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The Cast Iron Wafer Dual Plate Check Valve is a critical component in modern pipeline systems. Designed for durability, high performance, and minimal maintenance, this type of check valve is widely used in water supply, HVAC, fire protection, chemical industries, and more. Manufactured by Zhejiang Zhongguan Valve Manufacture Co., Ltd., this valve offers excellent resistance to corrosion and pressure, making it a dependable choice for fluid control.
A Cast Iron Wafer Dual Plate Check Valve is a non-return valve designed to allow fluid to flow in one direction while preventing backflow. The wafer design allows the valve to fit between two flanges, making it compact and easy to install. The dual plate mechanism ensures quick closure to avoid water hammer effects.
The valve uses two spring-loaded plates that open when the fluid flows in the forward direction. When the flow stops or reverses, the springs push the plates back to their closed position, preventing reverse flow. This design ensures a quick response to flow changes and enhances system protection.
Below is a detailed list of product specifications for the Cast Iron Wafer Dual Plate Check Valve from Zhejiang Zhongguan Valve Manufacture Co., Ltd.:
| Parameter | Specification |
|---|---|
| Body Material | Cast Iron EN-GJL-250 |
| Disc Material | Stainless Steel SS304 / SS316 |
| Size Range | DN50 – DN600 (2" – 24") |
| Pressure Rating | PN10, PN16, ANSI Class 125 / 150 |
| Operation Temperature | -10°C to +120°C (Depending on elastomer) |
| End Connection | Wafer Type (Fits between flanges) |
| Flange Compatibility | DIN, ANSI, JIS, BS Standards |
| Seal Material | EPDM / NBR / Viton |
| Opening Pressure | ≤ 0.03 MPa (Varies by size) |
| Flow Direction | Unidirectional |
Prevents Reverse Flow: Ensures fluid flows in one direction, protecting pumps and other equipment.
Compact and Lightweight: The wafer-style design reduces installation space and weight.
Low Maintenance: Simple design with fewer moving parts minimizes maintenance requirements.
Versatile Applications: Suitable for water, oil, and mildly corrosive media.
Cost-Effective: Cast iron body material offers affordability without sacrificing performance.
This valve is particularly effective in systems with high flow rates and frequent directional changes. The dual-plate design minimizes pressure drop and prevents water hammer, ensuring stable system operation. It's typically seen in large-scale urban water distribution, power plants, industrial pipelines, and municipal engineering systems.
Q1: What makes the Cast Iron Wafer Dual Plate Check Valve suitable for fire protection systems?
A1: This valve is constructed from cast iron with stainless steel plates, making it resilient under sudden pressure changes and high temperatures. Its rapid closing feature protects pumps and equipment during emergency system activation.
Q2: Can I use this valve in chemical pipelines?
A2: Yes, the valve is suitable for low-corrosive medium conditions depending on the seal and disc material selection, such as EPDM for water or Viton for oil and chemical compatibility.
Q3: How do I install the Cast Iron Wafer Dual Plate Check Valve?
A3: It installs between two flanges of your pipeline system. Ensure proper alignment and gasket selection. The installation requires no special tools, making it easy and time-saving.
Q4: What are the common failures to watch out for in dual plate check valves?
A4: Common issues include leakage due to worn-out seals or improper installation, and plate fatigue in high-flow systems. Regular inspection and timely seal replacement can ensure a longer lifespan.
Whether you're upgrading your pipeline or designing a new system, the Cast Iron Wafer Dual Plate Check Valve from Zhejiang Zhongguan Valve Manufacture Co., Ltd. offers reliable and economical solutions. For technical consultations, bulk inquiries, or customization options, contact us today. We're here to support your projects with professional advice and high-quality industrial valves.
Contact Zhejiang Zhongguan Valve Manufacture Co., Ltd. now to request a quote or technical documentation.
