A ductile iron (spheroidal graphite) disc check valve is a special type of valve designed to allow liquid or gas to flow in only one direction. This product is integrated into the system to prevent the fluid from moving in the reverse direction. The valve body is generally manufactured from high-strength ductile iron material. In this way, long-term resistance to both corrosion and pressure is ensured.

Thanks to its disc-type design, when the flow direction reverses, the disc is pushed back, and the flow is automatically stopped. This prevents backflow in the system. In addition, it operates passively without requiring any external energy. In this way, energy efficiency is achieved, and system safety is enhanced.

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Where Is It Used?

Ductile iron disc check valves are preferred in a wide range of applications. They are positioned as indispensable components, especially in industrial facilities and liquid and gas transport systems.

Primarily, this type of valve is widely used in water treatment plants to protect pumps. It is also preferred in heating, ventilation, and air conditioning (HVAC) systems to prevent backflow. In chemical processing and power plants, it is employed to ensure process safety.

In addition, it is effectively used in fire protection systems, agricultural irrigation lines, and ship systems. With easy installation and long-lasting performance, it is reliably chosen by engineers across many industries.

What Are the Technical Specifications?

The performance of ductile iron disc check valves is supported by their technical specifications. They are generally offered with the following features:

Body Material: Ductile iron (GGG40 / GGG50)
Disc: Stainless steel or bronze
Seal: EPDM, NBR, or Viton (selected according to the fluid)
Connection Type: Flanged (DIN PN10/16)
Operating Temperature: Between -10°C and +120°C
Pressure Rating: Maximum PN16

All products are tested and certified in accordance with international standards. This increases product reliability and ensures high performance within the system.

Why is the Ductile Iron Disc Check Valve Preferred?

These valves particularly enhance operational efficiency due to their low maintenance requirements and automatic operation. They help prevent pump and equipment failures that could result from backflow. Moreover, thanks to their durable construction, they provide trouble-free performance for many years.

Thanks to the spring mechanism inside the valve, the disc returns quickly. This provides a significant advantage in systems that require rapid closure. Additionally, its easy installation contributes to saving time and labor.