Check valve, double flow, between-flanges, straight DN300PN16 407A300C56

Check Valve – Reliable Protection for Systems

This double-disc wafer check valve, with a diameter of DN300 and nominal pressure PN16, is a robust solution for protecting systems against backflow. Manufactured from GG 25 cast iron (GJL-250), it ensures durability and corrosion resistance. The design featuring a disc and spring made of stainless steel guarantees tightness and long-term, trouble-free operation.

The valve 407A has been designed in accordance with EN558-49, ensuring compatibility with existing systems and easy integration. The stainless steel spring enables effective disc closure in any position, which is particularly important in systems exposed to variable operating conditions. This makes the valve versatile and suitable for a wide range of applications.

Design Features and Applications

This valve is used across a broad spectrum of industrial and municipal installations where protection against medium reversal is required. Its wafer design simplifies installation and removal, while the presence of measurement ports allows monitoring of flow parameters. A flow coefficient (Kvs) of 1504.1 ensures high flow capacity, minimizing pressure losses in the system. The valve can operate in tandem with another valve, expanding its application possibilities. Additionally, the ability to install the valve in any orientation increases installation flexibility.

The valve does not feature a venting function or the possibility of upgrading to an automated version—it is a simple yet effective solution for basic protection against backflow. The housing material—cast iron—is a proven choice, providing mechanical strength and resistance to environmental conditions.