manufacturer since 2016, proudly presents our Compact Dual Plate Wafer Check Valve in 304 Stainless Steel, 300LB rating, specifically engineered for fuel oil delivery systems. With an annual export value exceeding US$1 million and a global footprint spanning North America, Europe, Asia, and Africa, our check valve offers reliable backflow prevention, space-saving wafer design, and exceptional durability under demanding conditions. Whether you need a robust solution for offshore platforms, refineries, or industrial fuel pipelines, this valve delivers consistent performance from -20°C to 200°C.
Key Features and Technical Specifications
- Compact Dual Plate Design – Two spring-loaded plates provide quick closing action, reducing water hammer and minimizing pressure loss.
- Full 304 Stainless Steel Construction – Body, plates, hinge pins, and springs are all made from premium 304SS, offering excellent corrosion resistance against fuel oils and hydrocarbons.
- 300LB Pressure Class – Suitable for high-pressure systems up to 50 bar (depending on temperature), ensuring safe operation in demanding fuel delivery applications.
- Wide Temperature Range – Rated from -20°C to 200°C, covering both cold start and hot fuel handling scenarios.
- Wafer Style Connection – Compact, lightweight, and easy to install between flanges, saving space and reducing overall pipeline weight.
- No External Leakage – Zero-leakage design with elastomeric seals (optional Viton or Buna-N) for fuel oil compatibility.
- Low Maintenance – Simple construction with few moving parts, reducing downtime and service costs.
| Parameter | Value |
|---|---|
| Product Type | Compact Dual Plate Wafer Check Valve |
| Body Material | 304 Stainless Steel (ASTM A351 CF8) |
| Pressure Rating | 300LB (Class 300) |
| Temperature Range | -20°C to +200°C |
| Connection | Wafer Type (between flanges ASME B16.5) |
| Design Standard | API 594 / BS 1868 |
| Seal Material | Viton or Buna-N (optional, customizable) |
| Spring Material | 304 Stainless Steel |
| Application | Fuel oil delivery, hydrocarbon pipelines, industrial fluids |
Benefits for Your Application
Our dual plate check valve is designed to minimize pressure drop across the valve, saving energy in pumping systems. The compact wafer design reduces installation costs and fits easily into tight spaces, ideal for skid-mounted fuel oil delivery units. The 304SS construction ensures long service life even with aggressive fuels, while the spring-assisted closure prevents reverse flow and protects downstream equipment. Customizable seal materials allow compatibility with various fuel grades and additives.
- Reduced Water Hammer – Fast plate closure minimizes pressure surges, protecting pumps and piping.
- Lightweight and Compact – Up to 60% lighter than conventional swing check valves, simplifying handling and installation.
- Corrosion Resistance – 304SS resists oxidation and pitting in fuel oil environments.
- Low Leakage Rates – Metal-to-metal or soft-seal options available to meet stringent leakage requirements.
- Versatile Orientation – Can be installed in horizontal or vertical pipelines (flow upward).
Trusted by Global Customers
Shanghai Zhibang Valve Manufacture Co., Ltd. has been delivering high-quality valves since 2016, with an annual export value of US$1 million to US$1.5 million. Our products are shipped from Shanghai, Guangzhou, Hong Kong, and Beijing to markets across North America, South America, Europe, Asia, Africa, and Oceania. We are ISO9001 certified, ensuring consistent quality control and traceability. Each valve undergoes rigorous pressure testing, material verification, and dimensional inspection before shipment. Our team of experienced engineers is available to support custom modifications, including special coatings, seal materials, and non-destructive testing.
Choose our Compact Dual Plate Wafer Check Valve for reliable, long-lasting performance in your fuel oil delivery system. Contact us today for a quote or technical consultation. We are committed to providing competitive pricing, timely delivery, and excellent after-sales service.
Frequently Asked Questions
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What is the difference between a dual plate check valve and a swing check valve?
Dual plate check valves use two spring-loaded plates that open with flow and close quickly when flow stops, reducing water hammer. They are more compact and lighter than swing check valves, making them ideal for limited space installations. -
Can this valve be used for fluids other than fuel oil?
Yes, the 304SS construction and available seal options make it suitable for water, oil, gas, and many chemical fluids. However, always verify compatibility with your specific medium. -
What is the maximum working pressure at 200°C?
For 300LB rating, the maximum allowable pressure decreases with temperature. Typically, at 200°C, the working pressure is derated to approximately 38 bar. Consult our technical data sheet for exact values. -
Does the valve come with flanges?
No, it is a wafer style valve designed to be installed between two pipe flanges (ASME B16.5). The valve itself does not have integral flanges, which reduces weight and cost. -
What seals are available for fuel oil applications?
Standard options include Buna-N (NBR) for general fuel oils, and Viton (FKM) for higher temperature resistance or aggressive fuels. Custom seals are available upon request. -
What is the typical lead time?
For standard sizes (DN50-DN300), lead time is 15-25 working days. Custom sizes or special materials may require longer. Please inquire for exact timelines. -
Is the valve suitable for vertical installation?
Yes, it can be installed vertically with flow upward. The spring design ensures proper closure regardless of orientation. -
Do you provide test certificates?
Yes, we provide material certificates, pressure test reports, and ISO9001 compliance documentation with each shipment.
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